Soluble adhesive films

Details Soluble adhesive films Soluble adhesive films

1988-11-07

1992-03-10

Davis, Jenna

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Adhesive outermost layer

428345, 428520, C09J 900, C09J13308, B32B 710

Patent

active

050949128

ABSTRACT:
The invention relates to an adhesive film, such as a label system or the like, formed from a film of a copolymer of acrylic and/or methacrylic acid, as well as acrylate and/or methacrylate soluble in aqueous alkali and an adhesive applied to the film and which is soluble in aqueous alkali. The adhesive film as a whole is dissolvable in the aqueous alkali and is suitable, particularly in colored printed form, for water-resistant labels, but which are easily removable in aqueous alkali. The copolymer can be recovered again from the aqueous system by a precipitation with acid.

REFERENCES:
patent: 3936571 (1976-02-01), Van Hoof
patent: 4444839 (1984-04-01), Dudzik
patent: 4612355 (1986-09-01), Belz
patent: 4870148 (1989-09-01), Belz

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