Patent ID: 6878760
Filing Date: 2005-04-12
Classification: C08K,C08L,Y10S,Y10T

Abstract:
1. A rubber composition containing a reinforcing filler network formed in situ within an elastomer host, and a carbon black subsequently therewith, prepared by, based upon parts by weight per 100 parts by weight rubber (phr): (A) thermomechanically mixing a rubber mixture within an internal rubber mixer in a preparatory mixing stage from an initial temperature of elastomers of said rubber mixture of less than about 50° C. to an autogeneously generated temperature thereof, as the rubber is being mixed therein, in a range of about 120° C. to about 170° C., in the absence of addition of free sulfur, to form a first phase of at least one elastomer containing an in situ formed reinforcing filler network therein wherein said rubber mixture is comprised of: