Invention Grant
US08722817B2 Process to make long chain branched (LCB), block, or interconnected copolymers of ethylene
有权
制备乙烯的长链支化（LCB），嵌段或互连共聚物的方法
- Patent Title: Process to make long chain branched (LCB), block, or interconnected copolymers of ethylene
- Patent Title (中): 制备乙烯的长链支化（LCB），嵌段或互连共聚物的方法
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Application No.: US12959768Application Date: 2010-12-03
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Publication No.: US08722817B2Publication Date: 2014-05-13
- Inventor: Teresa P. Karjala , Sean W. Ewart , Christopher R. Eddy , Alfred E. Vigil, Jr. , Mehmet Demirors , Sarat Munjal , Wallace W. Yau
- Applicant: Teresa P. Karjala , Sean W. Ewart , Christopher R. Eddy , Alfred E. Vigil, Jr. , Mehmet Demirors , Sarat Munjal , Wallace W. Yau
- Applicant Address: US MI Midland
- Assignee: Dow Global Technologies LLC
- Current Assignee: Dow Global Technologies LLC
- Current Assignee Address: US MI Midland
- Main IPC: C08F2/00
- IPC: C08F2/00 ; C08F4/76 ; C08F4/64 ; C08F8/00
Abstract:
A process is taught, comprising polymerizing ethylene in the presence of a catalyst to form a crystalline ethylene-based polymer having a crystallinity of at least 50% as determined by DSC Crystallinity in a first reactor or a first part of a multi-part reactor and reacting the crystalline ethylene-based polymer with additional ethylene in the presence of a free-radical initiator to form an ethylenic polymer in at least one other reactor or a later part of a multi-part reactor.
Public/Granted literature
- US20110130533A1 PROCESS TO MAKE LONG CHAIN BRANCHED (LCB), BLOCK, OR INTERCONNECTED COPOLYMERS OF ETHYLENE Public/Granted day:2011-06-02
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