Cross-linked products with the structure of perfluoropolyethers having functional groups
US5104911A · kind A · utility
5Cited by
1References
3Claims
0Family size
Assignee
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Key dates
| Filing date | Apr 10, 1989 |
| Grant date | Apr 14, 1992 |
| Priority date | — |
| Expiry date | Apr 10, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2371/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Cross-linked macromolecular products having the structure of perfluoropolyethers in which the cross-linking is due to C--C links between carbon atoms of different perfluoropolyether chains, said cross-linked products being obtained by treatment by means of U.V. radiations of the corresponding perfluoropolyethers containing at least three groups: ##STR1## arranged along the chain and at one or at both ends; the C--C link of cross-linking coming from the removal of two groups: ##STR2## of different perfluoropolyether chains.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.