Process for the production of a multiple layer laminate

Details Process for the production of a multiple layer laminate Process for the production of a multiple layer laminate

1974-11-20

1978-02-28

Weston, Caleb

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156500, 428518, B29G 300

Patent

active

040765709

ABSTRACT:
Disclosed is a process for producing a laminate having at least three layers comprising a base layer of polystyrene, an intermediate layer of an ABS polymer and a third barrier layer of a vinyl chloride or vinylidene chloride polymer comprising the steps of co-extruding through a single die orifice a heat plastified composite structure comprising a base layer of polystyrene and a surface layer of an ABS polymer and thereafter laminating a preformed layer of a barrier material polymer to the ABS surface layer of the co-extruded composite.

REFERENCES:
patent: 3206354 (1965-09-01), Pooley
patent: 3396062 (1968-08-01), White
patent: 3589976 (1971-06-01), Erb
patent: 3620900 (1971-11-01), Williger
patent: 3645838 (1972-02-01), Newman et al.
patent: 3654069 (1972-04-01), Freudenberg
patent: 3748218 (1973-07-01), Newman et al.
patent: 3755050 (1973-08-01), Golden et al.
patent: 3798103 (1974-03-01), Gaunt

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