US PATENT SUBCLASS 523 / 124
.~.~ Composition containing an additive which enhances degradation by environmental stimuli or process of preparing

Current as of: June, 1999
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523 /   HD   SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE CLASS 520 SERIES

*  DD  SYNTHETIC RESINS (Class 520, Subclass 1) {1}
1  DF  .~ 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 {71}
124.~.~ Composition containing an additive which enhances degradation by environmental stimuli or process of preparing {2}
125  DF  .~.~.~> By light, heat, or radiation {2}
128  DF  .~.~.~> Containing carbohydrate or cellular material derived from plant or animal

DEFINITION

Classification: 523/124

Composition containing an additive which enhances degradation by environmental stimuli or process of preparing:

(under subclass 1) Subject matter wherein a composition is claimed or solely disclosed as having enhanced degradability by exposure to environmental stimuli or to processes of preparation thereof.

(1) Note. Environmental stimuli includes but are not limited to sunlight, heat, oxygen, moisture, radiation, organisms, etc.

(2) Note. For an explanation of patent placement referring to claimed or solely disclosed, see (in the class definition) the section of SEARCH THIS CLASS, SUBCLASS that refers to this subclass.

(3) Note. A composition which is pretreated by another chemical species in order to commence the degradation process is included herein.

(4) Note. Included herein are degradable agricultural mulches devoid of fertilizer content, as well as compositions which contain a material which generates oxygen by which an organic polymer composition is broken into smaller fragments, so that the smaller fragments can then be degraded by microorganisms or other environmental stimuli.

(5) Note. For purposes of this subclass, the solid polymer need not be the material having enhanced degradability.

(6) Note. A composition which contains a material which generates oxygen, by which an organic polymer composition is broken into smaller fragments; or a composition which is not

solely disclosed to be degradable by environmental stimuli, is placed in Classes 523 and 524 as appropriate hereinbelow.