发明授权
- 专利标题: UV-absorbing core/shell particles
- 专利标题(中): UV吸收芯/壳颗粒
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申请号: US09371064申请日: 1999-08-09
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公开(公告)号: US06312807B1公开(公告)日: 2001-11-06
- 发明人: Bret W. Ludwig , Gilbert L. Eian
- 申请人: Bret W. Ludwig , Gilbert L. Eian
- 主分类号: B32B516
- IPC分类号: B32B516
摘要:
Described are polymeric core/shell particles wherein the core comprises a ultraviolet absorber.