Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Organic compound containing
Patent
1989-10-06
1990-10-09
Garvin, Patrick P.
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Organic compound containing
502168, B01J 3122
Patent
active
049620762
ABSTRACT:
A chelated titanium catalyst can be improved by the addition of an additive selected from the group consisting of organomercaptan of the formula RSH, where R is a hydrocarbon radical containing from 3 to 12 carbon atoms, and mercapto containing silane of the formula HSR'SiX.sub.3, where R' is a divalent hydrocarbon having from 1 to 8 carbon atoms and X is alkoxy radical having 1 to 6 carbon atoms. The improved composition has a reduced tendency to develop color upon storage. The improved composition is particularly useful in a silicone composition comprising a hydroxyl endblocked polydiorganosiloxane and an alkoxysilane or mixture of alkoxysilanes, or in a silicone composition comprising an alkoxy endblocked polydiorganosiloxane.
REFERENCES:
patent: 3845161 (1974-07-01), Beers
patent: 4391937 (1983-03-01), Falender et al.
patent: 4438039 (1984-03-01), Beers
patent: 4487907 (1984-12-01), Fukayama et al.
Chu Hsien-Kun
Kamis Russell P.
Klosowski Jerome M.
Lower Loren D.
Dow Corning Corporation
Elliott Edward C.
Garvin Patrick P.
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