Thermoplastic resin composition

• US 5,206,290 A
• Filed: 12/03/1990
• Issued: 04/27/1993
• Est. Priority Date: 07/06/1988
• 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:
  US07/620,414
• Time in Patent Office: 876 Days
• Field of Search: 525/92, 525/134, 525/905
• US Class Current: 525/134
• CPC Class Codes: C08L 2666/02 Organic macromolecular compounds, natural resins, waxes or and bituminous materials
• CPC Class Codes: C08L 61/26 of aldehydes with heterocyclic compounds
• 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 71/123 not modified by chemical after-treatment
• CPC Class Codes: C08L 75/00 Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
• 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 81/04 Polysulfides
• CPC Class Codes: Y10S 525/905 Polyphenylene oxide

Abstract

A thermoplastic resin composition which exhibits improved compatibility between polyphenylene ether and thermoplastic polyester constituents, excellent processability and impact strength contains 95-5% by wt. a polyphenylene ether and 5-95% by wt. of a thermoplastic polyester; 0.1-30 parts by wt. of an impact strength modifier; and 0.01-10 parts by weight of an amino resin.

Claims

1. A thermoplastic resin composition which comprises:

(A) 100 parts by weight of a composition comprising 95-5% by weight of a polyphenylene ether obtained by oxidation polymerization of at least one phenol compound represented by the following formula;

##STR7## wherein R₁, R₂, R₃, R₄, and R₅ which may be identical or different, each represents a hydrogen atom, a halogen atom, a hydrocarbon radical or a substituted hydrocarbon radical and at least one of them is a hydrogen atom, and 5-95% by weight of a thermoplastic polyester,

(B) 0.1-30 parts by weight of (i) a natural or synthetic polymer material elastic at room temperature, or (ii) a modified natural or synthetic polymer material elastic at room temperature;

(C) 0.01-10 parts by weight of at least one amino resin, wherein the amino resin (C) is represented by the following formulas (I), (II), or (III);

##STR8## wherein R₆, R₇, R₈, R₉, R₁₀ and R₁₁ each represents a hydrogen atom, an alkyl group, an aryl group or a substituent denoted by the formula (I'"'"');

--CH₂ --O--R₁₂, wherein R₁₂ represents a hydrogen atom, an alkyl group of 1-10 carbon atoms or a cycloalkyl group of 10 carbon atoms or less, and at least one of R₆ -R₁₁ is a substituent denoted by the formula (I'"'"'), ##STR9## wherein R represents a hydrogen atom, an alkyl group, an alkoxy group or an aryl group excluding amino group, R₁₃, R₁₄, R₁₅, and R₁₆, each represents a hydrogen atom, an alkyl group, an aryl group or a substituent represented by the above-mentioned formula (I'"'"') and at least on of R₁₃ -R₁₆ is a substituent represented by the formula (I'"'"'); and

##STR10## wherein R₁₇, R₁₈, R₁₉, and R₂₀, each represents a hydrogen atom, an alkyl group, an aryl group or a substituent represented by the above-mentioned formula (I'"'"') and at least one of R₁₇ -R₂₀ is a substituent represented by the formula (I'"'"').

2. A thermoplastic resin composition according to claim 1, wherein R₆, R₇, R₈, R₉, R₁₀ and R₁₁ each represent CH₂ OCH₃.

3. A thermoplastic resin composition according to claim 1, wherein the synthetic polymer material is a hydrogenated styrene/butadiene/styrene block co-polymer rubber.

4. A thermoplastic resin composition according to claim 1, wherein the thermoplastic polyester is a polycondensation product of a dicarboxylic acid or its functional derivative and a diol compound or its functional derivative.

5. A thermoplastic resin composition according to claim 4, wherein the thermoplastic polyester is polyethylene terephthalate or polybutylene terephthalate.

6. A thermoplastic resin composition according to claim 4, where the thermoplastic polyester is a modified polyethylene terephthalate or a modified polybutylene terephthalate.