Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1999-06-21
2000-11-14
Wu, David W.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
5263481, 5263482, 5263486, 26421112, 26421119, 5253337, 525388, C08F 806, C08F21002
Patent
active
061471674
ABSTRACT:
A process for producing a polyethylene film composition, comprising melt extruding a linear copolymer of ethylene and at least one other olefin having from 3 to 8 carbon atoms, said linear copolymer having a bimodal distribution comprising a high molecular weight fraction having a weight average molecular weight of at least 600,000 and a low molecular weight fraction having a weight average molecular weight of less than 20,000 at a temperature of from 195 to 285.degree. C. in the presence of oxygen in an amount of from about 0.5 to about 6% by volume to improve bubble stability without any significant reduction in tear strength of film produced from said melt extruded linear copolymer.
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Brochure: Alathon. Occidental Chemical Corporation, 1990.
Garrison Philip J.
Mack Mark P.
Meas, Jr. James H.
Nygard Paula L.
Wallace Lawrence R.
Choi Ling-Siu
Equistar Chemicals LP
Horn Alec H.
Wu David W.
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