The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 22, 1991
Filed:
Apr. 24, 1989
Masahiro Ohta, Yokohama, JP;
Saburo Kawashima, Yokosuka, JP;
Katsuaki Iiyama, Odawara, JP;
Shoji Tamai, Yokohama, JP;
Hideaki Oikawa, Yokohama, JP;
Akihiro Yamaguchi, Kamakura, JP;
Mitsui Toatsu Chemicals, Inc., Tokyo, JP;
Abstract
This invention relates to molding resin compositions, and more particularly relates to polyimide resin compositions having markedly improved molding ability in addition to excellent high temperature stability, chemical resistance and mechanical strength. The polyimide resin compositions of this invention comprises 99.9 to 50.0% by weight of the polyimide and 0.1 to 50.0% by weight of aromatic polyamideimide. The polyimide consists essentially of recurring units of the following formula: ##STR1## wherein X is ##STR2## and R is, for example, ##STR3##