Synthetic rubber that exhibits low hysteresis

Details Synthetic rubber that exhibits low hysteresis Synthetic rubber that exhibits low hysteresis

2006-03-28

2006-03-28

Teskin, Fred (Department: 1713)

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S288000, C526S293000, C525S332600, C524S547000, C524S551000, C152S450000

Reexamination Certificate

active

07019096

ABSTRACT:
This invention discloses a rubbery polymer which is comprised of repeat units that are derived from (1) at least one conjugated diolefin monomer, and (2) at least one leaving group-bearing monomer having the structural formula:wherein R represents an alkyl group containing from 1 to about 10 carbon atoms or a hydrogen atom, wherein R′ represents a methyl group or a hydrogen atom, with the proviso that if R represents an alkyl group then R′ represents a hydrogen atom, and wherein R1and R2can be the same or different, wherein R1represents an alkyl group that is functionalized with a leaving group, wherein R2represents a moiety selected from the group consisting of hydrogen atoms, alkyl groups containing from 1 to 18 carbon atoms, aryl groups containing from 6 to 18 carbon atoms, alkaryl groups containing from 7 to 18 carbon atoms, and alkyl groups that are functionalized with a leaving group.

REFERENCES:
patent: 3435011 (1969-03-01), Uraneck et al.
patent: 3879328 (1975-04-01), Jones
patent: 4052542 (1977-10-01), Wei et al.
patent: 4268642 (1981-05-01), Gunesin et al.
patent: 4423198 (1983-12-01), Tsai
Rubber Technology, 3rd ed., M. Morton (ed.), Van Nostrand Reinhold, NY, 1987, pp. 86-88, 94-98, 209 and 228-230.

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