US PATENT SUBCLASS 8 / 901
.~ Quaternary ammonium salts

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

Internet Version by PATENTEC © 1999      Terms of Use


8 /   HD   BLEACHING AND DYEING; FLUID TREATMENT AND CHEMICAL MODIFICATION OF TEXTILES AND FIBERS

900  DF  BASIC EMULSIFIERS FOR DYEING {1}
901.~ Quaternary ammonium salts

DEFINITION

Classification: 8/901

Quaternary ammonium salts:

(under subclass 900) Emulsifiers wherein the emulsifier is a quaternary ammonium salt.