Superabsorbent polymer having a capacity increase

• Main Authors: TIAN, GONG-LU, BERGMAN, DAVID L, SHI, YA-RU
• Format: Patent
• Language: Chinese; English
• Published: 01.12.2011
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; COMPOSITIONS BASED THEREON; GENERAL PROCESSES OF COMPOUNDING; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; WORKING-UP

The present invention relates to a particulate superabsorbent polymer comprising a monomer and a crosslinker composition wherein the particulate superabsorbent polymer has a Centrifuge Retention Capacity Increase of 2g/g or more as set forth herein in the Centrifuge Retention Capacity Increase Test. The present invention further relates to a superabsorbent polymer comprising a crosslinker composition comprising a silane compound comprising at least one vinyl group or one allyl group attached to a silicon atom, and at least one Si-O bond. The present invention further relates to an absorbent article that includes such superabsorbent polymers.