Invention Grant
US08389632B2 Co-continuous heterophase polymer compositions containing high melt strength polypropylene for extrusion coating
失效
含有高熔体强度聚丙烯的共连续异相聚合物组合物用于挤出涂布
- Patent Title: Co-continuous heterophase polymer compositions containing high melt strength polypropylene for extrusion coating
- Patent Title (中): 含有高熔体强度聚丙烯的共连续异相聚合物组合物用于挤出涂布
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Application No.: US13024053Application Date: 2011-02-09
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Publication No.: US08389632B2Publication Date: 2013-03-05
- Inventor: Chun Lee , Charles S. Holland , James R. Beren , Anthony J. De Nicola, Jr.
- Applicant: Chun Lee , Charles S. Holland , James R. Beren , Anthony J. De Nicola, Jr.
- Applicant Address: US TX Houston
- Assignee: Equistar Chemicals, LP
- Current Assignee: Equistar Chemicals, LP
- Current Assignee Address: US TX Houston
- Main IPC: C08F8/00
- IPC: C08F8/00 ; C08L9/00 ; C08L23/04 ; C08L23/10
Abstract:
A process of extruding a blend of an irradiated extrudate of a first propylene polymer and a non-irradiated second propylene polymer, where the first propylene polymer comprises a non-phenolic stabilizer. The irradiation of the first propylene polymer extrudate is conducted in a reduced oxygen environment, and the irradiated extrudate of the first propylene polymer and the non-irradiated second propylene polymer are blended at a temperature below their respective melting points. The blend has an ARPSW of ≦3.0 micron.
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