Patent · US Active

Polyvinyl alcohol copolymers comprising biomolecules

US7772286B2 · kind B2 · utility

10Cited by

3References

24Claims

0Family size

Assignee

EYESENSE GMBH · CH

Inventors

Achim Müller · Aschaffenburg, DE
Roland Schmieder · Aschaffenburg, DE
Katharina Schmid · Aschaffenburg, DE

Key dates

Filing date	Feb 27, 2004
Grant date	Aug 10, 2010
Priority date	—
Expiry date	Feb 12, 2027

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08F2810/30
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

The present invention relates to a copolymer, which is the reaction product of (a) a first prepolymer, comprising a bioactive moiety and at least one radically polymerizable group, and (b) a second prepolymer which is a polyvinyl alcohol having a weight average molecular weight of at least about 2000 that, based on the number of hydroxy groups of the polyvinyl alcohol, comprises from 0.5 to 80% structural units of formula (I) wherein: R is alkylene having up to 8 carbon atoms, R1 is hydrogen or alkyl having up to seven carbon atoms, and R2 is an olefinically unsaturated, electron-attracting copolymerizable radical.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.