US PATENT SUBCLASS 524 / 336
.~.~.~.~.~.~.~.~ A single C=O group


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}
323  DF  .~.~.~.~.~ Aryl-OH or salt or aryl-O-metal bond DNRM {12}
334  DF  .~.~.~.~.~.~ Oxygen other than as part of an aryl-OH group {2}
335  DF  .~.~.~.~.~.~.~ C=O group {1}
336.~.~.~.~.~.~.~.~ A single C=O group {2}
337  DF  .~.~.~.~.~.~.~>.~.~ Aryl group having two or more OH groups directly attached to nuclear carbons thereof
338  DF  .~.~.~.~.~.~.~>.~.~ Two or more aryl-OH groups


DEFINITION

Classification: 524/336

A single C=O group:

(under subclass 335) Subject matter wherein the carbonyl compound contains only one carbonyl group, e.g., 2-hydroxy-benzophenone, etc.