中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

36 records (took 0.022 seconds)

    A ONE-COMPONENT TYPE POLYURETHANE PREPOLYMER COMPOSITION
    12.
    发明申请
    A ONE-COMPONENT TYPE POLYURETHANE PREPOLYMER COMPOSITION 有权

    公开(公告)号：US20220403165A1

    公开(公告)日：2022-12-22

    申请号：US17597709

    申请日：2019-08-06

    Applicant: Dow Global Technologies LLC

    Inventor： Cheng Shen ,  Nan Wang ,  Gang Sun ,  Masayuki Suzuki ,  Jiawen Xiong ,  Wei Li

    IPC: C08L75/08 ,  C08G18/12 ,  C08G18/48

    Abstract: A one-component type polyurethane prepolymer composition comprises a reaction product formed through a reaction between reactants comprising (a) at least one polyisocyanate, and (b) a polyol blend comprising at least one bifunctional polyether polyol, wherein the bifunctional polyether polyol is a homopolymer of propylene oxide, homopolymer of butylene oxide, or copolymer of alkylene oxide, and has a number average molecular weight from 3000 g/mol to 9000 g/mol, and at least one trifunctional polyether polyol, wherein the trifunctional polyether polyol is a copolymer of alkylene oxide and end-capped with 10 wt % to 28 wt %, by the total weight of the trifunctional polyether polyol, of ethylene oxide, and has a number average molecular weight from 5000 g/mol to 8000 g/mol, wherein the bifunctional polyether polyol and the trifunctional polyether polyol are present in a parts by weight ratio from 4:1 to 2.5:1, and wherein the polyisocyanate and the polyol blend are present in a parts by weight ratio of from 1:7 to 1:2.5.

    Thermoplastic polyolefin blends including block composites as compatibilizers
    15.
    发明授权
    Thermoplastic polyolefin blends including block composites as compatibilizers 有权

    公开(公告)号：US11292897B2

    公开(公告)日：2022-04-05

    申请号：US16306130

    申请日：2017-05-24

    Applicant: Dow Global Technologies LLC

    Inventor： Olaf Henschke ,  Yahong Zhang ,  Wei Li ,  Hang Wu ,  Takahiko Ohmura ,  Yushan Hu ,  Ming Ming ,  Krischan Jeltsch

    IPC: C08L23/08 ,  C08L23/12 ,  C08F10/06

    Abstract: A composition comprising (A) from 10 wt % to 90 wt % of a propylene component including at least one propylene based polymer having a propylene content of at least 50.0 wt %, based on the total weight of the propylene based polymer, and a melt flow rate from 0.5 g/10 min to 200.0 g/10 min (ASTM D-1238 at 230° C., 2.16 kg); (B) from 1 wt % to 60 wt % of a polyolefin elastomer; (C) from 1 wt % to 20 wt % of a block composite comprising (i) an ethylene-propylene copolymer, (ii) an isotactic polypropylene copolymer, and (iii) a block copolymer including an ethylene-propylene soft block that has a same composition as the ethylene-propylene copolymer of the block composite and an isotactic polypropylene hard block that has a same composition as the isotactic polypropylene copolymer of the block composite; and (D) optionally, from 0.1 wt % to 10 wt % of an antioxidant.

Patent Agency Ranking