US PATENT SUBCLASS 525 / 330.6
.~.~.~.~.~ Alcoholized; transesterified; hydrolyzed; or metal containing chemical treating agent; e.g., saponified, etc.

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

*  DD  SYNTHETIC RESINS (Class 520, Subclass 1) {4}
50  DF  .~ MIXING OF TWO OR MORE SOLID POLYMERS; MIXING OF SOLID POLYMER OR SICP WITH SICP OR SPFI; MIXING OF SICP WITH AN ETHYLENIC AGENT; MIXING OF SOLID POLYMER WITH A CHEMICAL TREATING OR ETHYLENIC AGENT; OR PROCESSES OF FORMING OR REACTING; OR THE RESULTANT PRODUCT OF ANY OF THE ABOVE OPERATIONS {32}
55  DF  .~.~ At least one solid polymer derived from ethylenic reactants only {25}
326.1  DF  .~.~.~ Chemically after treated solid polymers derived from ethylenically unsaturated monomers only {24}
330.3  DF  .~.~.~.~ Polymer derived from acrylic or methacrylic esters, or vinyl acetate monomer {3}
330.6.~.~.~.~.~ Alcoholized; transesterified; hydrolyzed; or metal containing chemical treating agent; e.g., saponified, etc.

DEFINITION

Classification: 525/330.6

Alcoholized; transesterified; hydrolyzed; or metal containing chemical treating agent; e.g., saponified, etc.:

(under subclass 330.3) Product wherein a chemical modification of the solid polymer is described as alcoholysis, transesterification, or hydrolysis; or wherein a metal containing chemical treating agent has been employed.

(1) Note. For purposes of this subclass, alcohoysis relates to the reaction of an alcohol with a carboxylic acid ester to yield a new ester and alcohol.

(2) Note. For purposes of this subclass transesterification or ester interchange relates to reaction of two esters to form two new esters by exchange of alcohol residues.

(3) Note. For purposes of this subclass, hydrolysis relates to addition of water to an ester to form an alcohol and a carboxylic acid. This reaction can be either acid or base catalysed.

(4) Note. Alkaline hydrolysis of an ester is called saponification.