Polyalkoxylated terpenic compounds, their process of preparation and their use as defoaming agents
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United States of America Patent
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Jan 25, 2005
Grant Date -
Mar 20, 2003
app pub date -
Jun 20, 2002
filing date -
Dec 20, 1996
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Abstract
The invention concerns polyalkoxylated terpenic compounds of formula Z-X--W--[CH(R.sup.5)--CH(R.sup.6)--O].sub.q -A in which Z is a bicycloheptenyl or bicycloheptyl radical, preferably substituted by methy radicals; X is preferably a --CH.sub.2 --CH.sub.2 --O or O--CH.sub.2 --CH.sub.2 --O-- radical; W is a polysequence, preferably polyoxypropylene and polyoxyethylene; [CH(R.sup.5)--CH(R.sup.6)--O].sub.q is a sequence different from a polyoxyethylene sequence, preferably polyoxypropylene; A is H, a functional or hydrocarbon group. They can be prepared by successively polyalcoxylating the reagent Z-XH. They can be used as antifoaming agents in foaming aqueous media, in particular in degreasing aqueous media in alkaline medium of sheet metals, as well as detergent aqueous media in household washing or industrial and institutional washing.
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