| 摘要 |
<p>Glycol concentrates containing alkali metal silicates are rendered gellation resistant by the addition of phosphonates having one of the formulas, (I) (RO)3-m(R')msi-R2-O-P(O)(OR3)(R4), (II) ¢(RO)3 m(R')mSi-R2-O!2P(O)(R4), or (III) mixtures of I and II, wherein m is 0-2 R, R3, R4 are alkyl groups of 1-4 carbons, R' is an alkyl group of 1-4 carbons, phenyl, and aralkyl group of 7-10 carbons, and R2 is an alkylene group of 1-4 carbons. 29,408-F</p> |
