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Sulfonato-organosilanol compounds and aqueous solutions thereof

  • US 4,267,213 A
  • Filed: 10/10/1979
  • Issued: 05/12/1981
  • Est. Priority Date: 04/11/1978
  • Status: Expired due to Term
First Claim
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1. A process for imparting hydrophilicity to a substrate having a siliceous surface said process comprising the steps of:

  • (a) contacting said surface with an aqueous solution comprising a sulfonato-organosilanol compound having at least one sulfonato-organic substituent, wherein the weight percentage of oxygen in said compound is at least about 30%, and the weight percentage of silicon in said compound is not greater than about 15%, said percentages being taken with reference to the water-free acid form of said compound, and(b) drying said solution on said surface.

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