Unimatec Co., Ltd

Kimihiko Urata

Keisuke Kokin

Takehiro Sonoi

Akira Endo

Katsuyuki Sato

Yoshiyama Kaneumi

Sunao Ikeda

Yuichiro Oda

Takuya Kondo

A perfluoropolyether phosphate ester represented by the general formula:[CFO{CF(CF)CFO}CF(CF)CHO]PO(OH)(wherein n is an integer of 1 to 20). This compound is obtained by reacting a perfluoropolyether alcohol represented by the general formula:CFO{CF(CF)CFO}CF(CF)CHOH(wherein n is an integer of 1 to 20) with phosphorus oxychloride, and hydrolyzing the obtained compound represented by the general formula:[CFO{CF(CF)CFO}CF(CF)CHO]POCl(wherein n is an integer of 1 to 20). Moreover, the perfluoropolyether phosphate ester or a salt thereof forms a surface treatment agent comprising the perfluoropolyether phosphate ester or a salt thereof as an active ingredient.

Perfluoropolyether phosphate ester, method for producing the same, and surface treatment agent comprising the same as active ingredient

Problem: To provide a novel compound capable of preventing pyrolysis of fluorinated oils when it is used as an additive for the fluorinated oils. Solution Means: A compound represented by Formula (1):  wherein Y represents an oxygen atom (O), a sulfur atom (S), a CO group, a SO group, or a SOgroup; k is an integer from 1 to 5; m is an integer from 1 to 10; and n is an integer of 1 or more; and wherein two substituents on each phenyl group may be in any of ortho-, meta-, and para-positions.

Compound, synthesis method thereof, and oil additive

An iodine-containing fluoropolyether represented by the following general formula [I]:RfO[CF(CF)CFO]CF(CF)(CH)I&#x2003;&#x2003;[I](where Rf is a perfluoroalkyl group having 1-3 carbon atoms, m is an integer of 0-10, and n is an integer of 3-12), is a novel compound having a perfluoropolyetheralkyl group capable of giving a flexibility to the molecule chain through the etheral bond, said perfluoropolyether alkyl group being bonded to the alkyl iodide having an alkyl group having 3 or more carbon atoms, and can be produced by reaction of a fluoropolyether group-containing alcohol represented by the following general formula [II]:RfO[CF(CF)CFO]CF(CF)(CH)OH&#x2003;&#x2003;[II](Where Rf, m, and n have the same meanings as defined above) with a metal iodide, preferably potassium iodide.

Iodine-containing fluoropolyether and process for producing the same

An alkylamino group-terminated fluoroether compound, represented by the following general formula:RfO[CF(CF)CFO]CF(CF)(CH)NRR(where Rf is a perfluoro lower-alkyl group, Ris an alkyl group having 1-12 carbon atoms, Ris a hydrogen atom, or an alkyl group having 1-12 carbon atoms, m is an integer of 0-10, and n is an integer of 3-8) is a novel compound, and is produced by reaction of an iodide-terminated fluoroether compound, represented by the following general formula:RfO[CF(CF)CFO]CF(CF)(CH)Iwith an alkylamine compound, represented by the following general formula:NHRR.

Alkylamino group-terminated fluoroether and process for producing the same

A polyfluoroalkyl ester of unsaturated carboxylic acid is produced in high yield in a more simple reactor and with much more reduction in the waste than the conventional process based on esterification reaction by subjecting a polyfluoroalkanol represented by the following general formula:Rf&#x2014;R&#x2014;OHwhere Rf is a polyfluoroalkyl group having 1&#x2013;6 carbon atoms and R is an alkylene group having 1&#x2013;6 carbon atoms, and an unsaturated carboxylic acid to dehydration reaction in a fluorine-containing solvent in the presence of an acid catalyst and a polymerization inhibitor.

Growing community of inventors

Ibaraki, Japan

Kimihiko Urata