Baked Alkyd Resin Enamel Coating Compositions Cross-Linked with Etherified Trimethylolated Crotonylidenediurea or Etherified Methylolated 2,7-Dixo- 4, 5 -Dimethyl- Decahydropyrimido- (4, 5-d) -Pyrimidine

摘要

Amyl acid phosphate, when employed as a catalyst for heat-curing alkyd resin coating compositions cross-linked with etherified trimethylolated crotonylidenediurea or etherified methylolated 2,7-dioxo-4,5-dimethyl-decahydropyrimido-[3,4-d]-pyrimidine, provides enamels of improved whiteness and color stability. The use of amyl acid phosphate in conjunction with urea as a catalyst system for heat-curing the aforementioned resins is also disclosed.