Polymer materials
AssigneeNational Research Development Corporation
InventorsIan MacMillan Ward, Giancarlo Capaccio
Life of this patent
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Abstract
An oriented high density polyethylene polymer material having a weight average molecular weight of less than 200,000, a number average molecular weight of less than 20,000, a ratio of weight average molecular weight M.sub.w to number average molecular weight M.sub.n such that for M.sub.n > 10.sup.4, M.sub.w /M.sub.n < 8 and for M.sub.n < 10.sup.4, M.sub.w /M.sub.n < 20, and a Young's modulus greater than 3 .times. 10.sup.10 N/m.sup.2.
Claims9
An oriented high density polyethylene polymer material having a density of from 0.85 to 1.0 gms/cm.sup.3, a weight average molecular weight of less than 200,000, a number average molecular weight of less than 20,000, a ratio of weight average molecular weight M.sub.w to number average molecular weight M.sub.w such that for M.sub.n >10.sup.4, M.sub.w /M.sub.n <8 and for M.sub.n <10.sup.4, M.sub.w /M.sub.n <20, and a Young's modulus as hereinbefore defined greater than 3 .times. 10.sup.10 N/m.sup.2.
Dependencies are inferred from the claim text.