Ethylene polymer blends and process for forming film

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...


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264564, 264171, C08L 2318, C08L 2306




Ethylene polymer blends of a high molecular weight ethylene polymer, preferably an ethylene-mono-1-olefin copolymer, and a low molecular weight ethylene polymer preferably an ethylene homopolymer, both preferably with narrow molecular weight distribution and low levels of long chain branching exhibit excellent film properties and good environmental stress crack behavior superior to that expected for polyethylene of comparable density and melt flow. These resins are useful for the manufacture of film or in blow molding techniques, the production of pipes and wire coating.

patent: 2868762 (1959-01-01), Oakes
patent: 3179720 (1965-04-01), Hillmer
patent: 3183283 (1965-05-01), Reding
patent: 4230831 (1980-10-01), Sakurai et al.
patent: 4336352 (1982-06-01), Sakurai et al.


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