Invention Grant
- Patent Title: Hydrogel particles
- Patent Title (中): 水凝胶颗粒
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Application No.: US12307294Application Date: 2007-06-26
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Publication No.: US08222193B2Publication Date: 2012-07-17
- Inventor: Kimitaka Tanaka , Satoshi Ueno , Koji Mine
- Applicant: Kimitaka Tanaka , Satoshi Ueno , Koji Mine
- Applicant Address: JP Tokyo
- Assignee: Kao Corporation
- Current Assignee: Kao Corporation
- Current Assignee Address: JP Tokyo
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2006-198288 20060720; JP2006-270855 20061002
- International Application: PCT/JP2007/063194 WO 20070626
- International Announcement: WO2008/010402 WO 20080124
- Main IPC: C11D3/14
- IPC: C11D3/14
Abstract:
The present invention relates to hydrogel particles containing bubbles and having a specific gravity of 0.7 to 1.00 and an average particle diameter of 50 to 500 μm, as well as a process for producing the same. The hydrogel particles may also contain hollow inorganic particles.
Public/Granted literature
- US20090312213A1 HYDROGEL PARTICLE Public/Granted day:2009-12-17
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