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. 01, 1991
Filed:
Aug. 11, 1988
Friedrich Herold, Hofheim am Taunus, DE;
Gunther Keil, Hofheim am Taunus, DE;
Werner Bruckner, Kriftel, DE;
Jutta Cardinal, Kriftel, DE;
Cynthia Bennett, Wiesbaden, DE;
Hoechst Aktiengesellschaft, Frankfurt am Main, DE;
Abstract
A film made from aromatic copolyamides of the dicarboxylic acid diamine type, whose shaping substance comprises certain recurring structural units and which has specific criteria regarding Staudinger index, tear strength, volume resistance, electrical dielectric strength, dimensional stability and water absorption, a process for its production, and the use of the film for the production of heat-resistant insulation material or as a substrate for flexible circuit boards.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile