Invention Grant
- Patent Title: Disentangled ultra high molecular weight polyethylene graft co-polymers and a process for preparation thereof
- Patent Title (中): 分离的超高分子量聚乙烯接枝共聚物及其制备方法
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Application No.: US14427263Application Date: 2013-09-10
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Publication No.: US09574040B2Publication Date: 2017-02-21
- Inventor: Satya Srinivasa Rao Gandham , Ajit Behari Mathur , Uma Sankar Satpathy , Krishna Renganath Sarma , Raksh Vir Jasra
- Applicant: RELIANCE INDUSTRIES LIMITED
- Applicant Address: IN Mumbai
- Assignee: RELIANCE INDUSTRIES LIMITED
- Current Assignee: RELIANCE INDUSTRIES LIMITED
- Current Assignee Address: IN Mumbai
- Agency: Harness, Dickey & Pierce, P.L.C.
- Priority: IN2616/MUM/2012 20120910
- International Application: PCT/IN2013/000547 WO 20130910
- International Announcement: WO2014/045303 WO 20140327
- Main IPC: C08F255/02
- IPC: C08F255/02 ; C08F255/10 ; C08F255/08

Abstract:
In accordance with the present disclosure, there is provided a solid state graft copolymerization process for the preparation of disentangled ultrahigh molecular weight polyethylene graft copolymers in which disentangled ultrahigh molecular weight polyethylene is admixed with at least one functional monomer and a free radical initiator to obtain a mixture; and the mixture thus obtained is subjected to solid state polymerization to obtain a graft copolymer of disentangled ultrahigh molecular weight polyethylene. The graft copolymers of disentangled ultrahigh molecular weight polyethylene shows better crystallization temperature that ranges between 117° C. to 121° C. and improved decomposition temperature (T100) that ranges between 460° C. to 480° C.
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