Waterborne adhesive
View Patent ↗Novel waterborne adhesives comprising a crosslinkable polymer, a crosslinking agent and acetaldehyde scavenger are useful in the manufacture of products exhibiting reduced acetaldehyde emission rates. Manufactured products having acetaldehyde emission rates of less than 9 μg/m 3 may be manufactured using the adhesive of the invention.
1. A waterborne adhesive comprising
a crosslinkable polymer,
a crosslinking agent,
an acid catalyst, and
a 2-aminobenzamide as an acetaldehyde scavenger in an amount effective to reduce acetaldehyde emission levels to less than or equal to 3 ppm, and wherein the acid catalyst is present in the adhesive in amount effective to produce a pH range of 2-5.
2. The adhesive of claim 1 wherein the crosslinkable polymer is a crosslinkable vinyl acetate copolymer.
3. The adhesive of claim 2 wherein the crosslinkable vinyl acetate copolymer is vinyl acetate N-methylolacrylamide copolymer.
4. An article manufactured using a waterborne adhesive, said adhesive comprising a crosslinkable polymer a crosslinkable agent, an acid catalyst, and a 2-aminobenzamide as an acetaldehyde scavenger to less than or equal to 3 ppm, and wherein the acid catalyst is present in the adhesive in amount effective to produce a pH range of 2-5.
5. The article of claim 4 wherein the adhesive comprises a crosslinkable vinyl acetate copolymer.
6. The article of 5 wherein the crosslinkable vinyl acetate copolymer is vinyl acetate N-methylolacrylamide copolymer.
7. The article of claim 6 which comprises wood.