Composite thermoplastic films and a process for their preparatio

Details Composite thermoplastic films and a process for their preparatio Composite thermoplastic films and a process for their preparatio

1982-05-17

1983-10-11

Herbert, Jr., Thomas J.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Physical dimension specified

264176R, 428215, 4284763, 428515, 428516, 428518, 428521, 428913, B32B 2710, B32B 2708, B28B 320

Patent

active

044092865

ABSTRACT:
A composite film for packaging foods having at least one layer of a thermoplastic film of low density polyethylene, polypropylene, polybutene, polyamide, polystyrene or polyvinyl chloride having a thickness between 25 and 3,000 .mu.m, and another layer of a terpolymer film having a thickness between 10 and 100 .mu.m.
The terpolymer film contains from 88 to 98.7 mol % of units derived from ethylene, from 1 to 10 mol % of units derived from an ester of an alkyl acrylate or an alkyl methacrylate, the alkyl group having from 1 to 6 carbon atoms, and from 0.3 to 3 mol % of units derived from maleic anhydride.

REFERENCES:
patent: 4302511 (1981-11-01), Tuller et al.

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