Invention Grant
- Patent Title: Resin particle and resin dispersion
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Application No.: US11918022Application Date: 2006-04-05
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Publication No.: US08852741B2Publication Date: 2014-10-07
- Inventor: Takao Mukai , Tsuyoshi Izumi , Natsuki Nakamichi
- Applicant: Takao Mukai , Tsuyoshi Izumi , Natsuki Nakamichi
- Applicant Address: JP Kyoto
- Assignee: Sanyo Chemical Industries, Ltd.
- Current Assignee: Sanyo Chemical Industries, Ltd.
- Current Assignee Address: JP Kyoto
- Agency: Edwards Wildman Palmer LLP
- Priority: JP2005-110370 20050406; JP2005-222147 20050729
- International Application: PCT/JP2006/307245 WO 20060405
- International Announcement: WO2006/109653 WO 20061019
- Main IPC: C08J3/12
- IPC: C08J3/12

Abstract:
Resin particles which are excellent in electrostatic property, thermal storage stability and thermal properties, and have evenness of particle diameter are to be provided. The resin particles are core-shell resin particles (C2) each comprising one or more film-like shell layers (P) comprising a first resin (a) and a core layer (Q) comprising a second resin (b). Core-shell type resin particles (C2) each comprising a film-like shell layer (P) in one or more layer structure comprising a first resin (a) and a core layer (Q) in one layer structure comprising a second resin (b), wherein the weight ratio of (P) and (Q) is in a range of (0.1:99.9) to (70:30), the content of volatile components of (C2) is 2% by weight or lower, and (a) has an initial softening temperature of 40 to 270° C., a glass transition temperature of 20 to 250° C., a flow temperature of 60 to 300° C., and the difference of the glass transition temperature and the flow temperature in a range of 0 to 120° C. and contains 20 to 80% by weight of vinyl acetate as constituent units.
Public/Granted literature
- US20090253827A1 Resin Particle and Resin Dispersion Public/Granted day:2009-10-08
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