Thermoplastic resin composition

• US 4,957,967 A
• Filed: 06/22/1989
• Issued: 09/18/1990
• Est. Priority Date: 06/30/1988
• 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): Jacobs, Lewis T.
• Assistant Examiner(s): Clark, William
• Application Number:
  US07/370,334
• Time in Patent Office: 453 Days
• Field of Search: 525/397, 525/66, 525/92, 525/133, 525/390, 525/395, 525/68
• 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 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 61/20 Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen with aminophenols C08L61/04
• 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 71/123 not modified by chemical after-treatment

Abstract

A thermoplastic resin composition having superior processability and impact strength has:

(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: ##STR1## (wherein R₁, R₂, R₃, R₄ and R₅ which may be identical or different, each represents a hydrogen atom, a halogen atom, a hydrocarbon group or a substituted hydrocarbon group and at elast one of them is a hydrogen atom) and 5-95 % by weight of a thermoplastic polyester, and

(B) 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:

(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;

##STR8## 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 which is a polycondensation product of a dicarboxylic acid or its functional derivative and a dioxy compound or its functional derivative, and

(B) 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.

4. A thermoplastic resin composition according to claim 1, which further comprises:

a component (C) comprising at least one impact strength modifier selected from the group consisting of natural and synthetic rubber-like polymer materials and modified rubber-like polymer materials.

2. 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;

##STR9## 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 which is polyethylene terephthalate, polybutylene terephthalate or a modified polymer containing the structure thereof, and

(B) 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.

3. The thermoplastic resin composition according to claim 2 wherein the thermoplastic polyester is a combination of a polyphenylene ether having an intrinsic viscosity of 0.25-0.45 dl/g with polyehtylene terephthalate or polybutylene terephthalate having an intrinsic viscosity of 0.9-2.5 dl/g.

5. A thermoplastic resin composition according to claim 2, wherein the amino resin (C) is represented by the following formula (I), (II) or (III):

##STR10## 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 where R₁₂ represents a hydrogen atom or an alkyl or cycloalkyl group of 1-10 carbon atoms, and at least one of R₆ -R₁₁ is a substituent denoted by the formula (I'"'"');

##STR11## 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 one of R₁₃ -R₁₆ is a substituent represented by the formula (I'"'"'); and

##STR12## 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'"'"').