Process of manufacturing ultrahigh molecular weight linear polye

Details Process of manufacturing ultrahigh molecular weight linear polye Process of manufacturing ultrahigh molecular weight linear polye

1990-03-23

1991-08-06

Thurlow, Jeffery

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

528481, 528483, 528502, 528503, 264 85, 264126, 264322, 26433117, 264348, 264313, 623 22, 4254052, B29C 4312, C08F11002, A61F 232

Patent

active

050379283

ABSTRACT:
A process for preparing an ultrahigh molecular weight linear polyethylene (UHMWLPE) exhibiting a combination of properties including a creep resistance of less than 1% demonstrated under exposure to a temperature of 23.degree. C. (+ or -1.degree. C.) and a relative humidity of 50 (+ or -2% for 24 hours under a compression of 1000 psi) without sacrificing excellent tensile and flexural properties. The invention includes the use of an inert gas and a prescribed pattern of heating and cooling including a further heat and cooling treatment to create the superior properties of the UHMWLPE. Also included is the product of the process invention.

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