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AssigneeTonen Chemical Corporation
InventorsPatrick Brant, Jeffrey L. Brinen, Zerong Lin, Koichi Kono, Kohtaro Kimishima, Hiroyuki Ozaki
Estimating the term…
Disclosed herein is a polymer composition, its manufacture and use, said composition may comprise greater than about 90 mole % propylene monomer, and having a unique combination of properties, including one or more of the following: a heat of fusion of more than about 108 J/g, a melting point of 165° C. or higher, a Melt Flow Rate so low that it is essentially not measurable and a molecular weight of greater than about 1.5×106. Further disclosed herein are blends or mixtures of the present novel polymer composition and products, such as, for example, microporous film structures and the like comprising same.
A polymeric composition comprising greater than about 90 mole % propylene monomer, said composition having an intrinsic viscosity greater than about 10 dl/g, a heat of fusion greater than about 108 J/g, a melting point of 165° C. or greater, a molecular weight greater than about 1.5×106, a molecular weight distribution of from about 2.5 to about 7, a Melt Flow Rate at 230° C. of less than about 0.01 dg/minute, an amount of extractable species of 0.5 wt. % or less based on the weight of the polymeric composition, and stereo defects less than about 50 per 10,000 carbon atoms.
A composition comprising polyethylene and a propylene polymer composition comprising greater than about 90 mole % propylene monomer, said propylene polymer composition having an intrinsic viscosity greater than about 10 dl/g, a heat of fusion greater than about 108 J/g, a melting point of 165° C. or greater, a molecular weight greater than about 1.5×106, a molecular weight distribution of from about 2.5 to about 7, a Melt Flow Rate at 230° C. of 0.2 dg/minute or less, and stereo defects less than about 50 per 10,000 carbon atoms.
Dependencies are inferred from the claim text.