Production of polyethylene materials having improved...

C - Chemistry – Metallurgy – 08 – J

Patent

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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

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