US PATENT SUBCLASS 424 / 78.18
.~.~ Polymer derived from ethylenic monomers only

Current as of: June, 1999
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424 /   HD   DRUG, BIO-AFFECTING AND BODY TREATING COMPOSITIONS

78.08  DF  SOLID SYNTHETIC ORGANIC POLYMER AS DESIGNATED ORGANIC ACTIVE INGREDIENT (DOAI) {6}
78.17  DF  .~ Aftertreated polymer (e.g., grafting, blocking, etc.) {2}
78.18.~.~ Polymer derived from ethylenic monomers only {2}
78.19  DF  .~.~.~> Heterocyclic monomer {2}
78.26  DF  .~.~.~> Chemical treating agent contains element other than C, H, O, alkali, or alkaline earth metal {1}

DEFINITION

Classification: 424/78.18

Polymer derived from ethylenic monomers only:

(under subclass 78.17) Subject matter wherein the polymer being aftertreated is derived from ethylenic monomers only; e.g., hydrolysing polyvinyl acetate to produce polyvinyl alcohol which is subsequently reacted with borax yielding a product proved to be an effective ruminant repellent to plant foliage, etc.

(1) Note. An ethylenic monomer is defined as one which contains at least two carbon atoms bonded together by a double or triple bond, with the proviso that the double bond is not part of an aromatic system; e.g., benzene, naphthalene, anthracene, etc. Included herein are; e.g., coumarone, indene, etc. Also, compounds such as pyridine are regarded as ethylenic monomers since they lack the carbocyclic system.

SEE OR SEARCH CLASS

525, Synthetic Resins or Natural Rubbers, appropriate subclasses for the aftertreatment of solid synthetic organic polymers.

526, Synthetic Resins or Natural Rubbers, for the preparation of solid synthetic polymers derived from ethylenic monomers

only; e.g., acrylic acid, etc.