发明授权
- 专利标题: High flow, hydrogenated styrene-butadiene-styrene block copolymers and applications
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申请号: US13940663申请日: 2013-07-12
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公开(公告)号: US09771473B2公开(公告)日: 2017-09-26
- 发明人: Kathryn Wright , Hiroshi Kato
- 申请人: Kraton Polymers U.S. LLC
- 申请人地址: US TX Houston
- 专利权人: Kraton Polymers U.S. LLC
- 当前专利权人: Kraton Polymers U.S. LLC
- 当前专利权人地址: US TX Houston
- 代理商 Ekatherina Serysheva
- 主分类号: C08L53/02
- IPC分类号: C08L53/02 ; C09J153/02 ; C08K3/22 ; C08K3/26 ; C08K7/14 ; C08K5/07 ; C08K5/101
摘要:
The invention relates to unique applications for the novel high melt flow, low viscosity, selectively hydrogenated styrene-butadiene-styrene (hSBS) or selectively hydrogenated controlled distribution styrene-butadiene/styrene-styrene (hSBSS) block copolymers, wherein the melt flow rate of said block copolymer is at least 100 g/10 min. at 230° C. under 2.16 kg mass according to ASTM D1238. These block copolymers are novel and have the highest melt flow rate of any styrenic block copolymer also possessing high strength and elasticity. It has applications that prior to the present invention were not normally possible due to the normal low melt flow rate of styrenic block copolymers. The present invention also encompasses various fields of use such as a fiberglass hSBS or hSBSS reinforced mat, low viscosity hSBS or hSBSS coatings for industrial uses, hot melt adhesives prepared from hSBS or hSBSS blended with polyalpha-olefins, and elastic film, fiber, and nonwoven constructions using hSBS or hSBSS.
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