公开(公告)号：US20160288464A1

公开(公告)日：2016-10-06

申请号：US15084826

申请日：2016-03-30

Applicant: JSP CORPORATION

Inventor： Kazuhiko MORITA ,  Hirotoshi KAKUTA ,  Ryuichi TANIGUCHI

IPC: B32B27/06 ,  B32B27/32 ,  B32B5/18

CPC classification number: B32B27/065 ,  B32B5/18 ,  B32B27/32 ,  B32B2250/02 ,  B32B2250/242 ,  B32B2266/025 ,  C08L23/08 ,  C08L23/14

Abstract: There is provided a polyethylene-based resin foam sheet with an appearance density of 90 to 600 kg/m3, including: a polyethylene-based resin foam layer; and a polyolefin-based resin layer laminated on at least one side of the polyethylene-based resin foam layer by coextrusion, wherein the polyolefin-based resin layer comprises a mixture of a polypropylene-based resin with a melting point of 135° C. or lower produced using a metallocene catalyst and a polyethylene-based resin, and wherein the polyolefin-based resin layer has a sea-island structure formed on the interface side with the polyethylene-based resin foam layer and a sea-sea structure formed on the surface side of the polyolefin-based resin layer, the sea-island structure having a continuous phase of the polyethylene-based resin and a dispersion phase of the polypropylene-based resin, and the sea-sea structure having a co-continuous phase of the polyethylene-based resin and the polypropylene-based resin.

Abstract translation: 提供外观密度为90〜600kg / m 3的聚乙烯系树脂发泡体片，包括：聚乙烯类树脂发泡体层; 以及通过共挤出层压在聚乙烯类树脂发泡体层的至少一侧的聚烯烃类树脂层，其中，所述聚烯烃类树脂层包含熔点为135℃的聚丙烯类树脂的混合物，或 使用茂金属催化剂和聚乙烯类树脂制造的低聚物，其中聚烯烃类树脂层在与聚乙烯类树脂发泡体层的界面侧形成有海岛结构，在表面形成海海结构 聚烯烃类树脂层的侧面，具有聚乙烯类树脂的连续相的海岛结构和聚丙烯类树脂的分散相，以及具有聚乙烯的共连续相的海 - 海结构 基树脂和聚丙烯基树脂。

公开(公告)号：US20140070442A1

公开(公告)日：2014-03-13

申请号：US13974738

申请日：2013-08-23

Applicant: JSP Corporation

Inventor： Kazuhiko MORITA ,  Hirotoshi KAKUTA ,  Ryuichi TANIGUCHI

IPC: B29D7/01

CPC classification number: B29D7/01 ,  B29C44/24 ,  B29C47/0021 ,  B29C47/0026 ,  B29C47/0066 ,  B29C47/065 ,  B29C47/56 ,  B29K2023/0633 ,  B29K2023/12 ,  B29K2105/0094 ,  B29L2009/00 ,  B32B5/20 ,  B32B7/02 ,  B32B27/065 ,  B32B27/08 ,  B32B27/327 ,  B32B2250/03 ,  B32B2250/05 ,  B32B2250/40 ,  B32B2266/025 ,  B32B2266/08 ,  B32B2270/00 ,  B32B2307/552 ,  B32B2307/56 ,  B32B2307/718 ,  B32B2553/02 ,  C08J9/0061 ,  C08J9/08 ,  C08J9/122 ,  C08J2201/03 ,  C08J2203/02 ,  C08J2203/06 ,  C08J2203/184 ,  C08J2205/052 ,  C08J2323/06 ,  C08J2423/06 ,  C08L23/06 ,  C08L23/0815 ,  C08L23/142

Abstract: A method for producing a multi-layer foam sheet having a foam layer and a resin layer laminated on at least one side of the foam layer, includes coextruding a foamable molten resin composition which contains a low density polyethylene and a physical blowing agent and a molten resin composition which contains 80 to 20% by weight of a specific ethylene-propylene random copolymer and 20 to 80% by weight of a specific polyethylene resin so that the foamable molten resin composition forms the foam layer and the molten resin composition forms the resin layer.

Abstract translation: 在泡沫层的至少一面层叠有发泡层和树脂层的多层发泡体片的制造方法包括共挤出含有低密度聚乙烯和物理发泡剂的发泡性熔融树脂组合物和熔融 树脂组合物，其含有80〜20重量％的特定乙烯 - 丙烯无规共聚物和20〜80重量％的特定聚乙烯树脂，使得可发泡熔融树脂组合物形成泡沫层，并且熔融树脂组合物形成树脂层 。