Film for heat sealing and process of heat sealing

Details Film for heat sealing and process of heat sealing Film for heat sealing and process of heat sealing

1978-09-28

1981-11-24

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...

525 89, 525 98, 428462, 428513, 156 69, C08L 5302

Patent

active

043025544

ABSTRACT:
A film and a laminate using the film as a substrate which both are suitable for heat sealing and a process for heat sealing the film and the laminate are disclosed. The film comprises a blend of (I) at least one member selected from the group consisting of (A) elastomeric block copolymers of vinyl-aromatic compounds with conjugated diene compounds, (B) resinous block copolymers of vinyl-aromatic compounds with conjugated diene compounds and (C) vinyl-aromatic resins and/or modified vinyl-aromatic resins, and (II) an olefinic polymer.

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patent: 3299174 (1967-01-01), Kuhre
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patent: 3459830 (1969-08-01), Legge
patent: 3459831 (1969-08-01), Luftglass
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patent: 3666834 (1972-05-01), Bullard
patent: 3678134 (1972-07-01), Middlebrook
patent: 3894117 (1975-07-01), Agouri
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patent: 4195136 (1980-03-01), Sato
patent: 4197377 (1980-04-01), Bohn

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