Soft propylene polymer blend with high melt strength
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United States of America Patent
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Oct 23, 2001
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app pub date -
Jun 19, 2000
filing date -
Apr 19, 1999
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Abstract
A polymer blend having a high melt strength and a low Young's modulus after irradiation of the polymers contains (1) a propylene homopolymer or copolymer having an isotactic index of greater than 90 and (2) a propylene homopolymer or copolymer having a crystallinity of <24% made using a metallocene catalyst. The blend can be used for extrusion coating (including fabric coating), foam extrusion, blow molding, and thermoforming applications.
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