UN PROCESO PARA HACER UN COMPUESTO DE TEJIDO FIBROSO ABSORBENTE

• Main Authors: RANGANATHAN, SRIDHAR, JACKSON, DAVID M, LAUMER, JASON MATTHEW, KO, YOUNG CHAN, KELLENBERGER, STANLEY R, THIESSEN, RICHARD H, SHARMA, VARUNESH, SOERENS, DAVE A
• Format: Patent
• Language: Spanish
• Published: 01.12.2004
• Edition: 7
• Subjects: BANDAGES, DRESSINGS OR ABSORBENT PADS; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; FILTERS IMPLANTABLE INTO BLOOD VESSELS; FIRST-AID KITS; FOMENTATION; HUMAN NECESSITIES; HYGIENE; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES; MEDICAL OR VETERINARY SCIENCE; METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; PROSTHESES; TREATMENT OR PROTECTION OF EYES OR EARS

Se proporciona un proceso para hacer un compuesto de tela fibrosa absorbente que incluye una dispersión controlable y estable de polímero superabsorbente. Se proporciona un tejido pre-formado, que deseablemente incluye fibras de celulosa y opcionalmente fibras termoplásticas. Las composiciones precursoras de polímero superabsorbente primera y segunda se agregan al tejido fibroso usando corrientes separadas. Las composiciones precursoras de polímero superabsorbente primera y segunda se combinan una con otra y reaccionan químicamente en o sobre el tejido fibroso para formar un polímero superabsorbente que se pega a la superficie del tejido fibroso. A process for making an absorbent fibrous web composite including a stable, controllable dispersion of superabsorbent polymer is provided. A pre-formed web, desirably including cellulose fibers and, optionally, thermoplastic fibers is provided. First and second superabsorbent polymer precursor compositions are added to the fibrous web using separate streams. The first and second superabsorbent polymer precursor compositions combine with each other and chemically react on or in the fibrous web, to form a superabsorbent polymer which sticks to the surface of the fibrous web.