Composition comprising perfluoropolyether

1. A composition comprising an aryl perfluoropolyether which is a monofunctional aryl perfluoropolyether having the formula of R f —(Y) a —(C t R (u+v) )—(O—C t R 1 (u+v) ) b —R wherein

R f has a formula weight of about 400 to about 15,000;

R f comprises repeat units selected from the group consisting of

(a) J-O—(CF(CF 3 )CF 2 O) c (CFXO) d CFZ—,

(b) J 1 -O—(CF 2 CF 2 O) e (CF 2 O) f CFZ 1 —,

(c) J 2 -O—(CF(CF 3 )CF 2 O) j CF(CF 3 )—,

(d) J 3 -O-(CQ 2 -CF 2 CF 2 —O) k -CQ 2 -,

(e) J 3 -O—(CF(CF 3 )CF 2 O) g (CF 2 CF 2 O) h (CFX—O) i —CFZ—,

(f) J 4 -O—(CF 2 CF 2 O) k —CF 2 —, and

(g) combinations of two or more thereof; and

where

the units with formulae CF 3 CF 2 O and CF 2 O are randomly distributed along the chain;

J is CF 3 , C 2 F 5 , C 3 F 7 , CF 2 Cl, C 2 F 4 Cl, C 3 F 6 Cl, or combinations of two or more thereof;

c and d are numbers such that the c/d ratio ranges from about 0.01 to about 0.5;

X is —F, —CF 3 , or combinations thereof;

Z is —F, —Cl or —CF 3 ;

Z 1 is —F or —Cl,

J 1 is CF 3 , C 2 F 5 , C 3 F 7 , CF 2 Cl, C 2 F 4 Cl, or combinations of two or more thereof;

e and f are numbers such that the elf ratio ranges from about 0.3 to about 5;

J 2 is —C 2 F 5 , —C 3 F 7 , or combinations thereof;

j is an average number such that the formula weight of R f ranges from about 400 to about 15,000;

J 3 is CF 3 , C 2 F 5 , C 3 F 7 , or combinations of two or more thereof;

k is an average number such that the formula weight of R f ranges from about 400 to about 15,000;

each Q is independently —F, —Cl, or —H;

g, h and i are numbers such that (g+h) ranges from about 1 to about 50, the i/(g+h) ratio ranges from about 0.1 to about 0.5;

J 4 is CF 3 , C 2 F 5 , or combinations thereof;

k′ is an average number such that the formula weight of R f ranges from about 400 to about 15,000;

each R is independently —H, a halogen, —OH, —SO 3 M, NR 3 2 , —NO 2 , —R 4 OH, —R 4 SO 3 M, —R 4 NR 3 2 , —R 4 NO 2 , —R 4 CN, —C(O)OR 4 , —C(O)OM, —C(O)R 4 , —C(O)NR 3 2 , or combinations of two or more thereof; except that when b=0, R cannot be four hydrogen atoms and —OH, or —Br, or —NH 2 ; or R cannot be solely H or —NO 2 , or combinations thereof;

each R 1 is independently H, —R 4 , —OR 4 , a halogen, —OH, —SO 3 M, —NR 3 2 , —NO 2 , —CN, —R 4 OH, —R 4 SO 3 M, —R 4 NR 3 2 , —R 4 NO 2 , —R 4 CN, —C(O)OR 4 , —C(O)OM, —C(O)R 4 , —C(O)NR 3 2 , or combinations of two or more thereof provided that if b=0, the combination of R and R 2 cannot be four or more hydrogen atoms and —OH, —Br, —NH 2 , or —NO 2 ;

each R 3 is independently H, C 1 -C 10 alkyl, or combinations of two or more thereof;

R 4 is a C 1 -C 10 alkyl;

M is a hydrogen or metal ion;

a is 0 or 1;

b is 0-5;

Y is a divalent radical —CH 2 OCH 2 —, —(CH 2 ) o —O—, —(CF 2 ) n —, —CF 2 O—, —CF 2 OCF 2 —, —C(O)—, —C(S)—, or combinations of two or more thereof;

n is about 1 to about 5;

o is about 2 to about 5;

t is equal to 6+u;

u is any combination of 0, 2, 4, 6, 8, 10, 12, 14, 16; and

v is independently either 2 or 4.

2. A composition according to claim 1 wherein M is H, Li, Na, K, Ca, or combinations of two or more thereof.

3. A composition according to claim 1 wherein b is 0 and R is not four hydrogen atoms and —OH, or —Br, or —NH 2 ; or solely H or —NO 2 groups or combinations thereof.

4. A composition according to claim 1 wherein said aryl perfluoropolyether is CF 3 (CF 2 ) 2 (OCF(CF 3 )CF 2 ) y OCF(CF 3 )CF 2 C 6 Br 3 H 2 ,

CF 3 (CF 2 ) 2 (OCF(CF 3 )CF 2 ) y OCF(CF 3 )CF 2 C 6 F 3 H 2 ,

CF 3 (CF 2 ) 2 (OCF(CF 3 )CF 2 ) y OCF(CF 3 )CF 2 C 6 H 4 Cl,

CF 3 (CF 2 ) 2 (OCF(CF 3 )CF 2 ) y OCF(CF 3 )CF 2 C 6 H 4 N(CH 3 ) 2 ,

CF 3 (CF 2 ) 2 (OCF(CF 3 )CF 2 ) y OCF(CF 3 )CF 2 C 6 H 3 [OC(O)CH 3 ] 2 ,

CF 3 (CF 2 ) 2 (OCF(CF 3 )CF 2 ) y OCF(CF 3 )CF 2 C 6 H 4 SO 3 M,

CF 3 (CF 2 ) 2 (OCF(CF 2 ) y OCF(CF 3 )CF 2 C 6 H 3 (OH) 2 ,

CF 3 (CF 2 ) 2 (OCF(CF 3 )CF 2 ) y OCF(CF 3 )CF 2 C 6 H 4 OC 6 H 5 ,

CF 3 (CF 2 ) 2 (OCF(CF 3 )CF 2 ) y OCF(CF 3 )CF 2 (C 6 H 4 O) 2 C 6 H 5 ,

CF 3 (CF 2 ) 2 (OCF(CF 3 )CF 2 ) y OCF(CF 3 )CF 2 C 6 H 4 OC 6 H 4 SO 3 M,

CF 3 (CF 2 ) 2 (OCF(CF 3 )CF 2 ) y OCF(CF 3 )CF 2 OC 6 H 4 OC 6 H 4 NO 2 ,

CF 3 (CF 2 ) 2 (OCF(CF 3 )CF 2 ) y OCF(CF 3 )CF 2 C 10 H 6 SO 3 M, or combinations of two or more thereof and y is from about 3 to about 100.

5. A composition according to claim 4 wherein said aryl perfluoropolyether is

CF 3 (CF 2 ) 2 (OCF(CF 3 )CF 2 ) y OCF(CF 3 )CF 2 C 6 H 4 SO 3 M,

CF 3 (CF 2 ) 2 (OCF(CF 3 )CF 2 ) y OCF(CF 3 )CF 2 C 6 H 3 (OH) 2 ,

CF 3 (CF 2 ) 2 (OCF(CF 3 )CF 2 ) y OCF(CF 3 )CF 2 C 6 H 4 OC 6 H 5 ,

CF 3 (CF 2 ) 2 (OCF(CF 3 )CF 2 ) y OCF(CF 3 )CF 2 (C 6 H 4 O) 2 C 6 H 5 ,

CF 3 (CF 2 ) 2 (OCF(CF 3 )CF 2 ) y OCF(CF 3 )CF 2 C 6 H 4 OC 6 H 4 SO 3 M,

CF 3 (CF 2 ) 2 (OCF(CF 3 )CF 2 ) y OCF(CF 3 )CF 2 OC 6 H 4 OC 6 H 4 NO 2 ,

CF 3 (CF 2 ) 2 (OCF(CF 3 )CF 2 ) y OCF(CF 3 )CF 2 C 10 H 6 SO 3 M, or combinations of two or more thereof.

6. A composition according to claim 5 wherein said aryl perfluoropolyether is

CF 3 (CF 2 ) 2 (OCF(CF 3 )CF 2 ) y OCF(CF 3 )CF 2 C 6 H 4 SO 3 M,

CF 3 (CF 2 ) 2 (OCF(CF 3 )CF 2 ) y OCF(CF 3 )CF 2 C 6 H 4 OC 6 H 4 SO 3 M,

CF 3 (CF 2 ) 2 (OCF(CF 3 )CF 2 ) y OCF(CF 3 )CF 2 C 10 H 6 SO 3 M, or combinations of two or more thereof and M is H, Li, Na, K, Ca, or combinations of two or more thereof.

7. A composition according to claim 6 wherein said aryl perfluoropolyether is CF 3 (CF 2 ) 2 (OCF(CF 3 )CF 2 ) y OCF(CF 3 )CF 2 C 6 H 4 SO 3 M.

8. A composition according to claim 6 wherein said aryl perfluoropolyether is CF 3 (CF 2 ) 2 (OCF(CF 3 )CF 2 ) y OCF(CF 3 )CF 2 C 6 H 4 OC 6 H 4 SO 3 M.

9. A composition according to claim 6 wherein said aryl perfluoropolyether is CF 3 (CF 2 ) 2 (OCF(CF 3 )CF 2 ) y OCF(CF 3 )CF 2 C 10 H 6 SO 3 M.

10. A composition according to claim 1 wherein said composition is said aryl perfluoropolyether.

11. A composition according to claim 7 wherein said composition is said aryl perfluoropolyether.

12. A composition according to claim 8 wherein said composition is said aryl perfluoropolyether.

13. A composition according to claim 9 wherein said composition is said aryl perfluoropolyether.

14. A composition according to claim 1 or 4 , further comprising a halogenated oil which is a perfluoropolyether.

15. A composition according to claim 14 wherein said aryl perfluoropolyether is present in said composition from about 0.01 to about 99% by weight.

16. A composition according to claim 1 or 4 , further comprising a halogenated oil and a thickening agent, wherein said halogenated oil is a perfluoropolyether, a fluorosilicone, a polytrifluorochloroethylene, or combinations of two or more thereof; and said thickening agent is polytetrafluoroethylene, talc, silica, clay, boron nitride, metal soaps, titanium dioxide, polydimethylsiloxane, polyurea, polyurethane, or combinations of two or more thereof.

17. A composition according to claim 16 further comprising an additive wherein said additive is perfluoroalkyl surfactant, polyoxyperfluoroalkyl surfactant, oil or grease stabilizer, anticorrosive agent, anti-wear agent, or combinations of two or more thereof.

18. A composition according to claim 17 wherein said aryl perfluoropolyether is present in said composition from about 0.1 to about 90% and said thickening agent is present in said composition from about 0.01 to about 60%, both by weight.

19. A grease composition comprising, or produced by combining, a halogenated oil, an aryl perfluoropolyether and a thickening agent, wherein said halogenated oil is a perfluoropolyether, a fluorosilicone, polytrifluorochloroethylene, or combinations of two or more thereof; said aryl perfluoropolyether is the same as recited in claim 1 or 4 , and said thickening agent is polytetrafluoroethylene, talc, silica, clay, boron nitride, metal soaps, titanium dioxide, polydimethylsiloxane, polyurea, polyurethane, or combinations of two or more thereof.

20. A grease composition according to claim 19 further comprising an additive wherein said additive is perfluoroalkyl surfactant, polyoxyperfluoroalkyl surfactant, oil or grease stabilizer, anticorrosive agent, anti-wear agent, or combinations of two or more thereof.

21. A grease composition according to claim 20 wherein said aryl perfluoropolyether is present from about 0.1 to about 90% and said thickening agent is present from about 0.01 to about 50%, both by weight of said grease.

22. A composition comprising, or produced by combining, a perfluoropolyether, an aryl perfluoropolyether and a thickening agent, wherein said aryl perfluoropolyether is the same as recited in claim 5 ; and said thickening agent is polytetrafluoroethylene, talc, silica, day, boron nitride, metal soaps, titanium dioxide, polydimethylsiloxane, polyurea, polyurethane, or combinations of two or more thereof.