Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Treating polymer containing material or treating a solid...
Patent
1978-09-19
1981-05-19
Woo, Jay H.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Treating polymer containing material or treating a solid...
264176F, 2642108, 2642905, C08F 1002
Patent
active
042684706
ABSTRACT:
Oriented polymer material of high Young's modulus and low creep strain is provided by a process which comprises drawing polymer material having a weight average molecular weight greater than 300,000 and a ratio of weight average molecular weight to number average molecular weight greater than 5 at temperatures from 95.degree. C. to 140.degree. C. and at a rate such that the deformation ratio is greater than 18.
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Capaccio Giancarlo
Ward Ian M.
National Research Development Corporation
Woo Jay H.
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