US PATENT SUBCLASS 524 / 526
.~.~.~.~.~.~.~ Two or more polymers derived from reactant containing two or more ethylenic groups

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}
502  DF  .~.~.~.~ At least one solid polymer derived from ethylenic reactants only {11}
515  DF  .~.~.~.~.~ Two or more solid polymers derived from ethylenic reactants only {10}
525  DF  .~.~.~.~.~.~ Solid polymer derived from monomer containing two or more ethylenic groups {1}
526.~.~.~.~.~.~.~ Two or more polymers derived from reactant containing two or more ethylenic groups

DEFINITION

Classification: 524/526

Two or more polymers derived from reactant containing two or more ethylenic groups:

(under subclass 525) Subject matter wherein at least two polymers are derived from reactants containing two or more ethylenic groups.

(1) Note. The reactant containing two or more ethylenic groups may be the same or different. For instance, a blend of two different polybutadiene polymers would be proper herein.