Epoxy alkoxy siloxane oligomers
US6391999B1 · kind B1 · utility
37Cited by
5References
23Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 21, 2000 |
| Grant date | May 21, 2002 |
| Priority date | — |
| Expiry date | Jan 21, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G77/20
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Polymerizable siloxane oligomers comprising a plurality of repeating units of formula A and at least one unit of formula B: and terminating in a residue R2 or R8 are disclosed. In these formulae FG is a functional group, such as 2-(3,4-epoxycyclohexyl), and the R groups are alkyl, aryl, haloalkyl, aralkyl, alkoxy or aryloxy of 1 to 10 carbons. Processes for preparing the oligmers by hydrolysis/condensation of monomers of formula (RO)3Si FG and one or more alkoxy silane monomers of formula R3R4R8SiOR2a are also disclosed, as are polymers resulting from the cationic polymerization of the oligomers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.