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:
Oct. 16, 2001
Filed:
Jun. 20, 2000
Applicant:
Inventors:
Elaine A. Lange, Bellaire, TX (US);
Qun Lin, Spring, TX (US);
Assignee:
Enchira Biotechnology Corporation, The Woodlands, TX (US);
Primary Examiner:
Int. Cl.
CPC ...
C11D 1/22 ; C07C / ; C07C / ;
U.S. Cl.
CPC ...
C11D 1/22 ; C07C / ; C07C / ;
Abstract
The present invention relates to certain alkylated 2-(2-hydroxyphenyl) benzenesulfinic acid and 2-(2-hydroxyphenyl)benzenesulfonic acid compounds and compositions which consist essentially of 2-(2-hydroxyphenyl) benzenesulfinic acid, 2-(2-hydroxyphenyl)benzenesulfonic acid and/or substituted derivatives thereof. The compositions of the invention are useful as hydrotropes and are also of use as, or as starting materials for, surfactants, and as starting materials for the synthesis of other useful chemicals such as, polymers and resins, solvents, adhesives and biocides.