申请人:Ube Industries, Ltd.
公开号:EP3950345A1
公开(公告)日:2022-02-09
Provided is a laminate that has excellent low-temperature impact resistance and bursting pressure strength at high temperatures despite having a thick modified polyolefin layer. The laminate has two or more layers including an (a) layer and a (b) layer, the (a) layer includes an aliphatic polyamide composition (A), and the (b) layer includes a modified polyolefin (B). The modified polyolefin (B) includes a unit derived from a monomer based on an α-olefin having 2-10 carbon atoms, and a unit derived from an unsaturated compound having at least one functional group selected from the group consisting of: unsaturated compounds having at least one group selected from the group consisting of a carboxyl group, a hydroxyl group, an epoxy group, an amino group, an amide group, an imide group, a nitrile group, a thiol group, and an isocyanate group; and derivatives of unsaturated compounds having a carboxyl group. The Shore hardness (D scale) of the modified polyolefin (B) as measured according to ASTM D2240 is 30-61.
本发明提供了一种层压板,尽管具有较厚的改性聚烯烃层,但仍具有优异的低温抗冲击性和高温爆破压力强度。层压板有两层或多层,包括(a)层和(b)层,(a)层包括脂肪族聚酰胺组合物(A),(b)层包括改性聚烯烃(B)。改性聚烯烃 (B) 包括一个由基于具有 2-10 个碳原子的 α-烯烃的单体衍生的单元,以及一个由具有至少一个官能团的不饱和化合物衍生的单元,该不饱和化合物具有至少一个官能团,该官能团选自由以下组成的组:具有至少一个选自以下组别的基团的不饱和化合物:羧基、羟基、环氧基、氨基、酰胺基、酰亚胺基、腈基、硫醇基和异氰酸酯基;以及具有羧基的不饱和化合物的衍生物。根据 ASTM D2240 测量,改性聚烯烃(B)的肖氏硬度(D 级)为 30-61。