US PATENT SUBCLASS 524 / 417
.~.~.~.~.~.~ Phosphorus atom directly bonded to four oxygen atoms, e.g., phosphoric acid, etc.

Current as of: June, 1999
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524 /   HD   SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE CLASS 520 SERIES

*  DD  SYNTHETIC RESINS (Class 520, Subclass 1) {1}
*  DD  .~ PROCESSES OF PREPARING A DESIRED OR INTENTIONAL COMPOSITION OF AT LEAST ONE NONREACTANT MATERIAL AND AT LEAST ONE SOLID POLYMER OR SPECIFIED INTERMEDIATE CONDENSATION PRODUCT, OR PRODUCT THEREOF (Class 523, subclass 1) {17}
1  DF  .~.~ Adding a NRM to a preformed solid polymer or preformed specified intermediate condensation product, composition thereof; or process of treating or composition thereof {31}
80  DF  .~.~.~ DNRM which is other than silicon dioxide, glass, titanium dioxide, water, halohydrocarbon, hydrocarbon, or elemental carbon {4}
401  DF  .~.~.~.~ Inorganic compound devoid of a silicon atom DNRM {15}
414  DF  .~.~.~.~.~ Phosphorus atom DNRM {2}
417.~.~.~.~.~.~ Phosphorus atom directly bonded to four oxygen atoms, e.g., phosphoric acid, etc.

DEFINITION

Classification: 524/417

Phosphorus atom directly bonded to four oxygen atoms, e.g., phosphoric acid, etc.:

(under subclass 414) Subject matter wherein the phosphorus compound contains at least four oxygen atoms directly bonded to a single phosphorus atom.

(1) Note. Included herein are phosphoric acid and phosphate salts thereof.