Anti-gel characteristics of silicate-containing antifreeze compositions
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United States of America Patent
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Jul 3, 1984
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N/A
app pub date -
Jul 14, 1983
filing date -
Jul 14, 1983
priority date (Note) -
Expired
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Abstract
A method and a composition for improving the anti-gel characteristics of antifreeze compositions which contain silicate corrosion inhibitors are disclosed. The anti-gel characteristics are improved through the use of a mercaptosilane of the formula: (SH--R.sub.1).sub.n --Si(R.sub.2).sub.4-n wherein n is 1, 2, or 3, R.sub.1 is branched or straight chain alkyl with 1 to 8 carbon atoms or aromatic with 6 to 10 carbon atoms, and R.sub.2 is a reactive group which will cause the mercaptosilane to form a silanol when hydrolyzed.
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