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Publication numberWO2008153687 A3
Publication typeApplication
Application numberPCT/US2008/006443
Publication date29 Jan 2009
Filing date20 May 2008
Priority date24 May 2007
Also published asUS8338351, US20080221263, US20110177252, WO2008153687A2
Publication numberPCT/2008/6443, PCT/US/2008/006443, PCT/US/2008/06443, PCT/US/8/006443, PCT/US/8/06443, PCT/US2008/006443, PCT/US2008/06443, PCT/US2008006443, PCT/US200806443, PCT/US8/006443, PCT/US8/06443, PCT/US8006443, PCT/US806443, WO 2008/153687 A3, WO 2008153687 A3, WO 2008153687A3, WO-A3-2008153687, WO2008/153687A3, WO2008153687 A3, WO2008153687A3
InventorsSubbareddy Kanagasabapathy, Richard J Baumgart, Michael A Dituro, Wen-Chen Su, Frances E Lockwood
ApplicantAshland Licensing & Intellectu, Subbareddy Kanagasabapathy, Richard J Baumgart, Michael A Dituro, Wen-Chen Su, Frances E Lockwood
Export CitationBiBTeX, EndNote, RefMan
External Links: Patentscope, Espacenet
Hydrophobic self-cleaning coating composition
WO 2008153687 A3
Abstract
A super hydrophobic self-cleaning coating composition composed of from 0.001 to 5% by weight of hydrophobic fumed silicas coated in 95% to 99.999% by weight of a solvent, preferably acetone, to form a super hydrophobic coating for forming an almost clear, translucent dirt repellant film on a painted material, plastic, metal, glass, ceramic, fiberglass, wood, waxed or polymer substrate. The treated fumed silica in a solvent forms a film having a contact angle of at least 165 degrees as compared to water having a contact angle of from 50 to 60 degrees on a noncoated surface. The composition imparts a degree of hydrophobicity to the surface so that the surface has a tilt angle of sliding of less than 2 degrees as compared to water on a noncoated surface having a tilt angle of sliding of 90 degrees or higher.
Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
WO2007128636A2 *5 Apr 200715 Nov 2007Evonik Degussa GmbhFumed silica dispersion
US5269958 *13 Jan 199314 Dec 1993S. C. Johnson & Son, Inc.Self-pressurized aerosol spot dry cleaning compositions
US6020419 *16 Mar 19991 Feb 2000Bayer AktiengesellschaftTransparent coating compositions containing nanoscale particles and having improved scratch resistance
US6150318 *24 Jun 199621 Nov 2000Reckitt Benckiser Australia LimitedAerosol cleaning compositions
US6599973 *27 Sep 200029 Jul 2003E. I. Du Pont De Nemours And CompanyAqueous graft copolymer pigment dispersants
US20020150723 *9 Apr 200217 Oct 2002Creavis Gesellschaft F. Techn. U. Innovation MbhSurfaces which are self-cleaning by hydrophobic structures, and a process for their production
US20050282953 *10 Jun 200522 Dec 2005Microphase Coatings, Inc.Hydrophobic coating composition
Non-Patent Citations
Reference
1 *PILOTEK ET AL.: "Wettability of Microstructured Hydrophobic Sol-Gel Coatings", JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY, vol. 26, January 2003 (2003-01-01), pages 790 - 792
Classifications
International ClassificationC11D1/82
Cooperative ClassificationY10T428/31663, Y10T428/2995, C09D183/04, C09D5/1618, C08K9/04, C09D7/1225, C08K3/36, C09D7/1266
European ClassificationC09D7/12N1, C09D183/04, C09D5/16C3E, C09D7/12D2B
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