Invention Grant
- Patent Title: Organic polymer particles and process for producing the same, magnetic particles for diagnostics, carboxyl group-containing particles and process for producing the same, and probe-bound particles and process for producing the same
- Patent Title (中): 有机聚合物粒子及其制造方法，诊断用磁性粒子，含羧基粒子及其制造方法，探针结合粒子及其制造方法
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Application No.: US11588388Application Date: 2006-10-27
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Publication No.: US08703289B2Publication Date: 2014-04-22
- Inventor: Kouji Tamori , Tetsuo Fukuta , Mitsuhiro Murata , Masaru Ueno , Satoshi Katayose , Eiji Takamoto , Kiyoshi Kasai
- Applicant: Kouji Tamori , Tetsuo Fukuta , Mitsuhiro Murata , Masaru Ueno , Satoshi Katayose , Eiji Takamoto , Kiyoshi Kasai
- Applicant Address: JP Tokyo
- Assignee: JSR Corporation
- Current Assignee: JSR Corporation
- Current Assignee Address: JP Tokyo
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2005-318065 20051101; JP2006-15994 20060125; JP2006-48947 20060224; JP2006-76085 20060320; JP2006/85040 20060327
- Main IPC: B32B5/16
- IPC: B32B5/16 ; A61K9/14
Abstract:
The organic polymer particles comprise a carboxyl group and 2,3-dihydroxypropyl group, and the magnetic particles for diagnostics comprise fine magnetic material particles and a polymer part containing a hydrophilic polymer part and a crosslinked polymer part, a dry coating film obtained from a water dispersion thereof having a contact angle with water of 5° to 60°. The process for producing the carboxyl group-containing particles comprises a step of producing an ester bond by reacting a hydroxyl group in organic polymer particles having the hydroxyl group with a carboxylic anhydride. The organic polymer particles comprise a hydroxyl group originating from a 2,3-dihydroxypropyl group and a polyoxyethylene group.
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