C - Chemistry – Metallurgy – 08 – J
Patent
C - Chemistry, Metallurgy
08
J
18/627, 18/796
C08J 5/18 (2006.01) B29C 47/00 (2006.01) B29C 55/00 (2006.01) C08F 2/38 (2006.01) C08F 110/02 (2006.01) C08L 23/06 (2006.01) D01F 6/04 (2006.01)
Patent
CA 1331264
ABSTRACT OF THE DISCLOSURE A process for producing polyethylene materials is disclosed in which ultrahigh molecular polyethylene is molded by compression, extrusion, rolling and stretching at a solid phase and at specified temperatures. The polymer is formed by a selected multi-stage polymerization with the use of a composite catalyst of specified compositions. Fibers or films can be obtained with improved strength and modulus qualities.
605014
Kamiishi Hirofumi
Matsuura Kazuo
Sano Akira
Gowling Lafleur Henderson Llp
Nippon Mitsubishi Oil Corporation
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