US PATENT SUBCLASS 524 / 285
.~.~.~.~.~.~ Cycloaliphatic group or bridged or fused ring system, e.g., camphoric acid, etc.

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


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}
284  DF  .~.~.~.~.~ Carboxylic acid or derivative and wherein the derivative is other than a metal salt DNRM {3}
285.~.~.~.~.~.~ Cycloaliphatic group or bridged or fused ring system, e.g., camphoric acid, etc. {1}
286  DF  .~.~.~.~.~.~.~> Naphthenic acid or derivative

DEFINITION

Classification: 524/285

Cycloaliphatic group or bridged or fused ring system, e.g., camphoric acid, etc:

(under subclass 284) Subject matter wherein the carboxylic acid or derivative contains a carbocyclic ring other than as aryl; or contains a bridged- or fused-ring system, e.g., camphoric acid, etc.

(1) Note. See the Class 520 Glossary for a definition of the term "fused or bridged ring".

SEE OR SEARCH THIS CLASS, SUBCLASS:

270+, for abietic acid (rosen) or a modified form thereof.