JPH09324080A - Original composition containing long-fiber-reinforced crystalline polyolefin resin and molded item formed therefrom - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a compsn. which exhibits an improved bite into an injection molding machine and thereby shortens the plastification time by externally adding a specified amt. of calcium stearate compd. to resin columns having specified properties and formed a crystalline polyolefin resin and a long-fiber reinforcement. SOLUTION: This compsn. is prepd. by the external (later) addition of 0.0015-0.15wt.%, pref. 0.008-0.12wt.%, still pref. 0.02-0.08wt.%, (based on the resin columns) calcium stearate compd. to long-fiber-reinforced resin columns which have an average length of 3-50mm, comprise 90-20wt.% crystalline polyolefin resin and 10-80wt.% long-fiber reinforcement (e.g. glass fibers), and contain the reinforcement arranged substantially in parallel. A molded item is produced by molding the compsn. or a compsn. comprising the compsn. and a crystalline polyolefin resin other than the one contained in the compsn. The molded item has a low void content and a high bending strength.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention
Calcium stearate was externally added (post-added) to the long-fiber-reinforced polyolefin crystalline resin columnar body containing the long-fiber-reinforced material in the (-α-) olefin crystalline resin aligned substantially in parallel. A composition mainly formed from long fiber-reinforced resin columnar bodies and calcium stearate (this may be referred to as "origin composition" in the present invention) and a molded article obtained by shaping the origin composition Regarding More specifically, the present invention relates to a long-fiber-reinforced columnar body, which is obtained by adding a long-fiber reinforcing material to a crystalline resin containing propylene as a main component as a base resin, in a substantially parallel aligned state, and calcium stearate. The present invention relates to a source composition to which a class is externally added and a molded article obtained by shaping the composition.

[0002]

2. Description of the Related Art When a base resin is a polyamide resin, a fibrous reinforcing material 5 having a length of 3 mm or more is contained in the polyamide resin.
A long fiber reinforced polyamide resin composition containing 80 to 80% by weight (composition basis) and 0.01 to 3% by weight of a metal salt of a fatty acid having 22 to 32 carbon atoms (composition basis) has already been disclosed in Japanese Patent Laid-Open No.
It is disclosed in Japanese Patent No. 9380 (reference 1).

Similarly, a polyamide resin is selected as a base resin, and 5 to 80% by weight (composition basis) of a fibrous reinforcing material having a length of 3 mm or more and a lithium salt of a fatty acid of 0.01 to
A long fiber reinforced polyamide resin composition containing 3% by weight (composition basis) is disclosed in JP-A-5-179137 (reference 2).

In any of the above-mentioned documents 1 and 2, the effect exhibited is different in the following points: (Difference 1) It is limited to the case where the base resin is a polyamide resin, and is completely different when the base resin is a polyolefin resin. I haven't touched it. (Difference 2) The addition of the fatty acid salt is carried out both internally and externally, but the emphasis is placed on the internal addition, and there is almost no difference in effect between the two. (Difference 3) The effects of Documents 1 and 2 are only the following: ◆ Biting property (easiness and stability when biting into the screw), ◆ Fluidity of resin, ◆ Smoke emission during injection molding Suppression and prevention of "burning" of molded products.

Therefore, Documents 1 and 2 do not even mention the effects of the present invention, namely, the measurement stability, the suppression of void generation in a molded product, and the suppression of fluctuations in the strength of the resulting molded product.

[0006]

SUMMARY OF THE INVENTION The purpose of the present invention is to indicate the state of the art of various melt-molded polyolefin crystalline resins which are not mentioned in the above mentioned documents, for example:
In injection molding, extrusion molding, compression molding or blow molding (also known as "hollow molding"), its biting property, measurement stability (shortening of plasticization time), suppression of void generation during molding, and fluctuation in strength of the resulting molded product Etc. is to improve.

[0007]

SUMMARY OF THE INVENTION The present invention achieves the intended effect by a constitution comprising a combination of the following requirements: (1) Polyolefin crystalline resin (A1) 9 which is a base resin
0 to 20% by weight and long fiber reinforcement (A2) 10 to 80% by weight
And a long fiber reinforced polyolefin crystalline resin columnar article (A) having an average length of 3 to 50 mm in which the long fiber reinforced material (A2) is aligned substantially in parallel. A composition of origin in which 0.0015 to 0.15% by weight of calcium stearate (B) is externally added. (5) Polyolefin crystalline resin 90-2 which is a base resin
0% by weight and 10 to 80% by weight of the long fiber reinforced material, wherein the long fiber reinforced material is aligned in substantially parallel to the long fiber reinforced polyolefin crystalline resin columnar article having an average length of 3 to 50 mm, 0.0015-0.
15% by weight of calcium stearate externally added to the original composition, and 100 parts by weight of the polyolefin crystalline resin 100 which may be a foreign substance different from the base resin.
~ 700 parts by weight of a hybrid composition formed at least. (6) Polyolefin crystalline resin 90-2 which is a base resin
0% by weight and 10 to 80% by weight of the long fiber reinforcing material, and the reinforcing material is aligned substantially in parallel. It is also a foreign substance different from the base resin with respect to 100% by weight of the origin composition or the origin composition to which 0.0015 to 0.15% by weight of calcium stearate is externally added based on the weight of the product. The hybrid composition formed at least with 100 to 700 parts by weight of the obtained polyolefin crystalline resin is subjected to one or more molding methods selected from injection molding method, extrusion molding method, compression molding method and blow molding method (hollow molding method). Shaped molded product.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION

<Poly (-α-) olefin crystalline resin (A1)> (1.1) Examples of the poly-α-olefin (commonly referred to as “polyolefin”) crystalline resin (A1) as a base resin include the following. The present invention is effective for any polyolefin crystalline resin.
FR (230 ℃; 21.2N) 60g / 10min or more, preferably 80 ~
Effective for those with 500 g / 10 min and a crystalline melting point of 120-160 ° C., preferably 145-160 ° C .: (1.1.1) Carbon number 2-12, preferably 2-10, more preferably 3-6. Α-olefin, for example, ethylene, propylene, 1-butene, 1-hexene, 4-methyl-1-pentene, 1-octene and crystalline homopolymer resins such as 1-decene,
Most preferably, a crystalline homopolymer resin of propylene, a crystalline copolymer resin of propylene and the above-mentioned α-olefin (excluding propylene), a crystalline homopolymer of the above-mentioned α-olefin or two or more kinds of α-olefins One or more crystalline resin compositions selected from the crystalline copolymer resin of (1.1.2) α-olefin crystalline homopolymer resin and crystalline copolymer resin. (1.1.3) As a modified product of the α-olefin crystalline resin, for example, a graft modified product of a carboxylic acid derivative which is a hydrophilicity-imparting agent for a resin stem molecule can be mentioned. The hydrophilicity-imparting agent is preferably a carboxylic acid derivative,
More preferably a maleic acid derivative, particularly preferably a modified product having maleic anhydride as a graph, a copolymer resin of α-olefin which is a monomer of the resin and a hydrophilic group-containing monomer, (1.2.4) A composition of a modified crystalline resin and the above modified crystalline resin.

The above crystalline resin composition may contain another polymer in an amount that does not substantially impair the properties of the poly-α-olefin. Examples of other polymers include ethylene-vinyl acetate copolymer resins, ethylene-acrylic acid (methacrylic acid) or their ester copolymer resins, ionomer resins, that is, ethylene-acrylic acid (methacrylic acid) copolymer resins. Examples thereof include sodium salts, potassium salts, calcium salts, zinc salts, ammonium salts and the like.

<Long fiber reinforced material (A2)> The effects of the present invention are "biteability", "measuring stability", "suppression of void formation" and "strength of strength" of a molded product obtained from the long fiber reinforced composition. As the long fiber reinforced material (A2) constituting the long fiber reinforced resin composition (A) excellent in "sway suppression", various materials described below can be appropriately used as necessary. That is, the long fiber reinforcing material (A2) used as a reinforcing material in the present invention can be selected from inorganic fibers and organic fibers. Examples of the inorganic fiber include glass fiber, rock wool (rock wool), metal fiber and carbon fiber. As the organic fiber, wholly aromatic polyamide (trade name: aramid) fiber with excellent mechanical strength, commonly known as “nylon MXD6” fiber (cocondensation polymer of m-xylylenediamine and adipic acid), PET
Fibers, PBT (poly-1,4-butylene terephthalate) fibers, wholly aromatic polyester (trade name: Kevlar) fibers and the like can be mentioned.

These long fiber reinforcements (A2) are used not only in the form of monofilaments, but in many cases in the form of rovings in which a large number of them are bundled together with a binder.

The glass long fibers which are commonly used among the above-mentioned long fiber reinforcing materials (A2) will be taken as an example for the following description. However, even when other long fibers are used as the reinforcing material, it is sufficient to perform the same as the case of using the glass long fibers, except for the case where special requirements are met.

<Glass Long Fiber Reinforcement Material (A2)> Ordinary glass roving supplied for resin reinforcement having an average fiber diameter of 6 to 30 μm and a monofilament (focusing) number of 500 to 6000, Preferably, the average fiber diameter is 9 to 23 μm, monofilament (focused)
The number of 1000 to 4000 is suitable for use. Depending on the application, two or more of these glass rovings may be used in the form of a yarn. The fiber length in the long fiber reinforced pellet of the present invention is substantially the same as the length of the pellet. That is, it is because the long fiber reinforced pellets are obtained by cutting the reinforcing strands obtained by drawing and forming the endless fiber bundle.

<Calcium stearate (B)> The calcium stearate externally added as the component (B) to the long fiber reinforced resin columnar body (A) constituting the original composition of the present invention is a stearin belonging to an organic acid. Calcium salts of acids, which are marketed under the name, are sufficient for ordinary purposes. In the present invention, the acid residue stearic acid is added to the basic compound "stearic acid" and its substitution product, for example, 12-hydroxystearic acid (also known as "12-
"Oxystearic acid") is also included and may be collectively referred to as "stearic acid", and accordingly, a calcium salt of "stearic acid" is referred to as "calcium stearate".
May be collectively referred to as.

This 12-hydroxy (substituted) calcium stearate is an excellent lubricant for reducing the motor load even when kneading, extruding, or injecting a screw of a polyolefin crystalline resin or the like, and at the same time, it is a highly crystalline polyolefin string. In this, the function of extremely effectively suppressing yarn breakage is exhibited.

<External Addition> In the procedure “external addition” (also known as “post-addition”) adopted to prepare the long fiber reinforced polyolefin resin composition of the present invention, the long fiber reinforced polyolefin resin columnar body (A1) must be used. And calcium stearate
It is necessary to prepare (B) separately and then mix both. If calcium stearate (B) is added at the same time as the base resin (A1) and the long fiber reinforced material (A2) in the preparation of the long fiber reinforced resin columnar material (A), the desired effect of the present invention is obtained. It can be seen from the comparative example that a situation in which is hardly expressed is encountered. In addition, the “external addition” in the present invention is a concept completely different from the so-called “external addition”.

<Ratio of Components Constituting Origin Composition> In order to prepare the origin composition (composition of long fiber reinforced polyolefin resin columnar body and calcium stearate) of the present invention, each component is in the following ratio. Are mixed (mixed). Here, only calcium stearate (B) is as follows
It is necessary to add in "step": [First step] Polyolefin crystalline resin which is a base resin
(A1) (Usually various necessary stabilizers such as processing stabilizers,
Antioxidant such as antioxidant is added) 90-2
0% by weight, preferably 80-40% by weight and long fiber reinforcement
(A2) 10 to 80% by weight, preferably 20 to 60% by weight
A long fiber reinforced resin columnar body (A) containing [(A1) + (A2) = 100% by weight] is prepared, and [second step] relative to the weight of the above long fiber reinforced resin columnar body (A). 0.0015 to 0.15% by weight, preferably 0.0
08 to 0.12% by weight, more preferably 0.02 to 0.0
Externally add 8% by weight of calcium stearate (B).

<Production Method of Long Fiber Reinforced Resin Columnar Body (A)> In the process of producing the long fiber reinforced resin composition of the present invention, poly (-α-) olefin crystalline resin as a base resin is used.
(A1) alone (usually processing stabilizer, oxidation stabilizer, molding aid and other additives are already blended) Melting (melting) kneading means For example, charging into a screw extruder, the base resin (A1) Melting and kneading is performed at a melting point of at least 200 ° C., usually 200 to 280 ° C. to shift to a flowable state, and then the fiber is impregnated into a spreader impregnating apparatus (sometimes abbreviated as “impregnation die”) at a predetermined speed.

This fiber-spreading impregnation device is provided with a molten resin reservoir, a roving introducing hole (introducing port) formed in an upstream boundary wall or an upstream ceiling plate, and is provided in a downstream boundary wall. The device is equipped with a shaping nozzle, and two or more opening pins (fixed so that they do not rotate regardless of movement of long fibers) or opening rolls (spontaneous or It is rotatably attached to both walls so as to be connected to the both walls in a serial manner toward the downstream side and in a state of bridging the left and right walls. In addition, the opening pins or the opening rolls may be mounted in two or more upper and lower stages with a predetermined gap or the like.

In the above fiber-spreading impregnation apparatus, the long fiber reinforcing material bundle (A2) is usually introduced into the molten resin as roving, and the fiber is spread around the fiber opening pins or fiber opening rolls in a zigzag pattern.
As a result of performing opening and impregnation by passing the middle of two opening pins installed at a predetermined interval in the upper and lower two steps without contacting either of them, from the long fiber reinforcing material bundle. A long fiber reinforced resin composition in which 10 to 80% by weight of the long fibers (composition basis) separated by the opening are dispersed in 90 to 20% by weight of the base resin (A1) while being aligned substantially in parallel. The product can be obtained in the form of columns, which are usually strands or cuts thereof.

That is, the content ratio of the base resin (A1) and the long fiber reinforcing material (A2) in the above long fiber reinforced resin composition is different from that in the conventional reinforced composition, and the fiber opening impregnation treatment is performed. It is a target value that should be realized in the reinforcing composition obtained through.

<Hybrid composition of the present invention and method for producing the same> The hybrid composition of the present invention is obtained by separately using 100% by weight (pbw) of the starting composition of the present invention as a masterbatch and crystallinity of polyolefin. It is a composition containing 100 to 700 parts by weight, preferably 170 to 450 parts by weight, of a resin.
The polyolefin crystalline resin blended here may be the same as the polyolefin crystalline resin which is the base resin of the original composition, or may be another foreign substance. The resulting hybrid composition may have a wide range of changes in the apparent melt viscosity of the original composition.

That is, the melt viscosity range of the hybrid composition can be increased or modified over that of the base resin that can be used to make the original composition. The means is required to appropriately select the melt viscosity of the polyolefin crystalline resin to be blended, the blending ratio, the compatibility with the base resin, and the like. In particular, the base resin of the blow molding (hollow molding) composition is preferably a high melt viscosity (high viscoelasticity) product. However, in order to effectively disperse an additive that increases the apparent melt viscosity of a composition such as a fiber reinforcement in the resin phase, it is necessary to keep the melt viscosity of the base resin low.

In order to satisfy these originally contradictory requirements, the original composition is prepared by making the base resin before compounding the fiber reinforcement a low viscosity resin, and then another resin having a different melt viscosity range is prepared. Can be blended to increase the melt viscosity, or various modification measures can be taken such as changing the shrinkage rate after molding.

The following two modifications can be mentioned as modifications of the method for producing the hybrid composition of the present invention: ◆ Modification-1: long-fiber reinforcing material and polyolefin crystalline resin as a base material A mixed composition in which calcium stearate is externally added to a masterbatch containing at least and (a reinforcing resin is opened and impregnated in a molten base resin), and the remaining polyolefin crystalline resin is added thereto. To make. ◆ Variation 2: By externally adding calcium stearate to the original composition in which the remaining polyolefin crystalline resin is added to the masterbatch containing at least the long-fiber reinforcing material and the polyolefin crystalline resin as the base material. , Making a hybrid composition.

<Applied Molded Article of the Present Invention and Molding Method> If the long fiber-reinforced columnar body of the present invention to which calcium stearate is externally added (post-added) is used, various melt molding methods such as injection molding method, Molded products obtained by extrusion molding method, compression molding method, blow molding method (hollow molding method), etc. are excellent in various physical properties, especially mechanical properties such as bending strength, bending elastic modulus, tensile strength, impact resistance and thermal properties. Properties such as excellent heat distortion temperature and extremely few voids (voids) can be combined. In addition, in the molding process of the above-mentioned applied molded product, good penetration of the molding material into the molding machine and a significant reduction rate of the plasticization time are realized.

By using the composition of the present invention, it is possible to obtain a product excellent in high strength, dimensional accuracy, heat resistance and especially heat distortion temperature in a very wide range of fields. Examples of such high-strength products include bumpers for automobiles, side moldings or side protectors, and instrument panels, front dashboards, steering wheels, console boxes (cases), rear windows as high-dimensional precision or heat-resistant molded products. High heat-resistant duct materials for cowls and automobiles, etc. can be mentioned. For household appliances, for example, outer panels of washing machines, washing tubs, centrifugal dehydration baskets, outer panels of laundry dryers, rotating baskets, dishwashers. The outer plate and other parts can be mentioned. Among them,
This highly heat-resistant duct made of the composition of the present invention connects, for example, a connecting pipe between an engine radiator of an automobile or the like and a coolant storage tank or a radiator for heating the interior of the vehicle and an engine radiator or the like as a heat source. Suitable for hot water supply pipes.

[0028]

[Effects of the Invention] The composition of the present invention and the calcium stearate, which is a lubricant for preparing the composition, are compounded by an external addition method to obtain the following various effects: (1) Injection molding machine Improved biteability of raw material composition, (2)
By significantly shortening the plasticization time in the injection molding machine (improving the measurement stability), (3) the addition amount of calcium stearate can be postponed until the final blending stage,
The amount of the lubricant added can be determined by checking the compatibility between the resin and the long fibers, and (4) the resulting injection-molded product has a low void ratio and high bending strength.

[0029]

EXAMPLES The present invention will be described in detail below based on examples and with reference to useful comparative examples in some cases. However, the present invention is not limited to these.

<Test Method> (1) Penetrability (also known as shortening ratio of plasticizing time): The penetrability of the resin into the molding machine was evaluated by the plasticizing time. The shorter the plasticizing time, the more difficult the bridge is formed at the hopper outlet of the extruder (the inlet to the extruder), and as a result, the erodibility of the resin is improved. Here, the biting property of the resin is a value represented by the following relational expression. If the calculated value is 25 or more, the void ratio in the molded product is small, and no deterioration in physical properties is observed at all: Plasticization time reduction rate (%) = 100 x [(plasticization time without addition of lubricant) -(Plasticization time with addition of lubricant)] / (Plastification time without addition of lubricant). (2) Void ratio Measured according to JIS K7053. If this value is 2% or less, no deterioration of physical properties is observed in the molded product. (3) Bending strength Measured according to JIS K7053.

[0031]

Example 1 As a base resin mixture (A1), 99.4% by weight of unmodified polypropylene crystalline resin powder, and 0.5% by weight of maleic anhydride as an unsaturated acid derivative as a modifier,
An organic peroxide consisting of 0.1% by weight of 1,3-bis (t-butylperoxyisopropyl) benzene was prepared, and this was charged into a Henschel mixer (trade name) and mixed with stirring.

The base resin mixture (A1) thus obtained was melt-kneaded while being supplied from a supply port of a screw extruder (200
(° C), the kneaded product was extruded, water-cooled, and then shredded with a strand cutter to granulate (pelletize). The obtained maleic anhydride-modified polypropylene crystalline resin (abbreviation "M-PP") had a MFR (230 ° C; 21.2N) of 130.
It was g / 10 min and the graft ratio of the modifier was 0.3% by weight.

Next, the modified polypropylene crystalline resin was quantitatively supplied into the machine from a supply port provided on the upstream side of a screw extruder (diameter 150 mm), melted and kneaded while sucking from the vent, and then extruded. It was continuously fed into an impregnation die (opening impregnation device) mounted at the downstream end of the barrel.

In this impregnation die, four cylindrical opening pins (diameter 10 mm) are installed in the left and right side walls of the impregnation die so as to bridge them substantially perpendicularly, and the line connecting their long axis ends is substantially It is a corrugated type (the height difference between the apex and the bottom point of the corrugation is 30 mm), and the introduced rovings are spread and impregnated while making a zigzag pattern around each spreading pin surface.

On the other hand, while the roving of long glass fibers (A2) is introduced into the impregnating die to open the fibers, the molten base resin (A1) is sufficiently impregnated between the opened single fibers to form a composite. To form the body and then convert this composite to its long glass fiber
The (A2) content was pulled out in a strand form from a shaping nozzle provided on the downstream side of the impregnating die so that the content was 40% by weight.
The long fiber reinforced strands that have been pulled out are water-cooled and then shredded with a strand cutter to form long fiber reinforced polypropylene columnar bodies.
(A) (average length 10 mm) was obtained.

Here, the long glass fiber roving is for polypropylene and its single fiber (filament) is used.
Average diameter of 17 μm, number of single fiber bundles about 4000, T
The EX number 2310 was used.

Obtained long-fiber-reinforced polypropylene columnar body
Calcium stearate (B) 0.0 based on the weight of (A)
A long-fiber-reinforced polypropylene composition (abbreviated as "origin composition") was prepared by charging a mixture to which 03% by weight was externally added (post-added) into a tumbler mixer and uniformly mixing by shaking.

The obtained source composition was supplied to a supply port of an injection molding machine to form a square plate (100 mm in length × 10 mm in width ×) as a test piece.
4 mm thick) was molded. After the test piece was conditioned at 23 ° C. for 48 hours, its void ratio and bending strength were measured. The plasticization time of the final composition was also measured during injection molding. Table 1 shows the measurement results.

[0039]

Examples 2 to 6 and Comparative Examples 1 to 13 Embodiments in which calcium stearate (B) used as the fatty acid metal salt in Example 1 is used in a different amount, and it is changed to calcium 12-hydroxystearate. And / or formulation modes in which it is changed to another type of fatty acid metal salt are listed below by experimental examples. Table 1 shows the results such as the plasticization time reduction rate when melt-kneading the origin composition of each formulation and the physical property measurement of the molded product using the origin composition pellets. Example 2 0.01% by weight of calcium stearate. Example 3 Calcium stearate 0.03% by weight. Example 4 Calcium stearate 0.06% by weight. Example 5 Calcium stearate 0.1% by weight. Example 6 Calcium 12-hydroxystearate
03% by weight. <Comparative Example 1> No fatty acid salt was added. Comparative Example 2 Calcium stearate 0.0008% by weight. Comparative Example 3 Calcium stearate 0.18% by weight. Comparative Example 4 Aluminum stearate 0.03% by weight. Comparative Example 5 Zinc stearate 0.03% by weight. Comparative Example 6 Barium stearate 0.03% by weight. Comparative Example 7 Magnesium stearate 0.03% by weight. Comparative Example 8 Lead stearate 0.03% by weight. Comparative Example 9 Lithium stearate 0.03% by weight. Comparative Example 10 Calcium montanate 0.03% by weight. Comparative Example 11 Calcium behenate 0.03% by weight. <Comparative Example 12> Calcium laurate 0.03% by weight. Comparative Example 13 Calcium palmitate 0.03% by weight.

[0040]

Comparative Example 14 The same modified polypropylene (resin) as in Example 1 (99.95% by weight) and calcium stearate
(B) 0.05% by weight was internally mixed (premixed) uniformly with a tumbler to quantitatively supply an internal additive obtained through a supply port of an extruder while melt kneading while sucking from a vent, This melt-kneaded product was continuously supplied into an impregnating die mounted at the downstream end of the barrel of the extruder.

On the other hand, a composite of long glass fiber and resin in which the above resin is sufficiently impregnated between the constituent fibers of the glass roving (A2) is pulled out (drawn) from the shaping nozzle.
A long fiber-reinforced strand (A) having a long fiber content of 40% by weight was produced. This long fiber reinforced strand is cut with a strand cutter to obtain a long fiber reinforced columnar body (A) (average length 10 mm)
I got The glass roving used here had a single fiber average diameter of 17 μm; the number of bundles was 4000; Tex count 2310.

The long fiber reinforced columnar body (A) thus obtained was subjected to an injection molding machine to give a test piece (100 mm long × 10 mm wide × 4 mm thick).
After molding and conditioning it (23 ° C; 48h),
The rate of shortening of the plasticizing time in the injection molding machine was measured together with the void rate and the bending strength. Table 1 shows the results.

[0043]

Comparative Example 15 The same operation as in Comparative Example 14 was carried out except that the amount of calcium stearate (B) added internally in Comparative Example 14 was changed to 0.1% by weight. Table 1 shows the results.

[0044]

[Table 1]

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Office reference number FI Technical display location C08K 7/14 KFT C08K 7/14 KFT C08L 23/26 LBZ C08L 23/26 LBZ

Claims (6)

[Claims] 1. An average of 90 to 20% by weight of a polyolefin resin, which is a base resin, and 10 to 80% by weight of a long fiber reinforcing material, wherein the long fiber reinforcing material is aligned substantially in parallel. A long fiber reinforced polyolefin crystalline resin columnar product having a length of 3 to 50 mm, and the weight of the columnar product was 0.0.
Origin composition with externally added 015-0.15% by weight of calcium stearate. 2. The original composition according to claim 1, wherein the externally added amount of calcium stearate is 0.008 to 0.12% by weight based on the weight of the long fiber reinforced polyolefin crystalline resin columnar material. 3. The original composition according to claim 1, wherein the externally added amount of calcium stearate is 0.02 to 0.08% by weight based on the weight of the long fiber reinforced polyolefin crystalline resin columnar product. 4. The polyolefin crystalline resin as the base resin is at least one selected from propylene crystalline homopolymer, propylene-α-olefin crystalline copolymer resin and α-olefin crystalline homopolymer. Origin composition according to any of claims 1 to 3. 5. An average of 90 to 20% by weight of a polyolefin resin, which is a base resin, and 10 to 80% by weight of a long fiber reinforcing material, wherein the long fiber reinforcing material is aligned substantially in parallel. A long fiber reinforced polyolefin crystalline resin columnar product having a length of 3 to 50 mm, and the weight of the columnar product was 0.0.
At least the original composition externally added with 015 to 0.15% by weight of calcium stearate, and 100 to 700 parts by weight of a polyolefin crystalline resin which may be a foreign substance different from the base resin with respect to 100 parts by weight thereof. A formed hybrid composition. 6. An average length of 3 consisting of 90 to 20% by weight of a polyolefin resin as a base resin and 10 to 80% by weight of a long fiber reinforcing material, wherein the reinforcing material is aligned substantially in parallel. ˜50 mm long fiber reinforced polyolefin crystalline resin pillars, 0.0015 relative to the weight of the pillars.
To 0.15% by weight of calcium stearate externally added, or 100% to 700 parts by weight of a polyolefin crystalline resin, which may be a foreign substance other than the base resin with respect to 100 parts by weight of the original composition. The hybrid composition formed at least with a part is selected from an injection molding method, an extrusion molding method, a compression molding method and a blow molding method (hollow molding method).
A molded product shaped by more than one molding method.