Method of preparing elastomers having reduced hysteresis propert

Details Method of preparing elastomers having reduced hysteresis propert Method of preparing elastomers having reduced hysteresis propert

1991-05-21

1992-09-29

Henderson, Christopher

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

524495, C08F 834, C08C 1920

Patent

active

051514699

ABSTRACT:
A method of preparing an elastomer having reduced hysteresis properties comprises the steps of reacting an anionic polymer having at least one functional site, with about one equivalent of a sulfoxide compound having the formula ##STR1## to form an adduct, where R1 and R2 are organo groups selected from the group consisting of alkyls and sulfur substituted alkyls having from about 1 to about 20 carbon atoms, cycloalkyls having from about 3 to about 20 carbon atoms, aryls and halogen substituted aryls having from about 6 to about 20 carbon atoms and aralkyls having from about 7 to about 20 carbon atoms; and, curing the adduct in the presence of a suitable cure catalyst. Articles such as tires, produced with low hysteresis elastomeric polymers have lower rolling resistance.

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