Steven L Fisher

US Patent:

6773547, Aug 10, 2004

Filed:

May 11, 2001

Appl. No.:

09/852786

Inventors:

V. S. Meenakshi Sundaram - Bur Ridge IL
Steven A. Fisher - Lyons IL
Sebastien Corbiel - Willowbrook IL
Derek Hornsey - Beconsfield, CA

Assignee:

American Air Liquide, Inc. - Fremont CA
Air Liquide Canada - Montreal

International Classification:

D21C 914

US Classification:

162 57, 162 65, 162 88

Abstract:

Provided is a process for bleaching pulp with ozone. The process involves preparing a slurry of cellulosic pulp having a consistency in fibers of from 1 up to 5 weight %. Such a low consistency slurry is then mixed with high partial pressure ozone under high shear conditions. The ozone is then maintained in contact with the cellulosic fibers to effect bleaching of the fibers. The present process offers the advantages of bleaching using a low consistency slurry, with the added advantages of employing ozone.

US Patent:

6793771, Sep 21, 2004

Filed:

Jun 16, 2003

Appl. No.:

10/463156

Inventors:

V. S. Meenakshi Sundaram - Bur Ridge IL
Derek Hornsey - Beaconsfield, CA
Sebastien Corbeil - Willowbrook IL
Steven A. Fisher - Lyons IL

Assignee:

American Air Liquide, Inc. - Fremont CA

International Classification:

D21C 914

US Classification:

162 57, 65 88

Abstract:

Provided is a process for bleaching pulp with ozone. The process involves preparing a slurry of cellulosic pulp having a consistency in fibers of from 1-5 weight %. Such a low consistency slurry is then mixed with ozone under high shear conditions. The ozone is then maintained in contact with the cellulosic fibers to effect bleaching of the fibers. The present process offers the advantages of bleaching using a low consistency slurry, with the added advantages of employing ozone.

US Patent:

7056419, Jun 6, 2006

Filed:

Sep 6, 2003

Appl. No.:

10/656857

Inventors:

V. S. Meenakshi Sundaram - Burr Ridge IL, US
Daniel Duarte - Clarendon Hills IL, US
Steven Fisher - Lyons IL, US

Assignee:

American Air Liquide, Inc. - Fremont CA

International Classification:

D21H 21/06
D21H 23/08

US Classification:

162158, 1621811, 1621812, 162183, 162198

Abstract:

Carbon dioxide may be used to adjust the electrical properties of papermaking compositions. Such papermaking compositions may contain a colloid phase, an aqueous phase, and optionally, pulp fibers. Examples of electrical properties whose values may be adjusted include zeta potential, electrical charge demand, conductivity, and streaming potential. The carbon dioxide may be introduced at many different points in a papermaking process, including calcium carbonate slurry feeds, pulp fiber slurries, diluted pulp fibers slurries, broke, and whitewater. When a value or range of values based upon an electrical property is predetermined, such as an optimal value or range, introduction of carbon dioxide may be used to adjust the value such that it is closer to the predetermined value.

US Patent:

7834207, Nov 16, 2010

Filed:

Jul 11, 2006

Appl. No.:

11/456804

Inventors:

Steven A. Fisher - Brookfield IL, US

Assignee:

American Air Liquide, Inc. - Fremont CA

International Classification:

C07C 409/44

US Classification:

562 1, 514557

Abstract:

Method and system for forming an anhydrous sterilant. In one embodiment, anhydrous peracetic acid is combined with carbon dioxide, wherein the carbon dioxide is in one of a liquid, solid, and supercritical state.

US Patent:

8637697, Jan 28, 2014

Filed:

Oct 12, 2010

Appl. No.:

12/902618

Inventors:

Steven A. Fisher - Brookfield IL, US

Assignee:

American Air Liquide, Inc. - Houston TX

International Classification:

C07C 409/26

US Classification:

562 2, 562 3

Abstract:

Method and system for forming an anhydrous sterilant. In one embodiment, anhydrous peracetic acid is combined with carbon dioxide, wherein the carbon dioxide is in one of a liquid, solid, and supercritical state.

US Patent:

20030006017, Jan 9, 2003

Filed:

Jul 24, 2002

Appl. No.:

10/201248

Inventors:

Derek Hornsey - Beaconsfield, CA
Sebastien Corbeil - Willowbrook IL, US
Steven Fisher - Lyons IL, US

International Classification:

D21C009/153
D21C009/14
D21C009/10
D21C007/00
D21C007/14

US Classification:

162/065000, 162/066000, 162/070000, 162/087000, 162/088000, 162/243000, 162/232000

Abstract:

Provided is a process for bleaching pulp with ozone. The process involves preparing a slurry of cellulosic pulp having a consistency in fibers of from 1-5 weight %. Such a low consistency slurry is then mixed with ozone under high shear conditions. The ozone is then maintained in contact with the cellulosic fibers to effect bleaching of the fibers. The present process offers the advantages of bleaching using a low consistency slurry, with the added advantages of employing ozone.

US Patent:

20030015223, Jan 23, 2003

Filed:

May 29, 2002

Appl. No.:

10/157536

Inventors:

Tracey Jacksier - Lisle IL, US
Steven Fisher - Lyons IL, US
Robert Benesch - Clarendon Hills IL, US
Bruce Talbert - Chicago IL, US

Assignee:

American Air Liquide, Inc. - Fremont CA

International Classification:

B08B009/08

US Classification:

134/022180

Abstract:

Methods of cleaning metal containers, and containers having internal metal linings are described. The methods comprise the steps of exposing the internal metallic surface to a composition comprising ozone, the internal metallic surface having thereon a residue, contacting the composition comprising ozone with the internal metallic surface for a time sufficient to either remove the residue, chemically modify the residue to form a modified residue that may be removed by other means, or deactivate the residue.

US Patent:

20030094252, May 22, 2003

Filed:

Oct 17, 2001

Appl. No.:

09/981029

Inventors:

Meenakshi Sundar - Burr Ridge IL, US
Steven Fisher - Lyons IL, US

Assignee:

American Air Liquide, Inc. - Fremont CA

International Classification:

D21H017/00
D21H017/18
D21H021/14

US Classification:

162/128000, 162/181100, 162/181200

Abstract:

Cellulosic products comprising cellulosic fibers and precipitated calcium carbonate prepared in-situ during papermaking are described. The precipitated calcium carbonate is deposited on the cellulosic fibers and is present in a variety of sizes, shapes and morphologies, and is present in the cellulosic products on all physical features of the cellulosic fibers. At least a portion of the precipitated calcium carbonate is present with the fiber based on interaction with one or more chemicals used in papermaking.