发明授权
- 专利标题: Polypropylene-based adhesive compositions
- 专利标题(中): 聚丙烯基粘合剂组合物
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申请号: US10720512申请日: 2003-11-24
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公开(公告)号: US07521507B2公开(公告)日: 2009-04-21
- 发明人: Kenneth Lewtas , Sudhin Datta , Charles Cozewith , Bruce A. Harrington , David J. Lohse , Olivier J. F. Georjon , Anthony G. Karandinos , Keith A. Nelson , Jean M. Tancrede
- 申请人: Kenneth Lewtas , Sudhin Datta , Charles Cozewith , Bruce A. Harrington , David J. Lohse , Olivier J. F. Georjon , Anthony G. Karandinos , Keith A. Nelson , Jean M. Tancrede
- 申请人地址: US TX Houston
- 专利权人: ExxonMobil Chemical Patents Inc.
- 当前专利权人: ExxonMobil Chemical Patents Inc.
- 当前专利权人地址: US TX Houston
- 主分类号: C08F4/6192
- IPC分类号: C08F4/6192 ; C08F4/6592 ; C08F210/06 ; C08L23/14
摘要:
An adhesive blend is described that can include a semi-crystalline copolymer of propylene and at least one comonomer selected from the group consisting of ethylene and at least one C4 to C20 α-olefin, the copolymer having a weight average molecular weight (Mw) from about 15,000 to about 200,000; an melt index (MI) from about 7 dg/min to about 3000 dg/min as measured by ASTM D 1238(B), and a (Mw/Mn) of approximately 2. Various production processes are also described. Also described are adhesive compositions and methods for making adhesive compositions having polymers or polymer blends with melt flow rates (MFRs) equal to and above 250 dg/min. at 230° C. Certain specific embodiments of the invention involve the use of a free radical initiator, e.g., a peroxide.
公开/授权文献
- US20040110886A1 Polypropylene-based adhesive compositions 公开/授权日:2004-06-10