JPS60501010A - Blends of polyetherimide and rubber-modified vinyl aromatic polymers - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] Polyetherimide and rubber modification Blends of vinyl aromatic polymers The present invention relates to polyetherimides and rubber-modified vinyl aromatic polymers, such as rubber A family of blends of modified styrene and copolymers of styrene. manufacture blends Polyethers can be made by using specific rubber-modified vinyl aromatic polymers. Compared to the properties of the imide component alone or the rubber-modified vinyl aromatic polymer alone. When one or more of the impact strength, heat deflection temperature, bending properties, and tensile properties of the blend are The above will be improved.

The blend of the present invention has the formula [In the formula, a is an integer greater than 1, for example 10 to 10,000 or more, and a group -0-A(ha R' R' is hydrogen, a lower alkyl group or a lower alkoxy group, preferably Alternatively, polyetherimide has the formula (2) -0-A of the latter where R' is hydrogen (the group is then The divalent group of -o-zo- group is 3,3':3, 4':4, 3' and 4 , 4′ position, and 2 is (1) and (2) general formula is one member selected from the group consisting of divalent groups, q is 0 or 1, and y is 1 to 1. is an integer of 5), and R is (1) the number of carbon atoms. Aromatic hydrocarbon group having 6 to 20 and its no-logenated derivative, (2) carbon Alkylene groups and cycloalkylene groups having 2 to 20 atoms, 02 to C8 atom lekylene-terminated polydiorganosiloxane, and formula (3) (X is an integer from 1 to 5) 2-side fabric group selected from the group consisting of valent groups).

Particularly preferred polyetherimides for the purposes of this invention are 10-A and 2-A. Each (4) A polyetherimide selected from polyester in which R is metaphenylene -tellimide is most preferred.

The rubber-modified vinyl aromatic polymer of the blends of the present invention has the structural formula (In the formula, R1 and R2 are hydrogen, a lower alkyl group having 1 to 6 carbon atoms, or a lower selected from the group consisting of alkenyl groups, R3 and R4 are hydrogen, halogen, e.g. Selected from the group consisting of chlorine or bromine, and lower alkyl groups having 1 to 6 carbon atoms and R5 and R6 are hydrogen, a lower alkyl group having 1 to 6 carbon atoms, and an alkyl group having 1 to 6 carbon atoms. selected from the group consisting of kenyl groups, or R5 and R6 are unsaturated hydrocarbis rings. Homopolymers derived from novinyl aromatic monomers (which may form structures) and/or copolymers.

Generally, the rubber-modified vinyl aromatic polymer contains at least 25% of the above vinyl aromatic monomers. %, preferably at least 50%. Vinyl aromatic monomer of the above formula Styrene, α-methylstyrene, t-butylstyrene, vinyltoluene, vinyl Nylxylene, ethylvinylbenzene, chlorostyrene, ethylvinyltoluene , isopropyltoluene and diethylvinylbenzene. preferred vinyl The aromatic monomer is styrene.

(5) Other monomers that can be copolymerized with the above vinyl aromatic monomer include (in the formula, R8 and R7 are Consisting of hydrogen, halogen, alkyl group having 1 to 4 carbon atoms, and carbalkoxy group or R7 and R8 together form an acid anhydride bond (-coo oc-), and R9 can also be hydrogen, a vinyl group, or an alkyl group having 1 to 12 carbon atoms. or alkenyl group, cycloalkyl group, carbalkoxy group, alkoxy-alkyl group, alkyl group, alkylcarboxy group, ketoxy group, halogen, carboxy group, sia or pyridyl group, n is O or an integer from 1 to 9) including. The copolymerizable monomers in the above formula include acrylonitrile and methacrylonitrile. Acrylic acid, methacrylic acid, maleic anhydride, vinyl chloride, vinylidene chloride , methyl methacrylate, ethyl acrylate, acrylamide, butadiene, Including Inbrene etc.

The above vinyl aromatic homopolymers or copolymers are suitable for the introduction of rubber or elastic materials. Therefore, it is denatured. Such introduction can be applied to homopolymer derivatives derived from vinyl aromatic monomers. polymers or copolymers or grafted or block copolymerized. This can be achieved by Suitable rubbers include 1°3-butadiene, isoprene , ethylene propylene as well as aliphatic conjugated diene polymers such as methyl isoprene. Contains ren copolymer and EPDM rubber.

(6) Preferred rubber-modified vinyl aromatic polymers for this invention include methyl methane of various qualities. Acrylate-butadiene-styrene (MBS), styrene-ethylene-butylene Ren-styrene, acrylonitrile-butadiene-styrene (ABS), and high impact polystyrene (H-PS) (approximately 3 to 10% by weight of polybutadiene). polystyrene) or styrene-butadiene copolymer.

Polyetherimide has the formula Any aromatic bis(ether acid anhydride) of (Z is as defined above) and the formula %formula% ( , R is as defined above) with an organic diamine, which is well known to those skilled in the art. Are known. It can be obtained by any method.

The aromatic bis(ether acid anhydride) of the above formula includes, for example, 2,2-bis(4-(2 ,3-dicarboxyphenoxy)phenyl)propanedic anhydride; 4, 4' -bis(2,3-dicarboxyphenoxy)diphenyl ether diacid anhydride; 1 ．． 3-bis(2,3-dicarboxyphenoxy)benzenedic anhydride: 4, 4'-bis(2,3-dicarboxyphenoxy)diphenylsulfite dodic acid Anhydride; 1,4-bis(2,3-dicarboxyphenoxy)benzenedic anhydride : 4,4'-bis(2,3-dicarboxyphenoxy)diphenylsulfone Diacid anhydride: 2,2-bis(4-(3゜4-dicarboxyphenoxy)phenyl ] Propanedic anhydride: 4,4'-bis(3,4-dicarboxyphenoxy ) diphenyl ether diacid anhydride; 4,4'-bis(3,4-dicarboxy phenoxy) diphenyl sulfide diacid anhydride: 1,3-bis(3,4-dica Ruboxyphenoxy)benzenedic anhydride; 1,4-bis(3,4-dicarboxylic anhydride) cyphenoxy)benzenedic acid anhydride; 414'-bis(3゜4-dicarboxy phenoxy)penzophenone diacid anhydride; 4-(2,3-dicarboxyphenoxy) c)-4-(3,4-dicarboxyphenoxy)diphenyl-2,2-7'lopa and mixtures of such dianhydrides.

Further, the aromatic bis(ether acid anhydride) contained by the above formula is an -ah codon, M, M; Florinsky, F, Nis; Besonov, M, I; Ruda Koff, nee.

P, (Institute of Heteroorganics Compounds, Akade My Opu Science, USSR), filed on May 3, 1967, 1969 It is also shown in USSR Patent No. 257010 dated November 11, 2013. Furthermore, diacid anhydride Zh, Org, Knin, 4(5), 774 (1968), M, E. Shown by Mu, Codon, F, Nis, Florinsky.

Examples of the organic diamine of the above formula include m-phenylenethia (8) gin, p-phenylenediamine, 4.4'-diaminodiphenylpropane, 4. 4'-diaminodiphenylmethane, pentedine, 4,4'-diaminodipheny Rusulfide, 4゜4'-diaminodiphenylsulfone, 4,4'-diamino diphenyl ether, 1,5-diaminonaphthalene, 3,3'-dimethyl pentyl Zine, 3,3'-dimethoxybenzidine, 2゜4-bis(β-amino-t-butylene) ) toluene, bis(p-β-amino-t-butylphenyl)ether, bis( p-β-methyl-〇-aminopentyl)benzene, 1,3-diamino-4-yne Furobylbenzene, 1,2-bis(3-aminopropoxy)ethane, m-xylene diamine, p-xylene diamine, 2,4-diaminotoluene, 2,6-dia Minotoluene, bis(4-aminocyclohexyl)methane, 3-methylhebutame Tylendiamine, 4,4-dimethylhebutamethylenediamine, 2,11-dodeca diamine, 2,2-dimethylpropylene diamine, octamethylene diamine, 3-methoxyhexamethylenediamine, 2゜5-dimethylhexamethylenediamine 2,5-dimethyl hebutamethylene diamine, 3-methyl hebutamethylene diamine amine, 5-methylnonamethylenediamine, 1,4-cyclohexanediamine, l ,12-,? Phthadecanediamine, bis(3-aminopropyl) sulfide, N-methyl-bis(3-aminopropyl)amine, hexamethylenediamine, Putamethylene diamine, nonamethylene diamine, decamethylene diamine, bis( 3-aminopropyl)tetra(9) Methyldisiloxane, bis(4-aminobutyl)tetramethyldisiloxane, etc. Contains.

Generally, the reaction is carried out between a dianhydride and a diamine at a temperature of about 100 to about 250°C. In order to carry out the interaction of - This can be advantageously carried out using cresol/toluene or the like. Or Polie -Tellimide can be added to any of the above-mentioned dilutions while simultaneously mixing and heating the mixture of each component at high temperature. It can be produced by melt polymerization of an acid anhydride and any of the diamines mentioned above. Generally about Melt polymerization temperatures of 200-400°C, preferably 230-300°C can be used.

The reaction conditions and proportions of each component depend on the desired molecular weight, intrinsic viscosity, and solvent resistance. Can vary widely. Generally, for high molecular weight polyetherimides, diamine Use equimolar amounts of dianhydride and dianhydride; however, in some cases a slight excess may be used. mol (approximately 1 to 5 mol) of diamine to form a polyether with terminal amine groups. It can also cause the formation of limide. Commonly useful polyetherimides are 0.2 dllf when measured in m-cresol at 25°C, preferably 0.35-0.60 dl,/t or 0.7 di/t or greater It has an intrinsic viscosity [η] of

The rubber-modified vinyl aromatic polymers used in the blends of the present invention are well known to those skilled in the art. It can be made using any method. For example, acrylonitrile-butadiene - Styrene or Acrylonimetered Rubtagene - Methylstyrene type (10) The method for producing the type polymer is as follows: 3 parts soap, 17 parts mercaptan or and 58 parts of polybutadiene in the presence of 0.4 parts of potassium peroxydisulfate. 73 parts styrene and 43 parts acrylic on polybutadiene latex with It consists of grafting a nitrile. Let the latex coagulate, then the product Knead for 10 minutes under 320°C. Other useful methods of producing these polymers are National Patent No. 2505349, No. 2550139, No. 2698313: British Patent No. No. 698385: U.S. Patent Nos. 2,713,566, 2,820,773 and No. 2,908,661, which are incorporated herein by reference.

Many more of these polymers are commercially available.

According to the present invention, a blend of polyetherimide and rubber-modified vinyl aromatic polymer In general, the two polymers can be obtained in any proportion to each other. Therefore poly from about 1% to about 99% by weight of etherimide and from about 99% to about 99% by weight of rubber-modified vinyl aromatic polymer. Blends consisting of 1% by weight are within the scope of this invention. mutually polyetherimide and polyetherimide component or polymerization by controlling the proportion of polymers. Easy to blend with predetermined properties that are better than those of the individual substances can be obtained. In general, the blends of the present invention are made from the individual ingredients used to make the blend. Rubber-modified vinyl aromatic polymers can be used to convert polyetherimide or polymer component Improved impact strength, bending properties and tensile properties when compared to German properties indicates one or more properties of General (11) Reference number Sho GO-501010 (5), The more the rubber-modified vinyl aromatic polymer is added, the greater the elastic behavior will be. The general trend towards blends of polyetherimides with improved impact strength Have strength. On the other hand, the elastic behavior exhibited by rubber-modified vinyl aromatic polymers is low. The more the blend is compared to the rubber-modified vinyl aromatic polymer alone, the more It has improved bending and tensile properties.

Blends of the invention may also contain fillers, stabilizers, plasticizers, softeners, surfactants, in conventional amounts. It may also contain additives such as additives, pigments, dyes, reinforcing agents, flame retardants and diluents. intended.

The blends of the present invention also include one or more polyetherimides and two or more rubber-modified vinyls. Nyl aromatic polymer, two or more types of polyetherimide in combination with one or more types of polyetherimide It may also contain a rubber-modified vinyl aromatic polymer.

The method for forming the blend can vary widely. Mixture of conventional technology Legal is generally satisfactory. The preferred method is to use powder, particle or filament form. The polymer is mixed with additives such as tougheners, the blend is extruded, and the extrudate is cut. to the means traditionally used to mold ordinary solid thermoplastic resin compositions. Therefore, it consists of making pellets suitable for molding.

The blends of the present invention can be used in a variety of applications, including as films, molding mixtures, coatings, etc. Has a use in physical form. When used as a film or molded product When these blends, including the laminates made from them, at room temperature (12) Not only have good physical properties, they are also resistant to working loads at high temperatures for long periods of time. maintains excellent response and strength to Fibers formed from the blends of the invention The film can be used in applications for which films have traditionally been used. For example, the present invention Blends are used in automobiles and aircraft for decorative and protective purposes, and in motors. slot liners, transformers, dielectric capacitors, cable and coil packaging (motor As a high-temperature electrical insulation for the nozzle (forming the dielectric material of the winding coil of the nozzle of the motor), and containers and container linings. The blend also Blend films or solutions of various materials such as asbestos, mica, glass fiber, etc. applied to heat-resistant or other types of materials, stacking the sheets on top of each other and then exposing the sheets to high temperatures and high pressure to cause the resin binder to flow and harden to adhere the laminated structure. It can also be used for laminated structures. Films made from the blends of the invention are It can also be used for printed circuits.

Alternatively, solutions of the blends shown here can be applied onto conductive materials such as copper, aluminum, etc. The coated conductor is then heated at high temperature to remove the solvent and a continuous tree is applied over it. A fat composition can be provided. Polyamide, polyester, Silicone, polyvinyl formal resin, epoxy resin, poly1″mide, polyde Insulated conductive overcoats including the use of trafluoroelene etc. It may also be applied to the body. Blends of the invention as overcoats over other types of insulation This does not preclude the use of codes.

(13) Other intended uses for these blends include in making brake linings. Application as a binder for asbestos fibers, carbon fibers and other fibrous materials including. Furthermore, asbestos, glass fiber, talc, quartz powder, and particulate carbon are removed before molding. Molding compositions or can form molded articles.

The molded article can be heated or heated and indented by methods well known to those skilled in the art. Ru.

The following examples illustrate special polyetherimide-rubber modified vinyl aromatic polymers according to the invention. Indicates a coalesced blend. The Examples are given by way of illustration only and are not intended to limit the invention. You should understand that this is not the case. Examples of raw metal parts and percentages Unless otherwise specified, by weight.

Example 1 Polyetherimide and methyl methacrylate-butadiene according to the invention The friend produced by Chyrene Blendra is molded into a test piece, and the test piece is tested for various physical properties. was tested.

The blended polyetherimide is heated at about 250 to about 300°C under a nitrogen atmosphere. 2,2-bisC4-<3,4-dicarbohydrate in qualitatively equimolar amounts Reaction of xyphenoxy)phenyl]propanedic acid anhydride and m-phenylenediamine made from reaction products. The polymer was extruded at approximately 30°C to form strands, and then It was mechanically cut into pellets. Test specimens molded from pellets were tested with various properties. Regarding quality (14) The results of these tests are shown at the top of Table I.

Approximately 95 parts of the above polyetherimide was transferred to Borda Warner Corporation. Methyl methacrylate-Butaje, which is marketed under the trade name BTA II N - Styrene (hereinafter referred to as MBS+). Blend of two polymers then a die temperature of about 310°C and a temperature profile varying from about 310 to 329°C. Extrusion was carried out in a 28 m ZEIK twin screw extruder with a filter. formed The extrudate was cut into pellets and the pellets were tested in a molded manner at a temperature of approximately 321°C. The specimen was injection molded. The specimens are opaque and have good surface quality and appearance. It was a phase system. The impact strength of these specimens was evaluated for unnotched and notched Izo The results are shown in Table I. Heat deflection temperature, bending properties, and Tension properties were also measured and are shown in Table 1.

According to the invention, about 90 parts of polyetherimide are mixed with about 10 parts of MBS. The method of Example I was repeated except that a blend was made. About blend specimens Not only the results of notched and unnotched Izot impact tests, but also the heat deflection temperature. The properties and tensile strength are shown in Table I.

Example ■ According to the invention, about 85 parts of polyetherimide are mixed with about 15 parts of MBB I. The method of Example I was repeated except that a blend was made. Regarding the blend test piece Notched and non-notched Izod impact test results showed no damage and no heat deflection. The temperature, bending properties, and tensile properties are shown in Table ■.

(16) (17) As is clear from the above experimental results, a blend of polyetherimide and JBEI I polyester as evidenced by the notched and unnotched Izod impact values. It has improved impact strength over a single tellimide component. And Blend is the firstborn Exhibits tensile, bending and heat flexibility.

Example ■ Polyetherimide and methyl methacrylate-butadiene according to the invention Create a blend of tyrene, mold the plain into a test piece, and test the test piece with various physical properties. I tested the quality once.

A polyetherimide having the physical properties shown in Table 1 was produced by the method of Example 1. Approximately 95 copies were sold to Borg Ken Warner Corporation. Product name: B, TA 1. methyl methacrylate-butadiene-styrene, commercially available as (referred to as (1)). The mixture of the two polymers was then heated to about 310°C. The ZSK twin-axis shaft has a temperature profile of approximately 310-329°C. Extruded using clew extrusion. The formed extrudate was cut into pellets and the red Test specimens were injection molded at a temperature of 22°C. The molded scissors are opaque and have a good surface finish. It was a one-phase system with good quality and appearance. The impact strength of these test pieces was determined by The results are shown in Table ①. Blend testing The heat deflection temperature, glass transition temperature, bending properties, and tensile properties of the pieces were also measured, and Table ■ Nisu.

(18) According to the invention, 90 parts of polyetherimide are mixed with about 1.0 parts of MBS n. The method of Example 2 was repeated except that a blend was made. About blend specimens Notched and unnotched Izod impact test results as well as heat deflection temperatures , bending properties, and tensile properties are shown in Table ■.

Example ■ According to the invention, about 85 parts of polyetherimide are mixed with about 15 parts of MBS It. The procedure of Example 2 was repeated except that a blend was made. Regarding the blend test piece Not only the results of notched and non-notched isot impact tests but also the heat deflection temperature. Table 3 shows the bending properties, bending properties, and tensile properties.

(20) As is clear from the above experimental results, the blend of polyetherimide and MBSIt is , polyetherimide alone was also improved as evidenced by Izotsu impact strength. It has high impact strength and good tensile, bending and heat deflection properties.

Example ■ Polyetherimide and acrylonitrile-butadiene-styrene according to the invention The blend was made into a specimen, the blend was formed into a specimen, and the specimen was examined for various physical properties. I tested it.

The above polyether produced by the method of Example 1 and having the physical properties shown in Table 1 Approximately 90 parts of the imide were sold to Dow Chemical Company under the trade name Dow 213. Commercially available acrylonitrile-butadiene-styrene (hereinafter referred to as ABS) was mixed with 10 parts of A mixture of two types of polymers was prepared at a temperature of about 590? The die temperature and approx. 28 interval Warner &amp; It was extruded using a Pfeidler extruder. □ The resulting extrudate was cut into pellets and the pellets were injection molded and tested under approximately 610 I cut it into pieces. The impact strength of these specimens was measured using standard unnotched and notched Izo It was measured by a test and the results are shown in Table ■. Blend heating deflection temperature, bending properties and tensile properties were also measured and are shown in Table ■.

The invention can be achieved by mixing about 70 parts of polyetherimide with about 30 parts of ABS. and extruder temperature profile (21) Is it about 580-610? The die temperature is about 5707, the molding temperature is about 550? The method of Example (2) was repeated except that: Notes on blend test pieces Not only the results of the notched and unnotched isot impact tests, but also the heat deflection temperature, Bending properties and tensile) I! The ff properties are shown in Table m.

Example ■ About 50 parts of polyetherimide is mixed with about 50 parts of ABS to prepare a blend according to the invention. set the extruder temperature profile to about 540-605'F, and the die temperature to about 5'F. The method of Example (2) was repeated except that the temperature was lower than 30. About blend specimens Notched and unnotched Izod impact strength test results as well as heat deflection Table 3 shows the bending temperature, bending properties, and tensile properties.

About 30 parts of polyetherimide is mixed with about 70 parts of ABS to form a blend according to the invention. Set the extruder temperature profile to about 520-6057, set the die temperature to about Repeat the method of Example (■) except that the temperature was lower than 510. Regarding the blend test piece Notched and unnotched Izod impact test results as well as heat deflection The temperature, bending properties, and tensile properties are shown in Table ■.

Example X A blend was made by mixing about 10 parts of polyetherimide with about 90 parts of ABS. Repeating the method of Example Not only heating (22) During the extrusion of the blends of Examples Contains brown spots due to the dispersed polyetherimide component It was observed.

Therefore, a small amount of polyetherimide was released from the extruder.

This processing problem is caused by heating the feed skirt of the extruder barrel to relatively high temperatures and Can be overcome by melting the limide and then introducing ABS downstream in the extruder barrel . Alternatively, polyetherimide powder can be used to provide better heat transfer during melting. I was able to use it for this purpose.

(23) Kashou 0-501010 (s) (24) From the data shown in Table ■ above, polyether containing a small amount of polyetherimide Lumide-ABS blends have lower heat deflection temperatures, bending Having good properties in terms of strength and tensile properties, and a small amount of ABS The blend contained has properties somewhat comparable to those of polyetherimide. can be known, therefore ABS is a cheap filling for polyetherimide It can act as an agent to provide an acceptable material for certain applications.

Example: mowing The polyetherimide-high impact polystyrene blend according to the invention was prepared and The specimens were molded into specimens and the specimens were tested for various physical properties.

Polyetherimide having the physical properties shown in Table 1 and made by the method of Example I Approximately 90 copies were published by Foster Grand Company, Inc. High impact polystyrene commercially available under the trade name 9100 Natural Cuturex (hereinafter referred to as H-PS). Then mixing of two types of polymers Die temperature of about 5907 and about 600-630? Temperature profile varying with Extruded on a Warner & Pfeidler extruder with a the resulting extrusion The material was cut into pellets and the pellets were injection molded into test specimens. These specimens The impact strength of was measured by unnotched and notched Izot tests. is shown in Table IVI. Heat deflection temperature, flexural and tensile properties of blend specimens The properties were also measured and shown in Table ■.・(25) About 70 parts of polyetherimide are mixed with about 30 parts of HPS to prepare a binder according to the invention. The method of mowing in the example was repeated except that a rend was made. Regarding the blend test piece Not only the results of notched and unnotched Izot impact tests, but also the results of heat deflection tests. Table 3 shows the bending temperature, bending properties, and tensile properties.

About 50 parts of polyetherimide are mixed with about 50 parts of HPS to prepare a binder according to the present invention. The cutting of the example was repeated except that a rend was made. Notes on blend test pieces Not only the results of the notched and unnotched isot impact tests, but also the heat deflection temperature, The bending properties and tensile properties are shown in Table ■.

Example W About 30 parts of polyetherimide are mixed with about 70 parts of HPS to prepare a binder according to the invention. The method of mowing in the example was repeated except that a rend was made. Regarding the blend test piece Results of both notched and unnotched Izot impact tests as well as heat deflection The temperature, bending properties, and tensile properties are shown in Table ■.

Example store About 10 parts of polyetherimide is mixed with about 90 parts of H-PS to prepare a film according to the present invention. The method of cutting in the example was repeated except that a rend was made. Regarding the blend test piece Results of notched and unnotched Izod impact tests as well as heat deflection Table 3 shows the bending temperature, bending properties, and tensile properties.

From the data shown in Table ■, it is clear that the contamination of polyetherimide into HIPS is High concentrations of tellimide produced increased bending properties from the HIPS continuous phase. The heating deflection temperature after phase inversion of polyetherimide at about 50:50 mixing ratio is You can see that it will increase significantly. Tensile with high concentration of polyetherimide An increase in properties is also observed, but the impact properties are slightly lower across the entire blend system.

Substitutes for polyetherimide and/or polymer in the blends of each of the above examples The use of other polyetherimides and/or other rubber-modified vinyl aromatic polymers in properties such as improved impact strength when compared to the polyetherimide component alone. Schiff, which has similar properties, has better tensile or bending properties than the polymer alone. Forming an etherimide-rubber modified vinyl aromatic polymer blend Such programs that can be used are considered to be within the scope of this invention.

Although the invention has been illustrated with reference to specific embodiments, the scope of the invention is defined in the claims. It will be appreciated by those skilled in the art that many modifications may be made without departing from the scope of the invention.

Claims (1)

[Claims] 1. (a) Comb-modified vinyl aromatic polymer and (bl polyetherimide) Composition consisting of Lend. 2 The rubber-modified vinyl aromatic polymer has the structural formula (wherein R1 and R2 are hydrogen, carbon selected from the group consisting of lower alkyl groups or lower alkenyl groups having 1 to 6 atoms, R3 selected from the group consisting of lower alkyl groups and alkenyl groups having 1 to 6 children, (or R6 and R6 may form an unsaturated hydrocarbyl ring structure) Contains homopolymers and/or copolymers derived from aromatic monomers A composition according to claim 1. − The rubber-modified vinyl aromatic polymer has the general formula (wherein R and R7 are hydrogen and halogen). selected from the group consisting of , or R8 and 阜7 together represent an acid anhydride bond (-coooc-) , R9 is hydrogen, a vinyl group, an alkyl group having 1 to 12 carbon atoms, or an alkenyl group , cycloalkyl group, carbo (29) alkoxy group, alkoxy-alkyl group, alkylcarboxy group, ketoxy group, selected from halogen, carboxy group, cyano group, or pyridyl group, and n is 0 or 2. The composition according to claim 2, which is a copolymer of monomers of A product. 4. Rubber modified vinyl aromatic polymer with aliphatic conjugated diene ethylene- Claim 2, wherein the rubber is selected from propylene copolymer and KPDM rubber. Composition. 5. Comb modified vinyl aromatic polymer is acrylonitrile-butadiene-styrene A composition according to claim 1. 6. Claim that the rubber modified vinyl aromatic polymer is high iFi'1 impact polystyrene The composition according to item 1. 7 The rubber-modified vinyl aromatic polymer is methyl methacrylate-butadiene-styrene. The composition according to claim 1, which is a composition of claim 1. 8. Comb modified vinyl aromatic compound is styrene-ethylene-butylene-styrene. A composition according to claim 1. 9. Polyetherimide is the formula [In the formula, a digit 1 represents an integer that is dog, and the group -0-A or (30) (R/ is hydrogen, lower alkyl group or lower alkoxy group), 2 is (1) and (2) general formula One member selected from the group consisting of divalent groups, q is 0 or 1, and y is 1 to 5 R is a member of the group consisting of two organic groups (which is an integer of an aromatic hydrocarbon group having ~10 and its halogenated derivatives, (2) carbon atoms Alkylene groups and cycloalkylene groups having numbers 2 to 20, 02 to C8 alkyl Ren-terminated polydiorganosiloxane, and formula (3) one member selected from the group consisting of two organic groups selected from the group consisting of valent groups] Sections 5 and 6. The composition according to item 7 or 8. 10. Polyetherimide is the formula (In the formula, the two combinations of -o -z -o- are 3, 3'; 3, 4'; 4 , 3' or 4,4' position). Claim 9 Compositions as described in Section. 11.2 is (32) Ashi, R is 11. The composition according to claim 10, selected from: 12. Polyetherimide is the formula 8. The composition according to claim 7, which is a polyetherimide. (1)