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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 11904574 B1

PDFFull Text
Date of Patent:
Feb. 20, 2024

Filed:

Jan. 15, 2019

Scratch resistant film and surface coating composition

Applicant:

3m Innovative Properties Company, St. Paul, MN (US);

Inventors:

Shinsuke Kondo, Yamagata, JP;

Naota Sugiyama, Tokyo, JP;

Yoshihiko Takeda, Miyagi, JP;

Tatsuya Sato, Tokyo, JP;

Assignee:

3M Innovative Properties Company, St. Paul, MN (US);

Attorney:
Primary Examiner:

John Vincent Lawler

Int. Cl.
CPC ...
B32B 23/08 (2006.01); C08J 7/043 (2020.01); C08J 7/046 (2020.01); C08J 7/04 (2020.01); B32B 27/30 (2006.01); B32B 27/32 (2006.01); B32B 27/36 (2006.01); B32B 27/40 (2006.01); C08J 5/18 (2006.01); C08K 3/22 (2006.01); C08K 3/36 (2006.01);
U.S. Cl.
CPC ...
B32B 23/08 (2013.01); B32B 27/304 (2013.01); B32B 27/306 (2013.01); B32B 27/308 (2013.01); B32B 27/32 (2013.01); B32B 27/36 (2013.01); B32B 27/40 (2013.01); C08J 5/18 (2013.01); C08J 7/043 (2020.01); C08J 7/046 (2020.01); C08J 7/0427 (2020.01); C08K 3/22 (2013.01); C08K 3/36 (2013.01); B32B 2255/20 (2013.01); B32B 2255/26 (2013.01); B32B 2307/406 (2013.01); B32B 2307/4023 (2013.01); B32B 2307/412 (2013.01); C08J 2475/04 (2013.01); C08K 2003/2227 (2013.01); C08K 2201/003 (2013.01); C08K 2201/011 (2013.01);
Abstract

Object: The present disclosure provides a film having a low gloss appearance and excellent scratch resistance, and a surface coating composition that can be used in the production of such a film. Resolution Means: The film of one embodiment of the present disclosure includes a scratch resistant surface layer containing a binder containing a urethane resin, urethane resin beads having an average particle diameter of 3 μm to 30 μm, hard particles having an average particle diameter of 5 μm to 45 μm; and nanosilica particles. The surface layer contains the hard particles in an amount of 30 parts by mass to 500 parts by mass per 100 parts by mass of the binder. The gloss of the surface layer is approximately 5.5 GU or less at 60 degrees.

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