C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
400/6578, 18/716
C08L 23/04 (2006.01) B29C 45/00 (2006.01) B29C 67/00 (2006.01) B29C 67/24 (2006.01) C08F 297/08 (2006.01) C08L 23/10 (2006.01)
Patent
CA 2040262
- 17 - Process for Cold Forming Abstract of the Invention A process for the solid phase forming of an impact polypropylene copolymer comprising (a) providing an impact polypropylene copolymer comprising (i) a matrix, which is either a homopolymer of propylene or a copolymer of propylene and up to about 5 percent by weight of at least one other alpha-olefin based on the weight of the copolymer, and, incorporated into said matrix, (ii) a copolymer of ethylene and at least one other alpha-olefin, said copolymer having a crystallinity of at least about 20 percent and being present in the impact copolymer in an amount of at least about 10 percent by weight based on the total weight of the impact copolymer; and (b) forming the impact polypropylene copolymer at a temperature above the melting point of component (ii) but below the melting point of component (i).
Ficker Harold K.
Sim & Mcburney
Union Carbide Chemicals And Plastics Company Inc.
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