Coating compositions prepared from Michael adducts
AssigneePPG Industries, Inc.
InventorsLeon A. Perez, H. Hayne Crum, III
Life of this patent
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Abstract
A coating composition contains; A. an ungelled Michael adduct formed by reacting, under conditions sufficient to form a Michael adduct, (a) a material containing one or more primary and/or secondary amino groups and at least two hydroxyl groups; (b) a material containing at least two alpha,beta-ethylenically unsaturated moieties; with the proviso that the reactants (a) and (b) are selected such that the resultant Michael adduct contains hydroxyl functionality; and B. a curing agent adapted to crosslink with the hydroxyl functionality present on the Michael adduct; said adduct being stable under the curing conditions for the coating composition. The aforedescribed coating compositions are particularly useful as anti-chip primers.
Claims15
A coating composition comprising:
- (A) an ungelled Michael adduct formed by reacting, under conditions sufficient to form a Michael adduct,
- (a) a material containing one or more primary and/or secondary amino groups and at least two hydroxyl groups;
- with
- (b) a material containing at least two alpha,beta-ethylenically unsaturated moieties;
- with the proviso that the rectants (a) and (b) are selected such that the resultant Michael adduct contains hydroxyl functionality;
- and
- (B) a curing agent adapted to crosslink with the hydroxyl functionality present on the Michael adduct;
- said adduct being stable under the curing conditions for the coating composition.
A coating composition comprising:
- A. An ungelled Michael adduct formed by reacting, under conditions sufficient to form a Michael adduct,
- (a) a dialkanolamine;
- with
- (b) a material containing at least two alpha,beta-ethylenically unsaturated moieties;
- with the proviso that the reactants (a) and (b) are selected such that the resultant Micahel adduct contains hydroxyl functionality;
- and
- B. a curing agent adatped to crosslink with the hydroxyl functionality present on the Michael adduct;
- said adduct being stable under the curing conditions for the coating composition.
A coating composition comprising:
- A. an ungelled Michael adduct formed by reacting, under conditions sufficient to form a Michael adduct,
- (a) diethanolamine;
- with
- (b) 1,6-hexanediol diacrylate;
- and
- B. a curing agent adapted to crosslink with the hydroxyl functionality present on the Michael adduct;
- said adduct being stable under the curing conditions for the coating composition.
A coating composition, comprising:
- A. an ungelled Michael adduct formed by reacting, under conditions sufficient to form a Michael adduct,
- (a) a material containing one or more primary and/or secondary amino groups and at least two hydroxyl groups with
- (b) a material containing at least two vinyl groups;
- and
- B. a curing agent adapted to crosslink with the hydroxyl groups present on the Michael adduct, the crosslinking reaction being catalyzed by the tertiary amine present on the Micahel adduct, said adduct being stable under the curing conditions for the coating composition.
Dependencies are inferred from the claim text.