Adhesion promoter composition
View Patent ↗A composition for improving the adhesion of a paint to a surface, wherein the composition comprises an unsaturated polyester, a modified acrylic resin, a polymerization inhibitor, an aromatic solvent and either divinylbenzene, isopropenyl-2-methyl benzyl isocyanate or an acrylic monomer.
1. A composition which consists essentially of:
A. from 1.0 to 20.0 weight percent of an unsaturated polyester;
B. from 1.0 to 30.0 weight percent of a modified acrylic resin;
C. from 0.0001 to 0.50 weight percent of a polymerization inhibitor;
D. from 4.0 to 50.0 weight percent of an aromatic solvent; and
E. from 1.0 to 10.0 weight percent of divinylbenzene, isopropenyl-2-methyl benzyl isocyanate or an acrylic monomer,
wherein a surface treated with the composition provides improved adhesion of a paint to the surface.
2. A composition as defined by claim 1 wherein the composition contains from about 5.0 to about 15.0 weight percent of the unsaturated polyester.
3. A composition as defined by claim 1 wherein the composition contains from about 3.0 to about 15.0 weight percent of the modified acrylic resin.
4. A composition as defined by claim 1 wherein the composition contains from about 0.001 to about 0.05 weight percent of the polymerization inhibitor.
5. A composition as defined by claim 1 wherein the composition contains from about 10.0 to about 20.0 weight percent of the aromatic solvent.
6. A composition as defined by claim 1 wherein the composition contains from about 2.0 to about 5.0 weight percent of divinylbenzene, isopropenyl-2-methyl benzyl isocyanate or an acrylic monomer.
7. A process for improving adhesion of a paint to a surface by treating the surface with a composition which consists essentially of:
A. from 1.0 to 20.0 weight percent of an unsaturated polyester;
B. from 1.0 to 30.0 weight percent of a modified acrylic resin;
C. from 0.0001 to 0.50 weight percent of a polymerization inhibitor;
D. from 4.0 to 50.0 weight percent of an aromatic solvent; and
E. from 1.0 to 10.0 weight percent of divinylbenzene, isopropenyl-2-methyl benzyl isocyanate or an acrylic monomer,
and then applying the paint to the surface.
8. A process as defined by claim 7 wherein the surface is treated with the composition by brushing, spraying, dipping, pouring or rolling.
9. A process as defined by claim 7 wherein the composition contains from about 5.0 to about 15.0 weight percent of the unsaturated polyester.
10. A process as defined by claim 7 wherein the composition contains from about 3.0 to about 15.0 weight percent of the modified acrylic resin.
11. A process as defined by claim 7 wherein the composition contains from about 10.0 to about 20.0 weight percent of the aromatic solvent.
12. A process as defined by claim 7 wherein the composition contains from about 0.001 to about 0.05 weight percent of the polymerization inhibitor.
13. A process as defined by claim 7 wherein the composition contains from about 2.0 to about 5.0 weight percent of divinylbenzene, isopropenyl-2-methyl benzyl isocyanate or an acrylic monomer.