Fullerene derivative, fluororesin composition, and lubricant

Patent metadata

Field	Value
Publication number	US-2016347703-A1
Application number	US-201515116672-A
Country	US
Kind code	A1
Filing date	Feb 20, 2015
Priority date	Feb 21, 2014
Publication date	Dec 1, 2016
Grant date	—

Abstract

A fullerene derivative of the present invention has a fullerene skeleton and a plurality of perfluoropolyether chains in a molecule, wherein the perfluoropolyether chains are bonded to the fullerene skeleton via methano groups, and
a lubricant and fluororesin composition of the present invention contain the derivative.

First claim

1 . A fullerene derivative comprising, in a molecule,
a fullerene skeleton; and a plurality of perfluoropolyether chains linked to the fullerene skeleton via a carbon atom bonded to the fullerene skeleton at two locations.

2 . The fullerene derivative according to claim 1 , comprising 2 to 5 perfluoropolyether chains linked to the fullerene skeleton.

3 . The fullerene derivative according to claim 1 ,
wherein the fullerene derivative is a compound represented by the following general formula (1):

wherein FLN represents a fullerene skeleton, A represents a group having a perfluoropolyether chain, R 1 represents an organic group having 1 to 24 carbon atoms, m is an integer of 0 to 5, and n is an integer of 2 to 5.

4 . The fullerene derivative according to claim 3 , wherein the R 1 is an aryl group.

5 . The fullerene derivative according to claim 1 wherein the fullerene skeleton is C60.

6 . The fullerene derivative according to claim 1 ,
wherein the perfluoroether chains have at least one partial structure selected from the group consisting of —(CF 2 O) x —, —(CF 2 CF 2 O) x —, —(CF 2 CF 2 CF 2 O) x —, —(CF 2 CF 2 CF 2 CF 2 O) x —, and —(CF 2 (CF 2 ) 3 CF 2 O) x —: (with the proviso that in the formula, x is an integer of 1 to 50.)

7 . The fullerene derivative according to claim 1 ,
wherein the perfluoroether chains have a partial structure represented by —(CF 2 CF 2 O) y (CF 2 O) z —: (with the proviso that in the formula, y and z are integers of 1 to 50.)

8 . A fluororesin composition comprising the fullerene derivative according to claim 1 .

9 . A lubricant comprising the fullerene derivative according to claim 1 .

10 . The lubricant according to claim 9 , further comprising a perfluoropolyether compound having no fullerene skeleton.

Assignees

• Showa Denko Kk

Inventors

• Igarashi Takeshi
• Watanabe Kentaro

Classifications

• C10N2040/18

  in connection with recordings on magnetic tape or disc · CPC title

• C10N2030/06

  Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure · CPC title

• C10N2050/02

  dissolved or suspended in a carrier which subsequently evaporates to leave a lubricant coating · CPC title

• C07C69/76

  Esters of carboxylic acids having a carboxyl group bound to a carbon atom of a six-membered aromatic ring · CPC title

• C10M2211/0425

  used as base material · CPC title