Water-dilutable coating compositions containing phenol resols etherified

Abstract

Abstract A WATER-DILUTABLE HEAT-CURABLE COATING COMPOSITION COMPRISING: (I) 50 TO 99 PERCENT BY WEIGHT OF HYDROPHILIC PLASTICIZING EPOXY RESIN PARTIAL ESTERS SELECTED FROM THE GROUP CONSISTING OF: (1) THE PARTIAL ESTERS OF COMPOUNDS CONTAINING EPOXY GROUPS OR HYDROXYL GROUPS PRODUCED BY HYDROLYTIC DISSOCIATION OF SAID EPOXY GROUPS WITH AT LEAST ONE MONOCARBOXYLIC ACID AND A POLYBASIC CARBOXYLIC ACID; (2) THE PARTIAL ESTERS OF COMPOUNDS CONTAINING EPOXY GROUPS OR HYDROXYL GROUPS PRODUCED BY HYDROLYTIC DISSOCIATION OF SAID EPOXY GROUPS WITH A POLYBASIC CARBOXYLIC ACID; AND (3) AMIXTURE OF (1) AND (2); WHEREIN SAID POLYBASIC CARBOXYLIC ACID COMPRISES ADDUCTS SELECTED FROMTHE GROUP CONSISTING OF MALEIC ACID WITH FATTY ACIDS AND MALEIC ANHYDRIDE WITH FATTY ACIDS SAID FATTY ACIDS ARE SELECTED FROM THE GROUP CONSISTING OF DRYING OIL ACIDS, SEMI-DRYING OIL ACIDS, AND MIXTURES OF SAID OILS WITH ROSIN ACIDS, SAID FATTY ACIDS CONTAINING UNSATURATED MONOCARBOXYLIC ACIDS, THE MOLAR PROPORTION OF UNSATURATED MONOCARBOXYLIC ACID TO MALEIC ACID OR MALEIC ANHYDRIDE IS BETWEEN ABOUT 0.9:1 AND 1.1:1 AND SAID COMPOUNDS CONTAINING EPOXY GROUPS OR HYDROXYL GROUPS ARE EPOXY RESINS HAVING THE GENERAL FORMULA 2-(OXIRANYL-CH2-(O-1,4-PHENYLENE-C(-CH3)2-1,4-PHENYLENE- 4-(HO-),4-(2-(CH3-C(-CH3)(-Y)-CH(-X)-CH2-)OXIRAN-3-YL), O-CH2-CH(-OH)-CH2)N-O-1,4-PHENYLENE-C(-CH3)2- 1,4-PHENYLENE-0-CH2-)OXIRANE WHEREIN N REPRESENTS MOLECULAR WEIGHT OF BETWEEN ABOUT 380 AND 3500; (II) STRONG NITROGENOUS BASES TO FORM SOAPS WITH THE FREE CARBOXYL GROUPS; (III) WATER; AND (IV) 1 TO 50 PERCENT BY WEIGHT OF HYDROPHILIC AND WATER-SOLUBLE LOW MOLECULAR WEIGHT HARDENABLE ALDEHYDE CONDENSATION PRODUCTS SUCH AS ETHERIFIED PHENOL RESOLS ALONE OR IN COMBINATION WITH PHENOL RESOLS AND/OR AMINOPLAST-FORMING RESINS.

Inventors

• 👤 Rolf Guldenpfennig

Bibliographic Details