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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.:

US 10538630 B1

PDFFull Text
Date of Patent:
Jan. 21, 2020

Filed:

Feb. 01, 2018

Silicone-modified polybenzoxazole resin and making method

Applicant:

Shin-etsu Chemical Co., Ltd., Tokyo, JP;

Inventors:

Hitoshi Maruyama, Annaka, JP;

Ryuto Hayashi, Annaka, JP;

Kazunori Kondo, Annaka, JP;

Hideyoshi Yanagisawa, Annaka, JP;

Assignee:

SHIN-ETSU CHEMICAL CO., LTD., Tokyo, JP;

Attorney:

Westerman, Hattori, Daniels & Adrian, LLP

Primary Examiner:

Duc Truong

Int. Cl.
CPC ...
C08G 81/02 (2006.01); C08G 77/442 (2006.01); C08F 226/06 (2006.01); C08K 5/5419 (2006.01); C08F 224/00 (2006.01); C08G 77/04 (2006.01); C08G 77/00 (2006.01);
U.S. Cl.
CPC ...
C08G 81/024 (2013.01); C08F 224/00 (2013.01); C08F 226/06 (2013.01); C08G 77/045 (2013.01); C08G 77/442 (2013.01); C08G 77/80 (2013.01); C08K 5/5419 (2013.01);
Abstract

A silicone-modified polybenzoxazole resin comprising repeating units of formulae (1a) and (1b) is prepared by addition polymerization. Rto Rare a C-Cmonovalent hydrocarbon group, m and n are integers of 0-300, Ris C-Calkylene or phenylene, a and b are positive numbers of less than 1, a+b=1, and Xis a divalent linker of formula (2). The resin is flexible, soluble in organic solvents, and easy to use.

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Maruyama, Hitoshi. (2020). Silicone-modified polybenzoxazole resin and making method (U.S. Patent No. 10538630). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10538630

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