abstract |
A RUBBER COMPOSITON HAVING GOOD OIL AND OZONE RESITANCE FORMED OF A CURABLE BLEND OF RUBBERY POLYMER AND AN EPDM COPOLYMER FORMED BY INTERPOLYMERIZATION OF MONOMERS INCLUDING A 5-ALKYLIDENE-2-NORBORNENE HAVING AT LEAST 2 CARBON ATOMS IN THE ALKYLIDENE GROUP AND HAVING AN EFFECTIVE UNSATURATION OF AT LEAST 2 CARBON-TO-CARBON DOUBLE BONDSL PER 1000 CARBON ATOMS IN TEH INTERPOLYMER. |