Patent ID: 6562895
Filing Date: 2003-05-13
Classification: B60C,C08F,C08L,Y10T

Abstract:
A liquid isoprene-butadiene polymer which is comprised of repeat units which are derived from about 5 weight percent to about 95 weight percent isoprene and from about 5 weight percent to about 95 weight percent 1,3-butadiene, wherein the repeat units derived from isoprene and 1,3-butadiene are in essentially random order, wherein the liquid isoprene-butadiene polymer has a low number average molecular weight which is within the range of about 3,000 to about 50,000, wherein the liquid isoprene-butadiene polymer has a glass transition temperature which is within the range of about âˆ’50Â° C. to about 20Â° C., and wherein the liquid isoprene-butadiene polymer exhibits only one glass transition temperature.