US PATENT SUBCLASS 427 / 397.8
.~.~.~ Alkali silicate

Current as of: June, 1999
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427 /   HD   COATING PROCESSES

331  DF  WITH POST-TREATMENT OF COATING OR COATING MATERIAL {14}
372.2  DF  .~ Heating or drying (e.g., polymerizing, vulcanizing, curing, etc.) {8}
397.7  DF  .~.~ Inorganic silicon-containing coating {1}
397.8.~.~.~ Alkali silicate

DEFINITION

Classification: 427/397.8

Alkali silicate:

(under subclass 397.7) Processes wherein the resultant coating is an alkali silicate.

(1) Note. The coating before treatment may contain an organic silicate, such as alkyl silicate, but for classification here such must be present merely as a precursor for the ultimate inorganic silicate.