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US 4,478,905 AGranted
Spandrel product with silicate coating
AssigneePPG Industries, Inc.
InventorJames E. Neely, Jr.
Life of this patent
Estimating the term…
Abstract
A spandrel product is disclosed wherein the opaque coating is formulated from an alkali silicate composition cured with an inorganic hardener.
Claims16
An article of manufacture comprising:
- a. a rigid substrate;
- and
- b. disposed on a major surface of said substrate an opaque coating composition comprising:
- 1. an alkali silicate;
- and
- 2. an aluminum trimetaphosphate hardener predominantly in the B-form.
3 more elements
An article of manufacture comprising:
- a. a glass substrate;
- and
- b. disposed on a major surface of said substrate an opaque coating composition comprising:
- 1. an alkali silicate;
- and
- 2. an aluminum trimetaphosphate hardener predominantly in the B-form.
3 more elements
An article according to claim 13, wherein the composition further comprises a component selected from the group consisting of pigments, fillers and mixtures thereof.
Dependencies are inferred from the claim text.