Cold-stretchable, self-adhesive film composition

Details Cold-stretchable, self-adhesive film composition Cold-stretchable, self-adhesive film composition

1985-06-21

1986-11-25

Seccuro, 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...

525232, 525240, C08L 2318, C08L 2322, C08L 2328, C08L 2312

Patent

active

046249915

ABSTRACT:
A cold-stretchable, self-adhesive film composition comprising (a) from 88 to 97% by weight of an ethylene-.alpha.-olefin copolymer, the .alpha.-olefin having from 3 to 10 carbon atoms and the copolymer having a density of between 0.905 and 0.940 g/cm.sup.3 and a melt index of between 0.1 and 2 dg/minutes and; (b) from 3 to 12% by weight of a polymer selected from among polyisobutylene, atactic polypropylene, cis-polybutadiene and bromobutyl rubber. The film compositions find particular use in the automation of the spiral wrap-round packaging technique.

REFERENCES:
patent: 3645992 (1972-02-01), Elston
patent: 4170304 (1979-10-01), Huke
patent: 4205021 (1980-05-01), Morita et al.
patent: 4243619 (1981-01-01), Fraser et al.
patent: 4337188 (1982-06-01), Climenhage
patent: 4363904 (1982-12-01), Fraser et al.
patent: 4425268 (1984-01-01), Cooper
patent: 4426498 (1984-01-01), Inoue
patent: 4430457 (1984-02-01), Dobreski

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