Adhesive composition
View Patent ↗A foamable crosslinkable composition particularly useful as a foamed adhesive or coating.
1. A foamed one-part waterborne adhesive or coating composition comprising a noncrosslinkable polymer, a reactive crosslinkable polymer, at least a second crosslinkable component and a crosslinking catalyst, and wherein said catalyst is selected from the group consisting of ⅓ basic aluminum chloride, ⅔ basic aluminum chloride or mixtures thereof.
2. The composition of claim 1 wherein noncrosslinkable polymer is an ethylene-vinyl acetate copolymer and the reactive crosslinkable copolymer is a vinyl acetate-N-methylol acrylamide copolymer.
3. The composition of claim 1 which is foamed to from about 20% by volume to about 60% per volume.
4. The composition of claim 3 which is foamed to from about 35% to about 45% by volume.
5. The composition of claim 1 that is crosslinked.
6. A laminate comprising the composition of claim 3 .
7. The laminate of claim 6 wherein the composition is located between a decorative layer and a core layer.
8. The laminate of claim 7 wherein said decorative layer is paper, plastic, or paperboard and said core is styrofoam.
9. The laminate of claim 7 wherein said decorative layer is a thermosetting impregnated cellulosic material.
10. The laminate of claim 6 wherein the composition is crosslinked.
11. A substrate comprising the composition of claim 5 .
12. A substrate surface that has been coated with the composition of claim 1 , and the composition has been allowed to dry to crosslink and harden the composition.