Extruded disc gasket for alcoholic beverage bottle caps

Abstract

Abstract D R A W I N G A GASKET EXCELLENTLY ADAPTED FOR USE IN CAPS FOR BOTTLES CONTAINING BEVERAGES OF HIGH ALCOHOLIC CONTENT CAN BE PREPARED BY ADMIXING A MOLTEN THERMOPLASTIC POLYMER, A PETROLEUM OIL, A COMPLETELY SATURATED PARAFFINIC WAX OR POLYETHYLENE WAX, A PARTICULATE TITANIUM DIOXIDE PIGMENT, AND AN ANTIOXIDANT, FORMING THE RESULTING MELT INTO A SHEET HAVING A THICKNESS OF ABOUT 3-7 MM., COOLING SAID SHEET TO SOLIDIFY THE MELT, CHOPPING THE COOLED SOLID SHEET INTO SMALL PARTICLES, CHARGING THE PARTICLES INTO AN EXTRUDER, EXTRUDING TO FORM A SHEET ABOUT 0.001-0.003 INCH (I.E., CA. 10-30 MILS), CUTTING THE SHEET INTO DISCS, AND INSERTING AND SEATING THE DISCS INTO CAPS WHICH HAVE BEEN PREHEATED TO ABOUT 250*F. BLOCK COPOLYMERS HAVING END SEGMENTS OF POLYSTYRENE AND CENTER SEGMENTS OF POLYBUTADIENE OR POLYISOPRENE CAN BE USED AS THE THERMOPLASTIC POLYMER FOR MAKING THE GASKETS.

Inventors

• 👤 J Lefforge
• 👤 Keller G Crawford

Bibliographic Details