Hydrocurable compositions containing poly-oxazoline groups

摘要: Novel oxazoline-containing monomers represented by the formula ##STR1## wherein: n is an integer of from 1 through 20: R1 selected group consisting hydrogen and methyl; R2, R3, R4, R5, R6 R7 are independently alkyl 20 carbon atoms; polymers thereof, methods for preparing same disclosed. The hydrocurable invention, before hydrolysis, contain a plurality units following formula: ##STR2## Polymers having such may be obtained addition polymerization structure I, preferably with other ethylenically unsaturated monomers. In alternative, transesterification pendant ester groups, (for example those 5 atoms in alcohol moiety , as containing methyl mthacrylate, butyl acrylate, like), wherein R2 --R6 noted above. A third method obtaining II direct esterification --COOH (carboxyl) polymer, III. This latter route, while possible, generally not preferred. blended dicarboxylic acid cyclic anhydride materials caused to react each presence moisture whereby they become crosslinked into ripple-free, smooth coating novel two-step process. process steps involve first heat treatment melt followed, compound still hot, crosslink set resin mixture. Alternatively, cure conducted slowly enough permit fusion moisture, followed crosslinking. applied suitable substrate solution, nonaqueous dispersion, or, preferably, powder.