Novel silicone/polylactone graft copolymer
US4636552A · kind A · utility
33Cited by
3References
17Claims
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Key dates
| Filing date | May 30, 1985 |
| Grant date | Jan 13, 1987 |
| Priority date | — |
| Expiry date | May 30, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G18/8064
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Novel silicone/polylactone graft copolymers, well suited as polymer composition additives, especially those destined for biomedical applications, have the average general formula: ##STR1## in which p is an integer or decimal ranging from 1.5 to 6, q is an integer or decimal ranging from 0 to 20, A is a divalent hydrocarbon having from 2 to 20 carbon atoms, n is an integer ranging from 3 to 12, m is an integer ranging from 2 to 25, the radicals R', which may be identical or different, are each hydrogen or C.sub.1 -C.sub.4 alkyl, and R is a hydrocarbon having up to 24 carbon atoms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.