US PATENT SUBCLASS 525 / 439-- .~.~.~.~.~ Mixed with O-C(=O)-O-, hal-C(=O)-O-, or hal-C(=O)-hal containing reactant or polymer derived therefrom; or wherein solid polymer is derived from a hal-C(=O)-hal, O-C(=O)-O-, or hal-C(=O)-O-, a polycarboxylic acid or derivative and a polyhydroxy reactant

US PATENT SUBCLASS 525 / 439
.~.~.~.~.~ Mixed with O-C(=O)-O-, hal-C(=O)-O-, or hal-C(=O)-hal containing reactant or polymer derived therefrom; or wherein solid polymer is derived from a hal-C(=O)-hal, O-C(=O)-O-, or hal-C(=O)-O-, a polycarboxylic acid or derivative and a polyhydroxy reactant

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}
418	DF	.~.~ Solid polymer derived from at least one carboxylic acid or derivative {3}
419	DF	.~.~.~ Solid polymer derived from at least one lactam; from an amino carboxylic acid or derivative; or from a polycarboxylic acid or derivative {3}
437	DF	.~.~.~.~ Solid polymer derived from polyhydroxy reactant and polycarboxylic acid or derivative reactant; or derived from di- or higher ester of a polycarboxylic acid as sole reactant {9}
439		.~.~.~.~.~ Mixed with O-C(=O)-O-, hal-C(=O)-O-, or hal-C(=O)-hal containing reactant or polymer derived therefrom; or wherein solid polymer is derived from a hal-C(=O)-hal, O-C(=O)-O-, or hal-C(=O)-O-, a polycarboxylic acid or derivative and a polyhydroxy reactant

DEFINITION

Classification: 525/439

Mixed with -OO, hal, or halhal reactant or polymer derived therefrom; or wherein solid polymer is derived from ahalhal, -OO-, or halO-, a polycarboxylic acid or derivative and a polyhydroxy reactant:

(under subclass 437) Subject matter wherein the solid polymer derived from a polycarboxylic acid or derivative and a polyhydroxy reactant or from a di- or higher ester of polycarboxylic acid as sole reactant is mixed with -OO-, hal, halhal-containing reactant or polymer thereof; or wherein the solid polymer is derived from a polycarboxylic acid or derivative, a polyhydroxy reactant and a -OO, hal, halhal-containing reactant.