Slit film tape compositions for improved tenacity and methods for making same

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United States of America Patent

PATENT NO 9062169
APP PUB NO 20120184666A1
SERIAL NO

13392227

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Slit film tapes comprising (i) 1 to 50 wt % of a propylene elastomer based upon the total weight of the blend comprising 70 wt % to 95 wt % propylene and about 5 wt % to about 30 wt % alpha-olefin comonomer based upon total weight of the propylene elastomer. The propylene elastomer has a melt flow rate of 1 to 35 dg/min, a peak melting point of less than 115° C., and an mm triad tacticity of at least 70%; (ii) about 50 to about 99 wt % of a polypropylene based upon total weight of the blend comprising about 90 to about 100 mol % propylene wherein the polypropylene has a melt flow rate of 2 to 35 dg/min and a peak melting point of at least 130° C.; and (iii) 0.1 to 50 wt % of filler based upon the total weight of the blend.

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Patent Owner(s)

  • EXXONMOBIL CHEMICAL PATENTS INC.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gusain, Hari P Noida, IN 1 5
Leysen, Willy J J Shanghai, CN 7 34

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