Perfluoroalkyl haloalkyl ethers and compositions and applications thereof

• US 6,743,262 B1
• Filed: 01/08/1999
• Issued: 06/01/2004
• Est. Priority Date: 09/15/1997
• Status: Expired due to Fees

• Current Assignee: 3M Innovative Properties Company (3M Company)
• Original Assignee: 3M Innovative Properties Company (3M Company)
• Inventors: Behr, Frederick E., Flynn, Richard M.
• Primary Examiner(s): Metzmaier, Daniel S.
• Application Number:
  US09/227,241
• Time in Patent Office: 1,971 Days
• Field of Search: 510/175, 510/177, 510/285, 510/411, 510/289, 252/194, 252/364, 508/582, 508/579, 72/41, 71/41, 814/2, 134/2, 134/42
• US Class Current: 8/142
• CPC Class Codes: C07C 43/123 both carbon chains are substituted by halogen atoms
• CPC Class Codes: C07C 43/126 having more than one ether bond
• CPC Class Codes: C07C 43/192 containing halogen
• CPC Class Codes: C07D 207/10 with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
• CPC Class Codes: C07D 211/38 Halogen atoms or nitro radicals
• CPC Class Codes: C11D 3/245 containing fluorine

Abstract

Described are compositions comprising perfluoroalkyl haloalkyl ethers and, optionally, surfactant; uses for perfluoroalkyl haloalkyl ether compounds and compositions thereof, optionally comprising surfactant; and perfluoroalkyl haloalkyl ethers.

Claims

1. A process for removing contaminants from a substrate, the process comprising the step of contacting the substrate with a composition comprising a perfluoroalkyl haloalkyl ether of the formula:

2. The process of claim 1, wherein the composition further comprises a surfactant.

3. The process of claim 2 wherein the surfactant comprises a non-ionic surfactant.

4. The process of claim 3 wherein said surfactant is selected from the group consisting of ethoxylated alcohols, ethoxylated alkylphenols, ethoxylated fatty acids, glycerol esters, ethoxylated fluoroalcohols, and fluorinated sulfonamides or carboxamides.

5. The process of claim 2 wherein said contaminant is water.

6. The process of claim 1, wherein the perfluoroalkyl haloalkyl ether is chosen from the group consisting of:

7. The process of claim 1 wherein said perfluoroalkyl haloalkyl ether has a boiling point of 25°

C. to 125°

C.

8. The process of claim 1 wherein said substrate is selected from the group consisting of metals, ceramics, glass, polycarbonate polystyrene, and acrylonitrile-butadiene-styrene copolymer.

9. The process of claim 1 wherein said substrate comprises natural fiber, synthetic fibers and fabrics thereof.