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公开(公告)号:US11041070B2
公开(公告)日:2021-06-22
申请号:US16471827
申请日:2017-12-14
IPC分类号: C08L53/02 , B65D75/00 , C08F297/04 , C08J5/18
摘要: Polymer compositions comprising styrene butadiene block-copolymers (SBC) can be used for shrink-wrap films, a stiff star-shaped SBC block copolymer A having two short branches of a single copolymer block (B/S)Ai and two long branches of the structure St-[(B/S)A]n-(B/S)Ai or [(B/S)A]n-(B/S)Ai are used in said polymer composition, and the production of shrink-wrap films and of multilayer films is described.
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公开(公告)号:US11879059B2
公开(公告)日:2024-01-23
申请号:US16487211
申请日:2018-02-19
发明人: Michiel Verswyvel , Norbert Niessner , Daniel Wagner , Michael Schuster , Geert Verlinden , Bart Van-Den-Bossche , Konrad Knoll
CPC分类号: C08L53/02 , C08J5/18 , C08J2353/02 , C08J2453/02 , C08L2203/162 , C08L2205/025 , C08L2205/03 , C08L2205/06
摘要: Polymer compositions comprising stiff and tough star shaped styrene butadiene block-copolymers A1 and A2 can be used for making shrink films. Block copolymer A2 preferably has the structure
with hard blocks Se and Si, hard random copolymer blocks (B/S)Ae, soft random copolymer blocks (B/S)B coupled by a coupling agent X.
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