A - HUMAN NECESSITIES
A61 - MEDICAL OR VETERINARY SCIENCE
A61L - METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL
C - CHEMISTRY
C08 - ORGANIC MACROMOLECULAR COMPOUNDS
C08B - POLYSACCHARIDES
A - HUMAN NECESSITIES
A61 - MEDICAL OR VETERINARY SCIENCE
A61L - METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL
A61L27/14 - Macromolecular materials
A61L33/0005 - {Use of materials characterised by their function or physical properties}
A61L33/0029 - {using an intermediate layer of polymer}
A61L33/0047 - {Enzymes, e.g. urokinase, streptokinase}
C - CHEMISTRY
C08 - ORGANIC MACROMOLECULAR COMPOUNDS
C08B - POLYSACCHARIDES
C08B37/0075 - {Heparin
C - CHEMISTRY
C08 - ORGANIC MACROMOLECULAR COMPOUNDS
C08J - WORKING-UP
C08J2375/04 - Polyurethanes
C08J7/12 - Chemical modification
C - CHEMISTRY
C12 - BIOCHEMISTRY
C12N - MICROORGANISMS OR ENZYMES
C12N11/087 - Acrylic polymers
C12N11/093 - Polyurethanes
Y - NEW / CROSS SECTIONAL TECHNOLOGIES
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Y10S - TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y10S623/92 - Method or apparatus for preparing or treating prosthetic
Y - NEW / CROSS SECTIONAL TECHNOLOGIES
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
Y10T428/31504 - Composite [nonstructural laminate]
Y10T428/31536 - Including interfacial reaction product of adjacent layers