Rubbery conjugated diene polymers terminated with hydrocarbyl ph

Details Rubbery conjugated diene polymers terminated with hydrocarbyl ph Rubbery conjugated diene polymers terminated with hydrocarbyl ph

1983-06-03

1984-12-04

Schofer, Joseph L.

Resilient tires and wheels

Tires, resilient

Anti-skid devices

152330R, 525340, 5253379, 5253331, 5253332, 524572, A60C 1100

Patent

active

044858337

ABSTRACT:
Solution polymerized rubbery conjugated diene homopolymers and copolymers with monovinylarenes are terminated with a hydrocarbyl phosphite or thiophosphite. The phosphite terminated polymers, particularly medium-vinyl polybutadiene, can be incorporated in rubber/carbon black/oil tread stock compounds employing up to 65 parts of rubber per 100 parts of polymer and up to 30 parts of oil per 100 parts of polymer for higher resilience, lower hysteresis, and generally higher tensile strength after vulcanization.

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patent: 3937681 (1976-02-01), Nordsiek
patent: 3938574 (1976-02-01), Burmester et al.
patent: 4224197 (1980-09-01), Ueda et al.
patent: 4304886 (1981-12-01), Bean, Jr. et al.
patent: 4387757 (1983-06-01), Ogawa et al.

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