CA2175814A1 - Antiperspirants containing aerogel particles - Google Patents

Antiperspirants containing aerogel particles

Info

Publication number
CA2175814A1
CA2175814A1 CA2175814A CA2175814A CA2175814A1 CA 2175814 A1 CA2175814 A1 CA 2175814A1 CA 2175814 A CA2175814 A CA 2175814A CA 2175814 A CA2175814 A CA 2175814A CA 2175814 A1 CA2175814 A1 CA 2175814A1
Authority
CA
Canada
Prior art keywords
species
solvent system
precipitating
precipitate
aerogel particles
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA2175814A
Other languages
French (fr)
Other versions
CA2175814C (en
Inventor
Stephane Fabrice Rouanet
William Edward Mcgovern
Wanqing Cao
Irving M. Klotz
Angel L. Carrillo
John M. Moses
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gillette Co LLC
Original Assignee
Stephane Fabrice Rouanet
William Edward Mcgovern
Wanqing Cao
Irving M. Klotz
Angel L. Carrillo
John M. Moses
Cf Technologies, Inc.
The Gillette Company
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Stephane Fabrice Rouanet, William Edward Mcgovern, Wanqing Cao, Irving M. Klotz, Angel L. Carrillo, John M. Moses, Cf Technologies, Inc., The Gillette Company filed Critical Stephane Fabrice Rouanet
Priority to CA002263805A priority Critical patent/CA2263805A1/en
Publication of CA2175814A1 publication Critical patent/CA2175814A1/en
Application granted granted Critical
Publication of CA2175814C publication Critical patent/CA2175814C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q15/00—Anti-perspirants or body deodorants
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
    • A61K8/04—Dispersions; Emulsions
    • A61K8/042—Gels
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
    • A61K8/26—Aluminium; Compounds thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J13/00—Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
    • B01J13/0091—Preparation of aerogels, e.g. xerogels

Abstract

A method for providing aerogels, and aerogels produced according to the method is described. The method involves contacting a solution containing material to be processed with a species selected to precipitate the material and selected so as to be miscible with the solvent system of the solution. After the material is precipitated, the material may be washed with the precipitating species until it is substantially free of solvent system. Then the precipitating species containing the material precipitate is taken above its critical point, and the supercritical fluid is exhausted above its critical temperature. Alternately, a separate isolating species is introduced to displace the precipitating species, or the precipitating species/solvent system mixture. The isolating species then is taken above its critical point, and exhausted above its critical temperature. The invention provides for batch or continuous processes. <IMAGE>
CA002175814A 1993-11-08 1994-11-07 Antiperspirants containing aerogel particles Expired - Fee Related CA2175814C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA002263805A CA2263805A1 (en) 1993-11-08 1994-11-07 Method of forming particles using a supercritical fluid and aerogel particles formed thereby

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US333,289 1989-04-05
US14919093A 1993-11-08 1993-11-08
US149,190 1993-11-08
US33328994A 1994-11-02 1994-11-02
PCT/US1994/012669 WO1995013132A1 (en) 1993-11-08 1994-11-07 Method of forming particles using a supercritical fluid, aerogel particles formed thereby, and antiperspirants containing aerogel particles

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CA002263805A Division CA2263805A1 (en) 1993-11-08 1994-11-07 Method of forming particles using a supercritical fluid and aerogel particles formed thereby

Publications (2)

Publication Number Publication Date
CA2175814A1 true CA2175814A1 (en) 1995-05-18
CA2175814C CA2175814C (en) 2000-01-04

Family

ID=26846536

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002175814A Expired - Fee Related CA2175814C (en) 1993-11-08 1994-11-07 Antiperspirants containing aerogel particles

Country Status (13)

Country Link
US (2) US5725836A (en)
EP (2) EP0728037B1 (en)
JP (1) JPH09508055A (en)
CN (1) CN1139390A (en)
AT (1) ATE175589T1 (en)
AU (1) AU688820B2 (en)
BR (1) BR9408015A (en)
CA (1) CA2175814C (en)
DE (1) DE69415998T2 (en)
ES (1) ES2126867T3 (en)
NZ (1) NZ276277A (en)
PL (1) PL314294A1 (en)
WO (1) WO1995013132A1 (en)

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FR2968935B1 (en) * 2010-12-21 2012-12-28 Oreal USE OF HYDROPHOBIC AEROGEL PARTICLES AS DEODORANT ACTIVE; METHOD OF TREATING HUMAN BODILY ODORS
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Also Published As

Publication number Publication date
CN1139390A (en) 1997-01-01
EP0728037B1 (en) 1999-01-13
BR9408015A (en) 1996-12-17
EP0868942A1 (en) 1998-10-07
JPH09508055A (en) 1997-08-19
NZ276277A (en) 1998-04-27
CA2175814C (en) 2000-01-04
WO1995013132A1 (en) 1995-05-18
EP0728037A1 (en) 1996-08-28
ES2126867T3 (en) 1999-04-01
DE69415998D1 (en) 1999-02-25
AU1048795A (en) 1995-05-29
ATE175589T1 (en) 1999-01-15
US5725836A (en) 1998-03-10
US5864923A (en) 1999-02-02
PL314294A1 (en) 1996-09-02
DE69415998T2 (en) 1999-08-12
AU688820B2 (en) 1998-03-19

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