RESIN DISPERSION
Disclosed is a resin dispersion, a method for production thereof and a product. According to the invention, a resin dispersion may b prepared, during the processing of which the release of polluting materials may be avoided, wherein the resin dispersion contains (I) 30 to 100 wt. % epoxide resin, 0-70 wt. % Novolak resin based on the mass of both resin components, (II) 4 to 18 wt. %, based on the total weight, of a co-dispersing agent made from ricin oil ethoxylate, hydrated ricin oil ethoxylate, alkylphenol ethoxylate, fatty alcohol ethoxylate, oleic acid ethoxylate, oxoalcohol ethoxylate, fatty alcohol alkoxylate and/or polyvinyl alcohol and (III), optionally, 0 to 20 wt. %, based on the total mass, of further conventional adjuncts.
1 . A process for producing the aqueous resin dispersion based on epoxy resins and novolak resins, and also optionally further added substances, comprising:
a. admixing at least the codispersant to the 30 to 100 weight percent of epoxy resin and 0-70 weight percent of novolak resin based on the mass of both resin components, present essentially in the melt, and
b. admixing water and optionally further added substances at temperatures <100° C. to the mixture obtained in step a).
2 . The process of claim 1 wherein a stabilizer is added as added substance in step b).
3 . The process of claim 1 wherein after obtaining the mixture in step b) the resin dispersion is admixed with one or more further added substances consisting of catalysts, dyes, wetting agents, or combinations thereof
4 . Process for producing an aqueous resin dispersion based on epoxy resins and novolak resins and also optionally further added substances, comprising mixed together by introducing shearing energy a composition comprising:
(I) 30 to 100 weight percent of epoxy resin and 0-70 weight percent of novolak resin based on the mass of both resin components and also
(II) 4 to 18 weight percent based on the overall mass of a codispersant based on castor oil ethoxylate, hydrogenated castor oil ethoxylate, alkylphenol ethoxylate, fatty alcohol ethoxylate, oleic acid ethoxylate, oxo process alcohol ethoxylate, fatty alcohol alkoxylate and/or polyvinyl alcohol, and
(III) optionally 0 to 20 weight percent based on the overall mass of further customary added substances, and
water.
5 . The process of claim 1 wherein the optionally further added substances are consisting of stabilizer, catalysts, dyes, wetting agents, or combinations thereof.
6 . A product having a crosslinked or uncrosslinked surficial layer produced by applying the resin dispersion according to claim 1 .
7 . The use of the aqueous resin dispersion of claim 1 for modifying textile, mineral, metallic or polymeric surfaces in the form of fibers, fibrous nonwoven webs, wovens, wools or smooth surfaces.