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:
Mar. 31, 1987
Filed:
Sep. 17, 1985
Applicant:
Inventors:
Assignee:
Mitsui-Toatsu Chemicals, Incorporated, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
2605 / ;
Abstract
Hydroxyalkanesulfonic acids of the general formula ##STR1## where R is a lower alkyl group having 1 to 10 carbon atoms, and derivatives (such as alkali metal salts and the like) of the sulfonic acids are novel compounds. These compounds can be prepared, for example, by a process which comprises reacting an .alpha.-alkylstyrene with the hydrogensulfite ion in an aqueous medium in the presence of oxygen. These compounds are useful as raw materials for the manufacture of amidoalkanesulfonic acid derivatives having such applications as lime soap dispersants, raw materials for the synthesis of water-soluble polymers, fiber modifiers and the like.