The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 21, 1980
Filed:
Dec. 06, 1978
Bertram Zuckert, Graz, AT;
Vianova Kunstharz, A.G., Werndorf, AT;
Abstract
Process for producing water-emulsifiable air-drying paint binders, the binders, and the emulsions therefrom characterized 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.degree. to 160.degree. C., and the reaction product condensed in a second reaction step at from 180.degree. to 250.degree. C. with 40 to 85 percent by weight of a natural or synthetic substantially hydroxy-free ester of unsaturated oil fatty acids and polyols; and the obtained product in a third reaction 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 a paint have excellent storage stability and provide cured paint coatings having, inter alia, excellent water resistance.