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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 11603441 B1

PDFFull Text
Date of Patent:
Mar. 14, 2023

Filed:

Jul. 09, 2019

Methacrylic resin, shaped article, and optical component or automotive part

Applicant:

Asahi Kasei Kabushiki Kaisha, Tokyo, JP;

Inventors:

Junichi Yoshida, Tokyo, JP;

Yutaka Tada, Tokyo, JP;

Takuto Nakata, Tokyo, JP;

Miyuki Kazunori, Tokyo, JP;

Assignee:

ASAHI KASEI KABUSHIKI KAISHA, Tokyo, JP;

Attorney:

Kenja IP Law PC

Primary Examiner:

Richard A Huhn

Int. Cl.
CPC ...
C08F 220/14 (2006.01); C08F 222/40 (2006.01); C08J 5/18 (2006.01); C08F 120/14 (2006.01); C08F 2/38 (2006.01); C08F 8/48 (2006.01); C08F 8/16 (2006.01);
U.S. Cl.
CPC ...
C08J 5/18 (2013.01); C08F 120/14 (2013.01); C08F 222/402 (2020.02); C08F 2/38 (2013.01); C08F 8/16 (2013.01); C08F 8/48 (2013.01); C08F 220/14 (2013.01); C08F 222/40 (2013.01);
Abstract

A methacrylic resin having a cyclic structure in a main chain thereof, a shaped article, and an optical component or automotive part, in which the glass transition temperature is higher than 120° C. and 160° C. or lower, and the sign of the orientational birefringence when being oriented so as to have a degree of orientation of 0.03 is different from the sign of the orientational birefringence when being oriented so as to have a degree of orientation of 0.08.

Find Patent Forward Citations

Yoshida, Junichi. (2023). Methacrylic resin, shaped article, and optical component or automotive part (U.S. Patent No. 11603441). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11603441

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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