C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
400/4210, 400/54
C08G 63/66 (2006.01) C08G 18/08 (2006.01) C08G 18/42 (2006.01) C09D 167/08 (2006.01) C09D 191/00 (2006.01)
Patent
CA 1116337
1293 ABSTRACT OF THE DISCLOSURE Process for producing water emulsifiable air-drying paint binders, the binders, and the emulsions therefrom char- acterized in that in a first reaction step 10 to 35 percent by weight of a polyethylene glycol having an average molecular weight of between about 500 and 5000, and 5 to 25 percent by weight of a low molecular weight formaldehyde condensate of an alkyl phenol and/or aryl phenol obtained under alkaline conditions are reacted at from 100 to 160°C., and the reaction product condensed in a second reaction step at from 180 to 250°C. with 40 to 85 percent by weight of a natural or synthe- tic substantially hydroxy-free ester of unsaturated oil fatty acids and polyols; and the obtained product in a third reac- tion step processed to provide an alkyl resin or oil binder, the weight ratios and reaction conditions being chosen in order that the final product has a level of from about 4 to 12 percent by weight of polyethylene glycol and an acid value of 10 to 30 mg KOH/g. The binders of the process when emulsified and used in the preparation of 2 paint have excellent storage stability and provide cured paint coatings having, inter alia, excellent water resistance.
317337
Fetherstonhaugh & Co.
Vianova Kunstharz Aktiengesellschaft
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