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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 11226557 B1

PDFFull Text
Date of Patent:
Jan. 18, 2022

Filed:

Dec. 07, 2018

Photopolymer composition

Applicant:

Lg Chem, Ltd., Seoul, KR;

Inventors:

Seokhoon Jang, Daejeon, KR;

Hyunsup Lee, Daejeon, KR;

Heon Kim, Daejeon, KR;

Se Hyun Kwon, Daejeon, KR;

Yeongrae Chang, Daejeon, KR;

Assignee:

LG CHEM, LTD., Seoul, KR;

Attorney:

Rothwell, Figg, Ernst & Manbeck, P.C.

Primary Examiner:

Martin J Angebranndt

Int. Cl.
CPC ...
G03F 7/004 (2006.01); G03H 1/02 (2006.01); C08L 51/08 (2006.01); C08L 83/12 (2006.01); G03F 7/00 (2006.01); C08L 75/04 (2006.01);
U.S. Cl.
CPC ...
G03F 7/001 (2013.01); C08L 51/08 (2013.01); C08L 75/04 (2013.01); C08L 83/12 (2013.01); G03H 1/0248 (2013.01); G03H 2001/0264 (2013.01);
Abstract

The present disclosure relates to a hologram recording medium having a main relaxation temperature (Tr) of 0° C. or less, wherein the Tr is a point where a rate of change of phase angle with respect to temperature is the largest in a range of −80° C. to 30° C. in dynamic mechanical analysis. The present disclosure also relates to an optical element including the same and a holographic recording method using the hologram recording medium.

Find Patent Forward Citations

Jang, Seokhoon. (2022). Photopolymer composition (U.S. Patent No. 11226557). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11226557

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