Method for producing laminated material

Details Method for producing laminated material Method for producing laminated material

1986-09-17

1988-05-31

Simmons, David

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

15624423, 15624427, B32B 3130

Patent

active

047479027

ABSTRACT:
A method for producing a laminated material giving higher adhesive strength of laminated layers and the thermal deterioration of polyolefin and the undesirable release of the active agent during the lamination process are avoided. The method is characterized in that the substrate sheet is previously laminated with a polyolefin layer, and a molten web of polyolefin film is laminated to the side of said polyolefin layer of the substrate sheet under pressure at a relatively lower temperature.

REFERENCES:
patent: 3340123 (1967-09-01), Osmon
patent: 3629037 (1971-12-01), Masuda
patent: 3698934 (1972-10-01), Eichhorn et al.
patent: 4242395 (1980-12-01), Zuckerman et al.
patent: 4370187 (1983-01-01), Katagiri et al.
patent: 4476080 (1984-10-01), Komoda et al.

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