Method for heat sealing

Details Method for heat sealing Method for heat sealing

1987-04-06

1988-06-28

Lieberman, Allan M.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156334, 428522, 524923, 525 86, 525 94, 525 95, 525 96, C09J 502

Patent

active

047537086

ABSTRACT:
A film forming dispersion for the heat sealing of dissimilar substrate said dispersion comprising at least two different types of polymers having different adhesive properties in an organic solvent system, at least one of the polymer types being fully miscible at room temperature with the organic solvent system, both of said two polymer types having an acid number ranging from 0 to 160 mg KOH per gram of polymer, and said dispersion further containing a third graft polymer containing components corresponding to said two different polymer types.

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