Manufacture of multilayer polymer films

Details Manufacture of multilayer polymer films Manufacture of multilayer polymer films

1997-08-05

2000-06-20

Yao, Sam Chuan

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156209, 15624427, 1563082, 156324, 264175, B32B 3120

Patent

active

060773731

ABSTRACT:
A method for making multilayer polymer films with involves the use of preferably embossed rollers which oscillate oppositely with respect to each along their respective rotational axis. Multilayer film is made by passing two or more molten thermoplastic films through the nip of these rollers, thereby laminating the individual films together. The method is particularly useful for improving the adhesion between film layers, and/or when at least one of the layer is a liquid crystalline polymer. Such films are useful in packaging, multilayer containers and for circuit boards.

REFERENCES:
patent: 3598671 (1971-08-01), Wortman
patent: 3627602 (1971-12-01), Dikj
patent: 3908808 (1975-09-01), Busker
patent: 3960636 (1976-06-01), Moffitt
patent: 4167600 (1979-09-01), Benzaquen

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