US PATENT SUBCLASS 524 / 145
.~.~.~.~.~.~.~.~ -C-O-P-O-C, or C-O-P-OH group, e.g., phosphate ester, lecithin, 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}
136  DF  .~.~.~.~.~.~ Pentavalent phosphorus atom directly bonded to at least one oxygen atom {4}
140  DF  .~.~.~.~.~.~.~ P directly bonded to oxygen only {3}
145.~.~.~.~.~.~.~.~ -C-O-P-O-C, or C-O-P-OH group, e.g., phosphate ester, lecithin, etc.

DEFINITION

Classification: 524/145

-C-O-P-O-C or C-O-P-OH group, e.g., phosphate ester, lecithin, etc.:

(under subclass 140) Subject matter wherein the phosphorus compound is a phosphorus ester having at least two ester groups (i.e., C-O-P-O-C), or a phosphorus ester having a single ester group (i.e., C-O-P-OH).

(1) Note. Included herein is lecithin.