JPH08157664A - Polycarbonate/polyolefin resin composition and molded product, its production - Google Patents

Abstract

PURPOSE: To obtain a resin composition improved in compatibility, not causing the laminar peeling, and excellent in mechanical strength and heat resistance by melt-kneading a PC resin, a modified polyolefin resin, and an aminoalkylcarboxylic acid compound. CONSTITUTION: This resin composition is produced by melt-kneading (A) 40-99wt.% of a PC resin, (B) 60-0wt.% of a polyolefin resin, (C) 0.5-60wt.% of a polyolefinic resin modified with one or more kinds of functional groups selected from epoxy group, carboxyl and acid anhydride groups, (D) 0.05-5wt.% of a compound of the formula: HOOC-R-NH2 [R is a >=5C alkene, alkylidene, oligomethylene, (alkylated) phenyl or naphthylene] and, if necessary, (E) 0.1-30wt.% of a styrenic copolymer resin.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a resin composition comprising a polycarbonate and a polyolefin, which has improved compatibility, does not cause delamination, and has excellent mechanical strength and heat resistance, and a method for producing the same. Secondly, it relates to a molded product obtained by melt-molding these compositions. Furthermore, it relates to a polycarbonate and polyolefin resin composition having improved slidability and solvent resistance, and a method for producing the same. Furthermore, thirdly, the present invention relates to a composition and a molded product in which glass fiber is added to these compositions. The present invention provides materials suitable for members such as office automation equipment, home appliances, automobile parts, and medical equipment.

[0002]

2. Description of the Related Art Polycarbonate (hereinafter referred to as PC)
Is excellent in heat resistance, impact resistance, and electrical characteristics, and has good dimensional stability, and is therefore widely used in the automobile field, electric field, and the like. However, since it has a high melt viscosity and is inferior in organic solvent resistance, friction and wear characteristics, its use is limited in fields requiring such characteristics. Therefore, a method has been proposed in which a polyolefin resin is mixed with PC to solve such a drawback of PC (Japanese Patent Publication No. 40-13664 and Japanese Patent Publication No. 59-223741). However, since these compositions have low compatibility between PC and polyolefin, when such a composition is molded into a molded article by a molding method such as injection molding, delamination occurs and the appearance is impaired. It wasn't practical. Therefore, as a method of improving the compatibility between PC and polyolefin, polystyrene and polyolefin such as SEBS (styrene-ethylene / butylene-styrene copolymer) and SEP (styrene-ethylene / propylene copolymer) are used in addition to both components. A composition to which a copolymer consisting of (1) is added (Japanese Patent Laid-Open No. 64-75543, etc.) has been proposed. However, the above-mentioned copolymer consisting of polystyrene and polyolefin has the property of an elastomer, and thus the resulting composition is obtained. Has a drawback that it is particularly poor in heat resistance and bending rigidity.

On the other hand, JP-A-63-215750 discloses that
In addition to PC and polyolefin, a composition comprising PC having a terminal carboxyl group and polypropylene having an epoxy group is also disclosed in JP-A-63-215752.
In addition to C and polyolefin, a composition comprising PC having a terminal hydroxyl group and polypropylene having a carboxyl group is disclosed. These compositions do not exhibit delamination, and have the characteristics of having excellent mechanical strength and organic solvent resistance and excellent appearance (no delamination). However, the carboxyl group- or hydroxyl group-containing PC, which is a constituent component of these compositions, is obtained by adding a special monomer in the polymerization process, and therefore, for example, it does not have a PC polymerization facility. When a person skilled in the art carries out this method, the production is not always easy because it requires a great deal of cost such as newly requiring a polymerization facility for PC. Further, the compositions obtained by these methods are still not sufficient in comparison with the original characteristic values of PC based on the characteristic values described in this patent specification, and further improvement of the characteristic values is desired. ing.

Further, a method of adding a fluororesin such as polytetrafluoroethylene to a polycarbonate resin to improve friction / wear characteristics has been practiced. In addition to the excellent properties of the polycarbonate resin described above, this composition also has excellent sliding properties, so
It is used in home appliances and other parts that require heat resistance, impact resistance and sliding characteristics (gears, cams, etc.). However, since fluororesins are expensive and generate a toxic gas when they are discarded and incinerated, it has been desired to develop a polycarbonate-based sliding material that replaces the polycarbonate / fluororesin-based composition. On the other hand, polyolefins such as high-density polyethylene, low-density polyethylene, and straight-chain low-density polyethylene are inexpensive and have excellent friction and wear properties, but are superior to polycarbonate resin in terms of heat resistance, bending rigidity, and flame retardancy. Since it is inferior, it was difficult to use in the field where the above-mentioned polycarbonate / fluororesin composition is used. Therefore, attempts have been made to develop a composition by mixing polycarbonate and polyethylene, which has the excellent heat resistance, impact resistance, flame retardancy, etc. of polycarbonate resin and the excellent friction and wear characteristics of polyethylene. But,
Polycarbonate and polyethylene have extremely poor compatibility, and when they are simply kneaded, they not only tend to cause layered peeling, but also have a problem that the surface is easily peeled off due to friction and abrasion, resulting in deterioration of abrasion characteristics.

Polycarbonate resin is an amorphous resin, and when it is contacted with an organic solvent for a long period of time, it causes cracks to cause a remarkable poor appearance and mechanical strength is deteriorated. Its use in areas where sex was required was limited. On the other hand, a method for improving the organic solvent resistance of the polycarbonate by adding a crystalline polyester such as polyethylene terephthalate or polybutylene terephthalate to the polycarbonate has been implemented. This composition has excellent compatibility and has both good mechanical strength and organic solvent resistance. However, polyethylene terephthalate and polybutylene terephthalate
It is relatively expensive. Polyolefins such as polypropylene and polyethylene are excellent in organic solvent resistance and are cheaper than the above polyesters, but as described above, since polycarbonate and these polyolefins have poor compatibility, they are resistant to simple kneading. There is a problem that the improvement of the organic solvent property is not sufficiently achieved, and the appearance of the molded product is poor (delamination). As described above, a method for inexpensively improving the solvent resistance of the polycarbonate resin has not yet been achieved.

Further, the glass fiber reinforced polycarbonate resin in which glass fiber is blended with the polycarbonate resin has improved bending rigidity, heat resistance and wear characteristics as compared with the polycarbonate resin alone. However, since the glass fiber reinforced polycarbonate resin still has insufficient wear characteristics, its use has been limited in fields requiring friction and wear characteristics such as gears, cams and bearings.

Therefore, a method of improving friction and wear characteristics by blending a glass fiber reinforced polycarbonate resin with a fluororesin such as polytetrafluoroethylene is practiced. The composition containing these fluororesins has excellent sliding properties in addition to the excellent properties of the glass fiber reinforced polycarbonate resin described above. Therefore, in particular, heat resistance and impact resistance in OA equipment, home appliances, etc. It is used for parts (gear, cam, etc.) that require bending rigidity and sliding characteristics. However, since the fluororesin has the above-mentioned problems, it has been desired to develop a polycarbonate-based sliding material that replaces the glass fiber reinforced polycarbonate resin / fluororesin-based composition. On the other hand, polyolefins, especially high-density polyethylene, low-density polyethylene, linear low-density polyethylene, etc., are inexpensive and have excellent friction and wear properties as described above, but even if glass fiber is added to them, Since it is inferior to the glass fiber reinforced polycarbonate resin in terms of heat resistance, bending rigidity, flame retardancy, etc., it was difficult to use it in the field where the above glass fiber reinforced polycarbonate / fluorine resin composition is used.

Therefore, glass fibers are contained in a compound obtained by mixing polycarbonate and polyethylene to combine the excellent heat resistance, impact resistance and flame retardancy of the polycarbonate resin with the excellent friction and wear characteristics of polyethylene. Attempts have been made to develop such glass fiber reinforced polycarbonate resin compositions. However, as described above, the compatibility between polycarbonate and polyethylene is remarkably poor, and not only delamination is likely to occur simply by kneading,
There is a problem that the surface is easily peeled off at the time of friction / abrasion and the abrasion property is deteriorated, and there is a similar problem when glass fiber is blended in this composition.

[0009]

The first problem to be solved by the present invention is to combine the excellent mechanical properties of PC with the excellent moldability of polyolefin, and to provide excellent surface properties (for delamination). It is an object of the present invention to solve at least one of obtaining a PC-polyolefin resin composition (not shown) by blending readily available raw materials and facilitating the production thereof.

A second object of the present invention is to provide a method for producing the resin composition described above, which is particularly excellent in mechanical properties, by using a simple kneader.

A third object of the present invention is to provide a resin sliding material having excellent heat resistance, mechanical properties, flame retardancy and sliding properties at low cost. More specifically, the present invention solves the above-mentioned problems, and provides a resin composition composed of polycarbonate and polyethylene excellent in compatibility and sliding characteristics, and a molded body obtained by melt molding the same.

Furthermore, a fourth object of the present invention is to provide a resin composition having excellent heat resistance, mechanical properties, flame retardancy and excellent organic solvent resistance at low cost. More specifically, the present invention provides a composition comprising a polycarbonate and a polyolefin having improved compatibility and excellent in organic solvent resistance.

A fifth object of the present invention is to provide a glass fiber reinforced polycarbonate resin composition which is excellent in heat resistance, mechanical properties and flame retardancy and which is excellent in sliding properties at low cost, and the above glass fibers. Made of a reinforced polycarbonate resin composition, excellent in heat resistance, mechanical properties and flame retardancy,
Another object is to provide a molded product having excellent sliding properties.

[0014]

[Means for Solving the Problems]

[1] In the present invention, in order to solve the first problem, the following three aspects of the resin composition are provided. That is, the first aspect of the resin composition is (A) a polycarbonate resin (C) a polyolefin resin modified with at least one functional group selected from the group consisting of an epoxy group, a carboxyl group, and an acid anhydride group, and (D) HOOC-R-NH 2 compound represented by (wherein, R is the formula, 5 or more alkene groups carbons, an alkylidene group, an oligo methylene group or an alkyl phenylene group or naphthylene which may be substituted with a group, Group) is melt-kneaded to obtain a polycarbonate / polyolefin resin composition having improved compatibility.

The second aspect of the resin composition is (A) a polycarbonate resin (B) a polyolefin resin (C) at least one functional group selected from the group consisting of an epoxy group, a carboxyl group, and an acid anhydride group. And a compound represented by (D) HOOC-R-NH ₂ (wherein R is substituted with an alkene group having 5 or more carbon atoms, an alkylidene group, an oligomethylene group, or an alkyl group). Is a phenylene group or a naphthylene group which may be added), and is a polycarbonate / polyolefin resin composition having improved compatibility obtained by melt-kneading.

The third aspect of the resin composition is (A) a polycarbonate resin (B) a polyolefin resin (C) at least one functional group selected from the group consisting of an epoxy group, a carboxyl group, and an acid anhydride group. (D) a compound represented by HOOC-R-NH ₂ (wherein R is substituted with an alkene group having 5 or more carbon atoms, an alkylidene group, an oligomethylene group, or an alkyl group) A phenylene group or a naphthylene group which may be present) and (E) a styrene copolymer resin are melt-kneaded to obtain a polycarbonate / polyolefin resin composition having improved compatibility.

[1-1] Each of the components (A) to (E) which are the starting materials used in the polycarbonate / polyolefin resin composition of the present invention will be described below. (A) PC-based resin PC used in the present invention is a thermoplastic aromatic polycarbonate polymer obtained by reacting an aromatic hydroxy compound or a small amount of this polyhydroxy compound with phosgene, carbonic acid or its diester. It is united. As the aromatic dihydroxy compound, 2,2-bis (4-hydroxyphenyl) propane (= bisphenol A), tetramethylbisphenol A, tetrabromobisphenol A, bis (4-hydroxyphenyl)
-P-diisopropylbenzene, hydroquinone, resorcinol, 4,4'-dihydroxydiphenyl, bis (4-hydroxyphenyl) sulfide, bis (4-hydroxyphenyl) ketone, 1,1-bis (4-hydroxyphenyl) ethane, 1 , 1-bis (4-hydroxyphenyl) cyclohexane and the like, and bisphenol A is particularly preferable from the viewpoint of heat resistance, mechanical properties, moldability and the like. Even if these dihydroxy compounds are used alone, 2
You may use it as a mixture of 2 or more types. As a mixture of two or more kinds, a combination of bisphenol A and tetramethylbisphenol A and a combination of bisphenol A and tetrabromobisphenol A are preferable. The PC resin used in the present invention preferably has a melt index of 1 to 30, more preferably 4 to 20. If this is less than 1, the moldability will be poor and 3
This is because if it exceeds 0, the impact strength particularly decreases.

The PC resin used in the present invention is polyethylene terephthalate, polybutylene terephthalate, bisphenol type polyarylate, 6,6-nylon, 6- with respect to PC as long as the effect of the present invention is not impaired.
A crystalline or amorphous thermoplastic resin such as nylon or 6-10-nylon may be mixed in an amount of preferably 20% by weight or less, more preferably 10% by weight or less. The chemical resistance is improved, and the heat resistance is improved by mixing the amorphous resin.

In the composition of the present invention, the PC resin is preferably contained in an amount of 40 to 99% by weight, more preferably 60 to 95% by weight, still more preferably 80 to 95% by weight. When the content is less than this range, the heat resistance and impact resistance of the composition are lowered, and when it is more than this range, the moldability is poor. The molecular weight of PC is not particularly limited, but preferably the number average molecular weight is 1000 to 100000.
(In terms of polystyrene), more preferably 5000-4
It is 0000. If the molecular weight is less than this range,
Characteristic values such as impact strength of the composition decrease, and if it exceeds this range, moldability decreases. However, the content of PC may be 40% by weight or less for the purpose of improving the heat resistance, rigidity and flame retardancy of the polyolefin resin.

(B) Polyolefin Resin The polyolefin resin used in the present invention includes crystalline polypropylene, crystalline propylene-ethylene block copolymer and random copolymer, low density polyethylene, high density polyethylene, linear chain. Examples thereof include low density polyethylene, ultra high molecular weight polyethylene, ethylene-propylene random copolymer, ethylene-propylene-diene copolymer, and the like. Among them, crystalline polypropylene, crystalline propylene-ethylene copolymer, low density polyethylene, high density polyethylene, linear low density polyethylene, and ultrahigh molecular weight polyethylene are preferable.

The polyolefin resin in the composition of the present invention is preferably 60 to 0% by weight, more preferably 6% by weight.
0 to 0.1% by weight, more preferably 50 to 3% by weight, still more preferably 20 to 3% by weight. When it is more than this range, heat resistance and the like decrease. The melt index (230 ° C., load 2.16 kg) of these polyolefin-based resins is not particularly limited, but preferably,
0.1-70 g / 10 minutes, more preferably 0.5-
It is 30 g / 10 minutes. When it is less than this range, the moldability of the composition is poor, and when it is more than this range, the impact strength is particularly lowered. However, for the purpose of improving the heat resistance and flame retardancy of the polyolefin resin, the amount may be 60% by weight or less.

(C) Polyolefin resin modified with at least one functional group selected from the group consisting of epoxy group, carboxyl group and acid anhydride group. The modified polyolefin resin used in the present invention is as described above. Any polyolefin resin similar to that used in (B) may be used as long as it is copolymerized with an unsaturated monomer containing an epoxy group, a carboxyl group or an acid anhydride group. Examples of the unsaturated monomer containing an epoxy group include glycidyl methacrylate, butyl glycidyl malate, butyl glycidyl fumarate, propyl glycidyl malate, glycidyl acrylate, N-
[4- (2,3-epoxypropoxy) -3,5-dimethylbenzyl] acrylamide and the like can be mentioned. Among them, glycidyl methacrylate, N- [4- (2,3-epoxypropoxy) -3,
5-Dimethylbenzyl] acrylamide is preferred.

Examples of the unsaturated monomer containing a carboxyl group include acrylic acid, methacrylic acid, maleic acid and the like. As the unsaturated monomer containing an acid anhydride group,
Maleic anhydride, itaconic anhydride, citraconic anhydride,
Etc. Among these, acrylic acid and maleic anhydride are preferable because of their reactivity and easy availability.

Any method may be used as a method for copolymerizing an unsaturated monomer having an epoxy group, a carboxyl group or an acid anhydride group with a polyolefin resin. For example, a method of melt-kneading a polyolefin resin and an unsaturated monomer in the presence or absence of a radical initiator using a twin-screw extruder, a Banbury mixer, a kneader-type kneader, or the like, and constituting a polyolefin. Examples thereof include a method in which a monomer and the above-mentioned epoxy group, carboxyl group, or acid anhydride group-containing unsaturated monomer are allowed to coexist and copolymerize. The content of these unsaturated monomers is 0.01 to 10% by weight of the modified polyolefin resin, more preferably 0.1 to 5% by weight. Below this, the composition of the present invention has an effect of improving delamination. If it is more than this, the long-term heat resistance is adversely affected.

The polyolefin resin modified with an epoxy group, a carboxyl group or an acid anhydride group in the composition of the present invention is preferably 0.5 to 60% by weight, more preferably 0.5 to 30% by weight, further Preferably 0.5 to 20
It is contained in the range of% by weight. When the content is less than this range, the compatibility of PC in the obtained composition is lowered to cause delamination, and when it is more than this range, heat resistance and the like are lowered. However, for the purpose of improving the heat resistance and rigidity of the polyolefin resin, 60 wt% or more may be used.

[0026] In the compound represented by HOOC-R-NH ₂ employed in compounds of the present invention represented by (D) HOOC-R-NH 2, R is 5 or more alkene groups, alkylidene group having a carbon oligo A structural unit represented by a methylene group, a phenylene group, or a naphthylene group. The upper limit of the carbon number is not particularly limited, but preferably 20 or less,
It is more preferably 12 or less. If the carbon number is very large, not only industrially difficult to obtain, but also the heat resistance of the obtained composition decreases. The alkylidene group may be linear, branched or alicyclic, and the phenylene group may be p-phenylene, m-phenylene or o-phenylene. Further, the naphthylene group may be any of 2,6-naphthylene group, 2,7-naphthylene group, 1,5-naphthylene group, 1,8-naphthylene group, 4,4′-diphenylene group and the like.
Further, regarding the phenylene group and the naphthylene group, an alkyl group, a carboxyl group, a halogen, an amino group,
It may be substituted with an alkoxy group or the like. Examples of such a compound include 6-aminocaproic acid, 7-aminoheptanoic acid, 8-aminooctanoic acid, 11-aminoundecanoic acid, p-aminobenzoic acid, m-aminobenzoic acid, 2-amino-6-naphthalenecarboxylic acid. Acid, 2-amino-7-naphthalenecarboxylic acid, and the like.

In the composition of the present invention, HOOC-R-
The addition amount of the compound represented by NH ₂ is 0.05 to 5% by weight, preferably 0.05 to 4% by weight, and more preferably 0.05 to 2% by weight. When the amount added is less than this range, the compatibility is lowered and the layered peeling is remarkable, and when the amount added is more than this range, the molecular weight of the PC component is particularly lowered and the impact strength of the resulting composition is lowered.

(E) Styrenic Copolymer Resin The constituent component (E) of the composition of the second aspect of the present invention is
It is a copolymer of styrene and olefin or butadiene. This copolymer may be any of block type, graft type and alternating type. Examples of the block-type copolymer include styrene-ethylene / propylene copolymer, styrene-butadiene-styrene copolymer, styrene-ethylene / butylene-styrene copolymer, and the like, and as the graft-type copolymer, , Polystyrene graft polypropylene, polystyrene / polyacrylonitrile graft polypropylene, polystyrene graft low density polyethylene, polystyrene / polyacrylonitrile graft low density polyethylene, and the like. Examples of the alternating copolymer include a styrene-butadiene copolymer.
The content of the styrene-based copolymer is 0.1 to 30% by weight, preferably 0.5 to 10% by weight. If the content is less than this range, there is no effect of addition, and if it is more than this range, heat resistance and flexural rigidity decrease.

Within the range that does not impair the effects of the present invention, the composition of the present invention contains, in addition to the above components, other thermoplastic resins, resin components other than thermoplastics, elastomers, pigments, organic / inorganic fillers, Etc. may be added. For example, examples of the thermoplastic resin include polyethylene terephthalate, polybutylene terephthalate, nylon, modified PPO, liquid crystalline resin, Teflon, and the like, and examples of the resin component other than the thermoplastic resin include silicone oil and the like. Examples of the inorganic filler include aramid fiber, carbon fiber, talc, mica, calcium carbonate, potassium titanate whiskers, and the like. Further, general additives such as flame retardants, plasticizers, and antioxidants that are added to thermoplastic resins may be added in appropriate amounts.

[1-2] The composition defined in the first aspect of the present invention has improved compatibility between polycarbonate and polyolefin, is easy to balance the properties of both resins, and is free from delamination and the like. Has features that are improved.

[1-3] The composition defined in the second aspect of the present invention has excellent heat resistance, mechanical strength, and surface properties (no delamination).

[1-4] The composition defined in the third aspect of the present invention has further improved impact resistance, moldability and the like while maintaining the above-mentioned characteristics defined in the second aspect of the present invention. Be improved.

[1-5] The resin composition of the present invention is
The composition range is (A) 40 to 99, and more preferably 6
0-95, more preferably 80-95% by weight, (B)
60-0, more preferably 50-0.1, still more preferably 50-3% by weight, further preferably 20-3% by weight, (C) 0.5-60, more preferably 0.5-3.
0, more preferably 0.5 to 20% by weight, (D) 0.
It is preferably in the range of 05 to 5, more preferably 0.05 to 4, and still more preferably 0.05 to 2% by weight, because the balance of mechanical strength, heat resistance, slidability, and solvent resistance is excellent. The above composition may further comprise (E) 0.1-30, preferably 0.5-10, more preferably 0.5-5% by weight.

The resin composition of the present invention has a composition range (A) of 1 to 99, more preferably 1 to 6 in particular.
0, more preferably 3 to 20% by weight, (B) 98 to
0, more preferably 90 to 0, further preferably 10
0% by weight, (C) 0.5 to 99, more preferably 10 to
95, more preferably 20 to 90% by weight, (D) 0.
It is preferable that it is 05 to 5, more preferably 0.05 to 4, and still more preferably 0.05 to 2% by weight because the solvent resistance is improved as compared with polycarbonate alone. The above composition further comprises (E) 0.1 to 30, preferably 0.5 to
It may have 10, more preferably 0.5 to 5% by weight.

[2] Next, a method for producing a composition having excellent mechanical properties, which is the second object of the present invention, will be described. The components (A) to (E) used here have already been described in [1]. The feature of the method for producing the resin composition of the present invention is (D)
Component (C) is melt-kneaded, then component (A) is added and melt-kneaded, or component (D) and component (C) are melt-kneaded, and then (A) polycarbonate resin, ( B)
The polyolefin resin and, if necessary, the (E) styrene copolymer resin are added in an arbitrary order or simultaneously and melt-kneaded.

The production method of the present invention is characterized by a polyolefin resin modified with at least one functional group selected from the group consisting of a carboxyl group and an acid anhydride group, and (D) HOOC-R-NH ₂ (Wherein R represents an alkene group having 5 or more carbon atoms, an alkylidene group, an oligomethylene group, or a phenylene group or a naphthylene group which may be substituted with an alkyl group).

Embedded image The purpose is to obtain a bond and react this functional moiety with the polycarbonate resin. Or a polyolefin resin modified with epoxy group, a compound represented by (D) HOOC-R-NH 2 ( where R is the formula, 5 or more alkene groups carbons, an alkylidene group, an oligo methylene group or,, Represents a phenylene group or a naphthylene group which may be substituted with an alkyl group),

Embedded image The bond is obtained and this functional moiety is reacted with the polycarbonate resin. Therefore, in the method for producing a resin composition of the present invention, the compatibilizing agent precursor of the following polycarbonate resin and polyolefin resin and the compatibilizing agent obtained therefrom are prepared as intermediates. The composition of the present invention obtained via the functional group moiety (H) is preferable because unnecessary side reactions can be reduced.

"Compatibilizer precursor of polycarbonate resin and polyolefin resin" (C) Polyolefin resin modified with at least one functional group selected from the group consisting of an epoxy group, a carboxyl group, and an acid anhydride group. And (D) HOOC-R-
A compound represented by NH ₂ (wherein R represents 5 carbon atoms)
The above alkene group, alkylidene group, oligomethylene group, or phenylene group or naphthylene group which may be substituted with an alkyl group are shown. ) Is obtained.

"Compatibilizer of Polycarbonate Resin and Polyolefin Resin" (A) Polycarbonate resin and (C) Modified with at least one functional group selected from the group consisting of epoxy group, carboxyl group, and acid anhydride group. And a compound represented by (D) HOOC-R-NH ₂ (wherein R is substituted with an alkene group having 5 or more carbon atoms, an alkylidene group, an oligomethylene group, or an alkyl group) It shows a good phenylene group or naphthylene group.).

In the resin composition of the present invention, since this intermediate is prepared in the melt-kneading step, the compatibility between the polycarbonate resin and the polyolefin resin is improved and polymer alloying is achieved. Alternatively, it is presumed that a graft polymer of a polycarbonate resin and a polyolefin resin is generated. These reactions can be carried out at the same time as mixing the respective components in, for example, a twin-screw extruder, and are so-called reactive processing steps, so that the efficiency is extremely good.

The reason why the compatibilizer obtained in the present invention is an effective compatibilizer for polycarbonate and polyolefin is considered as follows. -NH ₂ contained in the component (D)
The group reacts with a carboxyl group and an acid anhydride group contained in the component (C) to form an amide bond, or reacts with an epoxy group to form an amino bond, and the component (D) is added to the component (C). As a result, the carboxyl group derived from the component (D) is introduced into the component (C) via a specific chemical bond such as an amide bond or an amino bond. The carboxyl group introduced into the component (C) reacts with the carbonate bond in the component (A) to form a polycarbonate-grafted polyolefin in which the polycarbonate and the component (C) are combined with an ester bond, a polycarbonate having a terminal --OH group, and CO _2. Is decomposed into. Since the polycarbonate-grafted polyolefin produced here has a polycarbonate component and a polyolefin component in the same molecule, it becomes an effective compatibilizer for the polycarbonate / polyolefin resin composition. In order to obtain a more effective compatibilizer, the amount of functional groups in the component (C),
The amounts of the component (D) and the component (A) are preferably stoichiometrically equivalent to each other, and in addition, the degree of polymerization of the component (A) and the degree of polymerization of the polyolefin in the component (C) are high. Better.

In the method for producing the resin composition of the present invention, in order to efficiently promote the above-mentioned polymer alloying, as a device for melt-kneading the polymer, for example, a single-screw extruder, a twin-screw extruder, a kneader, Brabender, etc. can be applied, but especially for efficient alloying, 2
The axial extruder is good. The reaction (melt kneading) condition is preferably 265 ° C or higher and lower than 380 ° C. More preferably, it is 270-340 degreeC. If it is less than 265 ° C., sufficient compatibilization between PC and polyolefin does not occur, and when the obtained resin composition is molded, delamination is likely to occur. Further, when the temperature is 380 ° C. or higher, the obtained resin composition is thermally decomposed and the mechanical properties are poor. Depending on the case, some of the constituents, for example, a part of PC and HOO
After previously kneading the compound represented by C—R—NH ₂ ,
Although the method of kneading the remaining components into this may be adopted,
A compatibilizing agent precursor is formed in the melt-kneading step, which serves as a compatibilizing agent, and the compatibilizing agent or the compatibilizing agent is preferably (A) a polycarbonate resin and / or (E) a styrene copolymer resin. Polyolefin particles are microphase dispersed with the blended matrix as a matrix,
The average particle size of the particles is 0.1μ when observed with an electron microscope.
It is particularly preferable that the average aspect ratio is 5 or less in order to obtain a molded article having excellent slidability.

The characteristic steps of the manufacturing method of the present invention will be described below. (1) A polyolefin-based resin modified with at least one functional group of an epoxy group, a carboxyl group and an acid anhydride group is modified with HOOC-R-NH ₂ to prepare a polycarbonate / polyolefin-based compatibilizer precursor. Step; a step of modifying a polyolefin resin modified with at least one functional group of an epoxy group, a carboxyl group and an acid anhydride group with HOOC-R-NH ₂ is an epoxy group, a carboxyl group and an acid anhydride group. Of 100% by weight of the polyolefin resin modified with at least one of the functional groups, preferably HOOC-R-NH
After uniformly mixing 0.05 to 5% by weight of the compound represented by ₂ with a Henschel mixer or the like, a melt kneader such as a twin-screw extruder or a kneader type kneader is preferably used.
It is carried out at 0 to 340 ° C. At this time, HOOC-R-N
When the addition amount of the compound represented by H ₂ is less than 0.05% by weight, the effect of improving compatibility is lowered, and when it is more than 5% by weight, heat resistance is lowered. Further, when the reaction temperature (kneading temperature) is lower than the above temperature, the progress of the reaction is slow, so that the reaction cannot proceed sufficiently.
In particular, the resin is remarkably deteriorated and the characteristic value is remarkably reduced.

(2) Step of melt-kneading the obtained compatibilizing agent precursor, PC resin and, if necessary, polyolefin resin; HOOC-R obtained in the above-mentioned step
-NH ₂ -modified polyolefin resin is preferably 2 to 40% by weight, polyolefin resin is preferably 0 to 20% by weight, and PC resin is preferably 60 to 99% by weight in advance with a Henschel mixer or the like. It is carried out by melt-kneading at a temperature of 220 to 340 ° C. using a twin-screw extruder, a kneader type kneader, or the like.

When the compounding amount of the compatibilizing agent precursor is less than the above range, the compatibility is lowered, while when it is more than the above range, the heat resistance is lowered. Moreover, when the content of the polyolefin-based resin is more than the above range, the heat resistance decreases. Further, when the content of the PC resin is less than the above range, the heat resistance is lowered, and when it is more than the above range, the organic solvent resistance and the like are lowered. If the kneading temperature is lower than the above range, the resin will not be sufficiently melted and uniform dispersion will be difficult. If it is higher than the above range, the resin will be significantly deteriorated and the mechanical strength will be lowered.

[2-1] As a method for producing the resin composition of the present invention, there is a method in which the components (A) to (E) are each used in a predetermined amount and melt-kneaded. This method is characterized by a simple process and is preferable in terms of manufacturing cost.

[2-2] Further, there is a method for producing a resin composition in which (A) a polycarbonate resin is melt-kneaded with a precursor of the above-mentioned compatibilizer, and this method suppresses the decomposition of the polycarbonate resin. It is preferable because it has characteristics and the impact strength of the obtained composition is improved.

[2-3] Separately as a precursor of the compatibilizer,
There is a method for producing a resin composition in which (A) a polycarbonate resin, (B) a polyolefin resin and (E) a styrene copolymer resin are melt-kneaded in any order or at the same time. In this method, compatibility control is possible. It is easy to control, and is preferable from the viewpoint of easy control of the characteristic value.

[2-4] Next, the above-mentioned compatibilizer is added to
There is a method for producing a resin composition by melt-kneading (A) a polycarbonate resin, and this method also has a feature that the compatibility can be easily controlled and is preferable in controlling the characteristic value.

[2-5] A resin composition in which (A) a polycarbonate resin, (B) a polyolefin resin and (E) a styrene copolymer resin are melt-kneaded in an optional order or simultaneously with the compatibilizing agent. There is also a production method, and this method also has a feature that the compatibility is easily controlled, and is preferable in controlling the characteristic value.

[2-6] Next, (B) a polyolefin resin, an acid anhydride, and (D) a compound represented by HOOC-R-NH ₂ (wherein R is an alkene group having 5 or more carbon atoms). , An alkylidene group, an oligomethylene group, or
It represents a phenylene group or a naphthylene group which may be substituted with an alkyl group. ) Is melt-kneaded, and (A) a polycarbonate resin and (E) a styrene-based copolymer resin are melt-kneaded in any order or simultaneously, and there is also a method for producing a resin composition. This is preferable from the viewpoint of improving impact strength.

[2-7] Further, (A) a polycarbonate resin and (D) a compound represented by HOOC-R-NH ₂ (wherein R represents an alkene group having 5 or more carbon atoms, an alkylidene group, an oligomethylene group). Group, or a phenylene group or a naphthylene group which may be substituted with an alkyl group) are melt-kneaded, and further selected from the group consisting of the following component (C) and the following components (A) and (B). There is a method for producing a resin composition in which at least one component is melt-kneaded in an arbitrary order, and this method is characterized by high compatibility and is preferable from the viewpoint of the effect of improving delamination. (A) Polycarbonate resin (B) Polyolefin resin (C) Polyolefin resin modified with at least one functional group selected from the group consisting of epoxy groups, carboxyl groups, and acid anhydride groups.

The molded product obtained by melt-molding the composition of the present invention can be manufactured by a molding processing method generally used for thermoplastic resins, and examples thereof include injection molding, blow molding, sheet molding, Lamination molding, stamping molding and the like can be applied, but the injection molding method is preferable. According to the composition of the present invention and the method for producing the same, PC- having excellent heat resistance, mechanical strength and surface appearance (not showing delamination).
The polyolefin-based resin composition can be effectively produced using readily available raw materials. It is considered that the reason why the properties and surface properties of the composition are excellent is that the compatibility between PC and the polyolefin resin is improved by the chemical reaction of the constituent components (C) and (D). The fact that the compatibility between PC and the polyolefin resin is improved by the constituent components (C) and (D) is apparent from an electron microscope observation of the fracture surface, as will be described later.

[3] The third aspect of the present invention, the molding material excellent in slidability will be described below. The molding material excellent in slidability of the present invention is a molding material obtained by melt-molding the resin composition described in [1] of the present invention, and has excellent heat resistance, mechanical properties and flame retardancy. A resin sliding material having the above and excellent sliding characteristics can be obtained at low cost. The resin composition to be used is not particularly limited, but the following composition is preferably used. (A) 99-85, preferably 98-90% by weight (C) 1-15, preferably 2-10% by weight (D) 0.05-2, preferably 0.1-2% by weight or more components ( If necessary, the above-mentioned component (B) may be added to A), (C) and (D) preferably in an amount of 1 to 5% by weight. When the component (B) is added, it has a property of improving moldability. Further, if necessary, the above-mentioned component (E), preferably 1 to 5
You may add wt%. When component (E) is added, it has the property of improving impact strength.

The compounding ratio of the (A) polycarbonate resin, (C) modified polyethylene resin and compound (D) in the polycarbonate / polyolefin resin composition is preferably (A) polycarbonate resin 9
9-85% by weight, (C) modified polyethylene resin 1-15
% Of the compound of (D) and 0.05 to 2% by weight, preferably (A) polycarbonate resin 98 to
90% by weight, (C) modified polyethylene resin 2 to 10% by weight and (D) compound 0.1 to 1% by weight, particularly preferably (A) polycarbonate resin 93 to.
97% by weight, (C) modified polyethylene resin 3 to 7% by weight
And the proportion of the compound (D) is 0.2 to 1.0% by weight. When the content ratio of the (A) polycarbonate resin exceeds 99% by weight, the content of the (C) modified polyethylene resin is relatively decreased, so that the sliding property is deteriorated. On the other hand, (C)
When the content of the modified polyethylene resin exceeds 15 parts by weight, the compatibility is slightly lowered and the heat resistance is also lowered.
When the content of the compound (D) is less than 0.05% by weight, the slidability is reduced, and when it exceeds 2% by weight, the reaction with PC causes a decrease in the molecular weight of PC in particular. The impact strength of the obtained composition is lowered.

The modified polyolefin as the component (C) is preferably modified polyethylene. The modified polyethylene resin used in the present invention includes high-density polyethylene, low-density polyethylene, linear low-density polyethylene, acid and acid anhydride,
Alternatively, any one may be used as long as it is a copolymer of an unsaturated monomer containing an epoxy group. Examples of the unsaturated monomer containing an acid include acrylic acid, methacrylic acid, maleic acid, cyclohexenedicarboxylic acid, and the like.
Examples of the acid anhydride group include maleic anhydride, itaconic anhydride, citraconic anhydride, cyclohexene dicarboxylic acid anhydride and the like. Further, as the unsaturated monomer containing an epoxy group, glycidyl methacrylate, butyl glycidyl malate, butyl glycidyl fumarate, propyl glycidyl malate, glycidyl acrylate,
N- [4- (2,3-epoxypropoxy) -3,5-
Dimethylbenzyl] acrylamide is preferred. These acids, acid anhydrides, epoxy group-containing unsaturated monomers,
Any method may be used as a method for copolymerizing high-density polyethylene, low-density polyethylene, linear low-density polyethylene, or the like. For example, using a twin-screw extruder, a Banbury mixer, a kneader-type kneader, or the like, a method of melt-kneading an unsaturated monomer and polyethylene in the presence or absence of a radical initiator, and a monomer constituting polyethylene. Examples thereof include a method of copolymerizing the above-mentioned unsaturated monomer in the coexistence.

Such acid, acid anhydride and epoxy groups are contained in an amount of 0.01% by weight to 1% based on the polyethylene resin.
It is preferably contained in the range of 0% by weight. If the content is less than this range, the slidability of the resulting composition will decrease, while if it is more than this range, problems such as coloring will occur. Further, such a polyethylene resin modified with an acid, an acid anhydride or an epoxy group is 1 to 15% by weight, preferably 2 to 10% by weight, more preferably 3 to 10% by weight based on the composition of the present invention. It is 7% by weight. If it is less than this range, the sliding property is deteriorated, while if it is more than this range, delamination is likely to occur.

The types of modified polyethylene include
Linear low density polyethylene, low density polyethylene and high density polyethylene are preferred, linear low density polyethylene and low density polyethylene are more preferred, and linear low density polyethylene is most preferred. Preferred polyethylene has a strong effect of improving the sliding property of the composition. The molecular weight of this modified polyethylene is not particularly limited,
Preferably, the melt index is MI = 0.1 to 20,
More preferably, MI = 0.2-10. If it is smaller than this range, the moldability is deteriorated, and if it is larger than this range, the slidability is deteriorated.

The molding material excellent in sliding properties, which is the object of the present invention, is prepared by blending the above-mentioned constituent units in a predetermined amount and melt-kneading the mixture.
Further, it can be obtained by melt-molding this composition. The reason why the molding material of the present invention has excellent sliding properties, mechanical strength and heat resistance is not clear, but the structural unit (D) reacts with the structural units (A) and (C). Therefore, it is considered that the compatibility between the structural unit (A) and the structural unit (C) was improved, and therefore the sliding characteristics and the mechanical strength were improved. For example, it can be produced by uniformly mixing the components with a Henschel mixer, a ribbon blender, a V-type blender, etc., and then kneading them with a single-screw or twin-screw extruder, a kneader-type kneader, a Banbury mixer, a Brabender Plasticorder, etc. . In some cases, a method may be adopted in which two of the constituents of the present invention are kneaded in advance and then the remaining ingredients are kneaded. A preferred method is a method in which the constituent component (C) and the constituent component (D) are kneaded in advance, and then the constituent component (A) is kneaded. By adopting this method, the impact strength is improved. It is considered that this is because the decrease in the molecular weight of the constituent component (A) due to the reaction between the constituent component (D) and the constituent component (A) can be suppressed.

The molding material of the present invention is obtained by melt-molding the above composition by a molding method generally used for thermoplastic resins. For example, injection molding, hollow molding, sheet molding,
Lamination molding, press molding and the like can be applied, but injection molding is preferable. Melting temperature 240-360 ° C, mold temperature 40-1
Perform at 30 ° C. In the molding material of the present invention, it is preferable that the average aspect ratio (major axis / minor axis) of the polyethylene particles dispersed from the surface of the molded article to a depth of 20 μm is 5 or less. When the average aspect ratio is 5 or more, the slidability decreases. It is considered that this is because the layered structure near the surface facilitates peeling and increases the amount of wear. Such a preferable polyethylene dispersion form is, for example, when the blending amount of the polycarbonate resin is 9
0% or more, the content of modified polyethylene is 10% or less, and the content of the compound of the structural unit (D) is 0.05.
Although it is achieved when the content is up to 2.0% by weight, it is not limited to this because the temperature, the injection speed, the cooling speed, etc. at the time of molding change.

Inorganic fillers such as glass fiber, carbon fiber, aramid fiber, talc, mica, calcium carbonate and the like may be added to the molding material of the present invention within a range that does not impair the effects of the present invention. In particular, it is preferable to add glass fiber, carbon fiber, aramid fiber or the like because improvement of bending rigidity and improvement of sliding characteristics are expected. Further, silicone oil, ultra-high molecular weight polyethylene powder, unmodified polyethylene, homopolypropylene, polyethylene-polypropylene copolymer, molybdenum compound and the like can be added. These additives are also preferable because they can be expected to improve the sliding characteristics. Further, general additives such as flame retardants, plasticizers, and antioxidants, which are added to thermoplastic resins, may be added in appropriate amounts. The molded article having excellent slidability according to the present invention can be used as parts for office automation equipment, home electric appliances, medical equipment and the like, and is particularly suitable for parts such as gears, cams and bearings.

[4] A molding material excellent in solvent resistance, which is the fourth object of the present invention, will be described below. The molding material excellent in solvent resistance of the present invention is a molding material obtained by melt-molding the resin composition described in [1] of the present invention, and has excellent heat resistance, mechanical properties and flame retardancy. A resin molding material having the above and excellent solvent resistance can be obtained at low cost. The resin composition used is not particularly limited, but in order to have a good balance of mechanical strength, heat resistance and solvent resistance, the following compositions are preferably used. (A) 99-85, preferably 98-90% by weight (C) 1-15, preferably 2-10% by weight (D) 0.05-2, preferably 0.1-2% by weight or more components ( If necessary, the above-mentioned component (B) may be added to A), (C) and (D) preferably in an amount of 1 to 5% by weight. When the component (B) is added, it has a property of improving moldability. Further, if necessary, the above-mentioned component (E), preferably 1 to 5
You may add wt%. When component (E) is added, it has the property of improving impact strength.

The modified polyolefin as component (C) is preferably maleic anhydride modified polypropylene, maleic anhydride modified linear low density polyethylene, maleic anhydride modified low density polyethylene, or maleic anhydride modified high density polyethylene. The reason is that it is relatively inexpensive and easily available.

Inorganic fillers such as glass fiber, carbon fiber, aramid fiber, talc, mica, calcium carbonate and the like can be added to the molding material of the present invention within a range not impairing the effects of the present invention. Also, homo polypropylene,
An unmodified polyolefin such as polyethylene-polypropylene block copolymer, polyethylene-polypropylene random copolymer, high-density polyethylene, low-density polyethylene, linear low-density polyethylene, ultrahigh-molecular-weight polyethylene, polymethylpentene may be added. Further, general additives such as flame retardants, plasticizers, and antioxidants, which are added to thermoplastic resins, may be added in appropriate amounts.

The molding material excellent in solvent resistance of the present invention is one in which polyolefin is formed into particles and microphase-dispersed in the matrix phase of polycarbonate in view of the balance of mechanical strength, heat resistance and solvent resistance. More preferably, the average diameter of the polyolefin particles dispersed in the matrix phase having a depth of 20 microns from the surface of the molding material is preferably 0.
It is preferably 1 μm to 3 μm and the average aspect ratio (major axis / minor axis) is 5 or less. The method for producing the resin composition is not particularly limited, but preferably the above [2-
The use of the method described in [6] is preferable because the impact strength is improved. The melt molding method is not particularly limited, but preferably,
Injection molding is performed at a melting temperature of 240 to 360 ° C and a mold temperature of 40 to 130 ° C. The molding material of the present invention having excellent solvent resistance can be used as parts for office automation equipment, home electric appliances, medical equipment and the like, and is particularly suitable for parts such as gears, cams and bearings.

[5] Next, the glass fiber reinforced resin composition which is the fifth object of the present invention will be explained. The glass fiber reinforced resin composition of the present invention comprises the polycarbonate / polyolefin resin composition of the present invention of [1] above,
(F) A glass fiber is contained.

(F) Glass Fiber The glass fiber used in the present invention is not particularly limited and is preferably chopped strand having a fiber length of about 1 to 10 mm, and is preferably made of inorganic alkali glass. This glass fiber may be surface-treated or may not be surface-treated. It is particularly preferable that the surface treatment is performed using a silane compound. Examples of the silane-based compound used for the surface treatment include vinylethoxysilane, vinyltrichlorosilane, vinyltris- (β-methoxyethoxysilane), γ-glycidoxypropyltrimethoxysilane, γ-aminopropyltriethoxysilane, and γ. -Methacryloxypropyltrimethoxysilane, N-β- (aminoethyl) -γ-aminopropyl-triethoxysilane and the like can be mentioned, with an aminosilane compound being particularly preferred. The surface treatment can usually be carried out by contacting the silane compound with the glass fiber, and it is preferable to carry out the contacting treatment using a mixed solvent of lower alcohol and water.

The content of the glass fiber in the composition of the present invention is 5 to 40% by weight based on 95 to 60% by weight of the polycarbonate / polyolefin resin composition. More preferably, it is 10 to 35% by weight, and if the glass fiber content is less than 5% by weight, the flexural rigidity is reduced to 40% by weight.
If it exceeds the range, the impact resistance is lowered and it becomes extremely brittle.

The glass fiber reinforced resin composition of the present invention can be produced by blending a predetermined amount of the above-mentioned polycarbonate / polyolefin resin composition and glass fiber and melt-kneading. For example, the above-mentioned (A) polycarbonate resin, (C) modified polyethylene resin and (D) compound represented by the formula HOOC-R-NH ₂ and glass fiber are mixed with a mixer such as a Henschel mixer, a ribbon blender or a V-type blender. After uniform mixing by means of a method such as melt-kneading with a single-screw or twin-screw extruder, a kneader-type kneading base, a Banbury mixer, a Pravenda Plasticorder, or the like. In some cases, it may be carried out by a method in which some of the constituent components of the composition of the present invention are melt-kneaded and then the remaining components are kneaded. Among them, a preferred method is to first knead the modified polyethylene resin (C) and the compound (D), and then knead the polycarbonate resin (A) and the glass fiber thereto, and this method is adopted. This improves the impact strength of the resulting composition. This is due to the reaction between the compound (D) and the polycarbonate resin (A),
It is considered that the decrease in the molecular weight of the polycarbonate resin can be suppressed.

The molded product of the present invention can be obtained by melt-molding the glass fiber reinforced resin composition. The method of melt molding is not particularly limited, and it can be performed according to a molding processing method generally applied to thermoplastic resins. For example, injection molding, hollow molding, sheet molding, laminated molding, press molding, etc. can be applied, and injection molding is preferable. Further, the reason why the molded article of the present invention has both excellent sliding characteristics, mechanical strength and heat resistance is not clear,
By reacting the compound (D) with the polycarbonate resin (A) and the modified polyethylene resin (C), (A)
It is considered that the compatibility between the polycarbonate resin and the (C) modified polyethylene resin was improved, and thus the sliding characteristics and the mechanical strength were improved.

Further, in the glass fiber reinforced resin composition of the present invention and the molded article obtained therefrom, a filler such as carbon fiber, aramid fiber, talc, mica, calcium carbonate or the like is added within a range not impairing the effects of the present invention. It can also be added. In particular, it is preferable to add carbon fiber, aramid fiber or the like because improvement of bending rigidity and improvement of sliding characteristics are expected. Further, silicone oil, ultra-high molecular weight polyethylene powder, unmodified polyethylene, homopolypropylene, polyethylene-polypropylene copolymer, molybdenum compound and the like can be added. These additives are also preferable because they can be expected to improve the sliding characteristics. Further, general additives such as flame retardants, plasticizers and antioxidants, which are added to thermoplastic resins, may be added in appropriate amounts.

[0071]

The present invention will be further described with reference to the following examples, but the present invention is not limited to these examples. The raw materials, equipment, and evaluation methods used in the examples are as follows.

Raw material (A) Polycarbonate (PC) Sumitomo Dow Caliber 200-20 (melt index, [MI], 20) Sumitomo Dow Caliber 200-4 (MI 4) (B) Polypropylene (PP) Sumitomo Chemical Noprene W101 (MI 8, homopolymer) (B ') polyethylene (PE) Linolex AM0710 (MI 0.
3, Linear low-density polyethylene) (C) Modified polyolefin Maleic anhydride modified polypropylene Mitsubishi Kasei AP
590P Epoxy modified polypropylene Tonen Kagaku C-
900X modified maleic anhydride-modified polyethylene Mitsui stone of Admer NF300 (D) HOOC-R- NH 2 11- amino undecanoic acid (manufactured by Aldrich) (E) a styrene-ethylene-propylene copolymer Shell Chemical Co. Kraton 1701X (F) Ethylene・ Propylene copolymer manufactured by Sumitomo Chemical
Nobren AH561

Melt-kneading Japan Steel Works twin-screw extruder (TEX30HSST
Type), 300 ° C., throughput 10 kg / hr.

Injection molding Yamashiro Seiki injection molding machine SAV-60-52 type,
The molding temperature was 260 ° C.

Characteristic Measurement (1) Flexural Modulus According to ASTM D-790,
It measured at 23 degreeC using the Shimadzu Corporation autograph. (2) Impact strength According to ASTM D-256,
It was measured with a notch. (3) Delamination of molded product Cellophane adhesive tape (Cellotape ^R CT-12 manufactured by Nichiban Co., Ltd.) on the surface of the molded product.
S) was applied and peeled off, and the case where the resin was clearly observed on the cellophane adhesive tape was evaluated as x, the case where the resin was observed only slightly was evaluated as Δ, and the case where it was not observed at all was evaluated as o. (4) Heat distortion temperature It was measured according to ASTM D-648. (5) Tensile strength Measured in accordance with ASTM D-638. (6) Bending strength The bending strength was measured according to ASTM D-790. (7) Observation of dispersion form After freezing the extruded strand in liquid nitrogen,
The strand was broken and the cross section was observed with a scanning electron microscope.

[1] The polycarbonate / polyolefin resin composition of the first object of the present invention will be described in detail with reference to Examples and Comparative Examples. Example 1 PC (Caliber 200 manufactured by Sumitomo Dow Co., Ltd.)
4) 800 g, epoxy-modified polypropylene 200 g,
After 48.20 g of 11-aminoundecanoic acid (0.1 mol% based on the polycarbonate) was premixed, it was fed to a twin-screw extruder (L / D = 42). The barrel temperature of the extruder was 300 ° C. The obtained resin composition was injection-molded (cylinder temperature 260 ° C., mold temperature 90 ° C.), and the molded product was tested. The results are shown in Table 1.

Example 2 The same operation as in Example 1 was carried out except that 200 g of maleic anhydride modified polypropylene was used instead of 200 g of epoxy modified polypropylene. The results are shown in Table 1.

Example 3 Instead of 200 g of epoxy-modified polypropylene, 10 parts of epoxy-modified polypropylene was used.
The same operation as in Example 1 was performed except that 0 g and 100 g of ethylene-propylene copolymer were used. The results are shown in Table 1.

Comparative Example 1 An ethylene propylene copolymer 20 was used instead of 200 g of epoxy modified polypropylene.
The same operation as in Example 1 was performed except that 0 g was used.
The results are shown in Table 1.

Comparative Example 2 The same operation as in Example 1 was carried out except that 11-aminoundecanoic acid was not used.
The results are shown in Table 1.

(Comparative Example 3) The same operation as in Example 1 was performed except that the barrel temperature was 260 ° C. The results are shown in Table 1.

[0082]

Example 4 P dried at 120 ° C. for 8 hours
C (Sumitomo Dow Caliber 200-4) 3.2 kg and maleic anhydride modified polypropylene 0.8 kg, 11
72.4 g of aminoundecanoic acid was added and mixed well with a Henschel mixer. The obtained mixture was melt-kneaded using a twin-screw extruder at a barrel temperature of 300 ° C., and the obtained pellets were injection-molded (cylinder temperature 2
(60 ° C., mold temperature: 90 ° C.), and a characteristic test was performed according to the above test method. The measurement results are shown in Table 2.

Example 5 Pellets were obtained in the same manner as in Example 4 except that epoxy-modified polypropylene was used instead of maleic anhydride-modified polypropylene, injection-molded, and then characteristic tests were conducted. Table 2 shows the results.

(Comparative Example 4) Pellets were obtained by the same method as in Example 4 except that 11-aminoundecanoic acid was not added, injection-molded, and then subjected to a characteristic test. Table 2 shows the results.

Example 6 P dried at 120 ° C. for 8 hours
C (Sumitomo Uda Caliber 200-4) 5.0 kg, 1
1-Aminoundecanoic acid (50.3 g) was added, and the mixture was melt-kneaded using a twin-screw extruder at 300 ° C. After 0.5 kg of the obtained kneaded product was dried at 120 ° C. for 8 hours, P
C (Sumitomo Dow Caliber 200-20) 3.5 kg, polypropylene 0.5 kg, and epoxy modified polypropylene 0.5 kg were thoroughly mixed with a Henschel mixer,
It was melt-kneaded at 260 ° C. using a twin-screw extruder. The characteristic test of the obtained composition was conducted. Table 2 shows the results.

(Comparative Example 5) A composition was obtained in the same manner as in Example 6 except that 11-aminoundecanoic acid was not added, and a characteristic test was conducted. Table 2 shows the results.

Comparative Example 6 A composition was obtained by carrying out the same operation as in Example 6 except that stearic acid was used instead of 11-aminoundecanoic acid, and a characteristic test was conducted. Table 2 shows the results.

Comparative Example 7 A composition was obtained by performing the same operation as in Example 6 except that homopolypropylene was used instead of the epoxy-modified polypropylene. The results of the characteristic test are shown in Table 2.

Example 7 PC (Sumitomo Dow Caliber 2
00-4) A composition was obtained in the same manner as in Example 4, except that 2.5 kg and 2.5 kg of maleic anhydride-modified polypropylene were used. Table 2 shows the result of the characteristic test.

Comparative Example 8 A composition was obtained by carrying out the same method as in Example 7 except that 11-aminoundecanoic acid was not added. The results of the characteristic test are shown in Table 2.

Example 8 P dried at 120 ° C. for 8 hours
72.4 g of 11-aminoundecanoic acid was added to 3.6 kg of C (Caliber 200-4 manufactured by Sumitomo Dow) and 0.4 kg of maleic anhydride-modified polyethylene, and they were sufficiently mixed with a Henschel mixer. Using a twin-screw extruder, 300
After melt-kneading under the condition of ° C, the obtained pellets were injection-molded (cylinder temperature 260 ° C, mold temperature 90 ° C) and a characteristic test was conducted. The measurement results are shown in Table 2.

Comparative Example 9 A composition was obtained by the same procedure as in Example 8 except that 11-aminoundecanoic acid was not added. The results of the characteristic measurements are shown in Table 2.

(Example 9) P dried at 120 ° C. for 8 hours
C (3.1 kg by Sumitomo Dow Caliber 200-4) and 0.7 kg of maleic anhydride-modified polypropylene and 0.2 kg of styrene / ethylene / propylene copolymer
72.4 g of 1-aminoundecanoic acid was added and thoroughly mixed with a Henschel mixer. With a twin screw extruder,
After melt-kneading under the condition of 300 ° C, the obtained pellets are injection molded (cylinder temperature 260 ° C, mold temperature 90 ° C)
Then, the characteristic test was performed. The measurement results are shown in Table 2.

(Comparative Example 10) In Example 9, 11-
A composition was obtained by performing the same operation except that aminoundecanoic acid was not added. Table 2 shows the result of the characteristic test.

[0096]

[Table 1]

As is clear from Tables 1 and 2, the compositions of the present invention have both excellent properties and excellent surface properties. On the other hand, it can be seen that the compositions shown in Comparative Examples have particularly poor surface properties. In order to further explain the effect of the present invention, the results of SEM observation of the cross section of the composition are shown in FIGS. 1 is a comparative composition consisting of PC (70 wt%) / polypropylene (30 wt%), FIG. 2 is P
A composition consisting of C (70% by weight), maleic anhydride modified polypropylene (30% by weight) and 11-aminoundecanoic acid (1.8% by weight), and FIG. 3 shows PC (70% by weight), epoxy modified Polypropylene (30% by weight), 1
For a composition consisting of 1-aminoundecanoic acid (1.8% by weight). The compositions of FIGS. 2 and 3, which are the compositions of the present invention, have a significantly smaller dispersed particle size (dispersed particles = polypropylene resin) than in FIG. 1, and the compatibility between PC and polypropylene resin is improved. I understand.

[2] Next, the present invention will be further described with reference to examples regarding the method for producing a polycarbonate polyolefin resin composition of the second object of the present invention, but the present invention is limited to these examples. Not a thing. In the example,
The raw materials and the evaluation method used are as follows.

Raw Material (B) Polyethylene (PE) Linear Linear Low Density Polyethylene (LLDPE) Nippon Petrochemical Co., Ltd. Linirex AM0710 (MI
0.3) (C) Modified Polyolefin Maleic Anhydride Modified Linear Low Density Polyethylene Mitsui Petrochemical Admer NB550 Maleic Anhydride Modified Ethylene / Propylene Block Copolymer Tonen Kagaku C-800X For other raw materials, use those already described. I was there.

Melt-kneading A twin-screw extruder (TEX30HSST type) manufactured by Japan Steel Works was used at a throughput of 10 kg / hr.

Injection molding Using an injection molding machine SAV-60-52 manufactured by Yamashiro Seiki,
The molding temperature was 260 ° C.

The characteristic measurement conditions have already been described.

Example 10 4 kg of maleic anhydride-modified polypropylene (AP590P manufactured by Mitsubishi Kasei) and 40.2 g of 11-aminoundecanoic acid were premixed with a Henschel mixer, and then twin-screw extruder (L / L) was used at a barrel temperature of 260 ° C. It was melt-kneaded at D = 42). The obtained pellets were vacuum dried at 80 ° C. for 16 hours, then a portion thereof was purified with hot xylene and acetone, hot-pressed into a film, and then subjected to IR spectrum. As a result, the maleic anhydride-derived peak (1784 cm ^-1 ) disappeared, and
A peak (1710 cm ^-1 ) derived from the carboxyl group of 11-aminoundecanoic acid was observed. From this, it was confirmed that 11-aminoundecanoic acid was chemically bonded to the maleic anhydride-modified polypropylene. This one
1.2 kg of 1-aminoundecanoic acid-modified maleic anhydride-modified polypropylene and polycarbonate previously dried at 120 ° C. for 8 hours (Sumitomo Dow Caliber 200-
4, MI = 4) 1.8 kg was sufficiently premixed with a Henschel mixer (PC 70 wt%, modified polypropylene 30 wt%) and melt-kneaded with a twin-screw extruder at a barrel temperature of 300 ° C. The strand obtained by extrusion molding is made into a thin film using a microtome, and after dyeing with RuO ₄ ,
It was observed with a transmission electron microscope, and the state is shown in the photograph of FIG. Further, the obtained resin composition was injection-molded (cylinder temperature 260 ° C., mold temperature 90 ° C.) to obtain a molded product, and the mechanical strength, heat resistance and the like were measured and shown in Table 3.

(Example 11) Epoxy-modified polypropylene (Tonen Kagaku, C-900X modified) was used in place of maleic anhydride-modified polypropylene, and the production of 11-aminoundecanoic acid-modified epoxy-modified polypropylene was confirmed and confirmed. The same operation as in Example 10 was performed except that 1.2 kg was used. The results are shown in Table 3.

Example 12 A maleic anhydride-modified polyethylene-polypropylene block copolymer (C-8, Tonen Kagaku) was used instead of the maleic anhydride-modified polypropylene.
The same operation as in Example 10 was performed, except that 00X) was used. The results are shown in Table 3.

Example 13 The same operation as in Example 10 was carried out except that maleic anhydride-modified linear low density polyethylene (Mitsui Petrochemical Co., Ltd., Admer NB550) was used in place of the maleic anhydride-modified polypropylene. The results are shown in Table 3.

Comparative Example 11 In Example 10, 11
-A resin composition was obtained by performing the same operation except that 1.2 kg of maleic anhydride modified polypropylene was used for 1.8 kg of polycarbonate instead of aminoundecanoic acid modified maleic anhydride modified polypropylene. The state of the dispersed particles of the strand is shown in the photograph of FIG. 5, and the mechanical properties and heat resistance of the injection molded product are shown in Table 3.

Comparative Example 12 In Example 11, 11
-A resin composition was obtained by performing the same operation except that aminoundecanoic acid was not added. Table 3 shows the mechanical properties and heat resistance of the injection-molded products.

(Comparative Example 13) In Example 12, 11
-A resin composition was obtained by performing the same operation except that aminoundecanoic acid was not added. Table 3 shows the mechanical properties and heat resistance of the injection-molded products.

(Comparative Example 14) In Example 13, 11
-A resin composition was obtained by performing the same operation except that aminoundecanoic acid was not added. Table 3 shows the mechanical properties and heat resistance of the injection-molded products.

Example 14 In Example 10, 11
-Aminoundecanoic acid modified polypropylene 0.15k
g, and the same operation was performed except that 2.85 kg of polycarbonate was used. The results of physical property measurement are shown in Table 4.

Reference Example 1 Maleic anhydride-modified polypropylene 0.15 kg, polycarbonate 2.85 kg,
After premixing 1.51 g of 11-aminoundecanoic acid with a Henschel mixer, at a barrel temperature of 300 ° C.,
It was melt-kneaded with a twin-screw extruder. The physical properties after injection molding are shown in Table 4.

Example 15 In Example 10, 11
-Aminoundecanoic acid modified polypropylene 0.30k
g, and the same operation was performed except that 2.70 kg of polycarbonate was used. The results of physical property measurement are shown in Table 4.

Example 16 In Example 10, 11
-Aminoundecanoic acid modified polypropylene 0.60k
g, the same operation was performed except that 2.40 kg of polycarbonate was used. The results of physical property measurement are shown in Table 4.

Example 17 In Example 13, 11
-Aminoundecanoic acid modified linear low density polyethylene
The same operation was performed except that 09 kg and polycarbonate 2.91 kg were used. The results of physical property measurement are shown in Table 4.

(Embodiment 18) In Embodiment 13, 11
-Aminoundecanoic acid modified linear low density polyethylene
The same operation was performed except that 15 kg and 2.85 kg of polycarbonate were used. The results of physical property measurement are shown in Table 4.

(Example 19) In Example 13, 11
-Aminoundecanoic acid modified linear low density polyethylene
The same operation was performed except that 21 kg and 2.79 kg of polycarbonate were used. The results of physical property measurement are shown in Table 4.

Example 20 In Example 13, 11
-Aminoundecanoic acid modified linear low density polyethylene
The same operation was performed except that 30 kg and 2.70 kg of polycarbonate were used. The results of physical property measurement are shown in Table 4.

Example 21 In Example 16, 11
-Aminoundecanoic acid modified polypropylene 0.3
The same operation was performed except that kg, 1.8 kg of polycarbonate, and 0.3 kg of polypropylene (Noprene W101 manufactured by Sumitomo Chemical Co., Ltd.) were used. Table 4 shows the results of physical property measurements.
Shown in

Example 22 In Example 13, 11
-Aminoundecanoic acid modified linear low density polyethylene
The same kneading was performed using 6 kg, and 0.6 kg of unmodified linear low-density polyethylene (Linerex AM0710 manufactured by Nippon Petrochemical) together with 1.8 kg of polycarbonate. Table 4 shows the results of measurement of physical properties.

(Example 23) The same operation as in Example 10 was carried out except that the polycarbonate having MI of 20 (Sumitomo Dow Caliber 200-20) was used. The results are shown in Table 4.

(Comparative Example 15) In Example 167, 1
A similar operation was carried out except that 1-aminoundecanoic acid was not added to obtain a composition. The results of physical property measurement are shown in Table 4.

Comparative Example 16 In Example 20, 11
-A similar operation was performed, except that aminoundecanoic acid was not added, to obtain a composition. The results of physical property measurement are shown in Table 4.

[0124]

[0125]

As is clear from Tables 3 and 4, the PC / polyolefin compositions obtained by the production method of the present invention have excellent compatibility, excellent mechanical strength, and particularly high impact strength. And has heat resistance as well. On the other hand, it can be seen that the compositions shown in Comparative Examples have poor surface properties.

In order to further explain the effect of the present invention, the extruded strand is thinned with a microtome to form Ru.
Photographs 1 and 2 show the states when stained with O ₄ and observed with a transmission electron microscope. The PC / polyolefin composition obtained by the method of the present invention (the photograph of FIG. 4 (Example 10)) has fine dispersed particles, whereas it is simply blended without using the production method of the present invention. It can be seen that the dispersed particles are large (the photograph of FIG. 5 (Comparative Example 11)). That is,
It shows that the compatibility was improved by using the production method of the present invention.

[3] The resin composition having excellent slidability and the molded article, which is the third object of the present invention, will be described below with reference to Examples, but the present invention is not limited to these Examples.
In this example, the following abbreviations are used. PC: Polycarbonate LDPE: Low density polyethylene LLDPE: Linear low density polyethylene HDPE: High density polyethylene PTFE: Polytetrafluoroethylene

Raw material (C) modified polyethylene resin used Admer NB550 manufactured by Mitsui Petrochemical Co., Ltd. (maleic anhydride modified LLDPE melt index 0.9, modification amount 0.
14% ^*) ) Mitsui Petrochemical's Admer NF510 (maleic anhydride modified LLDPE melt index 1.8, modification amount 0.
07% ^*) ) Mitsui Petrochemical's Admer NF505 (maleic anhydride modified LLDPE melt index 3.5, modification amount 0.
09% ^*) ) Mitsui Petrochemical's Admer NF550 (maleic anhydride modified LLDPE melt index 6.5, modification amount 0.
26% ^*) ) Mitsui Petrochemical Admer HB550 (maleic anhydride modified HDPE melt index 0.2, modification amount 0.0
7% ^*) ) Mitsui Petrochemical's Admer LF300 (maleic anhydride modified LDPE melt index 1.2, modification amount 0.0
9% ^*) ) *) The amount of modification was quantified by IR spectrum. (B) Polyethylene resin Nippon Petrochemical Linilex AM0710 (LLDP
E, melt index 0.3) Nippon Petrochemical Sutafuren E703 (HDPE, melt index 0.3) Nippon Petrochemical Rekusuron M14 (LDPE, melt index 0.3) (D) HOOC-R -NH 2 11- aminoundecanoic acid , 6-aminocaproic acid, p
-Aminobenzoic acid (both made by Ardrich)

Melt-kneading A twin-screw extruder (TEX30HSST type) manufactured by Japan Steel Works was used at 260 ° C. or 300 ° C. The treatment amount was 10 kg / hr.

Injection molding Using an injection molding machine SAV-60-52 manufactured by Yamashiro Seiki, for bending and tensile test pieces, the cylinder temperature was 260 ° C, the injection pressure was 50 kg / cm ² , and the injection speed was 50.
%, The mold temperature is 100 ° C., and the ring-shaped test piece for sliding test has a cylinder temperature of 290 ° C. and an injection pressure of 70 kg.
/ Cm ² , injection speed 50%, mold temperature 100 ° C.

Characteristic Measurement (1) Sliding Test The injection-molded ring-shaped molded product was subjected to a friction / wear test with the same mating material (steel (S-45C)).
(Ring-on-ring method) The test condition is a linear velocity of 30 m / m.
in, load 2.6 kg / cm ² , test time 72 hours. The torque during the sliding test was detected by the load cell to calculate the dynamic friction coefficient, and the specific wear amount was measured from the weight change before and after the sliding test. Further, for some of the samples, a laser displacement meter was attached to a sliding test device, and the linear wear amount of the test piece was measured over time. (2) Observation of dispersed form A cross section near the sliding surface of the ring-shaped test piece was made into a thin film having a thickness of about 900 A with a microtome, stained with RuO ₄ , and then observed with a transmission electron microscope. The average aspect ratio was obtained by measuring the aspect ratio of 100 particles arbitrarily selected from this transmission electron micrograph and taking the average. The other characteristic measurement conditions have already been described.

Example 24 Maleic anhydride-modified linear low-density polyethylene (Admer NB550) 5 kg and 11
-Aminoundecanoic acid (50.5 g) was sufficiently mixed with a Henschel mixer, and then melt-kneaded at 260 ° C using a twin-screw extruder. The obtained kneaded product was vacuum dried at 80 ° C. for 12 hours, and then 0.3 kg of this kneaded product and 9.7 kg of a polycarbonate resin (MI = 4) were mixed with a Henschel mixer and melted at 300 ° C. with a twin-screw extruder. Kneaded The resulting kneaded product was dried at 120 ° C. for 8 hours, then injection-molded,
Physical properties were measured. The results are shown in Table 5. In addition, a transmission electron micrograph (× 6) of a cross section near the sliding surface of the ring-shaped test piece
000) is shown in FIG.

(Comparative Example 17) In Example 24, a maleic anhydride-modified linear low-density polyethylene (Admer NB
The same operation was performed except that linear low-density polyethylene (linirex AM0710) was used instead of 550) and 11-aminoundecanoic acid was not added. The results are shown in Table 5, and a transmission electron micrograph (× 6000) is shown in FIG. 6 (B).

Example 25 Maleic anhydride-modified linear low-density polyethylene (Admer NB550) 5 kg and 11
-Aminoundecanoic acid (50.5 g) was sufficiently mixed with a Henschel mixer, and then melt-kneaded at 260 ° C using a twin-screw extruder. The resulting kneaded product was vacuum dried at 80 ° C. for 12 hours, and then 0.5 kg of this kneaded product and 9.5 kg of a polycarbonate resin (MI = 4) were mixed with a Henschel mixer and melted at 300 ° C. with a twin-screw extruder. Kneaded The resulting kneaded product was dried at 120 ° C. for 8 hours, then injection-molded,
Physical properties were measured. The results are shown in Table 5.

Example 26 Maleic anhydride-modified linear low-density polyethylene (Admer NB550) 5 kg and 11
-Aminoundecanoic acid (50.5 g) was sufficiently mixed with a Henschel mixer, and then melt-kneaded at 260 ° C using a twin-screw extruder. The obtained kneaded product was vacuum dried at 80 ° C. for 12 hours, and then 1.0 kg of this kneaded product and 9.0 kg of a polycarbonate resin (MI = 4) were mixed with a Henschel mixer and melted at 300 ° C. with a twin-screw extruder. Kneaded The resulting kneaded product was dried at 120 ° C. for 8 hours, then injection-molded,
Physical properties were measured. The results are shown in Table 5.

Example 27 Maleic anhydride-modified linear low-density polyethylene (Admer NF510) 5 kg and 11
-Aminoundecanoic acid (50.5 g) was sufficiently mixed with a Henschel mixer, and then melt-kneaded at 260 ° C using a twin-screw extruder. The resulting kneaded product was vacuum dried at 80 ° C. for 12 hours, and then 0.5 kg of this kneaded product and 9.5 kg of a polycarbonate resin (MI = 4) were mixed with a Henschel mixer and melted at 300 ° C. with a twin-screw extruder. Kneaded The resulting kneaded product was dried at 120 ° C. for 8 hours, then injection-molded,
Physical properties were measured. The results are shown in Table 5.

Example 28 Maleic anhydride-modified linear low-density polyethylene (Admer NF505) 5 kg and 11
-Aminoundecanoic acid (50.5 g) was sufficiently mixed with a Henschel mixer, and then melt-kneaded at 260 ° C using a twin-screw extruder. The resulting kneaded product was vacuum dried at 80 ° C. for 12 hours, and then 0.5 kg of this kneaded product and 9.5 kg of a polycarbonate resin (MI = 4) were mixed with a Henschel mixer and melted at 300 ° C. with a twin-screw extruder. Kneaded The resulting kneaded product was dried at 120 ° C. for 8 hours, then injection-molded,
Physical properties were measured. The results are shown in Table 5.

Example 29 Maleic anhydride-modified linear low-density polyethylene (Admer NF550) 5 kg and 11
-Aminoundecanoic acid (50.5 g) was sufficiently mixed with a Henschel mixer, and then melt-kneaded at 260 ° C using a twin-screw extruder. The resulting kneaded product was vacuum dried at 80 ° C. for 12 hours, and then 0.5 kg of this kneaded product and 9.5 kg of a polycarbonate resin (MI = 4) were mixed with a Henschel mixer and melted at 300 ° C. with a twin-screw extruder. Kneaded The resulting kneaded product was dried at 120 ° C. for 8 hours, then injection-molded,
Physical properties were measured. The results are shown in Table 5.

Example 30 Maleic anhydride-modified linear low-density polyethylene (Admer NB550) 5 kg and 11
-Aminoundecanoic acid (50.5 g) was sufficiently mixed with a Henschel mixer, and then melt-kneaded at 260 ° C using a twin-screw extruder. The resulting kneaded product was vacuum dried at 80 ° C. for 12 hours, and then 0.5 kg of this kneaded product and 9.5 kg of a polycarbonate resin (MI = 20) were mixed with a Henschel mixer and melted at 300 ° C. with a twin-screw extruder. Kneaded The obtained kneaded product was dried at 120 ° C. for 8 hours, then injection-molded, and the physical properties were measured. The results are shown in Table 5.

Comparative Example 18 In Example 26, maleic anhydride-modified linear low density polyethylene (Admer NB
The same operation was performed except that linear low-density polyethylene (linirex AM0710) was used instead of 550) and 11-aminoundecanoic acid was not added. The results are shown in Table 5.

(Example 31) 5 kg of maleic anhydride-modified high-density polyethylene (Admer HB500) and 50.5 g of 11-aminoundecanoic acid were thoroughly mixed in a Henschel mixer, and then at 260 ° C using a twin-screw extruder. Melt kneaded. The resulting kneaded product was vacuum dried at 80 ° C. for 12 hours, and then 0.5 kg of this kneaded product and 9.5 kg of a polycarbonate resin (MI = 4) were mixed with a Henschel mixer and melted at 300 ° C. with a twin-screw extruder. Kneaded The obtained kneaded product was dried at 120 ° C. for 8 hours, then injection-molded, and the physical properties were measured. The results are shown in Table 5.

(Comparative Example 19) In Example 31, a maleic anhydride-modified high-density polyethylene (Admer HB50) was used.
0) instead of high density polyethylene (Stafflen E70
The same operation was performed except that 3) was used and 11-aminoundecanoic acid was not added. The results are shown in Table 5.

(Example 32) 5 kg of maleic anhydride-modified low-density polyethylene (Admer LF300) and 50.5 g of 11-aminoundecanoic acid were thoroughly mixed in a Henschel mixer, and then at 260 ° C using a twin-screw extruder. Melt kneaded. The resulting kneaded product was vacuum dried at 80 ° C. for 12 hours, and then 0.5 kg of this kneaded product and 9.5 kg of a polycarbonate resin (MI = 4) were mixed with a Henschel mixer and melted at 300 ° C. with a twin-screw extruder. Kneaded The obtained kneaded product was dried at 120 ° C. for 8 hours, then injection-molded, and the physical properties were measured. The results are shown in Table 5.

(Comparative Example 20) In Example 32, maleic anhydride-modified low-density polyethylene (Admer LF30
0) instead of low density polyethylene (Lexron M1
The same operation was performed except that 4) was used and 11-aminoundecanoic acid was not added. The results are shown in Table 5.

Example 33 In Example 25, 11
-A similar operation was performed except that 6-aminocaproic acid was used instead of aminoundecanoic acid. The results are shown in Table 5.

Example 34 In Example 25, 11
The same operation was performed except that p-aminobenzoic acid was used instead of -aminoundecanoic acid. The results are shown in Table 5.

(Example 35) 0.5 kg of maleic anhydride-modified linear low-density polyethylene (Admer NB550), 5.05 g of 11-aminoundecanoic acid and 9.5 kg of polycarbonate resin (MI = 4) were sufficiently added using a Henschel mixer. After mixing, they were melt-kneaded at 300 ° C. using a twin-screw extruder. The resulting kneaded product was vacuum dried at 80 ° C. for 12 hours, injection-molded, and the physical properties were measured. The results are shown in Table 5.

As is clear from Table 5, all of the compositions of the present invention have excellent mechanical strength, heat resistance and sliding characteristics. On the other hand, it can be seen that the compositions shown in Comparative Examples are particularly inferior in slidability. In addition, the compositions of Examples are conventional PC / PT listed in Table 5 as a reference.
It can be seen that it has characteristics equal to or higher than the characteristic value of the FE-based sliding material.

FIG. 7 shows changes with time in the linear wear amount of the compositions of Examples, the compositions of Comparative Examples and the conventional PC / PTFE type sliding material. It can be seen that the compositions of the examples have excellent wear characteristics.

Photographs (A) and (B) in FIG. 6 are transmission electron micrographs comparing the dispersed states near the surfaces of the molded products (rings) of Example 24 and Comparative Example 17, respectively. The compositions of the comparative examples show clearly different dispersion morphologies,
In the compositions of the Examples, polyethylene dispersed particles are observed to be dispersed in a substantially spherical shape, whereas polyethylene particles elongated in a layered manner are observed.

[0152]

[Table 2]

[4] Hereinafter, the resin composition having excellent solvent resistance, which is the fourth object of the present invention, will be described with reference to Examples, but the present invention is not limited to these Examples.

Melt-kneading A twin-screw extruder (TEX30HSST type) manufactured by Japan Steel Works was used at 260 ° C. and 300 ° C. The treatment amount was 10 kg / hr.

Injection Molding Using an injection molding machine SAV-60-52 manufactured by Yamashiro Seiki, a cylinder temperature of 260 ° C. and an injection pressure of 50 kg / cm.
^2. Molded at an injection speed of 50% and a mold temperature of 100 ° C.

Characteristic Measurement (1) Organic Solvent Resistance Test A bending test piece was immersed in gasoline, and the increase in weight of the test piece and the visual change in appearance were measured over time. The other characteristic measurement conditions have already been described.

Example 36 Maleic anhydride-modified linear low-density polyethylene (Admer NB550) 5 kg and 11
-Aminoundecanoic acid (50.5 g) was sufficiently mixed with a Henschel mixer, and then melt-kneaded at 260 ° C using a twin-screw extruder. After vacuum-drying the obtained kneaded product for 12 hours at 80 ° C., 0.5 kg of this kneaded product and 9.5 kg of a polycarbonate resin (MI = 4) were mixed with a Henschel mixer and melted at 300 ° C. with a twin-screw extruder. Kneaded The obtained kneaded product was dried at 120 ° C. for 8 hours, then injection-molded, and the physical properties were measured. The results are shown in Tables 6 and 7 and FIG.

(Comparative Example 21) In Example 36, a maleic anhydride-modified linear low-density polyethylene (Admer NB
The same operation was performed except that linear low-density polyethylene (linirex AM0710) was used instead of 550) and 11-aminoundecanoic acid was not added. The results are shown in Tables 6 and 7 and FIG.

Example 37 5 kg of maleic anhydride-modified homopolypropylene (AP590p) and 50.5 g of 11-aminoundecanoic acid were thoroughly mixed with a Henschel mixer, and then melt-kneaded at 260 ° C. using a twin-screw extruder. did. The obtained kneaded product was vacuum dried at 80 ° C. for 12 hours, and then 0.5 kg of this kneaded product and the polycarbonate resin (M
I = 4) 9.5 kg was mixed with a Henschel mixer, and 2
It was melt-kneaded at 300 ° C. with a shaft extruder. The obtained kneaded product was dried at 120 ° C. for 8 hours, then injection-molded, and the physical properties were measured. The results are shown in Tables 6 and 7 and FIG.

(Comparative Example 22) The same operation as in Example 37 was conducted except that homopolypropylene (Nobrene W101) was used in place of the maleic anhydride-modified homopolypropylene (AP590P), and 11-aminoundecanoic acid was not added. I went. The results are shown in Tables 6 and 7 and FIG.
Shown in

As is clear from Tables 6 and 7, it is understood that the compositions of the present invention all have excellent mechanical strength, heat resistance and organic solvent resistance. On the other hand, it can be seen that the composition of Comparative Example and the polycarbonate are particularly inferior in organic solvent resistance. Further, it can be seen that the compositions of Examples have organic solvent resistance and mechanical strength that are equal to or higher than those of the conventional PC / PET-based compositions given as references.

FIG. 8 compares the weight increase in gasoline of the composition of the example, the composition of the comparative example and the conventional PC / PET type composition. It can be seen that the compositions of the examples have a suppressed increase in weight and are excellent in organic solvent resistance as compared with the compositions of PC and the comparative example.

10 to 12 show examples (36, 37),
3 is a photograph (6.5 times) of the surface of a test piece after a solvent resistance test of Comparative Examples (21, 22) and polycarbonate [(a): Polycarbonate (b): PC / PET].
(C): Comparative example 21 (d): Example 36 (e): Comparative example 22 (f): Example 37]. In the composition of Comparative Example and polycarbonate, fine cracks (cracks) were observed on the surface, whereas in the composition of Example, it was not observed, and almost no change in appearance was observed in the organic solvent. .

According to the present invention, it is possible to provide a polycarbonate / polyolefin resin composition having excellent mechanical properties, heat resistance and organic solvent resistance. This allows conventional PC
In place of the polyester composition, it is possible to provide a polycarbonate-based component that is cheaper and has excellent organic solvent resistance. The composition and molded article of the present invention are useful as parts of automobiles, OA equipment, home appliances, etc. by utilizing these characteristics.

[0165]

[Table 3]

[0166]

[Table 4]

[5] Hereinafter, the glass fiber reinforced resin composition and the molded product of the fifth object of the present invention will be described by way of examples, but the present invention is not limited to these examples.
The abbreviations and raw materials used in the examples are as shown below, and the melt kneading, injection molding, and measurement of various physical properties were performed according to the following methods.

The raw materials used have already been mentioned.

A melt-kneading twin-screw extruder (manufactured by Japan Steel Works, TEX30HSST type) was used at 260 ° C. or 300 ° C. The treatment amount was 10 kg / hr.

Injection molding Using an injection molding machine (Yamashiro Seiki, model SAV-60-52), for bending and tensile test pieces, the cylinder temperature was 260 ° C., the injection pressure was 50 kg / cm ² , and the injection speed was 50.
%, The mold temperature is 100 ° C., and the ring-shaped test piece for the sliding test has a cylinder temperature of 290 ° C. and an injection pressure of 70 k.
Molding was performed at g / cm ² , injection speed of 50% and mold temperature of 100 ° C.

The characteristic measurement conditions have already been described.

(Example 38) Maleic anhydride-modified linear low-density polyethylene (Admer NB550) 5 kg and 11
-Aminoundecanoic acid (50.5 g) was sufficiently mixed with a Henschel mixer, and then melt-kneaded at 260 ° C using a twin-screw extruder. The obtained kneaded product was vacuum dried at 80 ° C. for 12 hours. Then, 0.3 kg of this kneaded product and 9.7 kg of a polycarbonate resin (MI: 4 g / 10 min) were mixed by a Henschel mixer, and melt-kneaded at 300 ° C. using a twin-screw extruder. The obtained kneaded product was dried at 120 ° C. for 8 hours to obtain a polycarbonate resin composition. Next, 3.5 kg of this polycarbonate resin composition and glass fiber (fiber length 3 mm, fiber diameter 9 mm, aminosilane treatment)
A glass fiber reinforced polycarbonate resin composition in which 1.5 kg was thoroughly mixed with a Henschel mixer and kneaded at 260 ° C. using a twin-screw extruder, and 30 parts by weight of glass fiber was mixed with 70 parts by weight of the polycarbonate resin composition. Manufactured. This glass fiber reinforced polycarbonate resin composition was subjected to injection molding to prepare a test piece. This test piece was subjected to measurement of bending strength / elastic modulus, impact strength and heat deformation temperature, and sliding test. Table 8 shows the results.

COMPARATIVE EXAMPLE 23 A linear low density polyethylene (linirex AM0710) was used in place of the maleic anhydride-modified linear low density polyethylene (Admer NB550), and 11-aminoundecanoic acid was not added. A composition containing glass fibers was produced in the same manner as in Example 38. The obtained composition was subjected to injection molding to prepare a test piece, which was then subjected to measurement of bending strength / elastic modulus, impact strength and heat distortion temperature, and sliding test. Table 8 shows the results.

Example 39 Maleic anhydride-modified linear low-density polyethylene (Admer NB550) 5 kg and 11
-Aminoundecanoic acid (50.5 g) was sufficiently mixed with a Henschel mixer, and then melt-kneaded at 260 ° C using a twin-screw extruder. The obtained kneaded product was vacuum dried at 80 ° C. for 12 hours. Thereafter, 0.5 kg of this kneaded product and 9.5 kg of a polycarbonate resin (MI: 4 g / 10 min) were mixed with a Henschel mixer and melt-kneaded at 300 ° C. using a twin-screw extruder to obtain a polycarbonate resin composition. It was The obtained polycarbonate resin composition was dried at 120 ° C. for 8 hours. Next, this polycarbonate resin composition 3.5
kg and glass fiber (fiber length 3 mm, fiber diameter 9 mm, aminosilane treatment) 1.5 kg are sufficiently mixed with a Henschel mixer and kneaded at 260 ° C. using a twin-screw extruder,
A glass fiber-reinforced polycarbonate resin composition was prepared by mixing 30 parts by weight of glass fiber with 70 parts by weight of the polycarbonate resin composition. This glass fiber reinforced polycarbonate resin composition was subjected to injection molding to prepare a test piece. This test piece was subjected to measurement of bending strength / elastic modulus, impact strength and heat deformation temperature, and sliding test. Table 8 shows the results.

Example 40 Maleic anhydride-modified linear low-density polyethylene (Admer NB550) 5 kg and 11
-Aminoundecanoic acid (50.5 g) was sufficiently mixed with a Henschel mixer, and then melt-kneaded at 260 ° C using a twin-screw extruder. The obtained kneaded product was vacuum dried at 80 ° C. for 12 hours. Then, 1.0 kg of this kneaded product and 9.0 kg of polycarbonate resin (MI: 4 g / 10 min) were mixed with a Henschel mixer, and melt-kneaded at 300 ° C. using a twin-screw extruder to obtain a polycarbonate resin composition. . The obtained polycarbonate resin composition was dried at 120 ° C. for 8 hours. Next, this polycarbonate resin composition 3.5k
g and 1.5 kg of glass fiber (fiber length 3 mm, fiber diameter 9 μm, aminosilane treatment) were thoroughly mixed with a Henschel mixer, and kneaded at 260 ° C. using a twin-screw extruder to obtain 70 parts by weight of a polycarbonate resin composition. On the other hand, a glass fiber reinforced polycarbonate resin composition containing 30 parts by weight of glass fiber was produced. This glass fiber reinforced polycarbonate resin composition was subjected to injection molding to prepare a test piece. This test piece was subjected to measurement of bending strength / elastic modulus, impact strength and heat deformation temperature, and sliding test. Table 8 shows the results.

Example 41 Maleic anhydride-modified linear low-density polyethylene (Admer NF510) 5 kg and 11
-Aminoundecanoic acid (50.5 g) was sufficiently mixed with a Henschel mixer, and then melt-kneaded at 260 ° C using a twin-screw extruder. The obtained kneaded product was vacuum dried at 80 ° C. for 12 hours. Then, 0.5 kg of this kneaded product and 9.5 kg of a polycarbonate resin (MI: 4 g / 10 min) were mixed with a Henschel mixer, and melt-kneaded at 300 ° C. using a twin-screw extruder to obtain a polycarbonate resin composition. . The obtained polycarbonate resin composition was dried at 120 ° C. for 8 hours. Next, this polycarbonate resin composition 3.5k
g and 1.5 kg of glass fiber (fiber length 3 mm, fiber diameter 9 μm, aminosilane treatment) were thoroughly mixed with a Henschel mixer, and kneaded at 260 ° C. using a twin-screw extruder to obtain 70 parts by weight of a polycarbonate resin composition. On the other hand, a glass fiber reinforced polycarbonate resin composition containing 30 parts by weight of glass fiber was produced. This glass fiber reinforced polycarbonate resin composition was subjected to injection molding to prepare a test piece. This test piece was subjected to measurement of bending strength / elastic modulus, impact strength and heat deformation temperature, and sliding test. Table 8 shows the results.

Example 42 Maleic anhydride-modified linear low-density polyethylene (Admer NF505) 5 kg and 11
-Aminoundecanoic acid (50.5 g) was sufficiently mixed with a Henschel mixer, and then melt-kneaded at 260 ° C using a twin-screw extruder. The obtained kneaded product was vacuum dried at 80 ° C. for 12 hours. Thereafter, 0.5 kg of this kneaded product and 9.5 kg of a polycarbonate resin (MI: 4 g / 10 min) were mixed by a Henschel mixer and melt-kneaded at 300 ° C. using a twin-screw extruder to obtain a polycarbonate resin composition. . The obtained polycarbonate resin composition was dried at 120 ° C. for 8 hours. Next, this polycarbonate resin composition 3.5k
g and 1.5 kg of glass fiber (fiber length 3 mm, fiber diameter 9 μm, aminosilane treatment) were thoroughly mixed with a Henschel mixer, and kneaded with a twin-screw extruder at 260 ° C. to 70 parts by weight of the polycarbonate resin composition. A glass fiber reinforced polycarbonate resin composition containing 30 parts by weight of glass fiber was produced. This glass fiber reinforced polycarbonate resin composition was subjected to injection molding to prepare a test piece.
This test piece was subjected to measurement of bending strength / elastic modulus, impact strength and heat deformation temperature, and sliding test. The results are shown in Table 8
Shown in

Example 43 Maleic anhydride-modified linear low-density polyethylene (Admer NF550) 5 kg and 11
-Aminoundecanoic acid (50.5 g) was sufficiently mixed with a Henschel mixer, and then melt-kneaded at 260 ° C using a twin-screw extruder. The obtained kneaded product was vacuum dried at 80 ° C. for 12 hours. Thereafter, 0.5 kg of this kneaded product and 9.5 kg of a polycarbonate resin (MI: 4 g / 10 min) were mixed by a Henschel mixer and melt-kneaded at 300 ° C. using a twin-screw extruder to obtain a polycarbonate resin composition. . The obtained polycarbonate resin composition was dried at 120 ° C. for 8 hours. Next, this polycarbonate resin composition 3.5k
g and 1.5 kg of glass fiber (fiber length 3 mm, fiber diameter 9 μm, aminosilane treatment) were thoroughly mixed with a Henschel mixer, and kneaded at 260 ° C. using a twin-screw extruder to obtain 70 parts by weight of a polycarbonate resin composition. On the other hand, a glass fiber reinforced polycarbonate resin composition containing 30 parts by weight of glass fiber was produced. This glass fiber reinforced polycarbonate resin composition was subjected to injection molding to prepare a test piece. This test piece was subjected to measurement of bending strength / elastic modulus, impact strength and heat deformation temperature, and sliding test. Table 8 shows the results.

Example 44 Maleic anhydride-modified linear low-density polyethylene (Admer NB550) 5 kg and 11
-Aminoundecanoic acid (50.5 g) was sufficiently mixed with a Henschel mixer, and then melt-kneaded at 260 ° C using a twin-screw extruder. The obtained kneaded product was vacuum dried at 80 ° C. for 12 hours. Thereafter, 0.5 kg of this kneaded product and 9.5 kg of a polycarbonate resin (MI: 20 g / 10 min) were mixed with a Henschel mixer and melt-kneaded at 300 ° C. using a twin-screw extruder to obtain a polycarbonate resin composition. . The obtained polycarbonate resin composition was dried at 120 ° C. for 8 hours. Next, this polycarbonate resin composition 3.5
kg and glass fiber (fiber length 3 mm, fiber diameter 9 μm, aminosilane treatment) 1.5 kg were thoroughly mixed with a Henschel mixer and kneaded at 260 ° C. with a twin-screw extruder to 70 parts by weight of the polycarbonate resin composition. A glass fiber reinforced polycarbonate resin composition containing 30 parts by weight of glass fiber was produced. This glass fiber reinforced polycarbonate resin composition was subjected to injection molding to prepare a test piece. This test piece was subjected to measurement of bending strength / elastic modulus, impact strength and heat deformation temperature, and sliding test. Table 8 shows the results.

COMPARATIVE EXAMPLE 24 A linear low-density polyethylene (linirex AM0710) was used in place of the maleic anhydride-modified linear low-density polyethylene (Admer NB550), and 11-aminoundecanoic acid was not added. A composition containing glass fibers was produced in the same manner as in Example 40. The obtained composition was subjected to injection molding to prepare a test piece, which was then subjected to measurement of bending strength / elastic modulus, impact strength and heat distortion temperature, and sliding test. Table 8 shows the results.

Example 45 5 kg of maleic anhydride-modified high-density polyethylene (Admer HB500) and 50.5 g of 11-aminoundecanoic acid were thoroughly mixed with a Henschel mixer, and then melted at 260 ° C. using a twin-screw extruder. Kneaded The obtained kneaded product was vacuum dried at 80 ° C. for 12 hours. Then, 0.5 kg of this kneaded product and 9.5 kg of a polycarbonate resin (MI = 4) were mixed with a Henschel mixer and melt-kneaded at 300 ° C. using a twin-screw extruder to obtain a polycarbonate resin composition. The obtained polycarbonate resin composition was dried at 120 ° C. for 8 hours. Next, 3.5 kg of this polycarbonate resin composition and glass fiber (fiber length 3 mm, fiber diameter 9 μm, aminosilane treatment)
Mix well with 1.5 kg with a Henschel mixer, and
The mixture was kneaded at 260 ° C. using a shaft extruder to produce a glass fiber reinforced polycarbonate resin composition in which 30 parts by weight of glass fiber was mixed with 70 parts by weight of the polycarbonate resin composition. This glass fiber reinforced polycarbonate resin composition was subjected to injection molding to prepare a test piece. This test piece was subjected to measurement of bending strength / elastic modulus, impact strength and heat deformation temperature, and sliding test. Table 8 shows the results.

Comparative Example 25 Example 45 was repeated except that high-density polyethylene (Staffrene E703) was used instead of maleic anhydride-modified high-density polyethylene (Admer HB500), and 11-aminoundecanoic acid was not added.
A composition containing glass fibers was produced in the same manner as in. The obtained composition was subjected to injection molding to prepare a test piece, which was then subjected to measurement of bending strength / elastic modulus, impact strength and heat distortion temperature, and sliding test. Table 8 shows the results.

(Example 46) 5 kg of maleic anhydride-modified low-density polyethylene (Admer LF300) and 50.5 g of 11-aminoundecanoic acid were thoroughly mixed with a Henschel mixer, and then melted at 260 ° C using a twin-screw extruder. Kneaded The obtained kneaded product was vacuum dried at 80 ° C. for 12 hours. Then, 0.5 kg of this kneaded product and 9.5 kg of a polycarbonate resin (MI = 4) were mixed with a Henschel mixer and melt-kneaded at 300 ° C. using a twin-screw extruder to obtain a polycarbonate resin composition. The obtained polycarbonate resin composition was dried at 120 ° C. for 8 hours. Next, 3.5 kg of this polycarbonate resin composition and glass fiber (fiber length 3 mm, fiber diameter 9 μm, aminosilane treatment)
Mix well with 1.5 kg with a Henschel mixer, and
The mixture was kneaded at 260 ° C. using a shaft extruder to produce a glass fiber reinforced polycarbonate resin composition in which 30 parts by weight of glass fiber was mixed with 70 parts by weight of the polycarbonate resin composition. This glass fiber reinforced polycarbonate resin composition was subjected to injection molding to prepare a test piece. This test piece was subjected to measurement of bending strength / elastic modulus, impact strength and heat deformation temperature, and sliding test. Table 8 shows the results.

Comparative Example 26 Same as Example 46 except that low density polyethylene (Lexron M14) was used in place of maleic anhydride modified low density polyethylene (Admer LF300) and 11-aminoundecanoic acid was not added. Then, a composition containing glass fiber was produced. The obtained composition was subjected to injection molding to prepare a test piece, which was then subjected to measurement of bending strength / elastic modulus, impact strength and heat distortion temperature, and sliding test. Table 8 shows the results.

Example 47 A glass fiber reinforced polycarbonate resin composition was produced in the same manner as in Example 40 except that 6-aminocaproic acid was used instead of 11-aminoundecanoic acid. The composition was subjected to injection molding to prepare a test piece. This test piece was subjected to measurement of bending strength / elastic modulus, impact strength and heat deformation temperature, and sliding test. Table 8 shows the results.

(Example 48) A glass fiber reinforced polycarbonate resin composition was produced in the same manner as in Example 40 except that p-aminobenzoic acid was used instead of 11-aminoundecanoic acid. The polycarbonate resin composition was subjected to injection molding to prepare a test piece. This test piece was subjected to measurement of bending strength / elastic modulus, impact strength and heat deformation temperature, and sliding test. Table 8 shows the results.

Example 49 0.5 kg of maleic anhydride-modified linear low-density polyethylene (Admer NB550),
0.05 kg of 11-aminoundecanoic acid, 4.5 kg of polycarbonate (MI: 4 g / 10 min) and glass fiber (fiber length 3 mm, fiber diameter 9 μm, aminosilane treatment)
2.14 kg was thoroughly mixed with a Henschel mixer, and then melt-kneaded at 300 ° C. using a twin-screw extruder, and 30 parts by weight of glass fiber was added to 70 parts by weight of the polycarbonate resin composition. A resin composition was produced. The glass fiber reinforced polycarbonate resin composition obtained was dried at 120 ° C. for 8 hours and then subjected to injection molding to prepare a test piece. This test piece was subjected to measurement of bending strength / elastic modulus, impact strength and heat deformation temperature, and sliding test. Table 8 shows the results.

(Example 50) 5 kg and 11 of maleic anhydride-modified linear low-density polyethylene (Admer NB550)
-Aminoundecanoic acid (50.5 g) was sufficiently mixed with a Henschel mixer, and then melt-kneaded at 260 ° C using a twin-screw extruder. The obtained kneaded product was vacuum dried at 80 ° C. for 12 hours. Thereafter, 0.5 kg of this kneaded product and 9.5 kg of a polycarbonate resin (MI: 4 g / 10 min) were mixed by a Henschel mixer and melt-kneaded at 300 ° C. using a twin-screw extruder to obtain a polycarbonate resin composition. . The obtained polycarbonate resin composition was dried at 120 ° C. for 8 hours. Next, this polycarbonate resin composition 4.5k
g and 0.5 kg of glass fiber (fiber length 3 mm, fiber diameter 9 μm, aminosilane treatment) were thoroughly mixed with a Henschel mixer and kneaded at 260 ° C. with a twin-screw extruder to 90 parts by weight of the polycarbonate resin composition. 1 glass fiber
A glass fiber reinforced polycarbonate resin composition containing 0 parts by weight was produced. The glass fiber reinforced polycarbonate resin composition obtained was dried at 120 ° C. for 8 hours and then subjected to injection molding to prepare a test piece. This test piece was subjected to measurement of bending strength / elastic modulus, impact strength and heat deformation temperature, and sliding test. Table 8 shows the results.

Comparative Example 27 Example 50 was repeated, except that linear low-density polyethylene (linirex AM0710) was used in place of the maleic anhydride-modified low-density polyethylene (Admer NB550), and 11-aminoundecanoic acid was not added. A composition containing glass fiber was produced in the same manner as in. The obtained composition was subjected to injection molding to prepare a test piece, which was then subjected to measurement of bending strength / elastic modulus, impact strength and heat distortion temperature, and sliding test. Table 8 shows the results.

(Comparative Example 28) A glass fiber reinforced polycarbonate resin composition was produced in the same manner as in Example 38 except that the ratio of the polycarbonate resin composition was 97 parts by weight and the glass fiber was 3 parts by weight. The obtained composition was subjected to injection molding to prepare a test piece, which was then subjected to measurement of bending strength / elastic modulus, impact strength and heat distortion temperature, and sliding test. Table 8 shows the results.

Comparative Example 29 A glass fiber reinforced polycarbonate resin composition was produced in the same manner as in Example 1 except that the ratio of the polycarbonate resin composition was 50 parts by weight and the glass fiber was 50 parts by weight. The obtained composition was subjected to injection molding to prepare a test piece, which was then subjected to measurement of bending strength / elastic modulus, impact strength and heat distortion temperature, and sliding test.
Table 8 shows the results.

[0192]

[Table 5]

As is clear from Table 8, the compositions of the present invention represented by the examples all have excellent mechanical strength, heat resistance and sliding properties. On the other hand, it can be seen that the compositions of Comparative Examples 23 to 27 are particularly inferior in slidability. In addition, the compositions of the examples are conventional polycarbonate / fluorine resin (P
It can be seen that it has characteristics equal to or higher than the characteristic value of the TFE) -based sliding material.

[0194]

INDUSTRIAL APPLICABILITY According to the present invention, a PC-polyolefin resin composition excellent in mechanical properties, organic solvent resistance, heat resistance and surface properties can be obtained by using easily available raw materials. Making use of these characteristics, is useful as a material for interior / exterior parts of automobiles, electric / electronic devices, etc., housings, and mechanical parts (gear, cam, etc.). Also,
The composition of the present invention having excellent solvent resistance can also be applied to gasoline tanks of automobiles.

According to the production method of the present invention, a PC / polyolefin resin composition excellent in mechanical strength such as impact resistance, heat resistance, and compatibility can be easily produced by a melt kneader. Utilizing these characteristics, it is useful as a material for interior / exterior parts of automobiles, electric / electronic devices, etc., housings, and mechanical parts (gear, cam, etc.). Further, those having excellent solvent resistance can be applied to gasoline tanks of automobiles.

The glass fiber reinforced polycarbonate resin composition of the present invention has excellent mechanical properties, heat resistance and sliding properties. As a result, it is possible to provide a polycarbonate-based sliding part that is cheaper, replaces the conventional PC / PTFE-based sliding material, and also solves the problem of the generation of toxic gas during the combustion of PTFE, and is excellent in environmental safety. it can. The composition and molded product of the present invention are useful as machine parts (gears, cams) and the like in the fields of OA equipment, automobiles, home appliances, etc. by making use of these characteristics.

[Brief description of drawings]

Figure 1: PC (70% by weight) and polypropylene (30
(% By weight) is a drawing-substituting photograph showing the particle structure of the constituent components of the composition consisting of (% by weight).

FIG. 2 Composition of a composition obtained by adding 11-aminoundecanoic acid (1.8% by weight to the mixture) to a mixture of PC (70% by weight) and maleic anhydride-modified polypropylene (30% by weight). It is a drawing substitute photograph which shows the particle structure of a component.

FIG. 3 shows components of a composition obtained by adding 11-aminoundecanoic acid (1.8% by weight to the mixture) to a mixture of PC (70% by weight) and epoxy-modified polypropylene (30% by weight). It is a drawing substitute photograph which shows a particle structure.

FIG. 4 is a drawing-substituting photograph showing a particle structure of components of a composition (Example 10) obtained by kneading PC (70% by weight) and polypropylene modified with 11-aminoundecanoic acid (30% by weight). (Magnification: 3000 times).

FIG. 5 is a drawing showing a particle structure of constituent components of a composition (Comparative Example 11) obtained by kneading PC (70% by weight) and polypropylene (30% by weight) not modified with 11-aminoundecanoic acid. It is a substitute photograph (magnification: 3000 times).

6 (A) and 6 (B) are transmission electron micrographs of cross sections near the surface of the molded products (rings) of Example 24 and Comparative Example 17, respectively, and are drawings substitutes showing the particle structure of the molded products. It is a photograph.

FIG. 7 is a graph showing changes over time in the amount of wire wear.

FIG. 8 is a graph showing a weight increase with gasoline immersion time.

FIG. 9 is a graph showing a weight increase with gasoline immersion time.

10 (a) and (b) are surface photographs (× 6.5) of a molded product after immersion in gasoline, respectively [(a):
Fig. 3 is a drawing-substituting photograph showing the particle structure of polycarbonate (b): PC / PET], a molded product.

11 (c) and (d) are surface photographs (× 6.5) of a molded product after immersion in gasoline, respectively ([c]:
Comparative Example 21 (d): Example 36] is a drawing-substitute photograph showing the particle structure of a molded product.

12 (e) and (f) are surface photographs (× 6.5) of a molded product after immersion in gasoline, respectively [(e):
Comparative Example 22 (f): Example 37] is a drawing-substituting photograph showing the particle structure of a molded product.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification number Reference number within the agency FI Technical display location C08L 25/08 LEC 69/00 LPP (72) Inventor Sachiichi Michi Kawasaki, Chuo-ku, Chiba-shi, Chiba Prefecture Town No. 1 Kawasaki Steel Co., Ltd., Technical Research Laboratory (72) Inventor Shigeru Takano No. 1 Kawasaki-cho, Chuo-ku, Chiba City, Chiba Prefecture Kawasaki Steel Co., Ltd. Technical Research Center (72) Inventor Eiichi Sumita Chiba, Chiba Kawasaki-cho, Chuo-ku, Kawasaki Steel Co., Ltd. Technical Research Center

Claims (11)

[Claims] 1. (A) Polycarbonate resin (C) Polyolefin resin modified with at least one functional group selected from the group consisting of epoxy groups, carboxyl groups, and acid anhydride groups, and (D) HOOC-R. A compound represented by —NH ₂ (wherein R represents an alkene group having 5 or more carbon atoms, an alkylidene group, an oligomethylene group, or a phenylene group or a naphthylene group which may be substituted with an alkyl group). A polycarbonate / polyolefin resin composition having improved compatibility obtained by melt-kneading. 2. A polycarbonate resin (A), a polyolefin resin (B), and a polyolefin resin (C) modified with at least one functional group selected from the group consisting of an epoxy group, a carboxyl group, and an acid anhydride group. (D) HOOC-R-NH 2 compound represented by (wherein, R is the formula, 5 or more alkene groups carbons, an alkylidene group, an oligo methylene group or an alkyl phenylene group or naphthylene which may be substituted with a group, A group / group) is melt-kneaded to obtain a polycarbonate / polyolefin resin composition having improved compatibility. (A) Polycarbonate resin (B) Polyolefin resin (C) Polyolefin resin modified with at least one functional group selected from the group consisting of epoxy groups, carboxyl groups, and acid anhydride groups ( D) a compound represented by HOOC-R-NH ₂ (wherein R represents an alkene group having 5 or more carbon atoms, an alkylidene group, an oligomethylene group, or a phenylene group or a naphthylene group which may be substituted with an alkyl group) And (E) a styrene-based copolymer resin, which is melt-kneaded to obtain a polycarbonate / polyolefin-based resin composition having improved compatibility. 4. The resin composition according to claim 1 or 2, wherein the proportion of each component is (A) 40 to 99% by weight (B) 60 to 0% by weight (C) 0.5 to 60% by weight. % (D) 0.05 to 5% by weight of a polycarbonate / polyolefin resin composition having improved compatibility. 5. The resin composition according to claim 3, wherein the proportion of each component is (A) 40 to 99% by weight (B) 60 to 0% by weight (C) 0.5 to 60% by weight ( D) 0.05 to 5 wt% (E) 0.1 to 30 wt% A polycarbonate / polyolefin resin composition having improved compatibility. 6. The maleic anhydride-modified linear low-density polyethylene, the maleic anhydride-modified low-density polyethylene, or the maleic anhydride-modified high-density polyethylene is used as the component (C). The resin composition according to. 7. A glass fiber reinforced resin containing 95 to 60% by weight of the polycarbonate / polyolefin resin composition according to claim 1 and 5 to 40% by weight of glass fiber. Composition. 8. A molded product obtained by melt-molding the resin composition according to claim 1. 9. The molding according to claim 8, wherein the polyolefin particles dispersed from the surface of the molded product to a depth of 20 microns have an average aspect ratio of 5 or less (major axis / minor axis) and excellent slidability. body. 10. The resin according to claim 1, wherein the component (D) and the component (C) according to claim 1 are melt-kneaded, and then the component (A) is added and melt-kneaded. A method for producing a composition. 11. A component (D) and a component (C) according to claim 1 are melt-kneaded, and then (A) a polycarbonate resin,
The method for producing a resin composition according to claim 2 or 3, wherein the polyolefin resin (B) and, if necessary, the styrene copolymer resin (E) are added in any order or simultaneously and melt-kneaded.