Film of polymer mixture containing 4-methyl-1-petene polymer

Details Film of polymer mixture containing 4-methyl-1-petene polymer Film of polymer mixture containing 4-methyl-1-petene polymer

1984-07-24

1985-10-08

Seccuro, Carman

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

Synthetic resins

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

C08L 2320, C08L 2314

Patent

active

045461503

ABSTRACT:
A film composed substantially of a polymer mixture containing a 4-methyl-1-pentene polymer, said polymer mixture comprising (A) the 4-methyl-1-pentene polymer and (B) a copolymer of propylene and an alpha-olefin, the propylene/alpha-olefin copolymer (B) containing 40 to 87 mole % of the propylene component and a heat of crystal fusion of not more than 80 joules/g, and the content of the propylene/alpha-olefin copolymer (B) being 5 to 70% by weight based on the total weight of the 4-methyl-1-pentene polymer (A) and the propylene/alpha-olefin copolymer (B).

REFERENCES:
patent: 3458604 (1969-07-01), Palmer
patent: 3544662 (1970-12-01), Polestak et al.
patent: 3692712 (1972-09-01), Crouch et al.
patent: 3880952 (1975-04-01), Brackman

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