Moresco Corporation

Ryosuke Sagata

Tsuyoshi Shimizu

Haruo Kasai

Nagayoshi Kobayashi

Tomomi Hatta

Tomoko Honda

Provided are a fluoropolyether compound having high heat resistance and capable of maintaining a surface protection layer even under high temperature, and a lubricant and a magnetic disk that contain the fluoropolyether compound. The fluoropolyether compound includes: three groups whose main chain contains a perfluoropolyether chain; and a trivalent linking group represented by Formula (1) below, the three groups being bound together via the trivalent linking group: where Ris a saturated hydrocarbon group having 1 to 3 carbon atoms, a perfluoroalkyl group having 1 to 3 carbon atoms, an alkoxy group having 1 to 3 carbon atoms, a hydroxyl group, or an amino group, and A, A, and Aare each independently an aromatic group.

Fluoropolyether compound, lubricant, and magnetic disk

Provided is a compound with which a lubricant having excellent adhesion to a magnetic disk, particularly to a protective layer can be provided. A perfluoropolyether compound in accordance with one aspect of this invention has a structure in which two perfluoropolyethers are bonded to each other through an aliphatic ether, the aliphatic ether including a carbon atom to which a primary alcohol is bonded.

Perfluoropolyether compound, lubricant, and magnetic disk

The disclosure provides a fluoropolyether compound represented by formula (1):R&#x2014;CH&#x2014;R&#x2014;CH&#x2014;Rwherein Ris C-Calkoxy; Ris &#x2014;(CF)O(CFO)(CFCFO)(CFCFCFO)(CFCFCFCFO)(CF)&#x2014;; x and y are each a real number of 0 to 30; z is a real number of 0 to 30; w is a real number of 0 to 20; p is an integer of 1 to 3; Ris &#x2014;OCHCH(OH)CHOH, &#x2014;OCHCH(OH)CHOCHCH(OH)CHOH, &#x2014;O(CH)OH, or &#x2014;OCH(OH)CHCH&#x2014;OCH&#x2014;R; m is an integer of 2 to 8; and Ris hydrogen, C-Calkoxy, amino, or an amide residue; and also provides a lubricant having the compound and a magnetic disk.

Disclosed is a fluoropolyether compound comprising a Caliphatic hydrocarbon chain present in the middle of the fluoropolyether compound and at least two perfluoropolyethers.

Fluoropolyether compound, lubricant, magnetic disk, and method for producing same

A compound of the formula (1), lubricant containing the compound and magnetic diskR&#x2014;CHO&#x2014;CHCH(OH)CHOCH&#x2014;R&#x2014;CH&#x2014;O&#x2014;CHCH(OH)CH&#x2014;OCH&#x2014;R&#x2003;&#x2003;(1)wherein Ris alkoxyl having 1 to 4 carbon atoms, amino or amido, Ris &#x2014;CFCFO(CFCFCFO)CFCF&#x2014; or &#x2014;CFCFCFO(CFCFCFCFO)CFCFCF&#x2014;, z is a real number of 1 to 15, n is a real number of 0 to 4.

Fluoropolyether compound, and lubricant and magnetic disc comprising same

A compound of the formula (1), lubricant containing the compound and magnetic diskR&#x2014;CHO&#x2014;CHCH(OH)CHOCH&#x2014;R&#x2014;CH&#x2014;O&#x2014;R&#x2003;&#x2003;(1)wherein Ris hydrogen, alkoxyl having 1 to 4 carbon atoms, amino or amido, Ris &#x2014;CFO(CFCFO)(CFO)CF&#x2014;, &#x2014;CFCFO(CFCFCFO)&#x2014;CFCF&#x2014; or &#x2014;CFCFCFO(CFCFCFCFO)CFCFCF&#x2014;, x and y are each an integer of 0 to 15, z is an integer of 1 to 15, n is an integer of 0 to 4, Ris &#x2014;CHCH(OH)CHOH, &#x2014;CHCH(OH)CHOCHCH(OH)CHOH or &#x2014;(CH)OH, m is an integer of 2 to 6.

Growing community of inventors

Kobe, Japan

Ryosuke Sagata