Richard H Stern

US Patent:

6528544, Mar 4, 2003

Filed:

May 15, 2001

Appl. No.:

09/858258

Inventors:

Richard M. Stern - Woodbury MN
Pavel L. Blagev - Woodbury MN
Joan E. Manzara - St. Paul MN

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

B01F 1700

US Classification:

516 10, 252 3, 252 805, 169 45, 169 46

Abstract:

Described are compositions and methods useful for preparing foam compositions. The compositions and method relate to the production of a foam from a composition containing non-hydrated thickener.

US Patent:

6586522, Jul 1, 2003

Filed:

Jun 12, 2000

Appl. No.:

09/592105

Inventors:

Chetan P. Jariwala - Woodbury MN
Thomas P. Klun - Lakeland MN
Jeffrey G. Linert - Woodbury MN
Richard M. Stern - Woodbury MN

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

C08J 300

US Classification:

524539, 523200

Abstract:

A water- and oil-repellent composition comprises (a) a repellency-imparting, fluorochemical composition comprising at least one fluorine-containing aromatic ester oligomer comprising (1) at least two repeat units derived or derivable from the reaction of at least one dicarboxylic acid (or a derivative thereof) and at least one polyol, with the proviso that either the dicarboxylic acid (or derivative) or the polyol (or both) is aromatic or heteroaromatic, and (2) fluorochemical endgroups derived or derivable from the reaction of (i) the dicarboxylic acid (or derivative) and at least one fluorine-containing monoalcohol, or (ii) the polyol and at least one fluorine-containing monocarboxylic acid; and (b) a treatable substrate; with the proviso that, when the treatable substrate comprises a mixture of at least two polymers, the mixture is non-stratifying.

US Patent:

6960642, Nov 1, 2005

Filed:

Jan 9, 2003

Appl. No.:

10/339418

Inventors:

Chetan P. Jariwala - Woodbury MN, US
Thomas P. Klun - Lakeland MN, US
Jeffrey G. Linert - Woodbury MN, US
Richard M. Stern - Woodbury MN, US

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

C08G063/68
C08G069/00
C08G069/44
C08G075/00
C08G063/02

US Classification:

528290, 524602, 528272

Abstract:

Fiber, fabric, film, molded or blown article comprising a water- and oil-repellent composition comprising a melt blend of components (a) and (b) in which:.

US Patent:

44724055, Sep 18, 1984

Filed:

Nov 12, 1982

Appl. No.:

6/441245

Inventors:

Richard M. Stern - Cottage Grove MN

Assignee:

Riker Laboratories, Inc. - St. Paul MN

International Classification:

A01N 4342
A61K 3147
C07D45504

US Classification:

424258

Abstract:

The compound 6,7-dihydro-5,8-dimethyl-9-fluoro-1-oxo-1H,5H-benzo[ij]quinolizine-2-carbo xylic acid is disclosed as a potent antimicrobial agent with a broad spectrum of activity. Esters, acyl chlorides, alkylaminoalkyl ester salts and pharmaceutically acceptable carboxylate salts of the acid are also disclosed. Methods of using these compounds, pharmaceutical compositions comprising these compounds and synthetic intermediates for preparing these compounds are described.

US Patent:

46067370, Aug 19, 1986

Filed:

Jun 26, 1984

Appl. No.:

6/625028

Inventors:

Richard M. Stern - Woodbury MN

Assignee:

Minnesota Mining and Manufacturing Company - Saint Paul MN

International Classification:

C07C12506
C10M10576

US Classification:

81156

Abstract:

Fluorochemical allophanates containing one or more monovalent fluoroaliphatic radicals having at least three fully fluorinated terminal carbon atoms and one or more allophanate moieties, the radicals and moieties bonded together by hetero atom-containing or organic linking groups are provided. These fluorochemical allophanates are useful in the form of aqueous dispersions or emulsions or organic solutions in the treatment of fibrous substrates, such as textile fibers, to impart oil and water repellency.

US Patent:

41286596, Dec 5, 1978

Filed:

Dec 19, 1977

Appl. No.:

5/861893

Inventors:

Robert A. Scherrer - White Bear Lake MN
Richard M. Stern - Cottage Grove MN

Assignee:

Riker Laboratories, Inc. - Northridge CA

International Classification:

C07D30792
C07D30783
A61K 3134

US Classification:

424285

Abstract:

2-Nitrobenzofurans in which the furan ring is either fused to or substituted by a fused bicyclic system, which are active as antimicrobial agents, processes for their use and intermediates therefor are described.

US Patent:

42605474, Apr 7, 1981

Filed:

Jan 21, 1980

Appl. No.:

6/113640

Inventors:

Robert A. Scherrer - White Bear Lake MN
Richard M. Stern - Cottage Grove MN

Assignee:

Riker Laboratories, Inc. - Northridge CA

International Classification:

C07D30778

US Classification:

26034671

Abstract:

2-Nitrobenzofurans in which the furan ring is either fused to or substituted by a fused bicyclic system, which are active as antimicrobial agents, processes for their use and intermediates therefor are described.

US Patent:

51243636, Jun 23, 1992

Filed:

Mar 26, 1991

Appl. No.:

7/675403

Inventors:

Richard M. Stern - Woodbury MN

Assignee:

Minnesota Mining and Manufacturing Company - St. Paul MN

International Classification:

C08J 906

US Classification:

521 50

Abstract:

A method of treating hazardous material or other substrate with an aqueous air foam, comprising the steps of (1) preparing an aqueous solution or dispersion comprising (a) water-soluble polyhydroxy polymer having a plurality of hydrogen-bondable 1,2- and/or 1,3-diol structures capable of complexation with the borate anion, B(OH). sub. 4. sup. -, (b) polyvalent ionic complexing agent, such as borax, which crosslinks said polymer by hydrogen-bonding complexation, (c) foaming agent to impart persistence to the fluid air foam generated upon aeration of said solution or dispersion, (d) a pH modifier, such as sodium hydroxide or acetic acid, to impart an appropriate pH to the solution or dispersion necessary for time-controlled formation of gelled or viscous air foam from the fluid air foam, and (e) water as the major component of said aqueous solution or dispersion by weight; (2) aerating said aqueous solution or air-entrained, low density foam (or air foam) which is gelable or becomes viscous, generally at least 5 seconds after its formation; and (3) spraying, contacting or otherwise applying said fluid, aqueous air foam to exposed surface of said hazardous material or other substrate.