Method of laminating using tripolymer cements and articles made therefrom

Claim 1

AN ARTICLE OF MANUFACTURE COMPRISING A BODY OF A LOW TEMPERATURE INTERPOLYMER OF A MAJOR AMOUNT OF ISOBUTYLENE WITH A MINOR PROPORTION OF A CONJUGATED DIOLEFIN, THE INTERPOLYMER BEING CHARACTERIZED BY A LOW UNSATURATION WITHIN THE RANGE OF AN IODINE NUMBER BETWEEN 0.5 AND 40, A MOLECULAR WEIGHT ABOVE 20,000 AND REACTIVITY WITH A CURING AGENT TO YIELD AN ELASTIC PRODUCT, A SECOND BODY OF A RUBBERY MATERIAL, CHARACTERIZED BY A HIGH UNSATURATION WITHIN THE RANGE OF AN IODINE NUMBER BETWEEN THAT OF BUTADIENE-STYRENE COPOLYMER RUBBER AND 451, AND RELATIVELY WITH A CURING AGENT, AND A THIRD, INTERPOSED BODY COMPRISING A TRIPOLYMER OF INTERPOLYMERIZED ISOBUTYLENE, BUTADIENE, AND AN ALIPHATIC CONJUGATED DIOLEFIN OF 5 TO 8 C ARBON ATOMS, SAID TRIPOLYMER HAVING A WIJS IODINE NUMBER OF AT LEAST 40 AND AN 8MINUTE MOONEY AT 212*F. OF ABOUT 28 TO 75.

Claim 3

THE METHOD OF UNITING A SOLID ISOOLEFIN-DIOLEFIN INTERPOLYMER MATERIAL, PREPARED BY REACTING TOGETHER A MAJOR PROPORTION OF ISOBUTYLENE AND A MINOR PROPORTION OF A CONJUGATED DIOLEFIN HAVING FROM 5 TO 8 CARBON ATOMS, IN THE PRESENCE OF A DISSOLVED FRIEDEL-CRAFTS CATALYST, AT A TEMPERATURE BETWEEN -40*C. AND -160*C., SAID INTERPOLYMER HAVING AN IODINE NUMBER OF ABOUT 1 TO 40, AND A MOLECULAR WEIGHT TAN 20,000, TO A HIGH UNSATURATION, RUBBERY MATERIAL HAVING AN IODINE NUMBER BETWEEN THAT OF BUTADIENE-STYRENE COPOLYMER RUBBER AND 451, WHICH COMPRISES INTERPOSING BETWEEN THE SAID TWO MATERIALS A LAYER COMPRISING A TRIPOLYMER OF ISBUTYLENE, BUTADIENE, AND ISPRENE, SAID TRIPOLYMER HAVING BEEN MADE BY FRIEDEL-CRAFTS POLYMERIZATION OF 100 PARTS BY WEIGHT OF ISOBUTYLENE, ABOUT 40 TO 500 PARTS BY WEIGHT OF BUTADIENE AND ABOUT 5 TO 50 PARTS BY WEIGHT OF ISOPRENE, EACH OF SAID THREE KINDS OF RUBBER MATERIALS HAVING BEEN COMPOUNDED WITH CURING AGENTS, AND SUBJECTING THE COMPOSITE ARTICLE TO VULCANIZING CONDITIONS.

Claim 4

THE METHOD OF UNITING A SOLID ISOOLEFIN-DIOLEFIN INTERPOLYMER MATERIAL, PREPARED BY REACTING TOGETHER A MAJOR PROPORTION OF ISOBUTYLENE AND A MINOR PROPORTION OF A CONJUGATED DIOLEFIN HAVING FROM 5 TO 8 CARBON ATOMS, IN THE PRESENCE OF A DISSOLVED FRIEDEL-CRAFTS CATALYST, AT A TEMPERATURE BETWEEN -40*C. AND -160*C., SAID INTERPOLYMER HAVING AN IODINE NUMBER OF ABOUT 1 TO 40, AND A MOLECULAR WEIGHT TAN 20,000, TO A HIGH UNSATURATION, RUBBERY MATERIAL HAVING AN IODINE NUMBER BETWEEN THAT OF BUTADIENE-STYRENE COPOLYMER RUBBER AND 451, WHICH COMPRISES INTERPOSING BETWEEN THE SAID TWO MATERIALS A LAYER COMPRISING A TRIPOLYMER OF ISBUTYLENE, BUTADIENE, AND ISPRENE, SAID TRIPOLYMER HAVING BEEN MADE BY FRIEDEL-CRAFTS POLYMERIZATION OF 100 PARTS BY WEIGHT OF ISOBUTYLENE, ABOUT 40 TO 500 PARTS BY WEIGHT OF BUTADIENE AND ABOUT 5 TO 50 PARTS BY WEIGHT OF ISOPRENE, EACH OF SAID THREE KINDS OF RUBBER MATERIALS HAVING BEEN COMPOUNDED WITH CURING AGENTS, AND SUBJECTING THE COMPOSITE ARTICLE TO VULCANIZING CONDITIONS.