US PATENT SUBCLASS 524 / 757
.~.~.~.~ Mixture of ether compounds; or only two ether oxygens bonded to a carbon atom, e.g., formal, acetal, etc.


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}
700  DF  .~.~ Preparation of intentional or desired composition by formation of a solid polymer (SP) or SICP in presence of a designated nonreactant material (DNRM) other than solely water, hydrocarbon, silicon dioxide, glass, titanium dioxide or elemental carbon, composition thereof; or process of treating or composition thereof {23}
755  DF  .~.~.~ Ether compound DNRM, e.g., aryl ether, dimethylether, etc. {4}
757.~.~.~.~ Mixture of ether compounds; or only two ether oxygens bonded to a carbon atom, e.g., formal, acetal, etc.


DEFINITION

Classification: 524/757

Mixture of ether compounds; or only two ether oxygens bonded to a carbon atom, e.g., formal acetal, etc.:

(under subclass 755) Subject matter wherein there are at least two ether compounds as DNRM; or wherein the ether compound has at least one carbon atom which has only two ether linkages attached to the carbon, e.g., -C-O--O-C-, etc.