Invention Grant
- Patent Title: Hydrophobic self-cleaning coating compositions
- Patent Title (中): 疏水性自洁涂料组合物
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Application No.: US12605613Application Date: 2009-10-26
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Publication No.: US08147607B2Publication Date: 2012-04-03
- Inventor: Richard J. Baumgart , Subbareddy Kanagasabapathy
- Applicant: Richard J. Baumgart , Subbareddy Kanagasabapathy
- Applicant Address: US OH Dublin
- Assignee: Ashland Licensing and Intellectual Property LLC
- Current Assignee: Ashland Licensing and Intellectual Property LLC
- Current Assignee Address: US OH Dublin
- Agency: Wood, Herron & Evans, L.L.P.
- Main IPC: C09D1/00
- IPC: C09D1/00 ; C09D5/00

Abstract:
Coating compositions of the present invention comprise hydrophobic particles, an alcohol, a solvent, and an effective amount of water such that coatings formed therefrom are hydrophobic. The hydrophobic particles may comprise a metal oxide, such as silica (SiO2), alumina (Al2O3), titania (TiO2), or zinc oxide (ZnO), or combinations thereof. In one embodiment, the hydrophobic particles comprise fumed silica. The amount of hydrophobic particles is in the range of from about 0.3 wt. % to about 2 wt. %. In one embodiment, the effective amount of water is at least about 0.066 wt. %. The ratio of the amount of the solvent to the amount of the alcohol is slightly less than 100, and, in another embodiment, is at least about 50 to 50. A surface treated with the composition is characterized by a water contact angle of 115° or more, and more particularly 135° or more.
Public/Granted literature
- US20110094417A1 HYDROPHOBIC SELF-CLEANING COATING COMPOSITIONS Public/Granted day:2011-04-28
Information query
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