发明申请
US20090286899A1 PLATINUM CATALYSTS SUPPORTED ON NANOSIZE TITANIUM DIOXIDE, THEIR USE IN HYDROSILYLATION AND COMPOSITIONS COMPRISING SUCH CATALYSTS
有权
在纳米二氧化钛上支持的铂催化剂,它们在含水催化剂中的用途和包含这种催化剂的组合物
- 专利标题: PLATINUM CATALYSTS SUPPORTED ON NANOSIZE TITANIUM DIOXIDE, THEIR USE IN HYDROSILYLATION AND COMPOSITIONS COMPRISING SUCH CATALYSTS
- 专利标题(中): 在纳米二氧化钛上支持的铂催化剂,它们在含水催化剂中的用途和包含这种催化剂的组合物
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申请号: US11720889申请日: 2005-12-01
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公开(公告)号: US20090286899A1公开(公告)日: 2009-11-19
- 发明人: Marco Hofmann , Hans-Jürgen Eberle
- 申请人: Marco Hofmann , Hans-Jürgen Eberle
- 申请人地址: DE Munich
- 专利权人: WACKER CHEMIE AG
- 当前专利权人: WACKER CHEMIE AG
- 当前专利权人地址: DE Munich
- 优先权: DE102004059375.2 20041209
- 国际申请: PCT/EP05/12840 WO 20051201
- 主分类号: C08F2/46
- IPC分类号: C08F2/46 ; C07F7/08 ; B01J23/42 ; C08L83/05 ; C08G77/08 ; C25B3/00
摘要:
Nanosize titanium dioxide having supported thereon metallic platinum are efficient hydrosilylation catalysts whose hydrosilylation activity may be increased by irradiation. The catalysts are prepared by depositing soluble platinum compounds on a titanium dioxide sol or titanium dioxide pigments followed by drying, calcining, and reduction to platinum metal. The catalysts are particularly useful in preparing addition-curable organopolysiloxane elastomers.
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