POLYACRYLATE-BASED GRAFT COPOLYMER

    公开(公告)号:US20230026134A1

    公开(公告)日:2023-01-26

    申请号:US17785602

    申请日:2020-11-12

    Abstract: The invention relates to a polyacrylate-based graft copolymer comprising a polyacrylate backbone and polyolefin side chains grafted thereon, wherein the graft copolymer is prepared by reacting a first polymer and a second polymer, wherein the first polymer comprises recurring units having the structure (I) and optionally further recurring units having the structures (II): Formulae (I), (II) wherein R1, R3 is H or CH3 and R2 is a hydrocarbon moiety comprising 1 to 6 carbon atoms, one of R4 and R5 is H and the other one of R5 and R4 is COOR2, C═N, Cl, or an aliphatic or aromatic hydrocarbon moiety optionally containing one or multiple hetero atom functionalities, wherein R2 in (I) is different from R2 in (II) and the second polymer is a functionalized polyolefin having one or multiple hydroxyl functional groups, wherein the graft copolymer is formed by transesterification of the COOR2 group of (1) or (II) with the hydroxyl functional group of the functionalized polyolefin.

    Bi-axially stretched article and silage film

    公开(公告)号:US10457023B2

    公开(公告)日:2019-10-29

    申请号:US15036328

    申请日:2014-11-14

    Abstract: The present invention relates to biaxially stretched article obtained by stretching a thermoplastic composition in a machine direction and a transverse direction at elevated temperature, said thermoplastic composition comprising: —a polyolefin phase containing at least one polyolefin, —a starch phase containing thermoplastic starch, —at least one compatibilizer selected from the group consisting of ethylene vinyl alcohol copolymers, block saponified polyvinyl acetate and random terpolymers of ethylene, butylacrylate and maleic anhydride, wherein the total of the at least one polyolefin, the thermoplastic starch and the at least one compatibilizer is more than 80 wt % of the weight of the thermoplastic composition and wherein the article has a layered morphology with alternating layers of starch phase and polyolefin phase, said layers of starch phase and polyolefin phase extending in machine direction and transverse direction.

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