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Optically transparent UV-protective coatings

  • US 4,799,963 A
  • Filed: 10/03/1986
  • Issued: 01/24/1989
  • Est. Priority Date: 10/03/1986
  • Status: Expired due to Term
First Claim
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1. An optically transparent coating composition which reduces transmission of ultraviolet radiation consisting essentially of:

  • a. a partially hydrolyzed alkoxide of the general formula Rx M(OR'"'"')z-x wherein R is an organic radical, M is selected from the group consisting of silicon, aluminum, titanium, zironium and mixtures thereof, R'"'"' is a low molecular weight alkyl radical, z is the valence of M and x is less than z and may be zero; and

    b. colloidal cerium oxide.

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