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:
Jul. 16, 2013
Filed:
Mar. 02, 2011
Daisuke Shirakawa, Tokyo, JP;
Yoshiyuki Gozu, Tokyo, JP;
Yoshitomi Morisawa, Tokyo, JP;
Asahi Glass Company, Limited, Tokyo, JP;
Abstract
To provide a method for producing a perfluoro compound having hydroxyl groups, whereby agglomeration of a reduction reaction intermediate tends not to occur during a reduction reaction, and a perfluoro compound having —C(═O)OH can be used as a starting material. Reducing (A-C(═O)=Q=)Rin the presence of a metal hydride and an inorganic salt of lithium in an alcohol solvent to obtain (B—CH(OH)-Q-)(A-C(═O)-Q-)R, wherein A is a hydroxyl group, a Calkoxy group, a hydrogen atom, a Calkyl group or the like, Q is a perfluoroalkylene group or the like, n is an integer of at least 1, m is an integer at least 0 and less than n, Ris an n valent perfluoro saturated hydrocarbon group or the like, and B is a group depending on A wherein when A is a hydroxyl group, a Calkoxy group or the like, B is a hydrogen atom, and when A is a hydrogen atom, a Calkyl group or the like, B is the same group as A.