Method for forming decorative polyurethane coatings

Abstract

Abstract THERE IS DISCLOSED A METHOD FOR FORMING DECORATIVE POLYURETHANE COATINGS AND IN THE PROCEDURE A SOLID SUBSTRATE IS COATED WITH A LIQUID POLYURETHANE COMPOSITION, FOR INSTANCE, OF THE MOISTURE-CURING TYPE. WHILE THE THUS APPLIED POLYURETHANE IS STILL TACKY, PARTICULATE PIGMENT SOLIDS BEARING A CURING AID FOR POLYURETHANES ARE PLACED ON THE COATING. THE SOLIDS-BEARING COATING IS THEN COVERED WITH A CLEAR POLYURETHANE WHICH AGAIN MAY BE OF THE MOISTURE-CURING VARIETY, AND THE CURING AIR WHICH IS AN INTEGRAL PART OF THE PIGMENT SOLIDS HAS A CURING EFFECT ON BOTH THE UNDERLYING AND OVERLYING POLYURETHANE COATINGS. THE PIGMENTED SOLIDS THUS EXERT A DECORATIVE OR COLORING EFFECT THROUGH THE OVERLYING CLEAR COATING. THE CURING AID MAY BE EITHER OF THE CATALYTIC OR REACTIVE TYPE. SINCE THE CURING AID IS INCLUDED IN THE PARTICULATE SOLIDS WHICH DO NOT CONTACT THE POLYURETHANE VEHICLES UNTIL THEY ARE IN PLACE ON THE SUPPORTING SUBSTRATE, THE VEHICLES UNTIL THEY ARE IN PLACE ON THE SUPPORTING SUBSTRATE, THE VEHICLES AS A RESULT, HAVE ADEQUATE WORKING TIME, AND CONSTRUCTION JOBS FOR INSTANCE, WHEREIN THE VEHICLE ARE FORMED AS A MONO LITHIC OR SEAMLESS FLOORING CAN BE PLANNED AND EXECUTED WITH FACILITY. THE PARTICULATE SOLIDS ARE FREQUENTLY THIN CHIPS COMPOSED OF FINELY DIVIDED PIGMENT SOLIDS, BINDER AND CURING AID.

Inventors

• 👤 George J Hutzier
• 👤 Carl L Schwenk

Bibliographic Details