REFRIGERANT-TRANSPORTING HOSE
    8.
    发明公开

    公开(公告)号:US20240263723A1

    公开(公告)日:2024-08-08

    申请号:US18580757

    申请日:2022-07-08

    摘要: Provided is a refrigerant-transporting hose having a low gas permeability of steam, fluorocarbons, or the like, and being flexible and light-weight. The refrigerant-transporting hose includes at least an outer layer, a reinforcing layer, and an inner layer. The outer layer has a layer composed of a thermoplastic resin composition A, and the inner layer has a layer composed of a thermoplastic resin composition B. The thermoplastic resin composition A has a sea-island structure in which a thermoplastic resin a containing a polyolefin resin serves as the matrix and from 51 to 85 mass % of an elastomer a containing a butyl elastomer serves as the domains. The thermoplastic resin composition B has a sea-island structure in which a thermoplastic resin b containing a polyamide resin serves as the matrix and an elastomer b containing a butyl elastomer serves as the domains.