COPOLYMER HAVING MODIFIED NCO-REACTIVITY, ITS PRODUCTION, MODIFICATION OF SURFACE OF HYDROPHILIC POLYMER AND PRODUCT HAVING MODIFYED SURFACE

• Main Authors: LORENZ GUENTER DR, ANDERS CHRISTINE DR
• Format: Patent
• Language: English
• Published: 11.05.1999
• Edition: 6
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES; CHEMISTRY; COMPOSITIONS BASED THEREON; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; GENERAL PROCESSES OF COMPOUNDING; HUMAN NECESSITIES; HYGIENE; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES; MEDICAL OR VETERINARY SCIENCE; METALLURGY; METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; WORKING-UP

PROBLEM TO BE SOLVED: To obtain the subject copolymer suitable for hygienic and industrial uses, food industry, biotechnology and medical uses, capable of avoiding and controlling the adhesion and growth of bacteria on apparatus, tool, etc., by including a specific monomer. SOLUTION: This copolymer comprises (A) at least one sulfonate group- containing monomer (e.g. styrene sulfonate or vinyl sulfonate), (B) at least one carboxyl group-containing monomer (e.g. acrylic acid, methacrylic acid or maleic acid), (C) at least one NCO-reactive group (e.g. hydroxyl group, a primary or a secondary amino group) introduced after copolymerization and preferably optionally (D) at least one functional group-containing other monomer. Preferably the molar ratio of the carboxyl group to the sulfonate group is 0.1-10. Preferably the mol content of the NCO-reactive group based on the whole functional value of the copolymer is 5-20 mol.%.