Aqueous cold seal release lacquer

Details Aqueous cold seal release lacquer Aqueous cold seal release lacquer

1994-09-13

1995-11-14

Michl, Paul R.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

524428, 524538, 524597, 524598, C08K 520

Patent

active

054667348

ABSTRACT:
An aqueous cold seal release varnish comprising the reaction product of a mixture comprising 30-50 parts of a polyamide block copolymer having an acid value of 30-45, 1-5 parts of an amide wax, 10-20 parts of at least one C.sub.1 -C.sub.4 alkanol, 5-10 parts of an amine and 15-55 parts of water. The mixture is dissolved by heating at a temperature of 75.degree.-85.degree. C. for a period of time of not more than 90 minutes to produce a varnish. An aqueous cold seal release lacquer (CSRL) is prepared from the varnish by mixing with a C.sub.1 -C.sub.4 alkanol, water and a surfactant.

REFERENCES:
patent: 3994201 (1976-11-01), Bendler et al.
patent: 4810747 (1989-03-01), Bornack
patent: 4873311 (1989-10-01), Bornack, Jr. et al.
patent: 5006863 (1991-04-01), Talvalkar

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