Invention Grant
- Patent Title: Thermoplastic polyolefin blends including block composites as compatibilizers
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Application No.: US16306130Application Date: 2017-05-24
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Publication No.: US11292897B2Publication Date: 2022-04-05
- Inventor: Olaf Henschke , Yahong Zhang , Wei Li , Hang Wu , Takahiko Ohmura , Yushan Hu , Ming Ming , Krischan Jeltsch
- Applicant: Dow Global Technologies LLC
- Applicant Address: US MI Midland
- Assignee: Dow Global Technologies LLC
- Current Assignee: Dow Global Technologies LLC
- Current Assignee Address: US MI Midland
- Priority: WOPCT/CN2016/084004 20160531
- International Application: PCT/US2017/034310 WO 20170524
- International Announcement: WO2017/210064 WO 20171207
- Main IPC: C08L23/08
- IPC: C08L23/08 ; C08L23/12 ; C08F10/06

Abstract:
A composition comprising (A) from 10 wt % to 90 wt % of a propylene component including at least one propylene based polymer having a propylene content of at least 50.0 wt %, based on the total weight of the propylene based polymer, and a melt flow rate from 0.5 g/10 min to 200.0 g/10 min (ASTM D-1238 at 230° C., 2.16 kg); (B) from 1 wt % to 60 wt % of a polyolefin elastomer; (C) from 1 wt % to 20 wt % of a block composite comprising (i) an ethylene-propylene copolymer, (ii) an isotactic polypropylene copolymer, and (iii) a block copolymer including an ethylene-propylene soft block that has a same composition as the ethylene-propylene copolymer of the block composite and an isotactic polypropylene hard block that has a same composition as the isotactic polypropylene copolymer of the block composite; and (D) optionally, from 0.1 wt % to 10 wt % of an antioxidant.
Public/Granted literature
- US20200332101A1 THERMOPLASTIC POLYOLEFIN BLENDS INCLUDING BLOCK COMPOSITES AS COMPATIBILIZERS Public/Granted day:2020-10-22
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