| abstract |
New biocompatible composite material (I) comprises polymer-embedded felt material contg. collagen fibres (II), and having (II) extending from its surface. (I) is obtd. by: (a) preparing a felt of native (II); (b) impregnating the felt with polymerisable monomers; (c) partially polymerising the monomers by exposure to light and/or heat in an oxygen-contg. atmos.; and (d) removing unpolymerised monomers or short-chain oligomers to give (I) having fine (II) exposed at its surface. |