D - Textiles – Paper – 01 – F
Patent
D - Textiles, Paper
01
F
18/617, 18/798
D01F 1/00 (2006.01) C08F 255/02 (2006.01) C08L 23/06 (2006.01) C08L 43/04 (2006.01) D01F 6/04 (2006.01) D01F 11/06 (2006.01)
Patent
CA 1279167
Abstract of the Disclosure If ultra-high-molecular-weight polyethylene having an intrinsic viscosity (?) of at least 5 d?/g is grafted with a silane compound in the presence of a radical initiator and extrusion-molded and the extrudate is impregnated with a silanol condensation catalyst after or during drawing and is then exposed to water to effect crosslinking, there is obtained a novel molecularly oriented molded article in which increase of the melting temperature, which is not observed in conventional draw- molded or crosslinked molded articles of polyethylene, can be attained, and even if this molecularly oriented molded article is exposed to a temperature of 180°C for 10 minutes, the molded article is not fused but the shape is retained and even after this heat history, a high strength retention ratio can be maintained. In this draw-molded article, the adhesiveness and creep resistance are prominently improved while high elastic modulus and high tensile strength inherent to a draw- molded article of ultra-high-molecular-weight polyethylene are retained.
523712
Mantoku Hitoshi
Yagi Kazuo
Mitsui Chemicals Incorporated
Smart & Biggar
LandOfFree
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