Carboxyl functional vinyl copolymer resin

CARBOXYL FUNCTIONAL VINYL COPOLYMER RESINS IN ADHESIVE APPLICATIONS... 

Vinyl dispersion resins have typically consisted of inert homopolymer or copolymers of vinyl chloride and vinyl acetate, and although the inertness has been of importance for a multitude of applications, there are occasions when reactive functionality is an aid. An example of such a reactive vinyl resin is Geon 137, a carboxyl modified dispersion resin with a carboxyl content equivalent to 1.79% on a resin weight basis or an acid equivalent weight of about 2500. One adhesive application of considerable interest is in the production of flocked product, notably wall and floor coverings. A 50% replacement of standard copolymer dispersion resin with carboxyl functional resin doubles the force required to pluck fibers loose. Test results of laminating carboxylic vinyl plastisol with nylon fabric have shown a threefold increase in adhesion. Such plastisols also show improved adhesion to glass and polyester fabrics. ... 

Vinyl Resin VAGH (polyvinyl chloride/polyvinyl acetate copolymer) may be used for a topcoat formulation which is applied over acrylic/vinyl intermediate coats. The carboxyl function VMCH resin is used to promote better adhesion to metal substrates. 

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