Thermoplastic resin composition

• US 5,116,906 A
• Filed: 02/08/1990
• Issued: 05/26/1992
• Est. Priority Date: 02/09/1989
• Status: Expired due to Fees

• Current Assignee: Sumitomo Chemical Company Limited
• Original Assignee: Sumitomo Chemical Company Limited
• Inventors: Maruyama, Takashi, Mizuno, Yukio
• Primary Examiner(s): Ziegler, Jacob
• Application Number:
  US07/476,740
• Time in Patent Office: 838 Days
• Field of Search: 525/394, 525/66, 525/67, 525/68, 525/905
• US Class Current: 525/68
• CPC Class Codes: C08L 2666/14 Macromolecular compounds according to C08L59/00 - C08L87/00; Derivatives thereof
• CPC Class Codes: C08L 59/00 Compositions of polyacetals; Compositions of derivatives of polyacetals of polyvinyl acetals C08L29/14
• CPC Class Codes: C08L 61/00 Compositions of condensation polymers of aldehydes or ketones with polyalcohols C08L59/00; with polynitriles C08L77/00; Compositions of derivatives of such polymers
• CPC Class Codes: C08L 67/00 Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain of polyester-amides C08L77/12; of polyester-imides C08L79/08; Compositions of derivatives of such polymers
• CPC Class Codes: C08L 67/02 Polyesters derived from dicarboxylic acids and dihydroxy compounds C08L67/06 takes precedence
• CPC Class Codes: C08L 69/00 Compositions of polycarbonates; Compositions of derivatives of polycarbonates
• CPC Class Codes: C08L 71/00 Compositions of polyethers obtained by reactions forming an ether link in the main chain of polyacetals C08L59/00; of epoxy resins C08L63/00; of polythioether-ethers C08L81/02; of polyether-sulfones C08L81/06; Compositions of derivatives of such polymers
• CPC Class Codes: C08L 71/123 not modified by chemical after-treatment
• CPC Class Codes: C08L 77/00 Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain of polyhydrazides C08L79/06; of polyamideimides or polyamide acids C08L79/08; Compositions of derivatives of such polymers
• CPC Class Codes: C08L 79/08 Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
• CPC Class Codes: C08L 81/06 Polysulfones; Polyethersulfones
• CPC Class Codes: C08L 83/00 Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
• CPC Class Codes: Y10S 525/905 Polyphenylene oxide

Abstract

Disclosed is a thermoplastic resin composition which is improved in compatibility between polyphenylene ether and thermoplastic polyester and is excellent in processability, solvent resistance, and impact strength.

This composition comprises:

100 parts by weight of a composition comprising (A) 5-95% by weight of a polyphenylene ether and (B) 95-5% by weight of a thermoplastic polyester,

(C) 0.5-100 parts by weight of an aromatic polycarbonate resin,

(D) 0-50 parts by weight of a rubber-like polymer, and

(E) 0.01-10 parts by weight of an amino resin obtained by modifying with an alcohol an addition reaction product of formaldehyde and at least one compound selected from the group consisting of melamine, guanamine and urea.

Claims

1. A thermoplastic resin composition which comprises:

100 parts by weight of a composition comprising (A) 5-95% by weight of a polyphenylene ether and (B) 95-5% by weight of a thermoplastic polyester,

(C) 0.5-100 parts by weight of an aromatic polycarbonate resin, and

(E) 0.01-10 parts by weight of an amino resin obtained by modifying with an alcohol an addition reaction product of formaldehyde and at least one compound selected from the group consisting of melamine, guanamine and urea.

2. A thermoplastic resin composition according to claim 1, which additionally contains (D) 50 parts by weight or less of a rubber-like polymer which is elastic at room temperature.

3. A thermoplastic resin composition according to claim 1, wherein the amino resin (E) is represented by the following formula (I), (II) or (III):

##STR8## wherein R₁, R₂, R₃, R₄, R₅ and R₆ each represent a hydrogen atom, an alkyl group, an aryl group or a substituent denoted by the formula (I'"'"');

--CH₂ --O--R₇ wherein R₇ represents a hydrogen atom or an alkyl or cycloalkyl group of 1-10 carbon atoms, and at least one of R₁ -R₆ is a substituent denoted by the formula (I'"'"');

##STR9## wherein R₁₂ represents a hydrogen atom, an alkyl group, an alkoxy group or an aryl group, R₇₈, R₉, R₁₀ and R₁₁ each represent a hydrogen atom, an alkyl group, an aryl group or a substituent represented by the above-mentioned formula (I'"'"'), and at least one of R₈ -R₁₁ is a substituent represented by the formula (I'"'"');

##STR10## wherein R₁₃, R₁₄, R₁₅ and R₁₆ each represent a hydrogen atom, an alkyl group, an aryl group or a substituent represented by the above-mentioned formula (I'"'"'), and at least one of R₁₃ -R₁₆ is a substituent represented by the formula (I'"'"').

4. A thermoplastic resin composition according to claim 1, wherein the thermoplastic polyester (B) is a polycondensate of a dicarboxylic acid or its functional derivative and a dihydroxy compound or its functional derivative.

5. A thermoplastic resin composition according to claim 2, wherein the rubber-like polymer (D) is a natural or synthetic polymer which is elastic at room temperature.