High solids air-drying coating compositions
AssigneeMonsanto Company
InventorsWilliam F. Strazik, John R. LeBlanc, J. Owen Santer
Life of this patent
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Abstract
Air drying compositions comprising an unsaturated oil modified resin and an unsaturated condensate of an alkoxy-methylmelamine, an allylic alcohol and an acrylamide. The unsaturated melamine condensate contains allylic and acrylamide moieties in the ratio of about 3:1 to about 1:3, at least about 0.75 allylic moieties and no more than about 3 acrylamide moieties per melamine ring and a total of allylic and acrylamide moieties in the range of about 2 to about 4 per melamine ring.
Claims25
An air-drying composition comprising from about 50 to about 90 parts by weight of an unsaturated oil-modified resin and from about 50 to about 10 parts by weight of an unsaturated stepwise condensate of an alkoxymethylmelamine, an allylic alcohol, and an acrylamide, wherein the ratio of allylic alcohol moieties to acrylamide moieties in the condensate is in the range of about 3:1 to about 1:3, wherein the condensate contains at least about 0.75 allylic moiety and no more than about 3 acrylamide moieties per melamine ring and wherein the total of allylic moieties and acrylamide moieties of the condensate is in the range of about 2 to about 4 per melamine ring.
An air-drying composition comprising from about 70 to about 90 parts by weight of an unsaturated oil-modified resin and from about 30 to about 10 parts by weight of an unsaturated stepwise condensate of an alkoxymethylmelamine, allyl alcohol and acrylamide wherein the number of allyl moieties in the condensate is in the range of about 1 to about 3 per melamine ring and wherein the number of acrylamide moieties is in the range of about 1 to about 2 per melamine ring.
An air-drying composition comprising from about 70 to about 90 parts by weight of an unsaturated oil-modified resin and from about 30 to about 10 parts by weight of an unsaturated stepwise condensate of a methoxymethylmelamine, allyl alcohol, and acrylamide, wherein the number of allyl moieties in the condensate is in the range of about 1.5 to about 2.5 per melamine ring and wherein the number of acrylamide moieties is in the range of about 1 to about 2 per melamine ring.
Dependencies are inferred from the claim text.