Compositions of 1,1,1,2,2,3,5,5,5-nonafluoro-4-trifluoromethylpentane and use thereof for cleaning solid surfaces

Claim 2

A cleaning composition consisting essentially of (i) between 5 and 99 percent by weight 1,1,1,2,2,3,5,5,5-nonafluoro-4-trifluoromethylpentane and (ii) at least about 1 percent by weight of at least one solvent selected from the group consisting of alcohols containing from 1 to 4 carbon atoms, esters containing from 3 to 6 carbon atoms, ethers containing from 2 to 6 carbon atoms, ketones containing from 3 to 6 carbon atoms, halogenated hydrocarbons containing from 1 to 4 carbon atoms wherein the halogen is chlorine or both chlorine and fluorine, acetonitrile, and nitromethane.

Claim 3

A composition according to claim 1 which is a mixture of 1,1,1,2,2,3,5,5,5-nonafluoro-4-trifluoromethylpentane at least one solvent selected from the group consisting of methanol, ethanol, isopropanol, tetrahydrofuran, acetone, methylene chloride, 1,1,2-trichloro-1,2,2-trifluoroethane, dichlorodifluoroethane, trichloroethene, trans-1,2-dichloroethylene, acetonitrile, and nitromethane.

Claim 4

The composition of claim 1 in which no component contains chlorine.

Claim 5

The composition of claim 3 which is a mixture of 1,1,1,2,2,3,5,5,5-nonafluoro-4-trifluoromethylpentane and solvent selected from the group consisting of methanol, ethanol, isopropanol, acetone, nitromethane, and acetonitrile.

Claim 6

The composition of claim 1 which is a mixture of 1,1,1,2,2,3,5,5,5-nonafluoro-4-trifluoromethylpentane solvent selected from the group consisting of methanol, ethanol, isopropanol, trans-1,2-dichloroethylene, dichloromethane, trichloroethene, acetonitrile, nitromethane and acetone.

Claim 7

A composition comprising from about 87 to 95 weight percent 1,1,1,2,2,3,5,5,5-nonafluoro-4-trifluoromethylpentane and from about 5 to 13 weight percent methanol.

Claim 8

A composition comprising from about 87 to 95 weight percent 1,1,1,2,2,3,5,5,5-nonafluoro-4-trifluoromethylpentane and from about 5 to 13 weight percent methanol.

Claim 9

The like composition of claim 6 consisting essentially of about 91 weight percent 1,1,1,2,2,3,5,5,5-nonafluoro-4-trifluoromethylpentane and about 9 weight percent methanol.

Claim 10

The composition of claim 6 consisting essentially of an azeotrope-like mixture of from about 87 to 95 weight percent 1,1,1,2,2,3,5,5,5-nonafluoro-4-trifluoromethylpentane and from about 5 to 13 weight percent methanol wherein the composition has a boiling point of about 53° C. at substantially atmospheric pressure.

Claim 11

A composition comprising from about 89 to 97 weight percent 1,1,1,2,2,3,5,5,5-nonafluoro-4-trifluoromethylpentane and from about 3 to 11 weight percent ethanol.

Claim 12

A composition comprising from about 89 to 97 weight percent 1,1,1,2,2,3,5,5,5-nonafluoro-4-trifluoromethylpentane and from about 3 to 11 weight percent ethanol.

Claim 13

The composition of claim 9 consisting essentially of about 93 weight percent 1,1,1,2,2,3,5,5,5-nonafluoro-4-trifluoromethylpentane and about 7 weight percent ethanol.

Claim 14

The composition of claim 9 consisting essentially of an azeotrope-like mixture of from about 89 to 97 weight percent 1,1,1,2,2,3,5,5,5-nonafluoro-4-trifluoromethylpentane and from about 3 to 11 weight percent ethanol wherein the composition has a boiling point of about 59° C. at substantially atmospheric pressure.

Claim 15

A composition comprising from about 88 to 96 weight percent 1,1,1,2,2,3,5,5,5-nonafluoro-4-trifluoromethylpentane, and from about 4 to 12 weight percent isopropanol.

Claim 16

A composition comprising from about 88 to 96 weight percent 1,1,1,2,2,3,5,5,5-nonafluoro-4-trifluoromethylpentane, and from about 4 to 12 weight percent isopropanol.

Claim 17

The composition of claim 12 consisting essentially, of about 92 weight percent 1,1,1,2,2,3,5,5,5-nonafluoro-4-trifluoromethylpentane and about 8 weight percent isopropanol.

Claim 18

The composition of claim 12, consisting essentially of an azeotrope-like mixture of from about 88 to 96 weight percent 1,1,1,2,2,3,5,5,5-nonafluoro-4-trifluoromethylpentane and from about 4 to 12 weight percent isopropanol wherein the composition has a boiling point of about 62° C. at substantially atmospheric pressure.

Claim 19

A composition comprising from about 40 to 48 weight percent 1,1,1,2,2,3,5,5,5-nonafluoro-4-trifluoromethylpentane and from about 52 to 60 weight percent trans-1,2-dichloroethylene.

Claim 20

A composition comprising from about 40 to 48 weight percent 1,1,1,2,2,3,5,5,5-nonafluoro-4-trifluoromethylpentane and from about 52 to 60 weight percent trans-1,2-dichloroethylene.

Claim 21

The composition of claim 15 consisting essentially of about 44 weight percent 1,1,1,2,2,3,5,5,5-nonafluoro-4-trifluoromethylpentane and about 56 weight percent trans-1,2-dichloroethylene.

Claim 22

The composition of claim 15, consisting essentially of an azeotrope-like mixture of from about 40 to 48 weight percent 1,1,1,2,2,3,5,5,5-nonafluoro-4-trifluoromethylpentane and from about 52 to 60 weight percent trans-1,2-dichloroethylene wherein, the composition has a boiling point of about 42° C. at substantially atmospheric pressure.

Claim 23

A composition comprising from about 45 to 53 weight percent 1,1,1,2,2,3,5,5,5-nonafluoro-4-trifluoromethylpentane and from about 47 to 55 weight percent dichloromethane.

Claim 24

A composition comprising from about 45 to 53 weight percent 1,1,1,2,2,3,5,5,5-nonafluoro-4-trifluoromethylpentane and from about 47 to 55 weight percent dichloromethane.

Claim 25

The composition of claim 18 consisting essentially at about 49 weight percent 1,1,1,2,2,3,5,5,5-nonafluoro-4-trifluoromethylpentane and about 51 weight percent dichloromethane.

Claim 26

The composition of claim 18, consisting essentially of an azeotrope-like mixture of from about 45 to 53 weight percent 1,1,1,2,2,3,5,5,5-nonafluoro-4-trifluoromethylpentane and from about 47 to 55 weight percent dichloromethane wherein the composition has a boiling point of about 35° C. at substantially atmospheric pressure.

Claim 27

A composition comprising from about 91 to 99 weight percent 1,1,1,2,2,3,5,5,5-nonafluoro-4-trifluoromethylpentane and from about 1 to 9 weight percent trichloroethene.

Claim 28

A composition comprising from about 91 to 99 weight percent 1,1,1,2,2,3,5,5,5-nonafluoro-4-trifluoromethylpentane and from about 1 to 9 weight percent trichloroethene.

Claim 29

The composition of claim 21 consisting essentially of about 95 weight percent 1,1,1,2,2,3,5,5,5-nonafluoro-4-trifluoromethylpentane and about 5 weight percent trichloroethene.

Claim 30

The composition of claim 21, consisting essentially of an azeotrope-like mixture of from about 91 to 99 weight percent 1,1,1,2,2,3,5,5,5-nonafluoro-4-trifluoromethylpentane and from about 1 to 9 weight percent trichloroethene wherein the composition has a boiling point of about 61° C. at substantially atmospheric pressure.

Claim 31

A composition comprising from about 93 to 99.9 weight percent 1,1,1,2,2,3,5,5,5-nonafluoro-4-trifluoromethylpentane and from about 0.1 to 7 weight percent acetonitrile.

Claim 32

A composition comprising from about 93 to 99.9 weight percent 1,1,1,2,2,3,5,5,5-nonafluoro-4-trifluoromethylpentane and from about 0.1 to 7 weight percent acetonitrile.

Claim 33

The composition of claim 24 consisting essentially of about 97 weight percent 1,1,1,2,2,3,5,5,5-nonafluoro-4-trifluoromethylpentane and about 3 weight percent acetonitrile.

Claim 34

The composition of claim 24, consisting essentially of an azeotrope-like mixture of from about 93 to 99.9 weight percent 1,1,1,2,2,3,5,5,5-nonafluoro-4-trifluoromethylpentane and from about 0.1 to 7 weight percent acetonitrile wherein the composition has a boiling point of about 66° C. at substantially atmospheric pressure.

Claim 35

A composition comprising from about 95 to 99.9 weight percent 1,1,1,2,2,3,5,5,5-nonafluoro-4-trifluoromethylpentane and from about 0.1 to 5 weight percent nitromethane.

Claim 36

A composition comprising from about 95 to 99.9 weight percent 1,1,1,2,2,3,5,5,5-nonafluoro-4-trifluoromethylpentane and from about 0.1 to 5 weight percent nitromethane.

Claim 37

The composition of claim 27 consisting essentially of about 99 weight percent 1,1,1,2,2,3,5,5,5-nonafluoro-4-trifluoromethylpentane and about 1 weight percent nitromethane.

Claim 38

The composition of claim 29, consisting essentially of an azeotrope-like mixture of from about 95 to 99.9 weight percent 1,1,1,2,2,3,5,5,5-nonafluoro-4-trifluoromethylpentane and from about 0.1 to 5 weight percent nitromethane wherein the composition has a boiling point of about 67° C. at substantially atmospheric pressure.

Claim 39

A composition comprising from about 75 to 83 weight percent 1,1,1,2,2,3,5,5,5-nonafluoro-4-trifluoromethylpentane, from about 8 to 16 weight percent acetone, and from about 5 to 13 weight percent ethanol.

Claim 40

A composition comprising from about 75 to 83 weight percent 1,1,1,2,2,3,5,5,5-nonafluoro-4-trifluoromethylpentane, from about 8 to 16 weight percent acetone, and from about 5 to 13 weight percent ethanol.

Claim 41

The composition of claim 30 consisting essentially of about 79 weight percent 1,1,1,2,2,3,5,5,5-nonafluoro-4-trifluoromethylpentane, about 12 weight percent acetone, and about 9 weight percent ethanol.

Claim 42

The composition of claim 30, consisting essentially of an azeotrope-like mixture of from about 75 to 83 weight percent 1,1,1,2,2,3,5,5,5-nonafluoro-4-trifluoromethylpentane and from about 8 to 16 weight percent acetone, and from about 5 to 13 weight percent ethanol wherein the composition has a boiling point of about 61° C. at substantially atmospheric pressure.

Claim 43

A process for cleaning a solid surface which comprises treating said surface with a composition comprising from about 5 to 99 weight percent of 1,1,1,2,2,3,5,5,5-nonafluoro-4-trifluoromethylpentane and at least about 1 percent by weight of at least one solvent selected from the group consisting of alcohols containing 1 to 4 carbon atoms, esters containing from 3 to 6 carbon atoms, ethers containing from 2 to 6 carbon atoms, ketones containing from 3 to 6 carbon atoms, halogenated hydrocarbons containing from 1 to 4 carbon atoms wherein the halogen is chlorine or both chlorine and fluorine, acetonitrile and nitromethane.

Claim 44

A process for cleaning a solid surface which comprises treating said surface with a composition comprising from about 5 to 99 weight percent of 1,1,1,2,2,3,5,5,5-nonafluoro-4-trifluoromethylpentane and at least about 1 percent by weight of at least one solvent selected from the group consisting of alcohols containing 1 to 4 carbon atoms, esters containing from 3 to 6 carbon atoms, ethers containing from 2 to 6 carbon atoms, ketones containing from 3 to 6 carbon atoms, halogenated hydrocarbons containing from 1 to 4 carbon atoms wherein the halogen is chlorine or both chlorine and fluorine, acetonitrile and nitromethane.

Claim 45

The process of claim 33, wherein said surface is treated with a mixture in which no component contains chlorine.

Claim 46

The process of claim 33, wherein the solid surface is a printed circuit board contaminated with flux and flux residues.

Claim 47

The process of claim 33 which comprises treating said surface either with a composition comprising from about 87 to 95 weight percent 1,1,1,2,2,3,5,5,5-nonafluoro-4-trifluoromethylpentane and from about 5 to 13 weight percent methanol, or with an azeotrope or azeotrope-like composition comprising from about 89 to 97 weight percent 1,1,1,2,2,3,5,5,5-nonafluoro-4-trifluoromethylpentane and from about 3 to 11 weight percent ethanol.

Claim 48

The process of claim 33, wherein said solid surface is treated with a composition consisting essentially of from about 87 to 95 weight percent 1,1,1,2,2,3,5,5,5-nonafluoro-4-trifluoromethylpentane and from about 5 to 13 weight percent methanol, consisting essentially of from about 89 to 97 weight percent 1,1,1,2,2,3,5,5,5-nonafluoro-4-nonafluoro-4-trifluoromethylpentane and from about 3 to 11 weight percent ethanol, consisting essentially of from about 88 to 96 weight percent 1,1,1,2,2,3,5,5,5-nonafluoro-4-trifluoromethylpentane and from about 4 to 12 weight percent isopropanol, consisting essentially of from about 40 to 48 weight percent 1,1,1,2,2,3,5,5,5-nonafluoro-4-trifluoromethylpentane and from about 52 to 60 weight percent trans-1,2-dichloroethylene, consisting essentially of from about 45 to 53 weight percent 1,1,1,2,2,3,5,5,5-nonafluoro-4-trifluoromethylpentane and from about 47 to 55 weight percent dichloromethane, consisting essentially of from about 91 to 99 weight percent 1,1,1,2,2,3,5,5,5-nonafluoro-4-trifluoromethylpentane and from about 1 to 9 weight percent trichloroethene, comprising from about 93 to 99.9 weight percent 1,1,1,2,2,3,5,5,5-nonafluoro-4-trifluoromethylpentane and from about 0.1 to 7 weight percent acetonitrile, comprising from about 95 to 99.9 weight percent 1,1,1,2,2,3,5,5,5-nonafluoro-4-trifluoromethylpentane and from about 0.1 to 5 weight percent nitromethane, or comprising from about 75 to 83 weight percent 1,1,1,2,2,3,5,5,5-nonafluoro-4-trifluoromethylpentane, from about 8 to 16 weight percent acetone and from about 5 to 13 weight percent ethanol.