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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 12319036 B1

PDFFull Text
Date of Patent:
Jun. 03, 2025

Filed:

May. 07, 2020

Composite laminate and method for producing same

Applicant:

Otsuka Chemical Co., Ltd., Osaka, JP;

Inventors:

Hiroshi Yagi, Tokushima, JP;

Takashi Kitajima, Tokushima, JP;

Kousuke Inada, Tokyo, JP;

Assignee:

OTSUKA CHEMICAL CO., LTD., Osaka, JP;

Attorney:

WHDA, LLP

Primary Examiner:

Monique R Jackson

Int. Cl.
CPC ...
B32B 27/20 (2006.01); B29C 70/00 (2006.01); B32B 5/02 (2006.01); B32B 5/26 (2006.01); B32B 27/12 (2006.01); B32B 27/34 (2006.01);
U.S. Cl.
CPC ...
B32B 27/20 (2013.01); B29C 70/003 (2021.05); B32B 5/022 (2013.01); B32B 5/266 (2021.05); B32B 27/12 (2013.01); B32B 27/34 (2013.01); B32B 2260/021 (2013.01); B32B 2260/046 (2013.01); B32B 2262/0269 (2013.01); B32B 2262/10 (2013.01); B32B 2262/101 (2013.01); B32B 2262/106 (2013.01); B32B 2264/101 (2013.01); B32B 2264/1021 (2020.08); B32B 2264/1023 (2020.08); B32B 2264/302 (2020.08); B32B 2264/303 (2020.08); B32B 2307/732 (2013.01); B32B 2457/00 (2013.01); B32B 2605/00 (2013.01);
Abstract

Provided is a composite laminate having excellent releasability from a mold during a production process, excellent surface appearance (surface smoothness) and mechano-physical properties, and excellent workability and coating adhesion. A composite laminateincludes an A layerand a B layer, wherein the A layeris provided directly or indirectly on one or both sides of the B layer, the A layercontains reinforcing fibers (a1) with an average fiber length of 1 μm to 300 μm, spherical particles (a11) with a volume mean particle diameter of 0.01 μm to 100 μm, and a thermoplastic resin (a2), and the B layercontains reinforcing fibers (b1) with an average fiber length of 1 mm or more and a thermoplastic resin (b2).

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