Silicone-containing hydrophylic resins dispersible in water

Abstract

Abstract SILICONE-CONTAINING HYDROPHYLIC RESINS THAT ARE DISPERSIBLE IN WATER WITH THE AID OF A BASE AND WATER MISCIBLE ORGANIC SOLVENTS ARE FORMED FROM SOLUTION ADDITION COPOLYMERS HAVING OH OR ALKOXY-FUNCTIONAL SILICON-CONTAINING MATERIAL CONDENSED THEREIN AS AN ETHER. THE HYDROXY FUNCTIONALLY IS PREFERABLY PROVIDED BY REACTING A PORTION OF THE CARBOXY FUNCTIONALITY OF THE COPOLYMERS WITH A MONOEPOXIDE. ORGANOPOLYSILOXANES ARE PREFERABLY USED AND THESE CAN BE CONDENSED WITH HYDROXY MONOMERS AND THEN POLYMERIZED OR THE CONDENSATION REACTION CAN BE CARRIED OUT WITH THE HYDROXY FUNCTIONAL POLYMER. AQUEOUS DISPERSIONS OF THE RESIN HAVING MINIMUM ACID NUMBER AND A PH ABOVE 8.4 ARE PARTICULARLY ADAPTED TO BE ELECTRODEPOSITED AT THE ANODE WHERE THE SILICONE COMPONENT ADDS GLOSS AND WHETHER RESISTANCE. CURE IS PREFERABLY EFFECTED USING AMINOPLAST RESINS, ESPECIALLY WATER INSOLUBLE HEAT-HARDENING BENZOGUANAMINE-FORMALDEHYDE RESIN WHICH DEPOSIT IN DIRECT PROPORTION TO THE CONCENTRATION THEREBY BY ASSOCIAITON IN THE ELECTROCOATING BATH WITH THE RESINS OF THE INVENTION. DEPOSITED FILMS MAY BE BAKED TO FORM SOLVENT RESISTANT COATINGS WITH THE AMINOPLAST RESIN AIDING THE CURE.

Inventors

• 👤 Kazys Sekmakas

Bibliographic Details