US PATENT SUBCLASS 508 / 137
.~.~ With non-siliceous boron compound as additional component or surface- treating agent

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


508 /   HD   SOLID ANTI-FRICTION DEVICES, MATERIALS THEREFOR, LUBRICANT OR SEPARATE COMPOSITIONS FOR MOVING SOLID SURFACES, AND MISCELLANEOUS MINERAL OIL COMPOSITIONS

110  DF  LUBRICANTS OR SEPARANTS FOR MOVING SOLID SURFACES AND MISCELLANEOUS MINERAL OIL COMPOSITIONS (E.G., WATER CONTAINING, ETC.) {53}
136  DF  .~ Silicon dioxide, silicic acid, orthosilicate, or metasilicate, including surface-treated (e.g., clays, onium clays, estersils, etc.) {12}
137.~.~ With non-siliceous boron compound as additional component or surface- treating agent

DEFINITION

Classification: 508/137

With non-siliceous boron compound as additional component or surface-treating agent:

(under subclass 136) Compositions which contain, in addition to the silicon dioxide, silicic acid, metasilicate, or orthosilicate, a compound that contains boron but does not contain silicon; the compound may be present as an additional component or as a surface-treating agent for the silicon dioxide, silicic acid, orthosilicate, or metasilicate.

(1) Note. Examples of components provided for herein are boron nitride, boric acid, and trialkyl borate.