US PATENT SUBCLASS 525 / 389
.~.~ Solid polymer derived from reactant containing atoms other than C, H, N, Si, P, chalcogen, halogen, or an alkali or alkaline earth metal in salt form

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}
389.~.~ Solid polymer derived from reactant containing atoms other than C, H, N, Si, P, chalcogen, halogen, or an alkali or alkaline earth metal in salt form

DEFINITION

Classification: 525/389

Solid polymer derived from reactant containing atoms other than C, H, N, Si, P, chalcogen, halogen, or an alkali or alkaline earth metal in salt form:

(under subclass 50) Subject matter involves the process of mixing a solid polymer derived from a reactant containing elements other than C, H, N, P, Si, chalcogen or halogen with an additional solid polymer, with specified polymer-forming

ingredients, specfied intermediate condensation product, chemical treating agent, or with an ethylenic agent; processes of reacting the above mixtures of products resulting from the mixing or reacting processes.

(1) Note. Chalcogen is limited to oxygen, sulfur, selenium, or tellurium.

SEE OR SEARCH CLASS

520, Synthetic Resins or Natural Rubbers, the Glossary, for a definition of the terms "specified polymer-forming ingredients" or "specified intermediate condensation product".