Daniel R Vitcak

6426327, Jul 30, 2002

Feb 14, 2001

09/783359

Richard M. Flynn - Mahtomedi MN
Dean S. Milbrath - Stillwater MN
John G. Owens - Woodbury MN
Daniel R. Vitcak - Cottage Grove MN
Hideto Yanome - Kanagawa, JP

3M Innovative Properties Company - Saint Paul MN

C11D 726

510411, 510410, 252364, 106311, 134 42

The invention provides azeotrope-like compositions consisting essentially of R OCH , where R is a branched or straight chain perfluoroalkyl group having 4 carbon atoms, and one or more organic solvent(s) selected from the group consisting of: straight chain, branched chain and cyclic alkanes containing 6 to 8 carbon atoms; cyclic and acyclic ethers containing 4 to 6 carbon atoms; ketones having 3 carbon atoms; chlorinated alkanes containing 1, 3 or 4 carbon atoms; chlorinated alkenes containing 2 carbon atoms, alcohols containing 1 to 4 carbon atoms, partially fluorinated alcohols containing 2 to 3 carbon atoms, 1-bromopropane, acetonitrile, HCFC 225ca (1,1,-dichloro-2,2,3,3,3 pentafluoropropane and HCFC-225cb (1,3-dichloro-1,1,2,2,3-pentafluoropropane).

6478979, Nov 12, 2002

Jul 19, 2000

09/619306

Paul E. Rivers - Minneapolis MN
Richard M. Minday - Stillwater MN
Fred E. Behr - Woodbury MN
Daniel R. Vitcak - Cottage Grove MN
Richard M. Flynn - Mahtomedi MN
Michael G. Costello - Afton MN
Michael J. Parent - Oakdale MN
John G. Owens - Woodbury MN
Zhongxing Zhang - Woodbury MN

3M Innovative Properties Company - St. Paul MN

A62D 100

252 2, 169 46, 169 47

Fire extinguishing compositions and methods for extinguishing, controlling, or preventing fires are described wherein the extinguishing agent is a fluorinated ketone having up to two hydrogen atoms, alone, or in admixture with a co-extinguishing agent selected from hydrofluorocarbons, hydrochlorofluorocarbons, perfluorocarbons, perfluoropolyethers, hydrofluoroethers, hydrofluoropolyethers, chlorofluorocarbons, bromofluorocarbons, bromochlorofluorocarbons, iodofluorocarbons, hydrobromofluorocarbons, and mixtures thereof.

6540930, Apr 1, 2003

Apr 24, 2001

09/841376

Susrut Kesari - St. Paul MN
Fred E. Behr - Woodbury MN
Michael G. Costello - Afton MN
Richard M. Flynn - Mahtomedi MN
Richard M. Minday - Stillwater MN
John G. Owens - Woodbury MN
Daniel R. Vitcak - Cottage Grove MN
Larry A. Zazzera - Edina MN

3M Innovative Properties Company - St. Paul MN

H01L 2100

216 67, 216 79, 134 11, 134 221

Methods of using reactive gases containing a perfluoroketone having 4 to 7 carbon atoms for removing unwanted deposits that build up in a vapor reactor, for etching dielectric and metallic materials in a vapor reactor, and for doping a material in a vapor reactor are described. The perfluoroketones perform as well as or better than the standard perfluorocarbons used in the semiconductor industry but have minimal impact on global warming.

6630075, Oct 7, 2003

Oct 11, 2002

10/269179

Fred E. Behr - Woodbury MN
Daniel R. Vitcak - Cottage Grove MN
Richard M. Flynn - Mahtomedi MN
Michael G. Costello - Afton MN
Michael J. Parent - Oakdale MN
Zhongxing Zhang - Woodbury MN

3M Innovative Properties Company - St. Paul MN

C07C 4904

25218311, 568338, 568340, 568342, 568385, 568410, 568419

Fire extinguishing compositions and methods for extinguishing, controlling, or preventing fires are described wherein the extinguishing agent is a fluorinated ketone having up to two hydrogen atoms, alone, or in admixture with a co-extinguishing agent selected from hydrofluorocarbons, hydrochlorofluorocarbons, perfluorocarbons, perfluoropolyethers, hydrofluoroethers, hydrofluoropolyethers, chlorofluorocarbons, bromofluorocarbons, bromochlorofluorocarbons, iodofluorocarbons, hydrobromofluorocarbons, and mixtures thereof.

6774270, Aug 10, 2004

Apr 1, 2003

10/404234

Zhongxing Zhang - Woodbury MN
Daniel R. Vitcak - Cottage Grove MN
Richard M. Flynn - Mahtomedi MN

3M Innovative Properties Company - Saint Paul MN

C07C 1700

570151, 570175, 570177, 570190, 570191, 570200, 570216, 570234, 570236, 564 15, 564248, 564281, 564444, 564445, 564463, 564497, 564509, 564510

A method of removing hexafluoropropylene dimers (âHFP dimersâ), dimer hydrides and other oligomers from a fluid is described. The method comprises heating the fluid to isomerize the HFP dimers to the thermodynamic isomer, and contacting the fluid with a tertiary amine (or salts thereof) to form a hexafluoropropylene dimerâtertiary amine adduct. The method may further comprise the step of separating the dimer adducts from the reaction mixture.

6923921, Aug 2, 2005

Dec 30, 2002

10/331816

Richard M. Flynn - Mahtomedi MN, US
Daniel R. Vitcak - Cottage Grove MN, US
Richard S. Buckanin - Woodbury MN, US
Cheryl L. S. Elsbernd - Woodbury MN, US

3M Innovative Properties Company - St. Paul MN

C09K003/00
C07C043/12
C07C059/135
C07C053/48
D06M013/165

25218215, 252 862, 568615, 570134, 570126, 562849, 562586, 560184

Described are fluorinated polyether compounds having a molecular weight range between 750 g/mol and 4000 g/mol where such polyether compounds are intermediates used in fluorinated compositions for treating various substrates.

8193393, Jun 5, 2012

Mar 26, 2010

12/732688

Richard M. Flynn - Mahtomedi MN, US
Michael G. Costello - Afton MN, US
Michael J. Bulinski - Houlton WI, US
Daniel R. Vitcak - Cottage Grove MN, US
Phillip E. Tuma - Faribault MN, US

3M Innovative Properties Company - St. Paul MN

C07C 49/173
C07C 43/00
C01M 107/34
C09K 5/04

568413, 568416, 568674, 568679, 508579, 508582, 252 67

Fluoroether diketones are provided that can be useful in apparatuses that includes a device and a mechanism for transferring heat. The provided fluoroether diketones are stable at temperatures above 175 C. , are environmentally friendly, and are economical to produce. The provided apparatuses can be useful for vapor phase soldering of electronic devices.

8193397, Jun 5, 2012

Dec 6, 2006

11/567643

Richard M. Flynn - Mahtomedi MN, US
Michael G. Costello - Afton MN, US
Daniel R. Vitcak - Cottage Grove MN, US

3M Innovative Properties Company - St. Paul MN

C07C 21/18
C07C 19/08
F24D 1/00
C08J 9/00
C08J 9/12
B26F 3/00
C08F 2/00

570142, 521 82, 237 81, 83177, 526206

A hydrofluoroether compound comprises two terminal, independently fluoroalkyl or perfluoroalkyl groups and an intervening oxytetrafluoroethylidene moiety (—OCF(CF)—) bonded through its central carbon atom to an alkoxy- or fluoroalkoxy-substituted fluoromethylene moiety (—CF(OR)—), each of the terminal groups optionally comprising at least one catenated heteroatom.