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:
Oct. 10, 2017
Filed:
Sep. 13, 2013
Ube Industries, Ltd., Ube, JP;
Takuya Oka, Ube, JP;
Yukinori Kohama, Ube, JP;
Yoshiyuki Watanabe, Ube, JP;
Nobuharu Hisano, Ube, JP;
UBE INDUSTRIES, LTD., Ube-Shi, JP;
Abstract
A polyimide precursor comprising at least one repeating unit represented by the following chemical formula (5): in which Ais a divalent group of an aromatic diamine or an aliphatic diamine, from which amino groups have been removed; and Xand Yare each independently hydrogen, an alkyl group having 1 to 6 carbon atoms, or an alkylsilyl group having 3 to 9 carbon atoms, and/or at least one repeating unit represented by the following chemical formula (6): in which Ais a divalent group of an aromatic diamine or an aliphatic diamine, from which amino groups have been removed; and Xand Yare each independently hydrogen, an alkyl group having 1 to 6 carbon atoms, or an alkylsilyl group having 3 to 9 carbon atoms.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile