Process for producing coextruded film of polypropylene, polyprop

Details Process for producing coextruded film of polypropylene, polyprop Process for producing coextruded film of polypropylene, polyprop

1982-09-13

1985-11-12

Thurlow, Jeffery

Plastic and nonmetallic article shaping or treating: processes

Forming continuous or indefinite length work

Layered, stratified traversely of length, or multiphase...

264173, 4251311, 4284758, 428516, B29D 900

Patent

active

045527148

ABSTRACT:
A novel coextruded plastic film has as an adhesive layer between polypropylene and nylon layers, a blend of polypropylene and a graft copolymer of maleic anhydride onto a polypropylene backbone, the graft copolymer having been produced in a reaction carried out at a temperature of from about 80.degree. C. up to about 10.degree. C. below the melting point of the polypropylene.

REFERENCES:
patent: 3561493 (1971-02-01), Maillard et al.
patent: 3697368 (1972-10-01), Bhuta et al.
patent: 4087587 (1978-05-01), Shida et al.
patent: 4190477 (1980-02-01), Ossian et al.
patent: 4230830 (1980-10-01), Tanny et al.
patent: 4233367 (1980-11-01), Ticknor et al.
patent: 4477532 (1984-10-01), Schmukler et al.

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