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:
Feb. 19, 2013
Filed:
Sep. 08, 2010
Yoshiyama Kaneumi, Ibaraki, JP;
Seiichiro Murata, Ibaraki, JP;
Katsuyuki Sato, Ibaraki, JP;
Unimatec Co., Ltd., Tokyo, JP;
Abstract
Disclosed is a polyfluoroalkylphosphonic acid oxyalkylene ester of the formula: CF(CHCF)(CFCF)(CHCH)P(O)[O(RO)R'](OH)(RO is a C-Clinear or branched oxyalkylene group, R′ is a hydrogen atom or a C-Calkyl group or aralkyl group, n is 1 to 6, a is 1 to 4, b is 1 to 3, c is 1 to 3, d is 1 or 2, and m is 1 to 100), which is a compound having a perfluoroalkyl group containing 6 or less carbon atoms and referred to as having low bioaccumulation potential, and exhibiting, when used as an active ingredient of a mold-releasing agent, mold release performance equivalent to that of a compound having a perfluoroalkyl group containing 8 or more carbon atoms. This compound is produced by subjecting a polyfluoroalkylphosphonic acid of the formula: CF(CHCF)(CFCF)(CHCH)P(O)(OH)and a polyalkyleneglycol or a monoether thereof of the formula: HO(RO)R′ to a condensation reaction.