The Dow Chemical Company

Phillip L Wing

James K Jennings

Terry L Lamb

George A Sweeney

A process for preparing a substrate backed with a polymer derived from an organic polyisocyanate, said process comprising the steps of

Polyurethane backed carpet

Gellation resistant aqueous glycol compositions useful as antifreeze compositions are disclosed containing silicates together with other corrosion inhibitors. The silicates are added to the glycol compositions after the other additives have been added and after the composition has been adjusted to a pH range of 7-12. The gellation resistance is obtained or enhanced by the addition of an effective amount of the hydrolyzate of organo-phosphorous-silicon compounds having the formula

Glycol compositions containing a hydrolyzate of an organo

Gellation resistant aqueous glycol and glycol ether compositions useful as antifreeze compositions are disclosed containing silicates together with other corrosion inhibitors. The silicates are added to the glycol compositions after the other additives have been added and after the composition has been adjusted to a pH range of 7-12. The gellation resistance is obtained or enhanced by the addition of an effective amount of a glycol soluble ether modified silicone having the repeating units ##STR1## wherein x has an average value range from 1.8 to 6.8

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Lake Jackson, TX, United States of America

Phillip L Wing