EP0244090A1
Expired / Lapsed
EP
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Thermoplastic resin composition
Assignee: JSR Corp
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Filing: 1987-03-30
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Granted: —
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Expires: 2007-03-30
Abstract
Abstract A thermoplastic resin composition obtained by melt-mixing: (a) 4 to 95% by weight of a polyphenylene ether resin, (b) 4 to 95% by weight of a polyamide, (c) l to 50% by weight of a rubbery polymer, and (d) if necessary, 9l% by weight or less of a styrene resin (d) [the sum of the (a), (b), (c) and (d) components is l00% by weight] in the presence of 0.00l to l0% by weight, based on the total weight of the (a), (b), (c) and (d) components, of at least one functional group-containing unsaturated compound having at least one group selected from the class consisting of carboxyl group, acid anhydride group, epoxy group, hydroxyl group, amino group and amido group and 0.00l to 5% by weight, based on the total weight of the (a), (b), (c) and (d) components, of a peroxide. This thermoplastic resin composition is excellent in balance of impact strength of thin molded product, moldability and heat resistance. Therefore, the composition can be used as molded products such as external and internal trim parts of automobiles, electric and electronic components, housings and the like, requiring a high quality, and accordingly is highly valuable in industrial utilization.
Inventors
- 👤 Masaaki Mawatari
- 👤 Tetsuo Itoh
- 👤 Syuji Tsuchikawa
- 👤 Shinichi Kimura
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-30 16:26
CPC Classifications
C; C08; C08L; C08L77/00; C08L25/00; C08L25/02; C08L25/04; C08L71/00; C08L71/08; C08L71/10; C08L71/12; C08L71/123; C08L21/00; C08L79/00; C08L79/04; C08L79/08; C08L81/00; C08L81/02; C08L81/06; Y; Y10; Y10S; Y10S525/00; Y10S525/905
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
48 words
A thermoplastic resin composition obtained by melt-mixing: (a) 4 to 95% by weight of a polyphenylene ether resin, (b) 4 to 95% by weight of a polyamide, (c) l to 50% by weight of a rubbery polymer, and (d) 9l% by weight or less of a styrene resin
Claim 2
Dependent Claim
48 words
A thermoplastic resin composition obtained by melt-mixing: (a) 4 to 95% by weight of a polyphenylene ether resin, (b) 4 to 95% by weight of a polyamide, (c) l to 50% by weight of a rubbery polymer, and (d) 9l% by weight or less of a styrene resin
Claim 3
Dependent Claim
91 words
[the sum of the (a), (b), (c) and (d) components is l00% by weight] in the presence of 0.00l to l0% by weight, based on the total weight of the (a), (b), (c) and (d) components, of at least one functional group-containing unsaturated compound having at least one group selected from the class consisting of carboxyl group, acid anhydride group, epoxy group, hydroxyl group, amino group and amido group and 0.00l to 5% by weight, based on the total weight of the (a), (b), (c) and (d) components, of a peroxide.
Claim 4
Dependent Claim
91 words
[the sum of the (a), (b), (c) and (d) components is l00% by weight] in the presence of 0.00l to l0% by weight, based on the total weight of the (a), (b), (c) and (d) components, of at least one functional group-containing unsaturated compound having at least one group selected from the class consisting of carboxyl group, acid anhydride group, epoxy group, hydroxyl group, amino group and amido group and 0.00l to 5% by weight, based on the total weight of the (a), (b), (c) and (d) components, of a peroxide.
Claim 5
Dependent Claim
38 words
A thermoplastic resin composition according to Claim l, wherein at least one of the (a), (b) and (c) components is dispersed in the composition and the dispersed particles have a weight-average particle diameter of 5 µm or less.
Claim 6
Dependent Claim
189 words
A thermoplastic resin composition according to Claim l or 2, wherein the functional group-containing unsaturated compound is selected from the class consisting of unsaturated carboxylic acids; unsaturated carboxylic anhydrides; unsaturated glycidyl esters, unsaturated glycidyl ethers, epoxyalkenes and p-glycidylstyrenes represented by the formulas: wherein R⁵ is a C 2-18 hydrocarbon group having an ethylenic unsaturation; R⁶ is a hydrogen atom or a methylgroup; and X is -CH₂- O -, alcohols having a double bond; alcohols having a triple bond; esters of an unsaturated mono- or dicarboxylic acid with an unsubstituted dihydric alcohol, an unsubstituted trihydric alcohol, an unsubstituted tetrahydric alcohol or an unsubstituted penta- or higher-hydric alcohol; and alkenyl compounds having at least one group selected from the amino, substituted amino, amido and substituted amido groups represented by the formula: wherein R⁷ is a hydrogen atom, a methyl group or an ethyl group; and R⁸ is a hydrogen atom, an alkyl group having l to l2 carbon atoms, an alkanoyl group having 2 to l2 carbon atoms, an aryl group having 6 to l2 carbon atoms, a cycloalkyl group having 6 to l2 carbon atoms or a derivative group thereof.
Claim 7
Dependent Claim
32 words
A thermoplastic resin composition according to Claim 3, wherein the functional group-containing unsaturated compound is at least one compound selected from the class consisting of unsaturated carboxylic acids and unsaturated carboxylic anhydrides.
Claim 8
Dependent Claim
19 words
A thermoplastic resin composition according to Claim 4, wherein the functional group-containing unsaturated compound is an unsaturated carboxylic anhydride.
Claim 9
Dependent Claim
58 words
A thermoplastic resin composition according to Claim 4, wherein the unsaturated carboxylic acid is selected from the class consisting of acrylic acid, methacrylic acid, crotonic acid, cinnamic acid, itaconic acid and maleic acid, and the unsaturated carboxylic anhydride is selected from the class consisting of maleic anhydride, itaconic anhydride, chloromaleic anhydride, citraconic anhydride, butenylsuccinic anhydride and tetrahydrophthalic anhydride.
Claim 10
Dependent Claim
22 words
A thermoplastic resin composition according to Claim 6, wherein the functional group-containing unsaturated compound is acrylic acid, methacrylic acid or maleic anhydride.
Claim 11
Dependent Claim
16 words
A thermoplastic resin composition according to Claim 5, wherein the unsaturated carboxylic anhydride is maleic anhydride.
Claim 12
Dependent Claim
28 words
A thermoplastic resin composition according to any of Claims 1 to 8, wherein the amount of the functional group- containing unsaturated compound is 0.005 to 5% by weight.
Claim 13
Dependent Claim
45 words
l0. A thermoplastic resin composition according to any of Claims l - 9, wherein the peroxide is at least one organic peroxide selected from the class consisting of 2,5-dimethyl-2,5-di(tert-butylperoxy)hexyne-3, 2,5-dimethyl-2,5-di(tert-butylperoxy)hexane, 2,2′-bis(tert-butylperoxy)-p-diisopropylbenzenedicumyl peroxide, di-tert-butyl peroxide, tert-butyl peroxybenzoate, l,l-bis(tert-butylperoxy)-3,3,5-trimethylcyclohexane, 2,4-dichlorobenzoyl peroxide, benzoyl peroxide, p-chlorobenzoyl peroxide and azobisisobutyronitrile.
Claim 14
Dependent Claim
16 words
A thermoplastic resin composition according to Claim l0, wherein the organic peroxide is 2,5-dimethyl-2,5-di(tert-butylperoxy)hexane or 2,5-di(tert-butylperoxy)hexyne-3.
Claim 15
Dependent Claim
24 words
A thermoplastic resin composition according to any of Claims 1 - 11, wherein the amount of the Peroxide is 0.005 to 2% by weight.
Claim 16
Dependent Claim
38 words
A thermoplastic resin composition according to any of Claims 1 - 12, wherein the amount of the (a) component is 5 to 50% by weight and the amount of the (b) component is 40 to 90% by weight.
Claim 17
Dependent Claim
24 words
A thermoplastic resin composition according to any of Claims 1 - 13, wherein the amount of the (d) component is 1 to50% by weight.
Claim 18
Dependent Claim
19 words
A thermoplastic resin composition according to Claim 2, wherein the component dispersed in the composition is the (a) component.
Claim 19
Dependent Claim
33 words
A thermoplastic resin composition according to any of Claims 1 - 14, which is obtained by firstly melt-mixing the (a) component and the (c) component and then melt-mixing the (b) component with them.
Claim 20
Dependent Claim
31 words
A thermoplastic resin composition according to Claim l6, wherein the functional group-containing unsaturated compound and the peroxide are added at the stage of melt-mixing the (a) component and the (c) component.
Claim 21
Dependent Claim
23 words
A thermoplastic resin composition according to Claim 16 or 17, wherein the melt-mixing is conducted by a twin-screw extruder at 200° to 350°C.
Claim 22
Dependent Claim
22 words
A thermoplastic resin composition according to Claim 2 to 15, wherein the diameter of the dispersed particles is 3 µm or less.
Claim 23
Dependent Claim
54 words
A thermoplastic resin composition according to any of Claims 1 - 19, wherein the polyphenylene ether resin (a) is a polymer represented by the formula: wherein R¹, R², R³ and R⁴, which may be the same or different, represent alkyl groups, aryl groups, halogen atoms or hydrogen atoms; and n is degree of polymerization.
Claim 24
Dependent Claim
103 words
2l. A thermoplastic resin composition according to Claims 1 - 20 wherein the polyamide as the (b) component is at least one polyamide selected from the class consisting of condensation products of a linear diamine represented by the formula: H₂N - (CH₂) x - NH₂ wherein x is an integer of 4 to l2 with a linear dicarboxylic acid represented by the formula: HO₂C - (CH₂) y - CO₂H wherein y is an integer of 2 to l2; polyamides formed by the ring opening polymerization of a lactam; semi-aromatic polyamides; polyamides formed from m-xylenediamine and the above linear dicarboxylic acid; polyesteramides; and polyesteretheramides.
Claim 25
Dependent Claim
37 words
A thermoplastic resin composition according to any of Claims 1 - 21, wherein the rubbery polymer as the (c) component is at least one rubbery polymer selected from the class consisting of rubbery polymers and thermoplastic elastomers.
Claim 26
Dependent Claim
32 words
A thermoplastic resin composition according to Claim 22 wherein the rubbery polymer as the (c) component is selected from the class consisting of polybutadienes, styrene-butadiene copolymers, ethylene-alpha-olefin copolymers and styrene-butadiene block copolymers.
Claim 27
Dependent Claim
27 words
A thermoplastic resin composition according to any of Claims 1 - 23, wherein the styrene resin (d) is a styrene-glycidyl methacrylate copolymer or a styrene-acrylic acid copolymer.
References Cited (Backward Citations)
EP0024120B1
Cited
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