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公开(公告)号：US11525045B2
公开(公告)日：2022-12-13
申请号：US16832559
申请日：2020-03-27
发明人： Michal Elizabeth Porter , Mark Alan Barger , Yiyong He , Stéphane Costeux , Gerald F Billovits , Wenyi Huang , Edoardo Nicoli
IPC分类号： C08G63/64 , C08J9/14 , C08G63/672
摘要： Chemically modified polyesters, foamable compositions thereof that form low density foams, and methods of making the foamable compositions and foams are disclosed. The compositions comprise an amorphous copolyester, or amorphous co-polyesterpolycarbonate or amorphous co-polyesterpolyether or combination thereof. Additionally, uses for the low density foams are disclosed.
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公开(公告)号：US11680159B2
公开(公告)日：2023-06-20
申请号：US17022290
申请日：2020-09-16
IPC分类号： C08L23/16 , C08F210/16 , C08L23/12 , C08L53/00 , B29D7/01 , B29D99/00 , B29C55/00 , B29C55/04 , B29L31/00 , B29K23/00
CPC分类号： C08L23/16 , B29C55/005 , B29C55/04 , B29D7/01 , B29D99/005 , C08L23/12 , C08L53/00 , B29K2023/12 , B29K2023/16 , B29L2031/712 , C08F210/16 , C08L2203/02 , C08L2203/162 , C08L2203/30
摘要： Microporous polymer films and methods of making same are disclosed. The microporous polymer film comprises: one or more polypropylene copolymer, said polypropylene copolymer comprising one or more polypropylene homopolymer chain segments and one or more ethylene-containing copolymer chain segments; wherein the microporous polymer film comprises: (i) polypropylene homopolymer chain segments in total amount of from 50-82 wt. %, based on the weight of the microporous polymer film; (ii) one or more ethylene-containing copolymer chain segments in total amount of from 18-50 wt. %, based on the weight of the microporous polymer film, wherein at least a portion of the ethylene-containing copolymer chain segments comprises polymerized units of ethylene in an amount of at least 45 wt. %, based on the weight of the ethylene-containing copolymer chain segments.
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