logo

For the Inventor, By the Inventor

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 11560453 B1

PDFFull Text
Date of Patent:
Jan. 24, 2023

Filed:

Aug. 04, 2021

Polyorganosilsesquioxane, hard coat film, adhesive sheet, and laminate

Applicant:

Daicel Corporation, Osaka, JP;

Inventors:

Akihiro Kuwana, Himeji, JP;

Nobuhiko Harada, Himeji, JP;

Maya Masui, Himeji, JP;

Ichiro Takase, Himeji, JP;

Shinji Maetani, Himeji, JP;

Naoko Tsuji, Himeji, JP;

Assignee:

DAICEL CORPORATION, Osaka, JP;

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

Michael B Nelson

Int. Cl.
CPC ...
C08G 77/14 (2006.01); C09D 183/06 (2006.01); C09J 183/06 (2006.01); C08L 83/06 (2006.01); C08G 59/24 (2006.01); C08L 63/00 (2006.01); B32B 9/00 (2006.01); B32B 9/04 (2006.01); B32B 15/08 (2006.01); B32B 21/08 (2006.01); B32B 27/08 (2006.01); B32B 27/28 (2006.01); C08K 5/5415 (2006.01); C09J 7/20 (2018.01); C08J 7/043 (2020.01); C08J 7/048 (2020.01); B32B 7/12 (2006.01);
U.S. Cl.
CPC ...
C08G 77/14 (2013.01); B32B 7/12 (2013.01); B32B 9/005 (2013.01); B32B 9/045 (2013.01); B32B 15/08 (2013.01); B32B 21/08 (2013.01); B32B 27/08 (2013.01); B32B 27/28 (2013.01); B32B 27/283 (2013.01); C08G 59/24 (2013.01); C08J 7/043 (2020.01); C08J 7/048 (2020.01); C08K 5/5415 (2013.01); C08L 63/00 (2013.01); C08L 83/06 (2013.01); C09D 183/06 (2013.01); C09J 7/20 (2018.01); C09J 183/06 (2013.01); B32B 2250/02 (2013.01); B32B 2250/03 (2013.01); B32B 2255/26 (2013.01); B32B 2307/306 (2013.01); B32B 2307/536 (2013.01); B32B 2307/546 (2013.01); B32B 2307/732 (2013.01); B32B 2405/00 (2013.01); B32B 2457/208 (2013.01); C09J 2483/00 (2013.01); Y10T 428/31504 (2015.04); Y10T 428/31663 (2015.04);
Abstract

Provided is a polyorganosilsesquioxane capable of forming, when cured, a cured product that offers high surface hardness and good heat resistance, is highly flexible, and has excellent processability. The present invention relates to a polyorganosilsesquioxane including a constitutional unit represented by Formula (1). The polyorganosilsesquioxane includes a constitutional unit represented by Formula (I) and a constitutional unit represented by Formula (II) in a mole ratio of the constitutional unit represented by Formula (I) to the constitutional unit represented by Formula (II) of 5 or more. The polyorganosilsesquioxane has a total proportion of the constitutional unit represented by Formula (1) and a constitutional unit represented by Formula (4) of 55% to 100% by mole based on the total amount (100% by mole) of all siloxane constitutional units. The polyorganosilsesquioxane has a number-average molecular weight of 1000 to 3000 and a molecular-weight dispersity (weight-average molecular weight to number-average molecular weight ratio) of 1.0 to 3.0.[RSiO]  (1)[Chem. 2][RSiO]  (I)[Chem. 3][RSiO(OR)]  (II)[Chem. 4][RSiO(OR)]  (4)

Find Patent Forward Citations

Loading…