发明授权
- 专利标题: Hollow silicone resin particles and method for the preparation thereof
- 专利标题(中): 中空硅树脂颗粒及其制备方法
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申请号: US09235210申请日: 1999-01-22
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公开(公告)号: US06180236B2公开(公告)日: 2001-01-30
- 发明人: Mitsuo Hamada , Koichi Ozaki , Toyohiko Yamadera
- 申请人: Mitsuo Hamada , Koichi Ozaki , Toyohiko Yamadera
- 优先权: JP8-210520 19960722
- 主分类号: B32B516
- IPC分类号: B32B516
摘要:
Novel hollow silicone resin particles, having an average particle size of 0.1 to 100 &mgr;m are disclosed. The silicone resin particles comprise a skin formed from thermoplastic silicone resin configured in the shape of a hollow capsule. The hollow thermoplastic silicone resin particles are prepared by spraying a dispersion of water and thermoplastic silicone resin dissolved in solvent into hot gas. The hot gas evaporates the solvent and water and at the same time causes solidification of the thermoplastic silicone resin while it is in the spray state, so as to form a plurality of hollow particles therefrom.
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