Co-extrudable adhesives with good age-down resistance

Details Co-extrudable adhesives with good age-down resistance Co-extrudable adhesives with good age-down resistance

1995-03-28

1997-07-01

Michl, Paul R.

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

Synthetic resins

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

524528, 525 74, 525 78, 525240, C08F 800

Patent

active

056439997

ABSTRACT:
Co-extrudable adhesive compositions which have excellent adhesion, and which bond well to ionomers, even after long aging, are formed by blending polyethylene with a very low density of 0.86 to 0.91 with polyethylene having a density of 0.91 to 0.935, together with a hydrocarbon elastomer. Acid grafting of any of the components is preferably present. More than an insubstantial amount of polyethylene with higher density than 0.935 is deleterious to initial or age-down peel strength of the adhesive ionomer bond, and is not part of the adhesive composition.

REFERENCES:
patent: 3868433 (1975-02-01), Bartz et al.
patent: 4198327 (1980-04-01), Matsumoto et al.
patent: 4440911 (1984-04-01), Inoue et al.
patent: 4684576 (1987-08-01), Tabor et al.

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