Polyethylene blends

Details Polyethylene blends Polyethylene blends

1993-04-16

1994-06-07

Seccuro, Jr., Carman J.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

C08L 2306, C08L 2308, C08L 2316

Patent

active

053190297

ABSTRACT:
A composition of matter comprising: (a) 5 to 40 weight percent inclusive of a low molecular weight ethylene resin made using a titanium catalyst system said resin having a density greater than 0.955 grams per cubic centimeter, a melt index greater than 25 grams per 10 minutes, and a heterogeneity index between 2 and 8 inclusive; and (b) 60 to 95 weight percent inclusive of a high molecular weight ethylene copolymer resin made using a chromium catalyst system said resin having a density of at least 0.93 grams per cubic centimeter, a high load melt index between 1.5 and 15 grams per 10 minutes, and a heterogeneity index between 6 and 100 inclusive; wherein said composition of matter has a melt index greater than 0.05 grams per 10 minutes.

REFERENCES:
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patent: 3179720 (1965-04-01), Hilmer
patent: 4336352 (1982-06-01), Sakurai et al.
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patent: 4617352 (1986-10-01), Page et al.
patent: 4824912 (1989-04-01), Su
patent: 4835219 (1989-05-01), Tajima et al.
patent: 4840996 (1989-06-01), Wild et al.
patent: 4842922 (1989-06-01), Krupp et al.
patent: 4954391 (1990-09-01), Katani et al.
Modern Plastics-1963 ED-pp. 227-1962.

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