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:
Feb. 23, 1982
Filed:
Dec. 17, 1979
Applicant:
Inventors:
Assignee:
Asahi Kasei Kogyo Kabushiki Kaisha, Osaka, JP;
Primary Examiner:
Int. Cl.
CPC ...
C08G / ; C08F / ;
U.S. Cl.
CPC ...
525422 ; 20415914 ; 20415919 ; 20415923 ; 20415918 ; 430281 ; 430288 ; 525420 ; 525423 ; 525424 ; 525426 ; 525419 ; 525430 ; 525436 ; 525449 ; 525452 ; 525454 ; 525455 ;
Abstract
An organic polar solvent-soluble aromatic polyamide-imide having therein aromatic nuclei linked at their respective 1 - and 3 - positions and having therein amide linkages and terminal groups unsubstituted or partially substituted with acrylate or methacrylate groups is found to impart excellent heat resistance and insulating property to a photoresist composition produced therefrom.