LIQUID-ABSORBING POLYMERS AND METHOD OF THEIR SYNTHESIS

• Main Authors: JONAS GERD, KHARTAN KHANS-GEORG, BREM GEL'MUT, PFLJUGER KLAUS, SHTOKKHAUZEN DOL'F, MESSNER BERNFRID
• Format: Patent
• Language: English
• Published: 20.11.2002
• Edition: 7
• Subjects: BANDAGES, DRESSINGS OR ABSORBENT PADS; BASIC ELECTRIC ELEMENTS; CABLES; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES; CHEMISTRY; COMPOSITIONS BASED THEREON; CONDUCTORS; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; ELECTRICITY; FILTERS IMPLANTABLE INTO BLOOD VESSELS; FIRST-AID KITS; FOMENTATION; HUMAN NECESSITIES; HYGIENE; INSULATORS; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED 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; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; PROSTHESES; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES; THEIR PREPARATION OR CHEMICAL WORKING-UP; TREATMENT OR PROTECTION OF EYES OR EARS

FIELD: polymers. SUBSTANCE: invention describes cross-linked polymer absorbing aqueous liquid comprising of partially neutralized monomers containing monoethylene-unsaturated acidic groups. Polymer is synthesized by using mixture of cross-linking agent with monomer from I. cross-linking agent, II. monomer, III. cross-linking agent and/or di-, respectively, triallylamine and/or bis-acrylamide where R1 means polyatomic C2-10-alkyl; R2 means direct or branched C2-10-alkenyl; R3 means H, CH3, C2H5; R4 means H, direct or branched C1-10-alkyl; R5 means CO, CH2; R6 means H, CH3; x has value from 2 to 6; u has value from 0 to 15; v has value from 1 to 45; z has value from 3 to 20. Also, invention describes method of synthesis of cross-linked polymer absorbing aqueous liquids. Synthesized polymers show retentivity capacity at high absorption degree under pressure. EFFECT: improved method of synthesis, valuable properties of polymers. 18 cl, 7 tbl