Water-moistenable adhesive coatings

Details Water-moistenable adhesive coatings Water-moistenable adhesive coatings

C - Chemistry, Metallurgy

09

J

117/25

C09J 5/00 (2006.01) C09J 133/06 (2006.01) C09J 157/04 (2006.01)

Patent

CA 1103099

Abstract of the Disclosure The present invention relates to the production of water- moistenable adhesive coatings and to products incorporating such coatings. A two-stage process for applying such coatings to wallcoverings and the like is known. In this process, a water-insoluble resin copolymer, in which at least one monomer is an acid, is deposited and subsequently neutralized upon the substrate. This process suffers from many disadvant- ages, including the need for excessively high application weights, hazards to equipment and operators, and excessive penetration of the copolymer into the substrate resulting in incomplete neutralization thereof by the subsequently applied alkali. In the present invention, these problems are avoided by neutralizing an acidic copolymer to form a salt thereof before applying such salt to the substrate. The salt may then be applied in various ways, such as from an aqueous or organic suspension or in a dried powderous form.

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