US 11,951,718 B2
Laminate
Kazutoshi Tsuboi, Ube (JP); Daisuke Douyama, Ube (JP); Hiroaki Fujii, Ube (JP); and Takaaki Kusumoto, Ube (JP)
Assigned to UBE CORPORATION, Ube (JP)
Appl. No. 17/599,111
Filed by UBE CORPORATION, Ube (JP)
PCT Filed Mar. 27, 2020, PCT No. PCT/JP2020/014352
§ 371(c)(1), (2) Date Sep. 28, 2021,
PCT Pub. No. WO2020/203905, PCT Pub. Date Oct. 8, 2020.
Claims priority of application No. 2019-068717 (JP), filed on Mar. 29, 2019.
Prior Publication US 2022/0169000 A1, Jun. 2, 2022
Int. Cl. B32B 27/08 (2006.01); B32B 1/08 (2006.01); B32B 27/22 (2006.01); B32B 27/32 (2006.01); B32B 27/34 (2006.01); C08J 5/18 (2006.01); C08L 23/26 (2006.01); C08L 77/02 (2006.01); F16L 11/04 (2006.01)
CPC B32B 27/08 (2013.01) [B32B 1/08 (2013.01); B32B 27/22 (2013.01); B32B 27/32 (2013.01); B32B 27/34 (2013.01); C08J 5/18 (2013.01); C08L 23/26 (2013.01); C08L 77/02 (2013.01); F16L 11/04 (2013.01); B32B 2250/02 (2013.01); B32B 2250/24 (2013.01); B32B 2307/536 (2013.01); B32B 2307/54 (2013.01); B32B 2307/558 (2013.01); B32B 2597/00 (2013.01); C08J 2323/26 (2013.01); C08J 2377/02 (2013.01); C08J 2423/26 (2013.01); C08L 2203/16 (2013.01); F16L 2011/047 (2013.01)] 16 Claims
 
1. A laminate having two or more layers comprising Layer (a) and Layer (b),
the Layer (a) contains an aliphatic polyamide composition (A),
the Layer (b) contains a modified polyolefin (B),
the modified polyolefin (B) is a maleic anhydride-modified polpropylene,
the modified polyolefin (B) has a Shore hardness (D scale) measured in accordance with ASTM D2240 of 30 or more and 61 or less,
the aliphatic polyamide composition (A) contains a polyamide (A1), an impact resistant agent and a plasticizer,
the polyamide (A1) is polyamide 11, polyamide 12, or polyamide 610,
the impact resistant agent is an elastomer polymer which has a constitutional unit derived from an unsaturated compound having a carboxyl group and/or an acid anhydride group, and has a Shore hardness (D scale) measured in accordance with ASTM D2240 of less than 30, and a content of the impact resistant agent in the aliphatic polyamide composition (A) is 5% by mass or more and 30% by mass or less based on 100% by mass of the aliphatic polyamide composition (A),
a content of the plasticizer in the aliphatic polyamide composition (A) is 1% by mass or more and 10% by mass or less based on 100% by mass of the aliphatic polyamide composition (A),
a thickness of Layer (a) in the laminate is 50% or more and 95% or less based on the total wall thickness of the laminate,
a thickness of Laver (b) in the laminate is 5% or more and 50% or less based on the total wall thickness of the laminate, and
the total wall thickness of the laminate is 0.5 mm or more and 25 mm or less.