US PATENT SUBCLASS 524 / 123
.~.~.~.~.~.~.~ Phosphorus bonded directly to three chalcogen atoms and having only one P-C linkage, e.g., phosphonate, 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}
81  DF  .~.~.~.~ Organic DNRM {21}
115  DF  .~.~.~.~.~ Phosphorus organic compound DNRM {8}
121  DF  .~.~.~.~.~.~ Two or more phosphorus atoms directly or indirectly bonded together by only covalent bonds {6}
123.~.~.~.~.~.~.~ Phosphorus bonded directly to three chalcogen atoms and having only one P-C linkage, e.g., phosphonate, etc. {2}
124  DF  .~.~.~.~.~.~.~>.~ Nitrogen
125  DF  .~.~.~.~.~.~.~>.~ Aryl group

DEFINITION

Classification: 524/123

Phosphorus bonded directly to three chalcogen atoms and having only one P-C linkage e.g., phosphonate, etc.:

(under subclass 121) Subject matter wherein the phosphorus is directly bonded to three chalcogen atoms (i.e., oxygen, sulfur, selenium, or tellurium), and a single carbon atoms, e.g., 1-hydroxyethane, 1,1-diphosphonic acid, as illustrated below, etc. [figure]