US PATENT SUBCLASS 525 / 337
.~.~.~ Chemical treating agent contains boron or boron-containing compound other than boron trihalide or nonmetal complex thereof

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


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}
337.~.~.~ Chemical treating agent contains boron or boron-containing compound other than boron trihalide or nonmetal complex thereof

DEFINITION

Classification: 525/337

Chemical treating agent contains boron or boron-containing compound other than boron trihalide or nonmetal complex thereof:

(under subclass 55) Subject matter wherein the chemical treating is performed in the presence of boron, per se, or in the presence of a boron-containing compound, said boron compound being other than (a) boron trihalide, per se, (b) or a boron trihalide complexed with a nonmetal organic moiety.

SEE OR SEARCH THIS CLASS, SUBCLASS:

55, for boron trihalide ether, per se.

385, for a boron trihalide ether complex.