The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 19, 2000
Filed:
Dec. 27, 1996
Applicant:
Inventors:
Ruoxin Li, Plainsboro, NJ (US);
David James Tracy, Plainsboro, NJ (US);
Jiang Yang, Plainsboro, NJ (US);
Manilal S Dahanayake, Princeton Junction, NJ (US);
Assignee:
Rhodia Inc., Cranbury, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C11D / ; C11D / ;
U.S. Cl.
CPC ...
510340 ; 510351 ; 510506 ; 510535 ; 558 20 ; 558 24 ; 558 22 ; 558 26 ; 558 31 ; 558 32 ; 558 34 ; 558161 ; 558163 ; 558165 ; 558179 ; 558183 ; 558186 ; 558194 ; 558198 ; 562101 ; 562103 ; 562109 ; 562110 ; 562111 ; 562112 ; 562582 ;
Abstract
A novel class of anionic surfactants with improved surfact active properties is comprised of two hydrophilic and two hydrophobic groups represented by the formula: ##STR1## The surfactants exhibit unusually low critical micelle concentration (cmc) and pC-20 values in aqueous media.