WATER-ABSORBENT RESIN PARTICLES, WATER-ABSORBENT ARTICLE, AND METHOD FOR MANUFACTURING SAME

• Main Author: YABUGUCHI Hiroki
• Format: Patent
• Language: English; French; Japanese
• Published: 18.06.2020
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; GENERAL PROCESSES OF COMPOUNDING; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; THEIR PREPARATION OR CHEMICAL WORKING-UP; THEIR RELEVANT APPARATUS; TRANSPORTING; WORKING-UP

Disclosed are water-absorbent resin particles of which the stain index represented by formula (1) (stain index = 1 minute value (mL/g) of DW under no added pressure + artificial urine flow rate (g/minute) at tenfold swelling) is at least 10.0 and the fluid absorption for physiological saline is at least 50.0g/g. L'invention concerne des particules de résine absorbant l'eau pour lesquelles, l'indice de pénétration, représenté par la formule (1) (indice de pénétration = valeur (mL / g) par minute de DW sans mise sous pression + vitesse de passage d'urine artificielle (g / min.) à un gonflement de 10 fois) est supérieur ou égal à 10,0 et la quantité d'absorption d'une solution saline physiologique est supérieure ou égale à 50,0 g / g. 下記式（１）：しみわたり指数＝無加圧ＤＷの１分値（ｍＬ／ｇ）＋１０倍膨潤時の人工尿通液速度（ｇ／分）　・・・（１）で表される、しみわたり指数が１０．０以上であり、生理食塩水の吸水量が５０．０ｇ／ｇ以上である、吸水性樹脂粒子が開示される。