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:
Jul. 03, 1990
Filed:
Nov. 17, 1986
Applicant:
Inventors:
Yoshio Imai, Ota-ku, Tokyo, JP;
Taro Hino, Shinoharanishi-machi, Kohoku-ku, Yokohama-shi, Kanagawa-Ken, JP;
Mitsumasa Iwamoto, Tokyo, JP;
Masa-aki Kakimoto, Yokohama, JP;
Masa-aki Suzuki, Tokyo, JP;
Toru Konishi, Tokyo, JP;
Assignees:
Mitsubishi Kasei Corporation, Tokyo, JP;
Other;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
525426 ; 525436 ; 528125 ; 528128 ; 528172 ; 528173 ; 528183 ; 528185 ; 528188 ; 528220 ; 528226 ; 528229 ; 528352 ; 528353 ; 4274343 ; 264298 ; 26433119 ; 26433121 ; 264212 ; 264216 ;
Abstract
A film comprised of at least one monomolecular layer composed essentially of a polyimide having repeating units of the formula: ##STR1## wherein R.sup.1 is a tetravalent organic group and R.sup.2 is a bivalent organic group.