Preparation of end-alkoxylated diorganopolysiloxanes
US5055502A · kind A · utility
18Cited by
6References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 26, 1989 |
| Grant date | Oct 8, 1991 |
| Priority date | — |
| Expiry date | Jul 26, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G77/18
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Linear diorganopolysiloxanes having at least two alkoxy groups at each end of the polymer chain, well suited for formulation into single-component, storage-stable CVE polysiloxane compositions curable into elastomeric state in the presence of moisture, are prepared by functionalizing an alpha,omega-dihydroxydiorganopolysiloxane oil with a polyalkoxysilane, in the presence of a catalytically effective amount of a zinc complex of the formula: ##STR1##
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.