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Title:
MOLDED POLYESTER ARTICLE HAVING THERMAL SHOCK RESISTANCE
Document Type and Number:
Japanese Patent JPH07179618
Kind Code:
A
Abstract:

PURPOSE: To obtain a molded composite polyester resin article improved in thermal shock resistance by molding a resin compsn. comprising an unsatd. polyester resin having a specified heat distortion temp. and an inorg. filler.

CONSTITUTION: This molded article, having an improved thermal shock resistance to rupture of at least 600 cycles according to the more strict form of ANSI test Z 124,3, is prepd. by molding a composite compsn. comprising about 60-80 wt.% inorg. filler and about 20-40 wt.% unsatd. polyester. Such an improved thermal shock resistance is directly related to the use of an unsatd. polyester resin which in the unfilled state gives a cured item having a heat distortion temp. of about 68-78°C. Thus is obtd. a molded polyester article improved in thermal shock resistance.


Inventors:
KATARI ESU RAJIYU
Application Number:
JP1291992A
Publication Date:
July 18, 1995
Filing Date:
January 28, 1992
Export Citation:
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Assignee:
REICHHOLD CHEMICALS INC
International Classes:
C08J5/00; C04B26/18; C08G18/67; C08G63/52; C08G63/676; C08K3/00; C08K3/26; C08L67/06; C08L75/16; (IPC1-7): C08J5/00; C08G63/52; C08L67/06; C08L75/16
Domestic Patent References:
JPH01313517A1989-12-19
JPS6072921A1985-04-25
JPH02199050A1990-08-07
JPS55151028A1980-11-25
Attorney, Agent or Firm:
Hideo Dobashi (1 outside)