WO2015159980A1 - グラフト共重合体及び熱可塑性樹脂組成物 - Google Patents
グラフト共重合体及び熱可塑性樹脂組成物 Download PDFInfo
- Publication number
- WO2015159980A1 WO2015159980A1 PCT/JP2015/061887 JP2015061887W WO2015159980A1 WO 2015159980 A1 WO2015159980 A1 WO 2015159980A1 JP 2015061887 W JP2015061887 W JP 2015061887W WO 2015159980 A1 WO2015159980 A1 WO 2015159980A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- graft copolymer
- parts
- thermoplastic resin
- ethylene
- mass
- Prior art date
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F255/00—Macromolecular compounds obtained by polymerising monomers on to polymers of hydrocarbons as defined in group C08F10/00
- C08F255/02—Macromolecular compounds obtained by polymerising monomers on to polymers of hydrocarbons as defined in group C08F10/00 on to polymers of olefins having two or three carbon atoms
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F255/00—Macromolecular compounds obtained by polymerising monomers on to polymers of hydrocarbons as defined in group C08F10/00
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F255/00—Macromolecular compounds obtained by polymerising monomers on to polymers of hydrocarbons as defined in group C08F10/00
- C08F255/08—Macromolecular compounds obtained by polymerising monomers on to polymers of hydrocarbons as defined in group C08F10/00 on to polymers of olefins having four or more carbon atoms
- C08F255/10—Macromolecular compounds obtained by polymerising monomers on to polymers of hydrocarbons as defined in group C08F10/00 on to polymers of olefins having four or more carbon atoms on to butene polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L25/00—Compositions of, homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Compositions of derivatives of such polymers
- C08L25/02—Homopolymers or copolymers of hydrocarbons
- C08L25/04—Homopolymers or copolymers of styrene
- C08L25/08—Copolymers of styrene
- C08L25/12—Copolymers of styrene with unsaturated nitriles
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- C08L51/06—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to homopolymers or copolymers of aliphatic hydrocarbons containing only one carbon-to-carbon double bond
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L69/00—Compositions of polycarbonates; Compositions of derivatives of polycarbonates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L51/00—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- C08L51/04—Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers grafted on to rubbers
Definitions
- the present invention relates to a graft copolymer and a thermoplastic resin composition containing the graft copolymer.
- Thermoplastic resins such as styrene resins are used as materials for car interior parts such as car air conditioners and car stereo switches.
- a squeak noise is generated from the mated part of the molded product or the part that is in contact with (rubbed with) a part made of different or similar materials It is well known that parts wear out when used for a long time.
- Patent Document 1 proposes a thermoplastic resin composition containing polyethylene having a specific molecular weight distribution.
- Patent Document 2 proposes a thermoplastic resin composition in which a copolymer composed of polyethylene and a vinyl monomer having a specific density or molecular weight is blended.
- JP 2000-038513 A Japanese Patent Laid-Open No. 04-020550
- the present invention is a resin modifier that is less likely to cause delamination even when blended with a thermoplastic resin, and that can improve wear resistance, sliding characteristics, and squeaking noise, and a thermoplastic compounded with the resin modifier.
- the object is to provide a resin composition.
- the ethylene-based polymer (a) has a density of 0.900 g / cm 3 or more 0.966 g / cm less than 3, the number average molecular weight of 10,000 to 50,000, A graft copolymer having a molecular weight distribution of 5 to 15 and a molecular weight of 10,000 or less is 5.5% or more.
- the graft copolymer according to one embodiment of the present invention is less likely to cause delamination even when blended with a thermoplastic resin, and functions as a resin modifier that can improve wear resistance, sliding characteristics, and squeaking noise. can do. Moreover, the graft copolymer which concerns on 1 aspect of this invention can acquire said effect, fully maintaining the general physical property of a thermoplastic resin.
- Another embodiment of the present invention is an aromatic vinyl monomer (b) and optionally an aromatic vinyl monomer (b) in the presence of 30 to 80 parts by mass of the ethylene polymer (a). And 20 to 70 parts by mass of a total of other vinyl monomers (c) copolymerizable with (a), (a), (b) and (c) being 100 parts by mass) a resulting graft copolymer (a), the ethylene-based polymer (a) has a density less than 0.900 g / cm 3 or more 0.966 g / cm 3, the activation energy of flow from 40 to It is a graft copolymer characterized by being 120 kJ / mol.
- the graft copolymer according to another aspect of the present invention is a resin modifier that is less likely to cause delamination even when blended with a thermoplastic resin, and can improve wear resistance, sliding characteristics, and squeaking noise. Can function as. Moreover, the graft copolymer which concerns on another one aspect
- a thermoplastic resin used for a vehicle interior part also requires heat resistance, but the graft copolymer according to another aspect of the present invention is molded such heat resistance is required. It can mix
- the graft copolymer according to the present invention preferably has a graft ratio of 30% or more.
- the ethylene polymer (a) is an ethylene- ⁇ -olefin copolymer containing ethylene and an ⁇ -olefin having 3 to 20 carbon atoms as a copolymerization component. Is preferred.
- the ethylene-based polymer (a) preferably has a number average converted particle diameter [(long side + short side) / 2] of 500 to 4500 ⁇ m.
- thermoplastic resin composition comprising the graft copolymer (A) according to the present invention and a thermoplastic resin (B) other than the graft copolymer (A),
- the graft copolymer (A) is contained in an amount of 1 to 50 parts by mass with respect to 100 parts by mass in total of the graft copolymer (A) and the thermoplastic resin (B), and the thermoplastic resin ( A thermoplastic resin composition characterized in that the content of B) is 50 to 99 parts by mass.
- thermoplastic resin (B) may be a styrene resin.
- thermoplastic resin (B) may be a polycarbonate resin.
- thermoplastic resin (B) may be a styrene resin or a polycarbonate resin.
- a resin modifier that is less likely to cause delamination even when blended with a thermoplastic resin, and that can improve wear resistance, sliding characteristics, and squeaking noise while maintaining general physical properties. can do.
- thermoplastic resin composition containing the resin modifier of the present invention the general physical properties of the thermoplastic resin are sufficiently maintained, delamination is unlikely to occur, and the wear resistance and sliding characteristics are good. Further, it is possible to provide a molded product with improved stagnation sound.
- the resin modifier can improve wear resistance, sliding characteristics, and squeaking noise while maintaining sufficient heat resistance. Can be provided.
- thermoplastic resin composition in which the resin modifier of the present invention is blended, delamination is unlikely to occur while the heat resistance of the thermoplastic resin is sufficiently maintained, and the wear resistance and sliding characteristics are good. Further, it is possible to provide a molded product with improved stagnation sound.
- the graft copolymer of the present embodiment comprises an aromatic vinyl monomer (b) and an optional aromatic vinyl monomer (optionally blended) in the presence of the ethylene polymer (a).
- Examples of the ethylene polymer (a) include ethylene homopolymers, ethylene- ⁇ -olefin copolymers, ethylene-vinyl acetate copolymers, ethylene-acrylic acid copolymers, ethylene-acrylic acid ester copolymers, ethylene -A monomer unit based on ethylene such as a methacrylic acid copolymer, an ethylene-methacrylic acid ester copolymer, an ethylene-cyclic olefin copolymer, etc. (usually, all the monomer units constituting the polymer are 100 units).
- As the mol% a polymer having a monomer unit content based on ethylene of 50 mol% or more can be used.
- Examples of the ethylene homopolymer include polyethylene.
- Examples of the ⁇ -olefin of the ethylene- ⁇ -olefin copolymer include propylene, 1-butene, 1-pentene, 1-hexene, 1-heptene, 1-octene, 1-nonene, 1-decene and 1-dodecene. , 4-methyl-1-pentene, 4-methyl-1-hexene and the like, and ⁇ -olefins having 3 to 20 carbon atoms. These can be used alone or in combination of two or more.
- Examples of the ethylene- ⁇ -olefin copolymer include an ethylene-propylene copolymer, an ethylene-1-butene copolymer, an ethylene-1-hexene copolymer, an ethylene-1-octene copolymer, and an ethylene-1-butene. -1-hexene copolymer and the like.
- the ethylene polymer (a) is preferably an ethylene- ⁇ -olefin copolymer containing ethylene and an ⁇ -olefin having 3 to 20 carbon atoms as a copolymerization component.
- the size of the ethylene polymer (a) is not limited, but the number average converted particle diameter [(long side + short side) / 2] is preferably 500 to 4500 ⁇ m, more preferably 700 to 3500 ⁇ m. It is preferably 1000 to 3000 ⁇ m, more preferably 1000 to 2700 ⁇ m.
- the ethylene polymer (a) can be used in the form of pellets.
- the larger the surface area of the pellet the easier the monomer such as aromatic vinyl monomer is graft polymerized.
- the number average converted particle size [(long side + short side) / 2] of the pellet is preferably within the above range.
- ethylene polymer (a) has a density of 0.900 g / cm 3 or more 0.966 g / cm less than 3 It is preferable that the number average molecular weight is 10,000 to 50,000, the molecular weight distribution is 5 to 15, and the ratio of the molecular weight is 10,000 or less is 5.5% or more.
- the density is measured according to JIS K7112.
- the number average molecular weight, the molecular weight distribution, and the ratio of the molecular weight of 10,000 or less of the ethylene polymer (a) can be determined using gel permeation chromatography (GPC). Specifically, a weight average molecular weight and a number average molecular weight converted from a calibration curve using standard polystyrene are obtained, and a molecular weight distribution (weight average molecular weight / number average molecular weight) is calculated. As shown in FIG. 1, the ratio of the molecular weight of 10,000 or less draws the integral value curve of the slice area from the molecular weight distribution curve consisting of the slice molecular weight and the slice area, and the integral value when the slice molecular weight is 10,000 (%) It is.
- GPC gel permeation chromatography
- the ethylene polymer (a) has a density of 0.900 g / cm 3 or more and 0.966 g / cm. It is preferably less than 3 and the flow activation energy is 40 to 120 kJ / mol.
- the flow activation energy of the ethylene polymer (a) is preferably 50 to 110 kJ / mol, and more preferably 60 to 100 kJ / mol.
- the activation energy of the flow of the ethylene-based polymer (a) can be adjusted by, for example, a known technique described in Japanese Patent No. 3344015 and Japanese Patent No. 4543706.
- the activation energy of the flow of the ethylene polymer (a) was measured at 130 ° C. and 150 ° C. under the following measurement conditions using a viscoelasticity measuring device (melt viscoelasticity measuring device ARES manufactured by TA Instruments Japan). C., 170.degree. C. and 190.degree. C. were measured for melt complex viscosity-angular frequency curve. Then, from the obtained melt complex viscosity-angular frequency curve, calculation software TA Orchestrator, manufactured by TA Instruments Japan, Inc. was used. The activation energy (Ea) can be determined using Software v7.0.8.23.
- the density of the ethylene-based polymer (a) is preferably less than 0.905 g / cm 3 or more 0.951 g / cm 3, more preferably less than 0.910 g / cm 3 or more 0.941g / cm 3, 0.915g / It is particularly preferable that it is cm 3 or more and less than 0.931 g / cm 3 .
- the melt flow rate of the ethylene polymer (a) is not particularly limited, but is preferably 0.3 to 5 (g / 10 min) from the viewpoint of improving the sliding characteristics and the squeaking noise in a well-balanced manner.
- the melt flow rate here refers to a value measured under conditions of a temperature of 190 ° C. and a load of 21.2 N in accordance with JIS K7210.
- aromatic vinyl monomer (b) examples include styrene, ⁇ -methylstyrene, paramethylstyrene, bromostyrene and the like. These can be used alone or in combination of two or more. Of these, styrene and ⁇ -methylstyrene are preferred.
- Examples of the other vinyl monomers (c) copolymerizable with the aromatic vinyl monomer (b) include vinyl cyanide monomers such as acrylonitrile, methacrylonitrile, ethacrylonitrile, and fumaronitrile. , Methyl (meth) acrylate, ethyl (meth) acrylate, propyl (meth) acrylate, butyl (meth) acrylate, 2-ethylhexyl acrylate, phenyl (meth) acrylate, 4-t-butylphenyl (meth) acrylate, bromophenyl ( (Meth) acrylate, dibromophenyl (meth) acrylate, 2,4,6-tribromophenyl (meth) acrylate, monochlorophenyl (meth) acrylate, dichlorophenyl (meth) acrylate, trichlorophenyl (meth) acrylate, etc. )acrylic Este
- the graft copolymer (A) of this embodiment comprises an aromatic vinyl monomer (b) and, if necessary, an aromatic vinyl monomer in the presence of 30 to 80 parts by mass of an ethylene polymer (a). 20 to 70 parts by mass in total of other vinyl monomers (c) copolymerizable with the monomer (b) (however, the total of (a), (b) and (c) is 100 parts by mass) It can be obtained by graft polymerization.
- the ethylene-based polymer (a) is preferably 35 to 75 parts by mass, and more preferably 40 to 70 parts by mass.
- the aromatic vinyl monomer (b) and, if necessary, other vinyl monomers that can be copolymerized with the aromatic vinyl monomer (b).
- the aromatic vinyl monomer (b) is preferably graft-polymerized at a ratio of 65 to 85 parts by mass, and at a ratio of 70 to 80 parts by mass. More preferably, graft polymerization is performed.
- the graft ratio of the graft copolymer (A) is not particularly limited, but from the viewpoint of suppressing delamination of the thermoplastic resin composition, the graft ratio is preferably 30% or more, and preferably 40% or more. More preferred.
- the method for producing the graft copolymer (A) of the present embodiment is not particularly limited and can be obtained by emulsion polymerization, suspension polymerization, bulk polymerization, solution polymerization, or a combination thereof. It is preferable to use a legal method.
- thermoplastic resin composition according to the present invention will be described.
- thermoplastic resin composition of the present embodiment includes the graft copolymer (A) of the present embodiment and a thermoplastic resin (B) other than the graft copolymer (A).
- thermoplastic resin (B) is not particularly limited.
- styrene resin acrylic resin such as polymethyl methacrylate resin
- polycarbonate resin polyester resin such as polybutylene terephthalate resin and polyethylene terephthalate resin
- polyamide Biodegradable resins such as polylactic acid resins
- Engineering plastics such as (modified) polyphenylene ether resins, polyoxymethylene resins, polysulfone resins, polyarylate resins, polyphenylene resins, thermoplastic polyurethane resins, etc. And the like.
- a thermoplastic resin (B) contains a styrene resin and / or a polycarbonate resin.
- styrene resin examples include rubber reinforced styrene resin and non-rubber reinforced styrene resin.
- rubber reinforced styrene resins include rubber reinforced polystyrene resin (HIPS resin), acrylonitrile / butadiene rubber / styrene polymer (ABS resin), acrylonitrile / acrylic rubber / styrene polymer (AAS resin), methacrylic acid.
- HIPS resin rubber reinforced polystyrene resin
- ABS resin acrylonitrile / butadiene rubber / styrene polymer
- AAS resin acrylonitrile / acrylic rubber / styrene polymer
- methacrylic acid examples thereof include methyl butadiene rubber / styrene resin (MBS resin), acrylonitrile / ethylene-propylene rubber / styrene polymer (AES resin), and the like.
- non-rubber reinforced styrene resins include styrene polymers (PS resins), styrene / acrylonitrile copolymers (AS resins), ⁇ -methylstyrene / acrylonitrile copolymers ( ⁇ MS-ACN resins), methyl methacrylate.
- MS resin styrene polymers
- AS resins styrene / acrylonitrile copolymers
- ⁇ MS-ACN resins ⁇ -methylstyrene / acrylonitrile copolymers
- MS resin methyl methacrylate / acrylonitrile / styrene copolymer
- MAS resin methyl methacrylate / acrylonitrile / styrene copolymer
- S-NPMI resin styrene / N-phenylmaleimide / acrylonitrile And polymers
- SA-NPMI resins styren
- the polycarbonate resin that can be used in this embodiment is a polymer obtained by a phosgene method in which various dihydroxydiaryl compounds and phosgene are reacted, or a transesterification method in which a dihydroxydiaryl compound and a carbonate such as diphenyl carbonate are reacted.
- Typical examples include 2,2-bis (4-hydroxyphenyl) propane; polycarbonate resin produced from “bisphenol A”.
- dihydroxydiaryl compounds examples include bisphenol A, bis (4-hydroxydiphenyl) methane, 1,1-bis (4-hydroxyphenyl) ethane, 2,2-bis (4-hydroxyphenyl) butane, 2, 2-bis (4-hydroxyphenyl) octane, bisbis (4-hydroxydiphenyl) phenylmethane, 2,2-bis (4-hydroxydiphenyl-3-methylphenyl) propane, 1,1-bis (4-hydroxy-3) -Tert-butylphenyl) propane, 2,2-bis (4-hydroxy-3-bromophenyl) propane, 2,2-bis (4-hydroxy-3,5dibromophenyl) propane, 2,2-bis (4 -Bis (hydroxyaryl) alkanes such as hydroxy-3,5-dichlorophenyl) propane 1,1-bis (4-hydroxyphenyl) cyclopentane, bis (hydroxyaryl) cycloalkanes such as 1,1-bis (4-hydroxyphenyl) cyclohe
- piperazine, dipiperidyl hydroquinone, resorcin, 4,4'-dihydroxydiphenyls and the like may be mixed.
- the above-mentioned dihydroxydiaryl compound and a trivalent or higher valent phenol compound as shown below may be mixed and used.
- the trivalent or higher phenol include phloroglucin, 4,6-dimethyl-2,4,6-tri- (4-hydroxyphenyl) -heptene-2,4,6-dimethyl-2,4,6-tri- ( 4-hydroxyphenyl) -heptane, 1,3,5-tri- (4-hydroxyphenyl) -benzol, 1,1,1-tri- (4-hydroxyphenyl) -ethane and 2,2-bis- (4 , 4 ′-(4,4′-hydroxydiphenyl) cyclohexyl) -propane and the like.
- the weight average molecular weight is usually 10,000 to 80,000, preferably 15,000 to 60,000.
- a molecular weight adjusting agent, a catalyst and the like can be used as necessary.
- the content of the graft copolymer (A) is 1 with respect to a total of 100 parts by mass of the graft copolymer (A) and the thermoplastic resin (B).
- the content of the thermoplastic resin (B) is preferably 50 to 99 parts by mass.
- the content of the graft copolymer (A) is more preferably 3 to 40 parts by mass with respect to 100 parts by mass in total of the graft copolymer (A) and the thermoplastic resin (B).
- the part by mass is particularly preferred.
- the thermoplastic resin composition of the present embodiment is a pigment, a dye, a reinforcing agent (talc, mica, clay, glass fiber, etc.) at the time of resin mixing or molding depending on the purpose. ),
- Known additives such as ultraviolet absorbers, antioxidants, lubricants, mold release agents, plasticizers, flame retardants, antistatic agents, inorganic and organic antibacterial agents, and the like.
- thermoplastic resin composition of the present embodiment can be obtained by mixing the above-described components.
- well-known kneading apparatuses such as an extruder, a roll, a Banbury mixer, a kneader, can be used, for example. There is no limitation on the mixing order.
- the graft copolymer was determined by measuring the ethylene copolymer content (%) of the graft copolymer and the mass ratio (%) of the dichloromethane-insoluble part of the graft copolymer by the method described below.
- the graft copolymer (A-1) will be described as an example.
- the graft copolymer (A-1) was 92 parts after drying.
- the ethylene polymer content of the graft copolymer (A-1) is represented by the following formula (1).
- the graft copolymer (A-1) will be described as an example.
- the graft copolymer (A-1) was fractionated using dichloromethane, and the mass ratio of the dichloromethane-insoluble part was determined to be 90.7%. Since the ethylene polymer is present in the dichloromethane insoluble part, the graft ratio can be obtained from the following formula (2).
- thermoplastic resin (B-1) In a nitrogen-substituted reactor, 48 parts (solid content) of a rubber-like polymer (b-2), 140 parts of water, 0.1 part of ethylenediaminetetraacetic acid disodium salt, 0.001 part of ferrous sulfate, sodium formaldehydesulfoxy After adding 0.3 parts of the rate and heating to 60 ° C., a mixture of 39 parts of styrene, 13 parts of acrylonitrile, 0.6 part of t-dodecyl mercaptan and 0.2 part of cumene hydroperoxide and 1.5 parts of potassium oleate And a mixture of 15 parts of water was added continuously over 4 hours.
- thermoplastic resin (B-1) which is an acrylonitrile / butadiene rubber / styrene polymer.
- the graft ratio of the obtained thermoplastic resin (B-1) and the reduced viscosity of acetone-soluble matter (0.4 g / 100 cc, measured at 30 ° C. as N, N dimethylformamide solution) were 40% and 0.00%, respectively. It was 39 dl / g.
- the graft ratio was determined in the same manner as described above from the acetone soluble and insoluble amounts of the graft copolymer and the mass of the composite rubber in the graft copolymer.
- thermoplastic resin (B-2) A monomer mixture consisting of 66.2 parts by weight of styrene, 22.1 parts by weight of acrylonitrile, 11.7 parts by weight of ethylbenzene, and 0.35 parts by weight of t-dodecyl mercaptan was continuously fed to the reactor purged with nitrogen, Polymerization was carried out at 140 ° C. The polymerization liquid was led from the reactor to a separation and recovery step consisting of a preheater and a vacuum tank, and after recovery and extrusion, a thermoplastic resin (B-2) which was a styrene / acrylonitrile copolymer was obtained. The reduced viscosity of the thermoplastic resin (B-2) obtained by the above method was 0.62 dl / g.
- thermoplastic resin (B-3) A monomer mixture consisting of 66.2 parts by weight of styrene, 22.1 parts by weight of acrylonitrile, 11.7 parts by weight of ethylbenzene, and 0.40 parts by weight of t-dodecyl mercaptan was continuously fed to the reactor substituted with nitrogen, Polymerization was carried out at 140 ° C. The polymerization liquid was guided from the reactor to a separation and recovery step consisting of a preheater and a vacuum tank, and after recovery and extrusion, a thermoplastic resin (B-3) which was a styrene / acrylonitrile copolymer was obtained. The reduced viscosity of the thermoplastic resin (B-3) obtained by the above method was 0.50 dl / g.
- thermoplastic resin (B-4) A monomer mixture consisting of 66.2 parts by weight of styrene, 22.1 parts by weight of acrylonitrile, 11.7 parts by weight of ethylbenzene, and 0.55 parts by weight of t-dodecyl mercaptan was continuously fed to the reactor purged with nitrogen, Polymerization was carried out at 140 ° C. The polymerization liquid was led from the reactor to a separation and recovery step consisting of a preheater and a vacuum tank, and after recovery and extrusion, a thermoplastic resin (B-4) which was a styrene / acrylonitrile copolymer was obtained. The reduced viscosity of the thermoplastic resin (B-4) obtained by the above method was 0.45 dl / g.
- thermoplastic resin (B-5) Polycarbonate resin: Caliber 200-15 manufactured by Sumika Stylon Polycarbonate Co., Ltd.
- Examples I-1 to I-9, Comparative Examples I-1 to I-7) After mixing the graft copolymer (A) and the thermoplastic resin (B) with the composition shown in Table 1, Examples I-1, I-2, I-5, I-6 were used using a 40 mm twin screw extruder. And Comparative Examples I-1, I-3, and I-5 were melt-kneaded at 200 ° C., Example I-9 and Comparative Example I-7 were 280 ° C., and the others were 250 ° C. to obtain pellets. From the obtained pellets, Examples I-1, I-2, I-5, I-6 and Comparative Examples I-1, I-3, I-5 were 200 ° C., Example I-9 and Comparative Example I. Various injection molded articles were molded using an injection molding machine set at 280 ° C. for -7, and 250 ° C. for other than these, and physical properties were evaluated. The evaluation results are shown in Table 1. In addition, each evaluation method is shown below.
- test material in the figure After each test piece was allowed to stand in a temperature-controlled room at 23 ° C. and a humidity of 50% for 24 hours, as shown in FIG. 1, the upper surface test piece and the lower surface test piece (test material in the figure) were superposed on each other. A test force generated when a load of 1.389 kg was placed on the test piece and pulled at a constant speed of 50 mm per minute was measured with a load cell, and a reduction rate was obtained from the following formula (3) and evaluated in three stages.
- Reduction rate (%) [(ab) / a] ⁇ 100 (3) a: Test force without addition of graft copolymer (A) b: Test force with addition of graft copolymer (A) (evaluation) ⁇ : Reduction rate of 10% or more ⁇ : Reduction rate of 5% or more and less than 10% ⁇ : Reduction rate of less than 5%
- Improvement rate (%) [(ab) / a] ⁇ 100 (4) a: Number of occurrences of squeak noise without addition of graft copolymer (A) (times) b: Number of occurrences of squeak noise when the graft copolymer (A) is added (times) (Evaluation) ⁇ : Improvement rate of 30% or more ⁇ : Improvement rate of less than 30%
- Examples I-10 to I-17, Comparative Examples I-8 to I-9) After mixing the graft copolymer (A) and the thermoplastic resin (B) with the composition shown in Table 2, Examples I-10, I-11, I-14, and I-15 were conducted using a 40 mm twin screw extruder.
- Comparative Example I-8 pellets were obtained by melting and kneading at 200 ° C., except for these at 250 ° C. From the obtained pellets, Examples I-10, I-11, I-14, I-15 and Comparative Example I-8 were subjected to various injection moldings using an injection molding machine set at 200 ° C., and the others were set at 250 ° C. Articles were molded and evaluated for wear resistance. The evaluation results are shown in Table 2. The evaluation method is shown below.
- Abrasion amount (mg) mass before test (mg) ⁇ mass after test (mg) (5)
- Reduction rate (%) [(ab) / a] ⁇ 100 (6)
- Examples I-1 to I-9 are examples of thermoplastic resin compositions containing the graft copolymer (A) of the present invention, and have general physical properties such as fluidity and tensile strength. While maintained, there was no delamination, and the sliding characteristics and the improvement rate of squeaking noise were good.
- Comparative Examples I-1 and I-2 are examples in which a graft copolymer (A) using an ethylene polymer that does not satisfy the provisions of the present invention is blended, and has poor sliding characteristics. It was a thing. Comparative Examples I-3 to I-4 and I-7 were examples in which the graft copolymer (A) was not blended, and the sliding characteristics and the improvement rate of squeaking noise were inferior. Comparative Examples I-5 to I-6 are examples in which an ethylene polymer that is not graft-polymerized is blended, and delamination occurs.
- Examples I-10 to I-17 are examples of thermoplastic resin compositions containing the graft copolymer (A) of the present invention, and have a good improvement rate in wear resistance. there were.
- Comparative Examples I-8 to I-9 were examples in which the graft copolymer (A) of the present invention was not blended, and the improvement rate of wear resistance was inferior.
- Example II-1 to II-9 Comparative Examples II-1 to II-7
- graft copolymer (A) and the thermoplastic resin (B) were used using a 40 mm twin screw extruder.
- Comparative Examples II-1, II-3, and II-5 were melt-kneaded at 200 ° C.
- Example II-9 and Comparative Example II-7 were 280 ° C.
- the others were 250 ° C. to obtain pellets. From the obtained pellets, Examples II-1, II-2, II-5, II-6 and Comparative Examples II-1, II-3, II-5 were 200 ° C., Example II-9 and Comparative Example II.
- Heat resistance test A test piece was molded in accordance with ISO 294 and measured for heat resistance. The heat resistance was based on ISO75, and the deflection temperature under a load of 1.8 MPa was measured. Unit: ° C
- Example II-10 to II-17 Comparative Examples II-8 to II-9
- graft copolymer (A) and the thermoplastic resin (B) After mixing the graft copolymer (A) and the thermoplastic resin (B) with the composition shown in Table 4, Examples II-10, II-11, II-14, and II-15 using a 40 mm twin screw extruder.
- Comparative Example II-8 pellets were obtained by melting and kneading at 200 ° C., except for these, at 250 ° C. From the obtained pellets, Examples II-10, II-11, II-14, II-15 and Comparative Example II-8 were subjected to various injection moldings on an injection molding machine set at 200 ° C., and the others were set at 250 ° C. Articles were molded and evaluated for wear resistance. The evaluation results are shown in Table 4. The wear resistance evaluation was performed in the same manner as described above.
- Examples II-1 to II-9 are examples of thermoplastic resin compositions containing the graft copolymer (A) of the present invention. There was no occurrence, and the improvement rate of sliding characteristics and squeaking sound was good.
- Comparative Examples II-1 and II-2 are examples in which a graft copolymer (A) using an ethylene-based polymer that does not satisfy the provisions of the present invention is blended. It was inferior to sound improvement. Comparative Examples II-3 to II-4 and II-7 were examples in which the graft copolymer (A) was not blended, and the improvement in sliding characteristics and squeaking noise were poor. Comparative Examples II-5 to II-6 were examples in which an ethylene polymer that was not graft-polymerized was blended, and delamination occurred.
- Examples II-10 to II-17 are examples of thermoplastic resin compositions containing the graft copolymer (A) of the present invention, and have a good improvement rate in wear resistance. there were.
- Comparative Examples II-8 to II-9 were examples in which the graft copolymer (A) of the present invention was not blended, and the improvement rate of wear resistance was inferior.
- thermoplastic resin composition blended with the graft copolymer of the present invention does not generate delamination while maintaining general physical properties and / or heat resistance, and has improved sliding characteristics and squeaking noise.
- it is useful as a resin modifier for a squeaking noise prevention material.
- the thermoplastic resin composition blended with the graft copolymer of the present invention can provide a molded product with improved sliding characteristics and squeaking noise without delamination while maintaining heat resistance.
Abstract
Description
log(aT)=Ea/R(1/T-1/T0)
[Rは気体定数であり、T0は基準温度(463K)である。]
アレニウス型プロットlog(aT)-(1/T)において、直線近似をした時に得られる相関係数r2が0.99以上であるときのEa値を、本発明における流動の活性化エネルギーとする。
<測定条件>
ジオメトリー:パラレルプレート
プレート直径:25mm
プレート間隔(測定スタート時点):1.5mm
ストレイン :5%
角周波数 :0.1~100rad/秒
測定雰囲気 :窒素下
以下に示すエチレン系重合体(a-1)、(a-2)及び(a-3)を準備した。
住友化学(株)製、商品名「スミカセンEP GT140」
(エチレン-1-ブテン-1-ヘキセン共重合体)
流動性:0.9(g/10min)
密度:0.918(g/cm3)
数平均分子量:18,000
重量平均分子量:180,000
分子量分布:10
分子量が1万以下の割合:9.6(%)
数平均換算粒子径:3700μm
流動の活性化エネルギー:70(kJ/mol)
数平均換算粒子径:3700μm
住友化学(株)製、商品名「スミカセン L405」
(低密度ポリエチレン)
流動性:3.7(g/10min)
密度:0.924(g/cm3)
数平均分子量:38,200
重量平均分子量:307,000
分子量分布:8
分子量が1万以下の割合:5.0(%)
数平均換算粒子径:3000μm
Braskem社製、商品名「SLH218」
流動性:2.3(g/10min)
密度:0.916(g/cm3)
流動の活性化エネルギー:35(kJ/mol)
数平均換算粒子径:5000μm
[グラフト共重合体(A-1)]
100Lの耐圧容器に脱イオン水300部、ポリオキシエチレンポリオキシプロピレングリコール(プルロニックF-68)0.12部、硫酸マグネシウム0.6部、エチレン系重合体(a-1)60部仕込み、攪拌しつつ槽内の窒素置換を行った。その後、スチレン24部、アクリロニトリル16部、tert-ブチルパーオキシピバレート(B(PV))1.1部、tert-ブチルパーオキシ-2-エチルヘキサノエート(カヤエステルO)0.1部、1,4-ベンゾキノン0.05部から構成される混合モノマーと脱イオン水50部を仕込み槽内の窒素置換を行った。槽内温度を85℃まで昇温後、85℃になってから1時間反応を継続させた。反応終了後、槽内温度を40℃まで冷却し、回収・洗浄・乾燥を行うことでグラフト共重合体(A-1)を得た。グラフト率の測定を下記に記載の方法で行ったところ、グラフト率は32%であった。
100Lの耐圧容器に脱イオン水300部、ポリオキシエチレンポリオキシプロピレングリコール(プルロニックF-68)0.12部、硫酸マグネシウム0.6部、エチレン系重合体(a-1)53部仕込み、攪拌しつつ槽内の窒素置換を行った。その後、スチレン30部、アクリロニトリル17部、tert-ブチルパーオキシピバレート(B(PV))1.1部、tert-ブチルパーオキシ-2-エチルヘキサノエート(カヤエステルO)0.1部、1,4-ベンゾキノン0.05部から構成される混合モノマーと脱イオン水50部を仕込み槽内の窒素置換を行った。槽内温度を85℃まで昇温後、85℃になってから1時間反応を継続させた。反応終了後、槽内温度を40℃まで冷却し、回収・洗浄・乾燥を行うことでグラフト共重合体(A-2)を得た。グラフト率の測定を下記に記載の方法で行ったところ、グラフト率は41%であった。
100Lの耐圧容器に脱イオン水300部、ポリオキシエチレンポリオキシプロピレングリコール(プルロニックF-68)0.12部、硫酸マグネシウム0.6部、エチレン系重合体(a-2)部60仕込み、攪拌しつつ槽内の窒素置換を行った。その後、スチレン24部、アクリロニトリル16部、tert-ブチルパーオキシピバレート(B(PV))1.1部、tert-ブチルパーオキシ-2-エチルヘキサノエート(カヤエステルO)0.1部、1,4-ベンゾキノン0.05部から構成される混合モノマーと脱イオン水50部を仕込み槽内の窒素置換を行った。槽内温度を85℃まで昇温後、85℃になってから1時間反応を継続させた。反応終了後、槽内温度を40℃まで冷却し、回収・洗浄・乾燥を行うことでグラフト共重合体(A-3)を得た。グラフト率の測定を下記に記載の方法で行ったところ、グラフト率は34%であった。
100Lの耐圧容器に脱イオン水300部、ポリオキシエチレンポリオキシプロピレングリコール(プルロニックF-68)0.12部、硫酸マグネシウム0.6部、エチレン系重合体(a-1)62部仕込み、攪拌しつつ槽内の窒素置換を行った。その後、スチレン23部、アクリロニトリル15部、tert-ブチルパーオキシピバレート(B(PV))1.1部、tert-ブチルパーオキシ-2-エチルヘキサノエート(カヤエステルO)0.1部、1,4-ベンゾキノン0.05部から構成される混合モノマーと脱イオン水50部を仕込み槽内の窒素置換を行った。槽内温度を85℃まで昇温後、85℃になってから1時間反応を継続させた。反応終了後、槽内温度を40℃まで冷却し、回収・洗浄・乾燥を行うことでグラフト共重合体(A-1)を得た。グラフト率の測定を下記に記載の方法で行ったところ、グラフト率は36%であった。
100Lの耐圧容器に脱イオン水300部、ポリオキシエチレンポリオキシプロピレングリコール(プルロニックF-68)0.12部、硫酸マグネシウム0.6部、エチレン系重合体(a-1)50部仕込み、攪拌しつつ槽内の窒素置換を行った。その後、スチレン32部、アクリロニトリル18部、tert-ブチルパーオキシピバレート(B(PV))1.1部、tert-ブチルパーオキシ-2-エチルヘキサノエート(カヤエステルO)0.1部、1,4-ベンゾキノン0.05部から構成される混合モノマーと脱イオン水50部を仕込み槽内の窒素置換を行った。槽内温度を85℃まで昇温後、85℃になってから1時間反応を継続させた。反応終了後、槽内温度を40℃まで冷却し、回収・洗浄・乾燥を行うことでグラフト共重合体(A-2)を得た。グラフト率の測定を下記に記載の方法で行ったところ、グラフト率は45%であった。
100Lの耐圧容器に脱イオン水300部、ポリオキシエチレンポリオキシプロピレングリコール(プルロニックF-68)0.12部、硫酸マグネシウム0.6部、エチレン系重合体(a-2)部62仕込み、攪拌しつつ槽内の窒素置換を行った。その後、スチレン23部、アクリロニトリル15部、tert-ブチルパーオキシピバレート(B(PV))1.1部、tert-ブチルパーオキシ-2-エチルヘキサノエート(カヤエステルO)0.1部、1,4-ベンゾキノン0.05部から構成される混合モノマーと脱イオン水50部を仕込み槽内の窒素置換を行った。槽内温度を85℃まで昇温後、85℃になってから1時間反応を継続させた。反応終了後、槽内温度を40℃まで冷却し、回収・洗浄・乾燥を行うことでグラフト共重合体(A-3)を得た。グラフト率の測定を下記に記載の方法で行ったところ、グラフト率は30%であった。
下記に示す方法によりグラフト共重合体のエチレン系重合体含有率(%)と、グラフト共重合体のジクロロメタン不溶部の質量比率(%)とを測定し、グラフト率を求めた。
グラフト共重合体(A-1)を例として説明する。グラフト共重合体(A-1)は乾燥後に92部得られた。エチレン系重合体(a-1)は仕込み量の99%がグラフト共重合体中に含有すると仮定することで、グラフト共重合体(A-1)のエチレン系重合体含有量は下記式(1)より求めることができる。
エチレン系重合体含有率(%)=[{エチレン系重合体の仕込み量(部)×0.99}/グラフト共重合体の質量(部)]×100 …(1)
=[(62×0.99)/92]×100
=66.7(%)
グラフト共重合体(A-1)を例として説明する。グラフト共重合体(A-1)をジクロロメタンを用いて分別作業を行うことでジクロロメタン不溶部の質量比率を求めたところ90.7%であった。エチレン系重合体はジクロロメタン不溶部に存在するので、グラフト率は下記式(2)より求めることができる。
グラフト率(%)=[{ジクロロメタン不溶部の質量比率(%)-エチレン系重合体含有率(%)}/エチレン系重合体含有率(%)]×100 …(2)
=(90.7-66.7)/66.7×100
=36(%)
耐圧容器に、1,3-ブタジエン93部、スチレン7部、n-ドデシルメルカプタン0.5部、過硫酸カリウム0.24部、ロジン酸ナトリウム1.5部、水酸化ナトリウム0.1部及び脱イオン水150部を仕込み、70℃で15時間反応させた後、冷却して反応を終了させることで、ゴム状重合体(b-1)を得た。得られたゴム状重合体(b-1)を、四酸化オスミウム(OsO4)で染色し、乾燥後に透過型電子顕微鏡で写真撮影をした。画像解析処理装置(装置名:旭化成(株)製 IP-1000PC)を用いて1000個のゴム粒子の面積を計測し、その円相当径(直径)を求め、ゴム状重合体(b-1)の重量平均粒子径を算出した。重量平均粒子径は0.10μmであった。
上記で得られたゴム状重合体(b-1)を用いて凝集肥大化処理を行った。撹拌槽にゴム状重合体(b-1)270部、10%ドデシルベンゼンスルホン酸ナトリウム水溶液0.055部を添加して10分間撹拌した後、5%リン酸水溶液0.8部を10分間に亘り添加した。その後、10%水酸化カリウム水溶液1部を添加することで、ゴム状重合体(b-2)を得た。得られたゴム状重合体(b-2)の重量平均粒子径を上述の方法で測定した結果、重量平均粒子径は0.35μmであった。
窒素置換した反応器にゴム状重合体(b-2)48部(固形分)、水140部、エチレンジアミン四酢酸二ナトリウム塩0.1部、硫酸第1鉄0.001部、ナトリウムホルムアルデヒドスルホキシレート0.3部を入れ、60℃に加熱後、スチレン39部、アクリロニトリル13部、t-ドデシルメルカプタン0.6部及びキュメンハイドロパーオキサイド0.2部からなる混合物とオレイン酸カリウム1.5部及び水15部からなる混合物を4時間に亘り連続的に添加した。添加終了後さらに60℃で2時間重合した。その後、塩析・脱水・乾燥することでアクリロニトリル・ブタジエン系ゴム・スチレン重合体である熱可塑性樹脂(B-1)を得た。
窒素置換した反応器にスチレン66.2重量部、アクリロニトリル22.1重量部、エチルベンゼン11.7重量部、t-ドデシルメルカプタン0.35重量部からなる単量体混合物を連続的に供給して、140℃で重合を行なった。反応器より重合液を予熱器と真空槽より成る分離回収工程に導き、回収、押出後、スチレン・アクリロニトリル共重合体である熱可塑性樹脂(B-2)を得た。上述の方法により、得られた熱可塑性樹脂(B-2)の還元粘度は0.62dl/gであった。
窒素置換した反応器にスチレン66.2重量部、アクリロニトリル22.1重量部、エチルベンゼン11.7重量部、t-ドデシルメルカプタン0.40重量部からなる単量体混合物を連続的に供給して、140℃で重合を行なった。反応器より重合液を予熱器と真空槽より成る分離回収工程に導き、回収、押出後、スチレン・アクリロニトリル共重合体である熱可塑性樹脂(B-3)を得た。上述の方法により、得られた熱可塑性樹脂(B-3)の還元粘度は0.50dl/gであった。
窒素置換した反応器にスチレン66.2重量部、アクリロニトリル22.1重量部、エチルベンゼン11.7重量部、t-ドデシルメルカプタン0.55重量部からなる単量体混合物を連続的に供給して、140℃で重合を行なった。反応器より重合液を予熱器と真空槽より成る分離回収工程に導き、回収、押出後、スチレン・アクリロニトリル共重合体である熱可塑性樹脂(B-4)を得た。上述の方法により、得られた熱可塑性樹脂(B-4)の還元粘度は0.45dl/gであった。
ポリカーボネート樹脂:住化スタイロンポリカーボネート(株)製 カリバー 200-15
表1に示す組成でグラフト共重合体(A)、熱可塑性樹脂(B)を混合した後、40mm二軸押出機を用いて実施例I-1、I-2、I-5、I-6及び比較例I-1、I-3、I-5は200℃、実施例I-9及び比較例I-7は280℃、これら以外は250℃にて溶融混練してペレットを得た。得られたペレットより、実施例I-1、I-2、I-5、I-6及び比較例I-1、I-3、I-5は200℃、実施例I-9及び比較例I-7は280℃、これら以外は250℃に設定した射出成形機にて種々の射出成形品を成形し、物性評価を行った。評価結果を表1に示す。なお、それぞれの評価方法を以下に示す。
流動性:ISO 1133に準拠してメルトボリュームレイト(実施例I-9及び比較例I-7は300℃、1.2kg、これら以外は220℃、10kg)を測定して評価した。
単位:cm3/10min
引張強度:ISO527準拠。
単位:MPa
得られたペレットを射出成形して得られた平板試験片(縦×横×厚み=15cm×9cm×3mm、光沢面)のゲート部にカッターで切り込みを入れ、剥離するかどうかを判定した。
○:剥離なし
×:剥離あり
以下の下面試験片及び上面試験片を用意した。
下面試験片:得られたペレットを射出成形して得られた平板試験片(縦×横×厚み=15cm×9cm×3mm、光沢面)。
上面試験片:超耐熱ABS樹脂(KU-630R-3(日本エイアンドエル(株)製))を射出成形して得られた平板試験片(縦×横×厚み=15cm×9cm×3mm、光沢面)を(縦×横×厚み=4cm×4cm×3mm)に切り出したもの。
減少率(%)=[(a-b)/a]×100 …(3)
a:グラフト共重合体(A)無添加での試験力
b:グラフト共重合体(A)添加での試験力
(評価)
○:減少率10%以上
△:減少率5%以上10%未満
×:減少率5%未満
下面試験片:得られたペレットを射出成形して得られた平板試験片(縦×横×厚み=15cm×9cm×3mm、光沢面)。
コップ型成形品:超耐熱ABS樹脂(KU-630R-3(日本エイアンドエル(株)製))を射出成形して得られたコップ型成形品(直径×高さ×厚み×重さ=6.2cm×8.1cm×2mm×50g)。
改善率(%)=[(a-b)/a]×100 …(4)
a:グラフト共重合体(A)無添加でのきしみ音発生回数(回)
b:グラフト共重合体(A)添加でのきしみ音発生回数(回)
(評価)
○:改善率30%以上
×:改善率30%未満
表2に示す組成でグラフト共重合体(A)及び熱可塑性樹脂(B)を混合した後、40mm二軸押出機を用いて実施例I-10、I-11、I-14、I-15及び比較例I-8は200℃、これら以外は250℃にて溶融混練してペレットを得た。得られたペレットより、実施例I-10、I-11、I-14、I-15及び比較例I-8は200℃、これら以外は250℃に設定した射出成形機にて種々の射出成形品を成形し、耐摩耗性評価を行った。評価結果を表2に示す。なお、評価方法を下記に示す。
得られたペレットを射出成形した平板試験片(縦×横×厚み=15cm×15cm×3mm)を、縦×横×厚み=9cm×9cm×3mmに切り出し、平板試験片中心部に6mmの孔をあけたものを試験片として用意した。各試験片を23℃、湿度50%の恒温室に48時間静置させた後に、テーバー式摩耗試験機を用いて下記に示した条件下で摩耗試験を行い、式(5)にて摩耗量を、式(6)にて減少率を求め、3段階で評価した。
(条件)
摩耗輪:CS-17(テーバー社製)
荷重:750g、試験機アームの重量含め1000gに調整。
テーブル回転数:1000回
回転速度:70rpm
a:グラフト共重合体(A)無添加での摩耗量(mg)
b:グラフト共重合体(A)添加での摩耗量(mg)
(評価)
◎:減少率40%超過
○:減少率10%以上40%未満
×:減少率10%未満
表3に示す組成でグラフト共重合体(A)、熱可塑性樹脂(B)を混合した後、40mm二軸押出機を用いて実施例II-1、II-2、II-5、II-6及び比較例II-1、II-3、II-5は200℃、実施例II-9及び比較例II-7は280℃、これら以外は250℃にて溶融混練してペレットを得た。得られたペレットより、実施例II-1、II-2、II-5、II-6及び比較例II-1、II-3、II-5は200℃、実施例II-9及び比較例II-7は280℃、これら以外は250℃に設定した射出成形機にて種々の射出成形品を成形し、物性評価を行った。評価結果を表3に示す。なお、デラミネーション試験、摺動特性の評価(摩擦試験)、きしみ音特性の評価については、上記と同様に行った。耐熱性の評価方法は以下に示す。
ISO 294に準拠して試験片を成形し、耐熱性の測定をした。
耐熱性はISO75に準拠し、荷重1.8MPaの荷重たわみ温度を測定した。
単位:℃
表4に示す組成でグラフト共重合体(A)及び熱可塑性樹脂(B)を混合した後、40mm二軸押出機を用いて実施例II-10、II-11、II-14、II-15及び比較例II-8は200℃、これら以外は250℃にて溶融混練してペレットを得た。得られたペレットより、実施例II-10、II-11、II-14、II-15及び比較例II-8は200℃、これら以外は250℃に設定した射出成形機にて種々の射出成形品を成形し、耐摩耗性評価を行った。評価結果を表4に示す。なお、耐摩耗性評価は、上記と同様に行った。
Claims (12)
- エチレン系重合体(a)30~80質量部の存在下に、芳香族ビニル系単量体(b)及び必要に応じて芳香族ビニル系単量体(b)と共重合可能な他のビニル系単量体(c)を合計で20~70質量部(ただし、(a)、(b)及び(c)の合計は100質量部)をグラフト重合して得られるグラフト共重合体(A)であって、
前記エチレン系重合体(a)は、密度が0.900g/cm3以上0.966g/cm3未満、数平均分子量が1万~5万、分子量分布が5~15、分子量が1万以下の割合が5.5%以上であることを特徴とするグラフト共重合体。 - グラフト率が30%以上であることを特徴とする請求項1に記載のグラフト共重合体。
- 前記エチレン系重合体(a)が、共重合成分としてエチレンと炭素数3~20のα-オレフィンとを含有するエチレン-α-オレフィン共重合体であることを特徴とする請求項1又は2に記載のグラフト共重合体。
- 前記エチレン系重合体(a)の数平均換算粒子径[(長辺+短辺)/2]が、500~4500μmであることを特徴とする請求項1~3のいずれか一項に記載のグラフト共重合体。
- エチレン系重合体(a)30~80質量部の存在下に、芳香族ビニル系単量体(b)及び必要に応じて芳香族ビニル系単量体(b)と共重合可能な他のビニル系単量体(c)を合計で20~70質量部(ただし、(a)、(b)及び(c)の合計は100質量部)をグラフト重合して得られるグラフト共重合体(A)であって、
エチレン系重合体(a)は、密度が0.900g/cm3以上0.966g/cm3未満であり、流動の活性化エネルギーが40~120kJ/molであることを特徴とするグラフト共重合体。 - グラフト率が30%以上であることを特徴とする請求項5に記載のグラフト共重合体。
- 前記エチレン系重合体(a)が、共重合成分としてエチレンと炭素数3~20のα-オレフィンとを含有するエチレン-α-オレフィン共重合体であることを特徴とする請求項5又は6に記載のグラフト共重合体。
- 前記エチレン系重合体(a)の数平均換算粒子径[(長辺+短辺)/2]が、500~4500μmであることを特徴とする請求項5~7のいずれか一項に記載のグラフト共重合体。
- 請求項1~8のいずれか一項に記載のグラフト共重合体(A)と、該グラフト共重合体(A)以外の熱可塑性樹脂(B)と、を含む熱可塑性樹脂組成物であって、
前記グラフト共重合体(A)及び前記熱可塑性樹脂(B)の合計100質量部に対して、前記グラフト共重合体(A)の含有量が1~50質量部であり且つ前記熱可塑性樹脂(B)の含有量が50~99質量部であることを特徴とする熱可塑性樹脂組成物。 - 熱可塑性樹脂(B)がスチレン系樹脂であることを特徴とする請求項9に記載の熱可塑性樹脂組成物。
- 熱可塑性樹脂(B)がポリカーボネート樹脂であることを特徴とする請求項9に記載の熱可塑性樹脂組成物。
- 熱可塑性樹脂(B)がスチレン系樹脂及びポリカーボネート樹脂であることを特徴とする請求項9に記載の熱可塑性樹脂組成物。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA2944986A CA2944986C (en) | 2014-04-18 | 2015-04-17 | Graft copolymer and thermoplastic resin composition |
CN201580019759.7A CN106232646B (zh) | 2014-04-18 | 2015-04-17 | 接枝共聚物以及热塑性树脂组合物 |
US15/304,773 US10538611B2 (en) | 2014-04-18 | 2015-04-17 | Graft copolymer and thermoplastic resin composition |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2014-086536 | 2014-04-18 | ||
JP2014-086537 | 2014-04-18 | ||
JP2014086536 | 2014-04-18 | ||
JP2014086537 | 2014-04-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2015159980A1 true WO2015159980A1 (ja) | 2015-10-22 |
Family
ID=54324181
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2015/061887 WO2015159980A1 (ja) | 2014-04-18 | 2015-04-17 | グラフト共重合体及び熱可塑性樹脂組成物 |
Country Status (4)
Country | Link |
---|---|
US (1) | US10538611B2 (ja) |
CN (2) | CN106232646B (ja) |
CA (1) | CA2944986C (ja) |
WO (1) | WO2015159980A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20180273665A1 (en) * | 2017-03-23 | 2018-09-27 | Nippon A&L Inc. | Modifier for polycarbonate and method for producing same |
WO2019188929A1 (ja) * | 2018-03-28 | 2019-10-03 | 三菱ケミカル株式会社 | ゴム含有グラフト重合体及び樹脂組成物 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04211447A (ja) * | 1990-01-19 | 1992-08-03 | Nippon Oil & Fats Co Ltd | 熱可塑性樹脂組成物の製造方法 |
JP2000038513A (ja) * | 1998-07-24 | 2000-02-08 | Otsuka Chem Co Ltd | 摺動部材用樹脂組成物及び摺動部材 |
JP2002038034A (ja) * | 2000-05-16 | 2002-02-06 | Nof Corp | 熱可塑性樹脂組成物及びその樹脂成形品 |
Family Cites Families (33)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2215604C2 (de) | 1972-03-30 | 1982-09-23 | Bayer Ag, 5090 Leverkusen | Pfropfpolymerisate und Verfahren zu deren Herstellung |
US4504434A (en) * | 1980-02-02 | 1985-03-12 | Bemis Company, Inc. | Process and polymer blend composition for stretch wrap film |
JPS5918714A (ja) * | 1982-07-23 | 1984-01-31 | Hitachi Chem Co Ltd | 改質ポリオレフイン粒子および発泡性改質ポリオレフイン粒子の製造法 |
US4957974A (en) | 1988-03-29 | 1990-09-18 | Rohm And Haas Company | Graft copolymers and blends thereof with polyolefins |
EP0352057A3 (en) | 1988-07-19 | 1991-02-27 | Sumitomo Chemical Company, Limited | Thermoplastic resin composition and process for producing the same |
JPH0747679B2 (ja) | 1988-09-30 | 1995-05-24 | 住友ダウ株式会社 | 耐薬品性に優れるゴム強化樹脂組成物 |
IT1230085B (it) | 1989-05-24 | 1991-10-05 | Montedipe Spa | Processo per la produzione in massa e in continuo di (co) polimeri vinil aromatici antiurto. |
CA2031406C (en) | 1989-12-21 | 2002-05-28 | Paolo Galli | Graft copolymers of polyolefins and a method of producing same |
EP0435171B1 (en) * | 1989-12-22 | 1998-03-18 | Nippon Oil And Fats Company, Limited | Sliding property improving agent |
US5140074A (en) | 1990-01-26 | 1992-08-18 | Himont Incorporated | Method of producing olefin polymer graft copolymers |
JPH0420550A (ja) | 1990-05-14 | 1992-01-24 | Nippon Oil & Fats Co Ltd | 熱可塑性樹脂組成物およびその製造方法 |
JP3147392B2 (ja) * | 1991-03-04 | 2001-03-19 | 宇部サイコン株式会社 | 熱可塑性樹脂組成物 |
TW254949B (ja) | 1991-03-07 | 1995-08-21 | Himont Inc | |
US5346963A (en) * | 1993-04-28 | 1994-09-13 | The Dow Chemical Company | Graft-modified, substantially linear ethylene polymers and methods for their use |
JPH0873540A (ja) | 1994-09-12 | 1996-03-19 | Mitsubishi Chem Corp | 変性樹脂の製造方法 |
WO1996026230A1 (fr) | 1995-02-24 | 1996-08-29 | Kanegafuchi Kagaku Kogyo Kabushiki Kaisha | Resine polyolefinique greffee et composition correspondante |
DE69813958T2 (de) | 1997-07-18 | 2004-03-11 | Mitsui Chemicals, Inc. | Ungesättigte Copolymere, Verfahren zu deren Herstellung und Mischungen, die diese enthalten |
CN1147515C (zh) | 1997-10-28 | 2004-04-28 | 卡斯特罗尔有限公司 | 制备接枝共聚物的方法 |
ATE434635T1 (de) | 1998-09-03 | 2009-07-15 | Ciba Holding Inc | Propfung von äthylenisch ungesättigten monomeren auf polymeren |
ITSA990005A1 (it) | 1999-02-11 | 2000-08-11 | Univ Degli Studi Salerno | Copolimeri a base di propilene contenenti unita' stireniche |
US6590039B1 (en) | 1999-03-02 | 2003-07-08 | Exxonmobil Chemical Patents Inc. | Silane grafted copolymers of an alpha-olefin and a vinyl aromatic monomer |
EP1277807B1 (en) | 2001-07-18 | 2007-05-02 | Mitsubishi Engineering-Plastics Corporation | Thermoplastic resin composition |
JP4556468B2 (ja) | 2004-03-30 | 2010-10-06 | 住友化学株式会社 | 表面保護フィルム |
ITMI20042401A1 (it) | 2004-12-16 | 2005-03-16 | Polimeri Europa Spa | Procedimento per la preparazione di co-polimeri vinilaromatici antiurto aggraffati su elastomero |
CN1300201C (zh) | 2005-03-15 | 2007-02-14 | 华南理工大学 | 聚烯烃与乙烯基单体接枝共聚物的合成方法 |
JP2007177189A (ja) * | 2005-12-28 | 2007-07-12 | Nippon Polyethylene Kk | エチレン系グラフト変性物及びグラフト変性組成物 |
EP2363445A1 (en) * | 2006-06-15 | 2011-09-07 | Dow Global Technologies LLC | Functionalized propylene interpolymers, compositions and articles prepared therefrom, and methods for making the same |
DE102007046291A1 (de) * | 2006-09-29 | 2008-06-19 | Sumitomo Chemical Company, Ltd. | Ethylen-α-olefincopolymer und Lebensmittelverpackungsmaterial |
CN101250302B (zh) | 2008-04-02 | 2010-06-23 | 广州市合诚化学有限公司 | 抗静电聚烯烃透气膜组合物及其制备透气膜的方法 |
JP5790172B2 (ja) * | 2011-06-07 | 2015-10-07 | 住友化学株式会社 | エチレン系樹脂組成物、成形品、電線及びケーブル |
CA2900301A1 (en) * | 2013-03-14 | 2014-10-02 | Saco Polymers, Inc. | Grafted polyethylene |
JP2015108109A (ja) | 2013-03-22 | 2015-06-11 | 日油株式会社 | Pc/abs樹脂組成物およびその樹脂成形品 |
JP5693695B1 (ja) * | 2013-10-28 | 2015-04-01 | 株式会社ウェルシィ | 浄水器及びその使用方法 |
-
2015
- 2015-04-17 CN CN201580019759.7A patent/CN106232646B/zh active Active
- 2015-04-17 US US15/304,773 patent/US10538611B2/en active Active
- 2015-04-17 CA CA2944986A patent/CA2944986C/en active Active
- 2015-04-17 WO PCT/JP2015/061887 patent/WO2015159980A1/ja active Application Filing
- 2015-04-17 CN CN201811286702.5A patent/CN109438624B/zh active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04211447A (ja) * | 1990-01-19 | 1992-08-03 | Nippon Oil & Fats Co Ltd | 熱可塑性樹脂組成物の製造方法 |
JP2000038513A (ja) * | 1998-07-24 | 2000-02-08 | Otsuka Chem Co Ltd | 摺動部材用樹脂組成物及び摺動部材 |
JP2002038034A (ja) * | 2000-05-16 | 2002-02-06 | Nof Corp | 熱可塑性樹脂組成物及びその樹脂成形品 |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20180273665A1 (en) * | 2017-03-23 | 2018-09-27 | Nippon A&L Inc. | Modifier for polycarbonate and method for producing same |
US10723826B2 (en) | 2017-03-23 | 2020-07-28 | Nippon A&L Inc. | Modifier for polycarbonate and method for producing same |
WO2019188929A1 (ja) * | 2018-03-28 | 2019-10-03 | 三菱ケミカル株式会社 | ゴム含有グラフト重合体及び樹脂組成物 |
JPWO2019188929A1 (ja) * | 2018-03-28 | 2020-12-10 | 三菱ケミカル株式会社 | ゴム含有グラフト重合体及び樹脂組成物 |
JP7120301B2 (ja) | 2018-03-28 | 2022-08-17 | 三菱ケミカル株式会社 | ゴム含有グラフト重合体及び樹脂組成物 |
Also Published As
Publication number | Publication date |
---|---|
CA2944986C (en) | 2022-02-22 |
CN106232646A (zh) | 2016-12-14 |
CA2944986A1 (en) | 2015-10-22 |
CN109438624B (zh) | 2021-07-09 |
CN109438624A (zh) | 2019-03-08 |
US10538611B2 (en) | 2020-01-21 |
CN106232646B (zh) | 2018-11-20 |
US20170037175A1 (en) | 2017-02-09 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US10227486B2 (en) | Contacting part made of thermoplastic resin composition with reduced squeaking noises | |
JP7216628B2 (ja) | グラフト共重合体及び熱可塑性樹脂組成物 | |
JP6439317B2 (ja) | 熱可塑性樹脂組成物及びその成形品 | |
JP5547793B2 (ja) | 熱可塑性樹脂組成物及び成形品 | |
WO2015159980A1 (ja) | グラフト共重合体及び熱可塑性樹脂組成物 | |
JP6584814B2 (ja) | グラフト共重合体及び熱可塑性樹脂組成物 | |
KR102437497B1 (ko) | 폴리카보네이트 개질제 및 그 제조 방법 | |
JP7406936B2 (ja) | 樹脂組成物及びその成形品 | |
JP7201880B1 (ja) | 熱可塑性樹脂組成物 | |
WO2023095826A1 (ja) | グラフト共重合体及び熱可塑性樹脂組成物 | |
JP6602516B1 (ja) | 熱可塑性樹脂組成物 | |
JP2022187748A (ja) | 熱可塑性樹脂組成物および成形品 | |
WO2022209415A1 (ja) | 艶消し性ポリカーボネート樹脂組成物 | |
JP2022547243A (ja) | 難燃ゴム強化ポリカーボネート系樹脂組成物およびその成形品 | |
JP2014122255A (ja) | 熱可塑性樹脂組成物及び成形品 | |
JP2021024983A (ja) | 樹脂組成物及びその成形品 | |
JP2012219226A (ja) | 帯電防止性熱可塑性樹脂組成物及びその成形品 | |
JP2017145318A (ja) | 熱可塑性樹脂組成物及びその成形品 | |
JP2016020440A (ja) | ポリカーボネート樹脂組成物 | |
JP2011144247A (ja) | ポリカーボネート樹脂組成物及び成形体 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 15779545 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2944986 Country of ref document: CA |
|
WWE | Wipo information: entry into national phase |
Ref document number: 15304773 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 15779545 Country of ref document: EP Kind code of ref document: A1 |