Title:
PROCESS FOR PRODUCING HIGH MELT FLOW POLYMERS
Document Type and Number:
WIPO Patent Application WO2001072873
Kind Code:
A3
Abstract:
Disclosed is a process for making polyolefin pellet products that contain at least one unreacted free radical generator which, when heated, undergo chemical degradation producing a low viscosity polymer. The process includes contacting the polyolefin pellet with the at least one free radical generator to coat the pellet, and contacting the coated pellets and at least one unreacted free radical generator at an elevated temperature and for a period of time sufficient for the free radical initiator to soak into the interior of the pellets. The process of the invention enables the production of polyolefin pellets having any desired amount of free radical generator and therefore, production of a desired viscosity, and improves the processability of the polyolefin pellet at customer fabrication facilities to thereby provide superior quality final articles.
Inventors:
AVGOUSTI MARIOS (US)
KHARAZI ALEX (US)
KHARAZI ALEX (US)
Application Number:
PCT/US2001/009838
Publication Date:
February 28, 2002
Filing Date:
March 28, 2001
Export Citation:
Assignee:
UNION CARBIDE CHEM PLASTIC (US)
AVGOUSTI MARIOS (US)
KHARAZI ALEX (US)
AVGOUSTI MARIOS (US)
KHARAZI ALEX (US)
International Classes:
C08F8/50; C08J3/12; C08J3/20; C08K5/14; C08L23/00; C08F110/06; (IPC1-7): C08J3/20; C08F8/50; C08L23/02; C08K5/14
Foreign References:
| EP0785226A2 | 1997-07-23 | |||
| EP0728796A2 | 1996-08-28 | |||
| EP0512571A1 | 1992-11-11 |
Other References:
PATENT ABSTRACTS OF JAPAN vol. 002, no. 093 (C - 019) 29 July 1978 (1978-07-29)
DATABASE WPI Section Ch Week 197520, Derwent World Patents Index; Class A17, AN 1975-33097W, XP002181342
DATABASE WPI Section Ch Week 197520, Derwent World Patents Index; Class A17, AN 1975-33097W, XP002181342
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