Polyethylene blend and 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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Details

524528, C08L 2306, C08L 2318, C08L 2320

Patent

active

045873038

ABSTRACT:
A blend having improved optical and good mechanical properties comprising (A) at least 75 weight %, preferably 85-95 weight %, of ethylene hydrocarbon copolymer (LLDPE) of density 0.916 to 0.930 manufactured by the transition metal catalyzed gas-fluidized bed process and (B) not less than 1 weight %, of low density polyethylene or ethylene copolymer made by the free radical catalyzed high pressure process. The LLDPE (A) is preferably ethylene/butene-1 or ethylene/hexene-1 copolymer. The high pressure polymer (B) is preferably an autoclave LDPE having a high die swell ratio and a MIR below 50.

REFERENCES:
patent: 3176052 (1965-03-01), Peticolas
patent: 4243619 (1981-01-01), Fraser et al.
patent: 4337188 (1982-06-01), Climenhage
patent: 4339507 (1982-07-01), Kurtz et al.

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