Electrodepositable Coating Compositions Containing 1,1-Di-Activated Vinyl Compounds
AssigneePPG Industries Ohio, Inc.
InventorsEgle Puodziukynaite, Craig A. Wilson, David Stone, James C. Serene, Lee B. Steely
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Abstract
Electrodepositable coating compositions containing 1,1-di-activated vinyl compounds are described. The coating compositions produce cured coating layers that exhibit resistance to cratering. The coating compositions can be used in electrodepositable coating composition formulations.
Claims47
An elecrodepositable coating composition comprising:
- (A) a polymer comprising (1) a reactive functional group and/or (2) a salt group or a salt-forming group;
- and
- (B) at least one component comprising:
- (b1) a 1,1-di-activated vinyl compound, or a multifunctional form thereof, or a combination thereof;
- (b2) a polymerization reaction product of a 1,1-di-activated vinyl compound, or a multifunctional form thereof, or a combination thereof;
- and/or
- (b3) an addition reaction product of (1) the polymer component (A) and (2) a 1,1-di-activated vinyl compound, or a multifunctional form thereof, or a combination thereof.
A process for the production of a coating composition comprising:
- reacting (A) a polymer comprising an active hydrogen group and (B) a 1,1-di-activated vinyl compound, or a multifunctional form thereof, or a combination thereof, to form a resin product;
- treating the resin product with an acid to form cationic salt groups or base to form anionic salt groups on the polymer;
- and
- dispersing the resin product in water.
A process for the production of a coating composition comprising:
- synthesizing a polymer comprising (i) a reactive functional group and/or (ii) a cationic salt group or an anionic salt group;
- dispersing the polymer in water to form a dispersion;
- and
- adding a 1,1-di-activated vinyl compound, or a multifunctional form thereof, or a combination thereof to the dispersion
A process for the production of a coating composition comprising:
- synthesizing a polymer comprising (i) an active hydrogen group and/or (ii) a functional group that is capable of being neutralized;
- reacting the polymer with an acid or a base to form a cationic salt group or an anionic salt group;
- dispersing the polymer in water to form a dispersion;
- and
- adding a 1,1-di-activated vinyl compound, or a multifunctional form thereof, or a combination thereof to the dispersion.
Use of a 1,1-di-activated vinyl compound, or a multifunctional form thereof, or a combination thereof as described in any of clauses 6-12 or a polymerization reaction product thereof as described in clause 13 or clause 14 to improve oil spot contamination resistance and/or cratering resistance in electrodeposited coatings, wherein oil spot contamination resistance and/or cratering resistance are improved in comparison to a coating electrodeposited from the same composition not comprising any of the 1,1-di-activated vinyl compound, multifunctional form or other reaction product thereof.
A process for the production of an electrodepositable coating compositions, comprising:
- incorporating a 1,1-di-activated vinyl compound or a reaction product thereof into the coating composition during production.
Dependencies are inferred from the claim text.