JPH083014B2 - Glass fiber reinforced vinyl chloride resin composition and molded article - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a glass fiber reinforced vinyl chloride resin composition and a molded product, which are capable of obtaining a molded product that is tough and has a good surface.

(Prior Art) A vinyl chloride resin molded article is inexpensive and excellent in weather resistance, chemical resistance, and flame retardancy, but has drawbacks in mechanical strength and heat resistance. It is known to mix glass fibers for the purpose of improving the mechanical strength and heat resistance of a vinyl chloride resin molded product.

However, the vinyl chloride resin and the glass fiber have low affinity with each other, and the adhesiveness at the interface between them is weak. Therefore, the reinforcing effect of glass fiber is not fully exhibited. Further, there is also a problem that the glass fibers stand out on the surface of the molded product and impair the appearance. To remedy these drawbacks, glass fibers treated with silane coupling agents are commonly used.

(Problems to be Solved by the Invention) However, even with such a method, a sufficiently satisfactory glass fiber reinforced vinyl chloride resin molding cannot be obtained. In particular, the molded body does not have sufficient impact strength. Further, when the obtained sheet-shaped molded product is used as a so-called stampable sheet, and this is heated and melted and then pressed in a mold to mold a deformed molded product, the surface property of this molded product deteriorates. .

The present invention is to solve the above problems, and an object of the present invention is to provide a glass fiber reinforced vinyl chloride resin composition and a molded product which are excellent in moldability and can be molded into a molded product having a tough and excellent appearance. To provide.

(Means for Solving the Problems) The glass fiber reinforced vinyl chloride resin composition of the present invention contains 5 to 70 parts by weight of glass fiber with respect to 100 parts by weight of a matrix resin containing a vinyl chloride type resin as a main component. In the glass fiber reinforced vinyl chloride resin composition consisting of, the matrix resin, with respect to 100 parts by weight of the vinyl chloride resin, 0.1 to 30 parts by weight of a polymer containing glycidyl methacrylate as a main component, and one or more carboxyl groups. 0.1 to 50 parts by weight of a diene liquid rubber having, and 0.0001 to 0.5 parts by weight of an amine reaction accelerator that accelerates the reaction between the glycidyl group of the polymer and the carboxyl group of the liquid rubber. .

The glass fiber reinforced vinyl chloride resin molding of the present invention is formed by heating and melting the above composition. Another glass fiber reinforced vinyl chloride resin molding of the present invention is
The above composition is heated and melted to be molded into a sheet, and the sheet-shaped molded product is heated and melted and press-molded into an irregular shape.

In the present invention, as the vinyl chloride-based resin used to form the matrix resin, a vinyl chloride homopolymer obtained by bulk polymerization, suspension polymerization, emulsion polymerization or the like, and vinyl chloride and a monomer copolymerizable therewith Examples thereof include copolymers with vinyl acetate, vinylidene chloride, ethylene, propylene, acrylic acid ester, and methacrylic acid ester. Further, post-chlorinated products of these homopolymers and copolymers are also used.

The polymerization degree of the vinyl chloride resin is preferably in the range of 200 to 2500 on average. If the average degree of polymerization is low, good physical properties cannot be obtained, and conversely, if the average degree of polymerization is high, the viscosity at the melting temperature becomes high and molding becomes difficult.

As the glass fiber blended in the matrix resin, all the glass fibers used for reinforcing the plastic can be used.
In order to obtain a sufficient reinforcing effect, glass fibers having a length of 3 mm or more and a filament diameter of 3 to 30 μm are preferably used. Usually, hundreds of filaments with a diameter of 5-30 μm
Thousands are used in the form of strands or rovings. Then, it is desirable that the filaments are opened in the molded body so that the resin is sufficiently impregnated between the filaments.

When the converged glass fibers are used, the amount of the sizing agent attached is preferably 1% by weight or less of the glass fibers, more preferably 0.5% by weight or less, from the viewpoint of openability. Also,
The glass fiber may be pretreated with a known silane coupling agent such as vinylsilane, substituted alkylsilane, or diaminoalkylsilane.

Such glass fiber is blended in a range of 5 to 70 parts by weight with respect to 100 parts by weight of a matrix resin containing vinyl chloride resin as a main component. When the amount of the glass fiber is less than 5 parts by weight, the reinforcing effect is insufficient, and when it exceeds 70 parts by weight, it becomes difficult to impregnate the glass fiber with the resin and the physical properties are deteriorated.

Further, as the polymer containing glycidyl methacrylate as a main component used for the constitution of the matrix resin, a homopolymer of glycidyl methacrylate, and a monomer copolymerizable with glycidyl methacrylate and this, for example, styrene, methyl methacrylate, acrylonitrile A copolymer having a number average molecular weight of 2000 to 20000 and an epoxy equivalent of 300 to 3000 is preferably used. The melting point of such a polymer is 160 ° C. or lower, preferably 120 ° C. or lower,
At the time of molding, it has lower viscosity than vinyl chloride resin,
It is preferable from the viewpoint of improving the wettability and adhesion with the glass fiber.

The polymer containing glycidyl methacrylate as a main component, by blending 0.1 to 30 parts by weight with respect to 100 parts by weight of the vinyl chloride resin, the adhesion between the vinyl chloride resin and the glass fiber is improved, for example, a sheet The mechanical strength of the shaped body and the shaped body formed by pressing the sheet-shaped body as a material are remarkably improved. If the amount of the polymer containing glycidyl methacrylate as the main component is less than 0.1 part by weight, there is almost no effect of improving mechanical strength, and conversely 30
If it exceeds the amount by weight, the weather resistance and flame retardancy deteriorate.

Further, the diene liquid rubber used for the constitution of the matrix resin is generally a diene liquid rubber which has fluidity at room temperature, and is usually 1500 poise (poi) at a temperature of 100 ° C or lower.
se) It has the following viscosity. Specific examples thereof include liquid polybutadiene, liquid polyisoprene, liquid polychloroprene rubber, liquid butyl rubber, liquid acrylonitrile-butadiene rubber and styrene-butadiene rubber having improved compatibility with vinyl chloride resin.

Among these diene liquid rubbers, those having one or more carboxyl groups between the molecules or at the molecular ends are used. In particular, a diene liquid rubber having carboxyl groups at both ends of the molecule is preferably used.

Such a diene liquid rubber is a vinyl chloride resin 10
0.1 to 50 parts by weight is blended with 0 parts by weight. If the amount of the diene liquid rubber is less than 0.1 parts by weight, the effect of the diene liquid rubber is unlikely to be exhibited, and conversely if the amount of the diene liquid rubber exceeds 50 parts by weight, the elasticity of the molded product will be extremely low, and the properties of vinyl chloride resin Is also impaired, especially in the case of a diene liquid rubber having poor compatibility with a vinyl chloride resin, this liquid rubber is unevenly distributed on the surface of the molded product or the interface with the glass fiber after molding,
The surface properties of the molded product, stain resistance, adhesion to glass fiber, and the like are deteriorated.

Further, in the present invention, an amine reaction accelerator is blended with the matrix resin. This amine-based reaction accelerator is a catalyst that accelerates the reaction between the glycidyl group of the polymer containing glycidyl methacrylate as a main component and the carboxyl group of the diene liquid rubber, and generally uses an epoxy resin as a curing agent for acid anhydride. The same known curing accelerators that are used when three-dimensionally curing a material are used.

Such amine-based reaction accelerators include benzyldimethylamine, 2- (dimethylaminomethyl) phenol (DMP-10), 2,4,6-tris (dimethylaminomethyl) phenol (DMP-30), 1, Tertiary amines such as 8-diazabiscyclo (5,4,0) undecene-1 (DBU) triethanolamine, dimethylpiperazine, pyridine, picoline are preferably used.

Further, a secondary amine such as piperidine or pyrrolidine, which produces a tertiary amine immediately after the start of the reaction, is also used. Further, imidazoles such as imidazole, 2-methylimidazole, 2-ethyl-4-methylimidazole and 2-methylimidazole are also used.

In the case of advancing the reaction in a short time, it is ideal that the amounts of these amine-based reaction accelerators are added in an equivalent amount necessary for the reaction between the glycidyl group of the polymer and the carboxyl group of the diene liquid rubber. . However, since the amine-based reaction accelerator acts as a catalyst, it is not always necessary to mix it in an equivalent amount. Since amines also have an action of accelerating the decomposition reaction of the vinyl chloride resin, adding more than necessary may impair the physical properties of the molded product.

In the present invention, in order to proceed the reaction at the molding temperature of the vinyl chloride resin (generally 180 to 220 ° C.), the amount of the diene liquid rubber having a carboxyl group-containing polymer and a polymer containing glycidyl methacrylate as the main component is adjusted. Considering this, the amine-based reaction accelerator is blended in the range of 0.0001 to 0.5 part by weight with respect to 100 parts by weight of the vinyl chloride resin.

In the present invention, the vulcanizing agent (crosslinking agent) for the diene liquid rubber described above and, if necessary, the vulcanization accelerator (crosslinking accelerator) may be blended. Examples of such a vulcanizing agent (crosslinking agent) include sulfur, organic peroxides, quinone dioximes, and the like.

Further, in the present invention, a compounding agent which is commonly used in molding and processing vinyl chloride resins, for example, an alkyl tin mercapto compound, an alkyl tin carboxylate, a metal soap, an epoxidized oil or ester, an aryl type or an alkyl type. Alternatively, a heat stabilizer such as an aryl / alkyl mixed phosphite is generally added.

Further, inner lubricants such as glycerin monoesters, diesters, triesters, higher alcohols, neutral or basic metal soaps; outer lubricants such as higher fatty acids, fatty acid esters, polyethylene wax, fatty acid amides, and silicone oils;
Antioxidants such as sterically hindered phenol or bisphenol; UV absorbers such as salicylate, benzophenone, benzotriazole, cyanoacrylate; pigments such as metal oxides and carbon black; plasticizers such as dioctyl phthalate and dicyclohexyl phthalate; Impact resistance modifiers such as ethylene-vinyl acetate copolymer, chlorinated polyethylene, acrylonitrile-butadiene-styrene, methacrylonitrile-butadiene-styrene; even if inorganic fillers such as calcium carbonate, talc and mica are blended Good.

Moreover, impact resistance of ethylene-vinyl acetate copolymer, chlorinated polyethylene, acrylonitrile-butadiene-styrene copolymer, methylmethacrylate-butadiene-styrene copolymer, acrylonitrile-butadiene copolymer, styrene-butadiene copolymer, etc. A small amount of a property modifier and a processability improver such as an acrylic acid or methacrylic acid-based copolymer may also be incorporated.

Hereinafter, the present invention will be specifically described with reference to the drawings.

FIG. 1 is an explanatory view showing an example of a method for manufacturing the glass fiber reinforced vinyl chloride resin molded product of the present invention. In FIG. 1, 10 is a press molding machine, and a press die is composed of an upper die 11 and a lower die 12. This press die can be heated by a heater or the like.

The glass fiber reinforced vinyl chloride resin composition 20 is put into the mold of the lower mold 12 and is heated and pressed under preset conditions to melt the resin and shape the composition 20 into a sheet, and then press The mold is transferred to another cooling press machine (not shown) and cooled. In this way, a sheet-shaped glass fiber reinforced vinyl chloride resin molded body is molded.

It should be noted that a cooling water passage may be provided in the press die to enable cooling. In that case, by switching heating to cooling, molding can be performed without transferring to another cooling press machine. Further, the shape of the molded body is not limited to the sheet shape, and various modified molded bodies can be obtained by changing the press die. It is also possible to use a thin press die for a flat plate as the press die of FIG. 1, put the composition therein, and press the die by sandwiching it between hot plates.

The above glass fiber reinforced vinyl chloride type resin composition 20,
For example, it can be manufactured by the following method. That is, a vinyl chloride resin and a polymer containing glycidyl methacrylate as a main component, a diene liquid rubber having a carboxyl group and an amine reaction accelerator, and other compounding agents except glass fiber are powdered with a super mixer or the like. It can be manufactured by mixing to make a matrix resin powder and uniformly mixing the matrix resin powder and the glass fiber roving previously cut into an appropriate length while opening in a fluidized bed or the like.

Further, the above glass fiber reinforced vinyl chloride resin composition
20 can also be manufactured by the method shown in FIG. That is, in FIG. 2, 30 is a glass fiber roving, 40 is a matrix resin powder containing vinyl chloride resin as a main component, and 50 is a fluidized bed in which the glass fiber roving 30 is impregnated with the matrix resin powder 40. The matrix resin powder 40 is fluidized in the fluidized bed 50 by a gas such as air ejected from below to above.

The glass fiber roving 30 is introduced into a matrix resin powder 40 which is fluidized in a fluidized bed 50. here,
The glass fiber roving 30 is a gas ejected into the fluidized bed 50, static electricity generated in the fluidized bed 50, and matrix resin powder.
Due to the rubbing and rubbing effect of 40, the filament is separated and separated into monofilament units, and the matrix resin powder 40 enters and adheres between the monofilaments of the glass fiber roving 30.

The glass fiber roving 30 to which the matrix resin powder 40 is attached has its attachment amount adjusted by adjusting the gap of the slit bar 60, and subsequently, the matrix resin powder 40 is thermocompression-bonded by the thermocompression-bonding roll 70, and then an appropriate amount. Cut to length with a cutter 80. In this way, the glass fiber reinforced vinyl chloride resin molded body 20 can be manufactured.

FIG. 3 is an explanatory view showing another example of the manufacturing method of the glass fiber reinforced vinyl chloride resin molding of the present invention. In FIG. 3, 90 is an infrared heating device, 110 is an upper die of the press die, and 120 is a lower die of the press die. Then, for example, the sheet-shaped molded body 21 molded by the method shown in FIG. 1 is used as a so-called stampable sheet, which is heated by the infrared heating device 90 to melt the resin, and then the upper die 110 of the press die. By press molding with the lower mold 120, for example, a deformed molded body as shown in FIG. 4 can be manufactured.

(Function) When the composition of the present invention is used, and the composition is heated and melted and molded, the polymer containing glycidyl methacrylate as a main component has a low viscosity and a good flow. A book that has excellent mechanical strength, durability, and surface properties as well as chemical properties such as affinity and adhesion between glass fiber and vinyl chloride resin have been improved, as well as flowability at the interface to improve wettability. The inventive moldings are obtained with good moldability.

Further, the glycidyl group of the polymer and the carboxyl group of the diene liquid rubber are rapidly and sufficiently reacted with the amine reaction accelerator to be integrated, and high adhesiveness is obtained at the interface between the glass fiber and the vinyl chloride resin. The molded article of the present invention having excellent impact energy absorption can be obtained with good moldability and productivity.

(Example) Hereinafter, the Example and comparative example of this invention are shown.

Example 1 Polyvinyl chloride resin (polymerization degree 540) 100 parts by weight Glycidyl methacrylate-methyl methacrylate copolymer (Blemmer CP 50M: NOF CORPORATION, number average molecular weight 6000, epoxy equivalent 310, melting point 100-110 ° C) 10 parts by weight Liquid NBR (acrylonitrile-butadiene rubber) (Hyc
ar CTBN 1300X31: Ube Industries, Ltd., number average molecular weight 3500, acrylonitrile content 10% by weight, molecular terminal carboxyl group, Brookfield viscosity 550 poise / 27 ° C) 1 part by weight-2,4,6-tris (dimethylaminomethyl) Phenol
0.002 parts by weight Dibutyltin maleate 3 parts by weight The above composition was mixed in a super mixer at a temperature of 100 ° C. for about 2 parts.
A matrix resin powder was prepared by mixing for 0 minutes. Also,
A glass fiber piece was prepared by cutting glass fiber roving (filament diameter 23 μm, sizing agent amount 0.3% by weight, count 4400tex) to a length of about 25 mm.

80% by weight of the above matrix resin powder and 20 pieces of glass fiber
The composition was manufactured by uniformly mixing the weight% with air in a fluidized bed by air and by hand while opening the filament unit.
This composition was placed in a flat plate press die as described in FIG. 1, the die was sandwiched between hot plates at 200 ° C. and heated for 5 minutes, and then heated and pressed at a surface pressure of 20 kg / cm ² for 2 minutes. Then, the mold was cooled while being pressed with a cooling press to produce a sheet-shaped molded body having a thickness of 3 mm.

Example 2 100 parts by weight of polyvinyl chloride resin (polymerization degree 400) Glycidyl methacrylate-styrene-acrylonitrile copolymer (Blenmer CP 20SA: NOF Corporation, number average molecular weight 3300, epoxy equivalent 750, melting point 110 ° C or less) 10 parts by weightLiquid NBR (Hycar CTBN 1300X8: Ube Industries, Ltd., number average molecular weight 3500, acrylonitrile content 17% by weight, molecular terminal carboxyl group, Brookfield viscosity 1250 poise / 2
7 ° C) 2 parts by weight-benzyldimethylamine 0.005 parts by weight-dibutyltin maleate 3 parts by weight The above composition was mixed in a supermixer at a temperature of 100 ° C for about 2 parts by weight.
A matrix resin powder was prepared by mixing for 0 minutes. The same procedure as in Example 1 was performed except that this matrix resin powder was used.

Example 3 Polyvinyl chloride resin (polymerization degree 540) 100 parts by weight Glycidyl methacrylate-styrene-acrylonitrile copolymer (Blenmer CP 20SA: NOF Corporation, number average molecular weight 3300, epoxy equivalent 750, melting point 110 ° C. or less) 5 parts by weight Liquid NBR (Hycar CTBN 1300X9: Ube Industries, Ltd., number average molecular weight 3500, acrylonitrile content 17% by weight, intermolecular and molecular terminal carboxyl groups, Brookfield viscosity 15
50 poise / 27 ° C) 5 parts by weight 1,8-diazabiscyclo (5,4,0) undecene-1.
005 parts by weight Dibutyltin maleate 3 parts by weight The above composition was mixed in a super mixer at a temperature of 100 ° C. for about 2 parts.
A matrix resin powder was prepared by mixing for 0 minutes. This matrix resin powder is fluidized in a fluidized bed, and glass fiber roving (filament diameter 23 μm, sizing agent adhesion amount
0.3 wt%, count 4400 tex) was dipped and passed through to allow the matrix resin powder to uniformly adhere between the filaments, and then cut to a length of about 25 mm to produce a composition. The procedure of Example 1 was repeated except that this composition was used.

Example 4 Polyvinyl chloride resin (polymerization degree 400) 100 parts by weight Glycidyl methacrylate-styrene-acrylonitrile copolymer (Blenmer CP 50MA: NOF Corporation, number average molecular weight 6000, epoxy equivalent 310, melting point 110 ° C. or less) 5 parts by weight Liquid NBR (Hycar CTBN 1300X13: Ube Industries, Ltd., number average molecular weight 3500, acrylonitrile content 27% by weight, molecular terminal carboxyl group, Brookfield viscosity 6250 poise / 2
7 ° C) 10 parts by weight 2-methylimidazole 0.01 parts by weight dibutyltin maleate 3 parts by weight The above compound was mixed in a supermixer at a temperature of 100 ° C for about 2 parts.
A matrix resin powder was prepared by mixing for 0 minutes. The procedure of Example 3 was repeated except that this matrix resin powder was used.

Example 5 The sheet-shaped molded body obtained in Example 1 was heated to about 200 ° C. by an infrared heating device as shown in FIG.
Put it into the deforming press die, and press this die with a surface pressure of 120 kg / cm.
^By pressurizing at ² , a deformed molded body as shown in FIG. 4 was manufactured.

Example 6 The sheet-shaped molded product obtained in Example 3 was processed in the same manner as in Example 5 to produce a modified molded product as shown in FIG.

Comparative Example 1-Polyvinyl chloride resin (polymerization degree 400) 100 parts by weight-Glycidyl methacrylate-styrene-acrylonitrile copolymer (Blenmer CP 50MA: NOF CORPORATION, number average molecular weight 6000, epoxy equivalent 310, melting point 110 ° C or less) 10 parts by weight Dibutyltin maleate 3 parts by weight The above composition was mixed in a super mixer at a temperature of 100 ° C. for about 2 parts.
A matrix resin powder was prepared by mixing for 0 minutes. The same procedure as in Example 1 was performed except that this matrix resin powder was used.

Comparative Example 2 Polyvinyl chloride resin (polymerization degree 600) 100 parts by weight Liquid BR (polybutadiene) (Hycar CTB 2000X162: Ube Industries, Ltd., number average molecular weight 4800, molecular terminal carboxyl group, Brookfield viscosity 400 poise / 27 ° C) ) 5 parts by weight Dibutyltin maleate 3 parts by weight The above composition was mixed in a super mixer at a temperature of 100 ° C. for about 2 parts.
A matrix resin powder was prepared by mixing for 0 minutes. The procedure of Example 3 was repeated except that this matrix resin powder was used.

Comparative Example 3 Using the sheet-shaped molded body obtained in Comparative Example 1, a modified molded body as shown in FIG. 4 was manufactured in the same manner as in Example 5.

Comparative Example 4 Using the sheet-shaped molded product obtained in Comparative Example 2, a modified molded product as shown in FIG. 4 was manufactured in the same manner as in Example 5.

Comparative Example 5 100 parts by weight of polyvinyl chloride resin (polymerization degree 540) 3 parts by weight of dibutyltin maleate The above composition was mixed in a super mixer at a temperature of 100 ° C. for about 2 parts.
A matrix resin powder was prepared by mixing for 0 minutes. The same procedure as in Example 1 was performed except that this matrix resin powder was used.

Comparative Example 6 Using the sheet-shaped molded body obtained in Comparative Example 5, a modified molded body as shown in FIG. 4 was manufactured in the same manner as in Example 5.

Each of the molded bodies obtained in Examples 1 to 7 and Comparative Examples 1 to 6 was subjected to the following tests (1) to (5) and observations.

(1) A test piece having a width of 20 mm and a length of 120 mm was cut out from the molded body, a load was applied to the center of the test piece which was freely supported with a span of 100 mm, and a bending test was performed to measure bending strength and bending elastic modulus.

(2) Izod impact test pieces were cut out from the molded article according to JIS-K7110 and subjected to Izod impact test.

(3) In the same bending test as in (1) above, the test piece was left in a state in which a bending displacement amount causing an initial stress of 6 kg / mm ² was applied, and the stress retention rate after 24 hours was measured.

(4) In the same bending test as in (1) above, the bending load that generates a stress of 6 kg / mm ^{2 on} the test piece should be 5 times.
After repeating 0 times, the state of the test piece was observed.

(5) The presence or absence of the protrusion of glass fiber on the surface of the molded body was visually observed.

The results of the tests and observations (1) to (5) above are summarized in Table 1. In addition, since the glass fibers on the surface of the molded body occur especially when a sheet-shaped molded body is used as a so-called stampable sheet and this is press-molded to manufacture a deformed molded body, the following test (5) is performed. Was carried out only for the molded article of odd shape.

(Effects of the Invention) Since the present invention is configured as described above, a sufficient reinforcing effect of glass fiber can be obtained without impairing the properties of vinyl chloride resin, excellent moldability, toughness and durability. It is possible to obtain a glass fiber reinforced vinyl chloride resin molded product having a good appearance.

In particular, when a sheet-shaped molded body is molded using the composition of the present invention and this sheet-shaped molded body is press-molded into a profile as a so-called stampable sheet, the moldability is good and the glass fiber on the surface is The present invention is preferably used for such molding because a molded product having a deformed shape with good appearance and no protrusion can be obtained.

[Brief description of drawings]

FIG. 1 is an explanatory view showing an example of a manufacturing method for the molded product of the present invention, FIG. 2 is an explanatory view showing an example of a manufacturing method of the composition of the present invention, and FIG. 3 is a molding of the present invention. Explanatory drawing which shows another example of the manufacturing method about the body, 4th
The figure is a perspective view of a modified shaped body molded by the method shown in FIG. 10 …… Press molding machine, 11 …… Upper die of press mold, 12 ……
Lower mold of press die, 20 …… composition, 30 …… glass fiber roving, 40 …… matrix resin powder, 50 …… fluidized bed,
60 …… slit bar, 70 …… thermocompression bonding roll, 80 …… cutter, 90 …… infrared heating device, 110 …… press die upper die, 120 …… press die lower die, 21 …… sheet shape Molded body, 22 .....

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Claims (3)

[Claims] 1. A glass fiber reinforced vinyl chloride resin composition comprising 5 to 70 parts by weight of glass fibers mixed with 100 parts by weight of a matrix resin containing a vinyl chloride resin as a main component. , 100 parts by weight of vinyl chloride resin, 0.1 to 30 parts by weight of a polymer containing glycidyl methacrylate as a main component, and 0.1 to 50 parts by weight of diene liquid rubber having one or more carboxyl groups,
A glass fiber reinforced vinyl chloride resin composition comprising 0.0001 to 0.5 part by weight of an amine reaction accelerator that accelerates the reaction between the glycidyl group of the polymer and the carboxyl group of the liquid rubber. 2. A glass fiber reinforced vinyl chloride resin molded product obtained by heating and melting the composition according to claim 1. 3. A glass fiber reinforced vinyl chloride type resin molded product obtained by heating and melting the composition according to claim 1 to form a sheet, and heating and melting the sheet-shaped molded product into a deformed shape.