Alpha-sulfopolyfluoromonocarboxylic acids and derivatives hydrolyzable thereto

• US 2,852,554 A
• Filed: 07/12/1956
• Issued: 09/16/1958
• Est. Priority Date: 07/12/1956
• Status: Expired due to Term

• Current Assignee: David C. England
• Original Assignee: David C. England
• Inventors: England, David C.
• Application Number:
  US03/597,321
• Time in Patent Office: 796 Days
• US Class Current: 560/149
• CPC Class Codes: C07C 309/15 the nitrogen atom of at least one of the amino groups being part of any of the groups , X being a hetero atom, Y being any atom
• CPC Class Codes: C07C 309/17 containing carboxyl groups bound to the carbon skeleton
• CPC Class Codes: C07C 309/65 of a saturated carbon skeleton
• CPC Class Codes: C07C 309/84 of a carbon skeleton substituted by carboxyl groups
• CPC Class Codes: C07C 311/06 to acyclic carbon atoms of hydrocarbon radicals substituted by carboxyl groups
• CPC Class Codes: C07C 331/04 having sulfur atoms of thiocyanate groups bound to acyclic carbon atoms
• CPC Class Codes: C07D 295/185 from aliphatic carboxylic acids
• CPC Class Codes: C07D 327/02 one oxygen atom and one sulfur atom
• CPC Class Codes: Y10S 8/93 Pretreatment before dyeing

Claims

1. A MEMBER OF THE CLASS CONSISTING OF SATURATED A-SULFOPOLYFLUOROMONOCARBOXYLIC ACIDS AND DERIVATIVES THEREOF HYDROLYZABLE THERETO, SAID ACIDS HAVING THE SULFO GROUPS, THE CARBOXYL GROUP AND AT LEAST ONE FLUORINE ATTACHED TO THE TERMINAL CARBON OF A SATURATED POLYFLUOROCARBON RADICAL, AND HAVING, IN ADDITION TO FLUORINE AND CARBON IN SAID RADICAL, AT MOST ONE OTHER ATOM AND THAT HYDROGEN ON THE OMEGA CARBON.