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:
Jun. 25, 2013
Filed:
Nov. 08, 2012
Takaaki Hikosaka, Sodegaura, JP;
Hideyuki Miyamoto, Tokyo, JP;
Hiroichi Hokari, Aizuwakamatsu, JP;
Chikayuki Chiba, Aizuwakamatsu, JP;
Hitoshi Takemoto, Ageo, JP;
Takaaki Hikosaka, Sodegaura, JP;
Hideyuki Miyamoto, Tokyo, JP;
Hiroichi Hokari, Aizuwakamatsu, JP;
Chikayuki Chiba, Aizuwakamatsu, JP;
Hitoshi Takemoto, Ageo, JP;
Idemitsu Kosan Co., Ltd., Tokyo, JP;
Abstract
A dihydric phenol compound represented by the following formula (2), a phosgene compound, and an aliphatic tertiary amine are mixed together using a hydrophobic organic solvent to produce bischloroformate that is represented by the following formula (1) and has an average number of repeating units (n) of 1.99 or less. In the formulae (1) and (2), Ar is a divalent aromatic group.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile