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公开(公告)号:US10464253B2
公开(公告)日:2019-11-05
申请号:US15300527
申请日:2015-03-26
申请人: KURARAY CO., LTD.
IPC分类号: B29C55/16 , B32B27/30 , B29C55/12 , C08J5/18 , B29C55/00 , B29C55/02 , G02B5/30 , G02B1/14 , B32B27/08 , B32B27/36 , B44C3/02 , B29K33/00 , B29K69/00 , B29K425/00
摘要: A method of manufacturing a biaxially stretched film according by: (I) preheating a thermoplastic resin film to a temperature in a rubbery plateau region in a storage elastic modulus curve; (II) biaxially stretching the thermoplastic resin film under a condition that a stretching speed is 500%/min or higher while heating the thermoplastic resin film to the temperature in the rubbery plateau region; (III) cooling the thermoplastic resin film after the biaxially stretching (II) to a temperature in a glass-to-rubber transition region or a glass region in the storage elastic modulus curve; and (IV) relaxing the thermoplastic resin film after the cooling (III) at a temperature in the glass-to-rubber transition region.
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公开(公告)号:US10350864B2
公开(公告)日:2019-07-16
申请号:US15025002
申请日:2014-09-24
申请人: KURARAY CO., LTD.
发明人: Hiroshi Oshima , Toshiyuki Zento , Naoto Fukuhara , Shinya Oshita
IPC分类号: B32B27/32 , B32B7/12 , B32B27/08 , C08L33/10 , C08L23/08 , C08L53/02 , C09J7/38 , C09J133/08 , B32B27/30 , C09J7/24
摘要: Provided is a thermoplastic polymer composition containing an aromatic vinyl-based block copolymer (a-1) having a number average molecular weight of 30,000 to 200,000, the aromatic vinyl-based block copolymer containing a polymer block F containing a structural unit derived from an aromatic vinyl-based monomer as a main component and a hydrogenated or non-hydrogenated polymer block G containing a structural unit derived from a conjugated diene monomer or an isobutylene monomer as a main component; an acrylic polymer (a-2); an olefin-based polymer containing polar groups (a-3); and a softening agent (a-4), at the proportions that satisfy the following Expressions (1) to (3): 0.05≤W(a-2)/W(a-1)≤9 (1) 0.1
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