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1. 发明申请

US20230111050A1 BLOCK-COPOLYMER PELLETS, TACKY ADHESIVE COMPOSITION, AND STRETCH FILM 有权
公开(公告)号：US20230111050A1
公开(公告)日：2023-04-13
申请号：US17904593
申请日：2021-02-17
申请人： ZEON CORPORATION
发明人： Yuta ISHII , Atsushi NOZAWA
IPC分类号： C08L53/02 , C08L23/06 , C09J7/30 , C08J3/12
摘要： A block-copolymer pellet having 100 parts by weight of a pellet-shaped article of a block copolymer (A) and 0.01 to 5 parts by weight of a hydrocarbon-based dusting agent (B) is provided, wherein the block copolymer (A) has at least one aromatic vinyl polymer block and at least one conjugated diene polymer block, the hydrocarbon-based dusting agent (B) has a BET specific surface area of 0.50 to 3.00 m2/g, a volume average particle size of 2.0 to 20 μm, a bulk density of 0.10 to 0.34 g/cm3, and a melting point of 75° C. or higher, and the block-copolymer pellet has a Shore A hardness of 10 to 80, and a BET specific surface area of 0.001 to 0.05 m2/g measured by a Kr adsorption method.

2. 发明申请

US20170369699A9 BLOCK COPOLYMER COMPOSITION, PRODUCTION METHOD THEREFOR, AND FILM 有权
公开(公告)号：US20170369699A9
公开(公告)日：2017-12-28
申请号：US15107179
申请日：2014-12-26
申请人： ZEON CORPORATION
发明人： Ryoji ODA , Yuta ISHII
IPC分类号： C08L53/02 , C08J5/18
CPC分类号： C08L53/02 , A61F13/49009 , C08J5/18 , C08J2353/02 , C08L2203/16 , C08L2205/025
摘要： The present invention provides a block copolymer composition comprising a block copolymer A represented by formula (A) and a block copolymer B represented by formula (B), the block copolymer composition having a water content of 200 ppm by weight or less when the block copolymer composition has been formed in a shape of pellets, dried, and allowed to stand at a temperature of 37° C. and a relative humidity of 70% for 24 hours. In the formulas, Ar1a, Ar1b, and Ar2b are aromatic vinyl polymer blocks having a weight average molecular weight of 6,000-18,000, Ar2a is an aromatic vinyl polymer block having a weight average molecular weight of 40,000-400,000, and Da and Db are specific conjugated diene polymer blocks. The block copolymer composition has a high modulus of elasticity, exhibits low tension set, and ensures that the formation of a hole is prevented when a film is formed by melt-forming the block copolymer composition. Ar1a-Da-Ar2a (A) Ar1b-Db-Ar2b (B)

3. 发明申请

US20170009070A1 BLOCK COPOLYMER COMPOSITION, PRODUCTION METHOD THEREFOR, AND FILM 有权
标题翻译：嵌段共聚物组合物，其制备方法和薄膜
公开(公告)号：US20170009070A1
公开(公告)日：2017-01-12
申请号：US15107179
申请日：2014-12-26
申请人： ZEON CORPORATION
发明人： Ryoji ODA , Yuta ISHII
IPC分类号： C08L53/02 , C08J5/18
CPC分类号： C08L53/02 , A61F13/49009 , C08J5/18 , C08J2353/02 , C08L2203/16 , C08L2205/025
摘要： The present invention provides a block copolymer composition comprising a block copolymer A represented by formula (A) and a block copolymer B represented by formula (B), the block copolymer composition having a water content of 200 ppm by weight or less when the block copolymer composition has been formed in a shape of pellets, dried, and allowed to stand at a temperature of 37° C. and a relative humidity of 70% for 24 hours. In the formulas, Ar1a, Ar1b, and Ar2b are aromatic vinyl polymer blocks having a weight average molecular weight of 6,000-18,000, Ar2a is an aromatic vinyl polymer block having a weight average molecular weight of 40,000-400,000, and Da and Db are specific conjugated diene polymer blocks. The block copolymer composition has a high modulus of elasticity, exhibits low tension set, and ensures that the formation of a hole is prevented when a film is formed by melt-forming the block copolymer composition. Ar11-Da-Ar2a (A) Ar1b-Db-Ar2b (B)
摘要翻译：本发明提供包含式（A）表示的嵌段共聚物A和式（B）所示的嵌段共聚物B的嵌段共聚物组合物，嵌段共聚物组合物的含水量为200重量ppm以下时，组合物已经形成为颗粒形状，干燥并在37℃的温度和70％的相对湿度下静置24小时。式中，Ar1a，Ar1b，Ar2b为重均分子量为6000〜1800的芳香族乙烯基聚合物嵌段，Ar2a为重均分子量为40,000〜40000的芳香族乙烯基聚合物嵌段，D a和d b是特定的共轭二烯聚合物嵌段。嵌段共聚物组合物具有高弹性模量，显示低张力设定，并且确保当通过熔融形成嵌段共聚物组合物形成膜时，防止形成孔。 €ƒ€€ƒ€ƒ€ƒ€ƒ€ƒAr1a -D a -Ar2 a€ƒ€ƒ€ƒ€（ƒ）€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ €ƒAr1b -D b -Ar2 b€ƒ€ƒ€ƒ€ƒ（B）

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