发明名称 |
Resin particle and resin dispersion |
摘要 |
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. |
申请公布号 |
US8852741(B2) |
申请公布日期 |
2014.10.07 |
申请号 |
US200611918022 |
申请日期 |
2006.04.05 |
申请人 |
Sanyo Chemical Industries, Ltd. |
发明人 |
Mukai Takao;Izumi Tsuyoshi;Nakamichi Natsuki |
分类号 |
C08J3/12 |
主分类号 |
C08J3/12 |
代理机构 |
Edwards Wildman Palmer LLP |
代理人 |
Edwards Wildman Palmer LLP |
主权项 |
1. Core-shell 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 the resin (a) contains 20 to 80% by weight of vinyl acetate as constituent units, wherein the resin (b) comprises a polyurethane resin. |
地址 |
Kyoto JP |