- 专利标题: Polyolefin compatibilizer composition for compounding to improve stiffness and impact balance
-
申请号: US15648816申请日: 2017-07-13
-
公开(公告)号: US10723049B2公开(公告)日: 2020-07-28
- 发明人: Ryan Kramb , Jeanine A. Smith , Fabio Ceccarani
- 申请人: EQUISTAR CHEMICALS, LP
- 申请人地址: US TX Houston
- 专利权人: Equistar Chemicals, LP
- 当前专利权人: Equistar Chemicals, LP
- 当前专利权人地址: US TX Houston
- 主分类号: B29C45/00
- IPC分类号: B29C45/00 ; C08L23/16 ; C08L23/14 ; C08L23/12 ; B29K101/12
摘要:
This disclosure provides for compatibilizer compositions that are useful in compounding polypropylenes and ethylene elastomeric copolymers for injection molding applications. The compatibilizer includes a combination of: Component A of polypropylene homopolymers or polypropylene copolymers containing small amounts of ethylene; and Component B of propylene bipolymers with ethylene and/or other α-olefin comonomers, the bipolymer having a relatively high proportion of propylene moieties, for example, 50-75% propylene. Compared to known or conventional compatibilizer formulations, the bipolymer Component B is relatively propylene rich and generally can be used in the injection molding composition in lower concentrations.