Patricia M Savu

6030547, Feb 29, 2000

Dec 24, 1997

8/998400

Masakazu Hasegawa - Hachioji, JP
Michael P. Keyes - Minneapolis MN
Marc D. Radcliffe - Newport MN
Patricia M. Savu - Maplewood MN
Daniel C. Snustad - Woodbury MN
Terence D. Spawn - West Lakeland Township MN

3M Innovative Properties Company - St. Paul MN

C09K 1934
C09K 1932
C07C 2513
C07D23902
C07D31912
C07D26302

25229961

Fluorine-containing, chiral liquid crystal compounds comprise (a) a chiral fluorochemical terminal portion comprising (i) at least one chiral center, which can optionally be heteroatom-substituted; (ii) a terminal fluoroalkyl, fluoroether, perfluoroalkyl, or perfluoroether group; and (iii) an alkylene or fluoroalkylene group optionally containing at least one caternary ether oxygen atom; (b) a chiral or achiral terminal portion consisting of a hydrocarbon or hydrocarbon ether group, and, when chiral, comprising at least one chiral center, which can optionally be heteroatom-substituted; and (c) a central core connecting the terminal portions; the alkylene or fluoroalkylene group of the chiral fluorochemical terminal portion having at least 3 in-chain atoms and being located between the chiral center of the chiral fluorochemical terminal portion and the central core. The compounds have smectic mesophases or latent smectic mesophases and are useful, for example, in liquid crystal display devices.

6545109, Apr 8, 2003

Jun 29, 2001

09/896319

William M. Lamanna - Stillwater MN
Patricia M. Savu - Maplewood MN
Michael J. Sierakowski - Stillwater MN
Lian S. Tan - Woodbury MN

3M Innovative Properties Company - St. Paul MN

C08F 224

526220, 526217, 526222, 526247, 526250, 526254

The present invention provides imide salts as emulsifiers for the polymerization of fluoroolefins.

6555510, Apr 29, 2003

May 10, 2001

09/853065

William M. Lamanna - Stillwater MN
Patricia M. Savu - Maplewood MN
Michael J. Parent - Oakdale MN
Lawrence A. Zazzera - Edina MN

3M Innovative Properties Company - St. Paul MN

C09K 1308

510175, 510176, 134 13, 516 79, 516 89, 516 93, 516198, 516201, 252 791, 252 793, 25228629, 106 123, 51308

The present invention provides for the use of bis(perfluoroalkanesulfonyl)imide and its salts as surfactants or additives applications having an extreme environment.

6664354, Dec 16, 2003

Dec 5, 2002

10/310300

Patricia M. Savu - Maplewood MN
Sandra A. Etienne - St. Paul MN

3M Innovative Properties Company - St. Paul MN

C08F21418

526243

Described are fluorochemical surfactants derived from nonafluorobutanesulfonyl fluoride that contain polyalkyleneoxy side chains and may be copolymerized with acrylic acid or methacrylic acid to form polyacrylates or polymethacrylates. The surfactants surprisingly lower the surface tension of water and other liquids in the same or similar low values achieved by premier surfactants such as those derived from perfluorooctane sulfonyl fluoride.

6852781, Feb 8, 2005

Oct 4, 2002

10/264591

Patricia M. Savu - Maplewood MN, US
Sandra A. Etienne - St. Paul MN, US

3M Innovative Properties Company - St. Paul MN

C08K005/43

524168, 524544, 526243

Described are fluorochemical surfactants derived from nonafluorobutanesulfonyl fluoride that contain polyalkyleneoxy side chains and may be copolymerized with acrylic acid or methacrylic acid to form polyacrylates or polymethacrylates. The surfactants surprisingly lower the surface tension of water and other liquids in the same or similar low values achieved by premier surfactants such as those derived from perfluorooctane sulfonyl fluoride.

6890452, May 10, 2005

Nov 8, 2002

10/290763

Michael J. Parent - Oakdale MN, US
Patricia M. Savu - Maplewood MN, US
Richard M. Flynn - Mahtomedi MN, US
Zhongxing Zhang - Woodbury MN, US
William M. Lamanna - Stillwater MN, US
George G. I. Moore - Afton MN, US

3M Innovative Properties Company - St. Paul MN

C09K013/00

252 791, 252 793

Novel aqueous, acid etch solutions comprising a fluorinated surfactant are provided. The etch solutions are used with a wide variety of substrates, for example, in the etching of silicon oxide-containing substrates.

6894105, May 17, 2005

Jul 26, 2002

10/205764

Michael J. Parent - Oakdale MN, US
Patricia M. Savu - Maplewood MN, US
Harry E. Johnson - Hudson WI, US
David B. Olson - Marine on Saint Croix MN, US

3M Innovatives Properties Company - St. Paul MN

C08L027/12
B32B027/00

524520, 524544, 428421, 428422, 526256, 526259

Dyed fluoropolymers that are useful, for example, as conformal coatings comprise the reaction product of one or more fluorochemical (meth)acrylate monomers and one or more (meth)acrylate functional dyes. Coating compositions comprise the dyed fluoropolymer and articles are coated with the coating composition.

7030067, Apr 18, 2006

Feb 24, 2003

10/373273

William M. Lamanna - Stillwater MN, US
Patricia M. Savu - Maplewood MN, US
Michael J. Parent - Oakdale MN, US
Lawrence A. Zazzera - Edina MN, US

3M Innovative Properties Company - St. Paul MN

C10M 135/08
C10M 105/74

508568, 252 785

The present invention provides for the use of bis(perfluoroalkanesulfonyl)imide and its salts as surfactants or additives applications having an extreme environment.