Silicone compounds containing a phenylenediamine functional grou

Details Silicone compounds containing a phenylenediamine functional grou Silicone compounds containing a phenylenediamine functional grou

1997-11-26

1999-07-27

Glass, Margaret W.

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

Synthetic resins

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

525104, 525105, 525106, 1561101, 26417124, C08F 830

Patent

active

059291664

ABSTRACT:
The present invention relates to compounds composed essentially of a linear, cyclic or branched polyorganosiloxane having, per molecule, at least 3 siloxy units, including at least one siloxy functional unit of formula: ##STR1## where R.sup.1 represents a C.sub.1 to C.sub.4 alkyl or phenyl radical, X contains an N,N'-di- and/or trisubstituted phenylenediamine functional group, bonded to the silicon via an Si-(hydrocarbon linking unit)-N and/or Si-(hydrocarbon linking unit)-C bond, and a is a number chosen from 0, 1 and 2. The present invention also relates to the use of such compounds as antiozonants for rubbers and in particular for rubber compositions for tires.

REFERENCES:
patent: 5733999 (1998-03-01), Bomal et al.

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