	US 12,319,036 B2
	Composite laminate and method for producing same
Hiroshi Yagi, Tokushima (JP); Takashi Kitajima, Tokushima (JP); and Kousuke Inada, Tokyo (JP)
Assigned to OTSUKA CHEMICAL CO., LTD., Osaka (JP)
Appl. No. 17/606,501
Filed by OTSUKA CHEMICAL CO., LTD., Osaka (JP)
PCT Filed May 7, 2020, PCT No. PCT/JP2020/018511 § 371(c)(1), (2) Date Oct. 26, 2021, PCT Pub. No. WO2020/235344, PCT Pub. Date Nov. 26, 2020.
Claims priority of application No. 2019-093349 (JP), filed on May 17, 2019; and application No. 2019-169013 (JP), filed on Sep. 18, 2019.
Prior Publication US 2022/0203663 A1, Jun. 30, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. 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)

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)]

11 Claims

1. A composite laminate comprising an A layer and a B layer, the A layer being provided directly or indirectly on one or both sides of the B layer, the A layer containing 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), the B layer containing reinforcing fibers (b1) with an average fiber length of 1 mm or more and a thermoplastic resin (b2), wherein the reinforcing fibers (a1) are at least one of potassium titanate and wollastonite, and the spherical particles (a11) are at least one material selected from the group consisting of silica and alumina.