Polymers containing zwitterionic monomers
US6673883B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 12, 1999 |
| Grant date | Jan 6, 2004 |
| Priority date | — |
| Expiry date | Jul 12, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F230/085
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A cross-linkable polymer formed from monomer includinga) a hydroxyl-group containing monomer of the formula I in which R26 is hydrogen or a C1-4-alkyl group;A1 is —O— or —NR27— where R27 is hydrogen or a C1-4-alkyl group or a group B9R—(OH)n;B9 is a bond, a straight or branched alkylene, oxa alkylene or oligooxa alkylene group;R13 is a n+1 functional C1-24 alkylene group which may be substituted, andn is an integer of one or more;b) a reactive monomer of the formula (II) in which R19 is hydrogen or a C1-4-alkyl group;A2 is —O— or —NR21— where R21 is hydrogen, or a C1-4-alkyl groupR12 is a C1-24 straight or branched alkylene, oxaalkylene or oligo oxaalkylene group in which each alkylene group has 1 to 6 carbon atoms;A3 is a bond or —O—; andeach R16 is independently selected from C1-6-alkyl groups. Preferably the polymer includes a zwitterionic monomer and is useful for providing stable biocompatible coatings on substrates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.