B - Operations – Transporting – 29 – C
Patent
B - Operations, Transporting
29
C
204/91.75
B29C 55/02 (2006.01) B29B 9/16 (2006.01) B29B 13/08 (2006.01) B29C 55/00 (2006.01) B29C 55/06 (2006.01) B29C 67/24 (2006.01) B29C 71/04 (2006.01) C08J 3/28 (2006.01) C08J 5/18 (2006.01) C08J 7/18 (2006.01) C08L 23/06 (2006.01) D01F 6/04 (2006.01) B29C 35/08 (2006.01)
Patent
CA 1275637
ABSTRACT High strength and modulus articles, such as filaments, fibers, tapes, films, tubes, bars or profiles, are prepared by irradiating a solid, particulate, lamellar, disentangled poly- ethylene with a Mw ? 4 x 105, transforming this polyethylene above the melt temperature into an article, cooling said article to below the melting point and stretching it in several steps at increasing temperature but below the melting point of the article. Advantages are i.e. the lower costs compared with the known pro- cesses, such as solid state extrusion or thermoreversible gel- ation.
516231
Bastiaansen Cornelis W. M.
Lemstra Pieter J.
Van Unen Lambert H. T.
Bastiaansen Cornelis W. M.
Dsm N.v.
Fetherstonhaugh & Co.
Lemstra Pieter J.
Stamicarbon B.v.
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