US PATENT SUBCLASS 524 / 359-- .~.~.~.~.~.~ Carbocyclic ring, e.g., benzophenone, etc.

US PATENT SUBCLASS 524 / 359
.~.~.~.~.~.~ Carbocyclic ring, e.g., benzophenone, 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}
356	DF	.~.~.~.~.~ Ketone or ketene DNRM, i.e., C(C=O)C or C=C=O {3}
359		.~.~.~.~.~.~ Carbocyclic ring, e.g., benzophenone, etc. {1}
360	DF	.~.~.~.~.~.~.~> Carbocyclic ring wherein one of the nuclear carbons thereof is double bonded directly to an oxygen atom so as to form a C=O group therewith, e.g., cyclohexanone, etc.

DEFINITION

Classification: 524/359

Carbocyclic ring, e.g., benzophenone, etc.:

(under subclass 356) Subject matter wherein the designated nonreactant material contains at least one ring system composed solely of carbon atoms.

(1) Note. Included herein are aryl or cycloaliphatic ring systems wherein a ketone or ketene group is bonded directly or indirectly thereto.

SEE OR SEARCH THIS CLASS, SUBCLASS:

360, for a ring system wherein one of the nuclear carbon atoms of the carbocyclic ring is double bonded directly to an oxygen atom so as to form a C=O group therewith.