Method for producing water-absorbing polymer particles by suspension polymerization

• Main Authors: BAUER STEPHAN, MARK TINA, DANIEL THOMAS, KONIG LYDIA, HAGEN YVONNE
• Format: Patent
• Language: Chinese; English
• Published: 31.08.2016
• 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; 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

The invention relates to a method for producing water-absorbing polymer particles by suspension polymerization and thermal surface post-curing. The base polymer obtained by suspension polymerization has a centrifuge retention capacity of at least 37 g/g and the thermal surface post-curing is carried out at between 100 -190 DEG C. 种通过悬浮聚合和热表面后交联制备吸水性聚合物颗粒的方法，其中通过悬浮聚合获得的基础聚合物具有至少37g/g的离心保留容量且热表面后交联在100至190℃下进行。