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. 15, 2024
Filed:
Sep. 20, 2019
Applicant:
Sumitomo Chemical Company, Limited, Tokyo, JP;
Inventors:
Kazuyuki Ito, Tsukuba, JP;
Kensuke Maekawa, Osaka, JP;
Assignee:
SUMITOMO CHEMICAL COMPANY, LIMITED, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 65/40 (2006.01);
U.S. Cl.
CPC ...
C08G 65/40 (2013.01);
Abstract
The present invention relates to a poly(biphenyl ether sulfone) resin substantially comprising a repeating structure of the following formula (1), and having a spin-lattice relaxation time Tof a long component of 24 s or more, which is calculated from decay of a signal intensity I (τ) corresponding to a chemical shift of 129 ppm by acquiring aC-NMR spectrum by a Torchia pulse sequence using an NMR device for solid sample measurement and changing a value of a waiting time τ in the pulse sequence,