Coating compositions containing surface active addition polymers

Claim 2

An organic solvent solution thermosetting coating composition comprising organic solvent which is removed when the coating is deposited and baked, said solvent having dissolved therein a resiN vehicle comprising a methylolated acrylamide-containing interpolymer and which exhibits poor flow and wetting characteristics evidenced by the deposition of a film which, after baking, contains microscopic surface ridges visible under a microscope at 50 magnifications, said coating composition including from 0.01 to 5%, based on the weight of the resin vehicle, of a surface active addition polymer consisting essentially of (1) monoethylenic ester having a straight chain saturated aliphatic terminal hydrocarbon group containing at least 4 carbon atoms, and (2) monoethylenic ester having a branched chain terminal hydrocarbon group, the weight ratio of these two components being from 90:10 to 10:90, whereby the overall properties of the coating are determined by the characteristics of the said resin vehicle and the flow and wetting characteristics of the coatings are determined by said surface active addition polymer.

Claim 3

AN ORGANIC SOLVENT SOLUTION THERMOSETTING COATING COMPOSITION COMPRISING ORGANIC SOLVENT WHICH IS REMOVED WHEN THE COATING IS DEPOSITED AND BAKED, SAID SOLVENT HAVING DISSOLVED THEREIN A RESIN VEHICLE COMPRISING A METHYLOLATED ACRYLAMIDE-CONTAINING INTERPOLYMER AND WHICH EXHIBITS POOR FLOW AND WETTING CHARACTERISTICS EVIDENCED BY THE DEPOSITION OF A FILM WHICH, AFTER BAKING, CONTAINS MICROSCOPIC SURFACE RIDGES VISIBLE UNDER A MICROSCOPE AT 50 MAGNIFICATIONS, SAID COATING COMPOSITION INCLUDING FROM 0.01 TO 5%, BASED ON THE WEIGHT OF THE RESIN VEHICLE, OF A SURFACE ACTIVE ADDITION POLYMER CONSISTING ESSENTIALLY OF (1) MONOETHYLENIC ESTER HAVING A STRAIGHT CHAIN SATURATED ALIPHATIC TERMINAL HYDROCARBON GROUP CONTAINING AT LEAST 4 CARBON ATOMS, AND (2) MONOETHYLENIC ESTER HAVING A BRANCHED CHAIN TERMINAL HYDROCARBON GROUP, THE WEIGHT RATIO OF THESE TWO COMPONENTS BEING FROM 90:10 TO 10:90, WHEREBY THE OVERALL PROPERTIES OF THE COATING ARE DETERMINED BY THE CHARACTERISTICS OF THE SAID RESIN VEHICLE AND THE FLOW AND WETTING CHARACTERISTICS OF THE COATINGARE DETERMINED BY SAID SURFACE ACTIVE ADDITION POLYMER.

Claim 4

AN ORGANIC SOLVENT SOLUTION THERMOSETTING COATING COMPOSITION COMPRISING ORGANIC SOLVENT WHICH IS REMOVED WHEN THE COATING IS DEPOSITED AND BAKED, SAID SOLVENT HAVING DISSOLVED THEREIN A RESIN VEHICLE COMPRISING A METHYLOLATED ACRYLAMIDE-CONTAINING INTERPOLYMER AND WHICH EXHIBITS POOR FLOW AND WETTING CHARACTERISTICS EVIDENCED BY THE DEPOSITION OF A FILM WHICH, AFTER BAKING, CONTAINS MICROSCOPIC SURFACE RIDGES VISIBLE UNDER A MICROSCOPE AT 50 MAGNIFICATIONS, SAID COATING COMPOSITION INCLUDING FROM 0.01 TO 5%, BASED ON THE WEIGHT OF THE RESIN VEHICLE, OF A SURFACE ACTIVE ADDITION POLYMER CONSISTING ESSENTIALLY OF (1) MONOETHYLENIC ESTER HAVING A STRAIGHT CHAIN SATURATED ALIPHATIC TERMINAL HYDROCARBON GROUP CONTAINING AT LEAST 4 CARBON ATOMS, AND (2) MONOETHYLENIC ESTER HAVING A BRANCHED CHAIN TERMINAL HYDROCARBON GROUP, THE WEIGHT RATIO OF THESE TWO COMPONENTS BEING FROM 90:10 TO 10:90, WHEREBY THE OVERALL PROPERTIES OF THE COATING ARE DETERMINED BY THE CHARACTERISTICS OF THE SAID RESIN VEHICLE AND THE FLOW AND WETTING CHARACTERISTICS OF THE COATINGARE DETERMINED BY SAID SURFACE ACTIVE ADDITION POLYMER.

Claim 5

A pigmented organic solvent solution thermosetting coating composition comprising organic solvent which is removed when the coating is deposited and baked, said solvent having dissolved therein, on a pigment free basis, from 30-65% by weight of a thermosetting resin vehicle selected from the group of methylolated acrylamide containing interpolymers and hydroxy functional interpolymers blended with an aminoplast resin, said resin vehicle exhibiting poor flow and wetting in the absnece of added flow control agent, said coating composition including, in compatible admixture with said resin vehicle, from 0.05 to 3% based on the weight of the resin vehicle, of a surface active addition polymer consisting essentially of (1) monoethylenic ester having a straight chain saturated aliphatic terminal hydrocarbon group containing at least 4 carbon atoms, and (2) monoethylenic ester having a branched chain terminal hydrocarbon group, the weight ratio of these two components being from 90:10 to 10:90, other monoethylenic material being present in said polymer in an amount of from 0 to 15%, whereby coatings which thermoset can be applied in the absence of the poor flow and wetting characteristics normally associated with said coatings.

Claim 6

A pigmented organic solvent solution thermosetting coating composition comprising organic solvent which is removed when the coating is deposited and baked, said solvent having dissolved therein, on a pigment free basis, from 30-65% by weight of a thermosetting resin vehicle selected from the group of methylolated acrylamide containing interpolymers and hydroxy functional interpolymers blended with an aminoplast resin, said resin vehicle exhibiting poor flow and wetting in the absnece of added flow control agent, said coating composition including, in compatible admixture with said resin vehicle, from 0.05 to 3% based on the weight of the resin vehicle, of a surface active addition polymer consisting essentially of (1) monoethylenic ester having a straight chain saturated aliphatic terminal hydrocarbon group containing at least 4 carbon atoms, and (2) monoethylenic ester having a branched chain terminal hydrocarbon group, the weight ratio of these two components being from 90:10 to 10:90, other monoethylenic material being present in said polymer in an amount of from 0 to 15%, whereby coatings which thermoset can be applied in the absence of the poor flow and wetting characteristics normally associated with said coatings.

Claim 7

A coating composition as recited in claim 2 in which the said components (1) and (2) of said surface active addition polymer are utilized in a wiight ratio of from 25:75 to 75:25.