Transesterification cure of thermosetting latex coatings

Details Transesterification cure of thermosetting latex coatings Transesterification cure of thermosetting latex coatings

1992-02-25

1993-11-09

Schofer, Joseph L.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

524523, 524558, C08L 6302

Patent

active

052603563

ABSTRACT:
Ambient and heat cured thermosetting emulsion protective coatings are produced by copolymerizing ethylenic monomers including beta-hydroxyl monomers and carboxyl ester monomers to provide a catalyst activated transesterification cure between the hydroxyl groups and the carboxyl ester groups. The transesterification catalyst comprise oxirane functionality in combination with certain classes of nucleophilic compounds. The oxirane functionality can be a catalytic epoxy compound or copolymerized glycidyl monomer or both.

REFERENCES:
patent: 4401774 (1983-08-01), Kooymans et al.
patent: 4427805 (1984-01-01), Kooymans et al.
patent: 4906693 (1990-03-01), Craun et al.

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