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. 11, 2024
Filed:
Mar. 30, 2020
Mitsubishi Gas Chemical Company, Inc., Tokyo, JP;
Shun Ishikawa, Ibaraki, JP;
Noriyoshi Ogawa, Ibaraki, JP;
MITSUBISHI GAS CHEMICAL COMPANY, INC., Tokyo, JP;
Abstract
A terminally modified polycarbonate resin that has ultraviolet absorbing capability is provided. More specifically, the terminally modified polycarbonate resin has a structure represented by general formula (A) and a constituent unit that is derived from a dihydric phenol. (In general formula (A), Rrepresents a hydrogen atom or an alkyl group having 1-6 carbon atoms; Rrepresents an alkylene group having 1-6 carbon atoms; Rrepresents a hydrogen atom or a methyl group; Rrepresents a hydrogen atom or a halogen atom; and * represents the bonding position to the main chain of the polycarbonate resin.)