Invention Grant
- Patent Title: Solid state modification of propylene polymers
- Patent Title (中): 丙烯聚合物的固态改性
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Application No.: US11362625Application Date: 2006-02-27
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Publication No.: US07750086B2Publication Date: 2010-07-06
- Inventor: Andrew J. Scheie , Manivakkam J. Shankernarayanan
- Applicant: Andrew J. Scheie , Manivakkam J. Shankernarayanan
- Applicant Address: US TX Houston
- Assignee: Equistar Chemicals, LP
- Current Assignee: Equistar Chemicals, LP
- Current Assignee Address: US TX Houston
- Agent Gerald A. Barabcka; Jonathan L. Schuchardt
- Main IPC: C08F8/00
- IPC: C08F8/00 ; C08F8/48 ; C08F8/50
Abstract:
A process for improving the melt characteristics of propylene-ethylene random block and impact copolymers is provided. The process involves contacting a powder of the copolymer with a low level of free radical initiator followed by heating at a temperature below the melting point of the copolymer and above the free radical initiation temperature.
Public/Granted literature
- US20070203305A1 Solid state modification of propylene polymers Public/Granted day:2007-08-30
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