US PATENT SUBCLASS 508 / 466
.~.~.~.~ Polymer of alpha, beta-olefinically unsaturated dicarboxylic acid ester monomer, or of esterified alpha, beta-olefinically unsaturated dicarboxylic acid or anhydride monomer (e.g., copolymer of maleic acid ester and vinyl alkyl ether, etc.)


Current as of: June, 1999
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508 /   HD   SOLID ANTI-FRICTION DEVICES, MATERIALS THEREFOR, LUBRICANT OR SEPARATE COMPOSITIONS FOR MOVING SOLID SURFACES, AND MISCELLANEOUS MINERAL OIL COMPOSITIONS

110  DF  LUBRICANTS OR SEPARANTS FOR MOVING SOLID SURFACES AND MISCELLANEOUS MINERAL OIL COMPOSITIONS (E.G., WATER CONTAINING, ETC.) {53}
459  DF  .~ Organic -C(=O)O- compound {19}
463  DF  .~.~ Specified compound wherein the single bonded oxygen is bonded oxygen is bonded directly to an additional carbon, which carbon may be single bonded to any atom but may be multiple bonded only to carbon (i.e., specified carboxylic acid ester) {6}
465  DF  .~.~.~ Plural -C(=O)O- groups attached directly or indirectly to each other by nonionic bonding (e.g., estolides of hydroxy carboxylic acids, etc.) {8}
466.~.~.~.~ Polymer of alpha, beta-olefinically unsaturated dicarboxylic acid ester monomer, or of esterified alpha, beta-olefinically unsaturated dicarboxylic acid or anhydride monomer (e.g., copolymer of maleic acid ester and vinyl alkyl ether, etc.) {2}
467  DF  .~.~.~.~.~> Monocarboxylic acid ester of olefinically unsaturated alcohol is an additional monomer of the polymer (e.g., dialkyl furmarate-vinyl acetate copolymer, etc.)
468  DF  .~.~.~.~.~> Olefin or alpha, beta-olefinically unsaturated carboxylate is an additional monomer of the polymer (e.g., fumarate-ethylene or fumarate-acrylate copolymers, etc.)


DEFINITION

Classification: 508/466

Polymer of alpha, beta-olefinically unsaturated dicarboxylic acid ester monomer, or of esterified alpha, beta-olefinically unsaturated dicarboxylic acid or anhydride monomer (e.g., copolymer of maleic acid ester and vinyl alkyl ether, etc.):

(under subclass 465) Compositions wherein the compound having plural -C(=O)O- groups is a polymer prepared from an alpha, beta-olefinically unsaturated dicarboxylic acid ester monomer, or from an alpha, beta-olefinically unsaturated dicarboxylic acid or anhydride monomer which is esterified before, during, or after polymerization.

(1) Note. The monomers are normally addition polymerized through the olefinic double bond.

(2) Note. The polymers encompassed herein may be homopolymers or copolymers.

(3) Note. Typical alpha, beta-olefinically unsaturated dicarboxylic ester monomers are maleates and fumarates.