US PATENT SUBCLASS 524 / 541
.~.~.~.~.~ Aldehyde or derivative reactant

Current as of: June, 1999
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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}
500  DF  .~.~.~ Containing two or more solid polymers; solid polymer or SICP and a SICP, SPFI, or an ethylenic reactant or product thereof {7}
540  DF  .~.~.~.~ Solid polymer or SICP derived from at least one phenol or inorganic phenolate reactant {1}
541.~.~.~.~.~ Aldehyde or derivative reactant

DEFINITION

Classification: 524/541

Aldehyde or derivative reactant:

(under subclass 540) Subject matter wherein the solid polymer or SICP is derived from a phenol or inorganic phenolate and an aldehyde or aldehyde derivative.

(1) Note. See the Class 520 Glossary for a definition of the term "aldehyde or aldehyde derivative".