Invention Grant
- Patent Title: Multi-stage propylene polymer, process for producing the same, and propylene resin composition
- Patent Title (中): 多级丙烯聚合物，其制备方法和丙烯树脂组合物
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Application No.: US10594768Application Date: 2005-03-15
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Publication No.: US07732532B2Publication Date: 2010-06-08
- Inventor: Ryoichi Tsunori , Yasuhiko Otsuki , Tsutomu Onodera , Shohei Ikeda , Masayuki Shinohara
- Applicant: Ryoichi Tsunori , Yasuhiko Otsuki , Tsutomu Onodera , Shohei Ikeda , Masayuki Shinohara
- Applicant Address: JP Tokyo
- Assignee: Prime Polymer Co., Ltd.
- Current Assignee: Prime Polymer Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2004-103371 20040331
- International Application: PCT/JP2005/004487 WO 20050315
- International Announcement: WO2005/097842 WO 20051020
- Main IPC: C08L23/10
- IPC: C08L23/10
Abstract:
A multistage propylene-based polymer including the following components (A) and (B): (A) 5 to 20 wt % of a propylene homopolymer component or a copolymer component of propylene and an α-olefin with 2 to 8 carbon atoms having an intrinsic viscosity [η] of more than 10 dL/g in tetralin at 135° C.; and (B) 80 to 95 wt % of a propylene homopolymer component or a copolymer component of propylene and an α-olefin with 2 to 8 carbon atoms having an intrinsic viscosity [η] of 0.5 to 3.0 dL/g in tetralin at 135° C.
Public/Granted literature
- US20070208138A1 Multi-Stage Propylene Polymer, Process For Producing The Same, And Propylene Resin Composition Public/Granted day:2007-09-06
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