Method for the preparation of aminopropyl or aminoalkyl functional polyalkyl or aryl siloxanes
US6177583A · kind A · utility
2Cited by
2References
5Claims
0Family size
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Key dates
| Filing date | Aug 30, 1999 |
| Grant date | Jan 23, 2001 |
| Priority date | — |
| Expiry date | Aug 30, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G77/388
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A new method for the preparation of aminopropyl terminated or internal functionalized polyalkyl or aryl siloxanes is described. The method involves readily available commercial starting materials and proceeds under mild conditions in high yield. Purification is facilitated over present commercial procedures and a wider variety of internal functionalized siloxanes may be prepared. The method involves hydrosilation of commercially availably alkyl or aryl functional hydrosilicones with allyl amine or other alkenyl or arenyl amine in the presence of platinum (0) divinyltetramethylsiloxane or platinum (0) cyclovinyl complexes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.