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US 4,520,167 AGranted
Hydroxyalkyl carbamate diluent for coating compositions and compositions containing the same
AssigneeAmerican Cyanamid Company
InventorsWerner J. Blank, Girish G. Parekh
Life of this patent
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Abstract
A coating composition comprises an hydroxyalkyl carbamate compound, an amino cross-linker, a polymer containing active sites which are reactive with the cross-linker and, optionally, an acid catalyst. The hydroxyalkyl carbamate compound serves as a reactive diluent in the composition. The composition is stable at ambient temperature and reactive at elevated temperature to form a cross-linked compound in which the hydroxyalkyl carbamate compound is incorporated.
Claims14
A coating composition comprising:
- (a) a hydroxyalkyl carbamate compound of the formula ##STR7## wherein n=0 or 1, R is a C.sub.1 to C.sub.20 organic moiety which may contain one or more constituents selected from the class consisting of hetero-atoms and hydroxyl groups, and each of R.sub.1, R.sub.2 and R.sub.3 is independently H or CH.sub.3 ;
- (b) an amide-aldehyde cross-linker;
- and
- (c) a polymer containing active sites which, at elevated temperatures are reactive with the amide-aldehyde cross-linker (b);
- the compound (a), the cross-linker (b) and the polymer (c) being stable relative to each other in the composition while at ambient temperature, and reactive at elevated temperature.
2 more elements
Dependencies are inferred from the claim text.