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. 23, 2010
Filed:
Nov. 24, 2005
Seiichiro Murata, Kitaibaraki, JP;
Hideki Abe, Kitaibaraki, JP;
Keisuke Kokin, Kitaibaraki, JP;
Unimatec Co., Ltd., Tokyo, JP;
Abstract
A fluorine-containing polyether phosphonic acid ester compound represented by the following general formula:(RO)(RO)P(O)(CH)CF(CF)[OCFCF(CF)]O(CF)CO[CF(CF)CFO]CF(CF)(CH)P(O)(OR)(OR)(where R, R, Rand Rare hydrogen atoms, alkyl groups, cycloalkyl groups, aryl groups, alkylaryl groups, aralkyl groups, or any of the foregoing groups substituted with halogen atoms, and subscripts a, b, c, d, and e are in conditions of 2≦a+e≦8, b+d≦28, and 1≦c≦10, and subscripts b and d may be 0). The fluorine-containing polyether phosphonic acid ester compound is produced by reaction of a fluorine-containing polyether dialkyl halide represented by the following general formula:X(CH)CF(CF)[OCFCF(CF)]O(CF)O[CF(CF)CFO]CF(CF)(CH)X (X: Cl, Br or I) with a phosphite compound represented by the following general formula:(RO)(RO)P(OR) and/or (RO)(RO)P(OR) (R: a hydrogen atom or a lower alkyl group).