US PATENT SUBCLASS 508 / 395
.~.~.~.~ Prepared by addition of carbon dioxide, carbonic acid, or salt thereof to a reaction mixture prior to addition of sulfonic acid or salt thereof (i.e., carbonating reaction mixture prior to addition of sulfonic acid or salt thereof)

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}
388  DF  .~ Organic sulfur compound, wherein the sulfur is single bonded directly to oxygen (e.g., sulfites, etc.) {2}
390  DF  .~.~ The sulfur is part of an -O-S(=O)(=O)- group (i.e., sulfonates) {12}
391  DF  .~.~.~ Overbased or carbonated sulfonates {7}
395.~.~.~.~ Prepared by addition of carbon dioxide, carbonic acid, or salt thereof to a reaction mixture prior to addition of sulfonic acid or salt thereof (i.e., carbonating reaction mixture prior to addition of sulfonic acid or salt thereof)

DEFINITION

Classification: 508/395

Prepared by addition of carbon dioxide, carbonic acid, or salt thereof to a reaction mixture prior to addition of sulfonic acid or salt thereof (i.e., carbonating reaction mixture prior to addition of sulfonic acid or salt thereof):

(under subclass 391) Compositions wherein the overbased or carbonated sulfonate is prepared by adding a sulfonic acid or salt thereof to a reaction mixture in which carbon dioxide, carbonic acid, or a salt thereof is already present.