Rachel D Sullivan

US Patent:

20120107499, May 3, 2012

Filed:

Jun 24, 2011

Appl. No.:

13/168715

Inventors:

Daniel H. Traynor - Sarasota FL, US
Hao Xu - Canton MI, US
Henry G. Traynor - Sarasota FL, US
John Carson - Union City NJ, US
Martin S. Flacks - Danville CA, US
Rachel Sullivan - Addison TX, US

International Classification:

B29B 9/12

US Classification:

42721331

Abstract:

This invention relates to a method for forming hollow silica-based particles suitable for containing one or more active ingredients or for containing other smaller particles which may include one or more active ingredients. The method comprises preparing an emulsion including a continuous phase that is polar or non-polar and a dispersed phase comprising droplets including (i) a polar active ingredient when the continuous phase is non-polar or (ii) a non-polar active ingredient when the continuous phase is polar; and adding a silica precursor to the emulsion such that the silica precursor can be emulsion templated on the droplets to form hollow silica-based particles. The silica precursor has the general formula (I): R—Si—(OR), wherein Ris selected from substituted and unsubstituted alkyl, substituted and unsubstituted aryl, alcohols, amines, amides, aldehydes, acids, esters, and functional groups having an unsaturated carbon-carbon bond, Ris an alkyl group, x+y=4, and y=1, 2 or 3. The —ORgroup is a hydrolyzable organic group that exhibits an ability to form a silicon-oxygen bond chain as a result of hydrolysis and condensation.

US Patent:

20120104639, May 3, 2012

Filed:

Jun 24, 2011

Appl. No.:

13/168730

Inventors:

Daniel H. Traynor - Sarasota FL, US
Hao Xu - Canton MI, US
Henry G. Traynor - Sarasota FL, US
John Carson - Union City NJ, US
Martin S. Flacks - Danville CA, US
Rachel Sullivan - Addison TX, US

International Classification:

B01J 13/22
B01J 13/02

US Classification:

264 432, 264 41

Abstract:

This invention relates to a method for forming hollow silica-based particles suitable for containing one or more active ingredients or for containing other smaller particles which may include one or more active ingredients. In the method, an emulsion is prepared including a continuous phase that is polar or non-polar, and a dispersed phase comprising droplets including (i) a polar active ingredient when the continuous phase is non-polar or (ii) a non-polar active ingredient when the continuous phase is polar; and a prehydrolyzed silica precursor is added to the emulsion such that the silica precursor can be emulsion templated on the droplets to form hollow silica-based particles.

US Patent:

20120104638, May 3, 2012

Filed:

Jun 24, 2011

Appl. No.:

13/168703

Inventors:

Daniel H. Traynor - Sarasota FL, US
Hao Xu - Canton MI, US
Henry G. Traynor - Sarasota FL, US
John Carson - Union City NJ, US
Martin S. Flacks - Danville CA, US
Rachel Sullivan - Addison TX, US

International Classification:

B01J 13/14

US Classification:

264 432

Abstract:

This invention relates to a method for forming hollow silica-based particles suitable for containing one or more active ingredients or for containing other smaller particles which may include one or more active ingredients. The emulsion templated particles can be formed from two or more silanes. The emulsion templated particles can also be formed from a silane and a compound that attaches a polymer on the shell of the hollow silica-based particles.