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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 8975301 B1

PDFFull Text
Date of Patent:
Mar. 10, 2015

Filed:

Dec. 12, 2005

Ultrastable particle-stabilized foams and emulsions

Applicants:

Ludwig J. Gauckler, Zurich, CH;

Andre R. Studart, Zurich, CH;

Elena Tervoort, Zurich, CH;

Urs T. Gonzenbach, Zurich, CH;

Ilke Akartuna, Zurich, CH;

Inventors:

Ludwig J. Gauckler, Zurich, CH;

Andre R. Studart, Zurich, CH;

Elena Tervoort, Zurich, CH;

Urs T. Gonzenbach, Zurich, CH;

Ilke Akartuna, Zurich, CH;

Assignee:

ETH Zurich, Zurich, CH;

Attorney:

Marshall, Gerstein & Borun LLP

Primary Examiner:

Melvin C Mayes

Assistant Examiner:

Stefanie Cohen

Int. Cl.
CPC ...
B01F 3/04 (2006.01); B01J 13/02 (2006.01); A23L 1/00 (2006.01); A61L 27/10 (2006.01); A61L 27/56 (2006.01); A62D 1/02 (2006.01); B82Y 30/00 (2011.01); C01B 13/14 (2006.01); C01B 21/06 (2006.01); C01F 7/02 (2006.01); C01F 17/00 (2006.01); C04B 35/626 (2006.01); C04B 35/632 (2006.01); C04B 38/10 (2006.01); C04B 103/48 (2006.01); C04B 111/00 (2006.01);
U.S. Cl.
CPC ...
B01J 13/02 (2013.01); A23L 1/0097 (2013.01); A61L 27/105 (2013.01); A61L 27/56 (2013.01); A62D 1/0071 (2013.01); B82Y 30/00 (2013.01); C01B 13/145 (2013.01); C01B 21/06 (2013.01); C01F 7/023 (2013.01); C01F 7/026 (2013.01); C01F 17/0043 (2013.01); C04B 35/6263 (2013.01); C04B 35/632 (2013.01); C04B 38/106 (2013.01); C01P 2004/02 (2013.01); C01P 2004/10 (2013.01); C01P 2004/64 (2013.01); C01P 2006/12 (2013.01); C01P 2006/22 (2013.01); C04B 2103/48 (2013.01); C04B 2111/00793 (2013.01); C04B 2111/0081 (2013.01); C04B 2235/3212 (2013.01); C04B 2235/3217 (2013.01); C04B 2235/3224 (2013.01); C04B 2235/3229 (2013.01); C04B 2235/3244 (2013.01); C04B 2235/3286 (2013.01); C04B 2235/3418 (2013.01); C04B 2235/441 (2013.01); C04B 2235/5409 (2013.01); C04B 2235/5445 (2013.01); C04B 2235/77 (2013.01); C04B 2235/96 (2013.01); C04B 2235/9607 (2013.01);
Abstract

Described is a method to prepare wet foams exhibiting long-term stability wherein colloidal particles are used to stabilize the gas-liquid interface, said particles being initially inherently partially lyophobic particles or partially lyophobized particles having mean particle sizes from 1 nm to 20 μm. In one aspect, the partially lyophobized particles are prepared in-situ by treating initially hydrophilic particles with amphiphilic molecules of specific solubility in the liquid phase of the suspension.

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