Platinum complex
US4288345A · kind A · utility
79Cited by
10References
10Claims
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Assignee
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Key dates
| Filing date | Feb 6, 1980 |
| Grant date | Sep 8, 1981 |
| Priority date | — |
| Expiry date | Feb 6, 2000 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G77/20
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Platinum complexes of unsaturated siloxanes, substantially free of inorganic halogen and inhibitory compounds, provide superior hydrosilation catalysts when the unsaturated siloxane comprises, per gram-atom of platinum, PA0 (i) a combination of one mole of (CH.sub.2 .dbd.CH)((R).sub.2 Si).sub.2 O, and one mole of (CH.sub.2 .dbd.CH) (R).sub.2 SiOSi(R.sub.2)OH; PA0 (ii) two moles of (CH.sub.2 .dbd.CH)((R).sub.2 Si).sub.2 O; or PA0 (iii) a mixture of (i) and (ii), wherein R is free of aliphatic unsaturation and is selected from alkyl, cycloalkyl, and aryl groups.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.