Silicone compounds containing a phenylenediamine functional grou

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

1996-05-09

1998-03-31

Glass, Margaret W.

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

Synthetic resins

From silicon reactant having at least one...

528 31, 528 38, 528 26, 556424, C07F 708

Patent

active

057339996

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: 2971864 (1961-02-01), Speier
patent: 4483972 (1984-11-01), Mitchell

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