C - Chemistry – Metallurgy – 09 – D
Patent
C - Chemistry, Metallurgy
09
D
C09D 163/00 (2006.01) C08F 283/10 (2006.01) C08G 59/06 (2006.01) C09D 151/08 (2006.01) C09D 163/10 (2006.01)
Patent
CA 2097159
Coating campositions containing aqueous dispersion of higher molecular weight epoxy resin are produced by advancing the molecular weight of an aqueous dispersion of a low molecular weight epoxy resin having a number average molecular weight between about 360 and 2 000. The water dispersed low molecular weight epoxy resins are advanced in molecular weight by coreaction with a diphenol at temperatures above about 105°C and at pressures above about 34 475 N/m2 over atmospheric (5 psig) to produce the aqueous dispersed high molecular weight epoxy resin. The aqueous dispersed high molecular weight epoxy resin can be further copolymerized with ethylenic monomers, if desired, to produce an acrylic epoxy emulsion binder useful in protective coatings.
Bode Daniel
Craun Gary Pierce
Bode Daniel
Craun Gary Pierce
Gowan Intellectual Property
The Glidden Company
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