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1. WO2011111855 - METHOD FOR MANUFACTURING A WATER-ABSORBING RESIN

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Publication Number WO/2011/111855
Publication Date 15.09.2011
International Application No. PCT/JP2011/055944
International Filing Date 14.03.2011
IPC
C08J 3/12 2006.1
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
JWORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H142
3Processes of treating or compounding macromolecular substances
12Powdering or granulating
B01J 20/26 2006.1
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
20Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
22comprising organic material
26Synthetic macromolecular compounds
C08F 6/00 2006.1
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
6Post-polymerisation treatments
CPC
A61L 15/56
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES
15Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
16Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
42Use of materials characterised by their function or physical properties
56Wetness-indicators or colourants
A61L 15/60
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES
15Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
16Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
42Use of materials characterised by their function or physical properties
60Liquid-swellable gel-forming materials, e.g. super-absorbents
B01J 20/261
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
20Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
22comprising organic material
26Synthetic macromolecular compounds
261obtained by reactions only involving carbon to carbon unsaturated bonds
B01J 20/267
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
20Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
22comprising organic material
26Synthetic macromolecular compounds
265modified or post-treated polymers
267Cross-linked polymers
B01J 2220/68
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
2220Aspects relating to sorbent materials
50Aspects relating to the use of sorbent or filter aid materials
68Superabsorbents
C08F 6/008
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
6Post-polymerisation treatments
008Treatment of solid polymer wetted by water or organic solvents, e.g. coagulum, filter cakes
Applicants
  • 株式会社日本触媒 NIPPON SHOKUBAI CO., LTD. [JP]/[JP] (AllExceptUS)
  • 神▲崎▼　修二 KANZAKI, Syuji [JP]/[JP] (UsOnly)
  • 奥田　純男 OKUDA, Sumio [JP]/[JP] (UsOnly)
  • 石▲崎▼　邦彦 ISHIZAKI, Kunihiko [JP]/[JP] (UsOnly)
  • 松本　智嗣 MATSUMOTO, Satoshi [JP]/[JP] (UsOnly)
Inventors
  • 神▲崎▼　修二 KANZAKI, Syuji
  • 奥田　純男 OKUDA, Sumio
  • 石▲崎▼　邦彦 ISHIZAKI, Kunihiko
  • 松本　智嗣 MATSUMOTO, Satoshi
Agents
  • 植木　久一 UEKI, Kyuichi
Priority Data
2010-05523612.03.2010JP
2010-05523712.03.2010JP
2010-05523812.03.2010JP
Publication Language Japanese (ja)
Filing Language Japanese (JA)
Designated States
Title
(EN) METHOD FOR MANUFACTURING A WATER-ABSORBING RESIN
(FR) PROCÉDÉ DE FABRICATION D'UNE RÉSINE ABSORBANT L'EAU
(JA) 吸水性樹脂の製造方法
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Abstract
(EN) The disclosed method for manufacturing a water-absorbing resin includes: a polymerization step in which an unsaturated monomer in an aqueous solution is polymerized; a drying step in which a water-containing cross-linked granular polymer gel, obtained in a microgranulation step during or after polymerization, is dried; a post-drying pulverization step; a post-drying sorting step; and a surface-treatment step, after the sorting step, in which a water-absorbing resin powder is subjected to a surface treatment. Said method is characterized in that the surface-treatment step is halted, with a heat-treatment machine kept hot, and then subsequently restarted.
(FR) La présente invention concerne un procédé de fabrication d'une résine absorbant l'eau comprenant : une étape de polymérisation dans laquelle un monomère insaturé dans une solution aqueuse est polymérisé ; une étape de séchage dans laquelle est séché un gel polymère granulaire réticulé contenant de l'eau, le gel étant obtenu dans une étape de micro-granulation pendant ou après la polymérisation ; une étape de pulvérisation à la suite du séchage ; une étape de tri à la suite du séchage ; et une étape de traitement de surface, après l'étape de tri, dans laquelle une poudre de résine absorbant l'eau est soumise à un traitement de surface. Ledit procédé est caractérisé en ce que l'étape de traitement de surface est arrêtée, la machine de séchage étant maintenue chaude, et puis ensuite relancée.
(JA) 　不飽和単量体水溶液の重合工程と、重合中または重合後の細粒化工程で得られた粒子状含水ゲル状架橋重合体の乾燥工程と、乾燥後の粉砕工程と、乾燥後の分級工程と、分級工程後の吸水性樹脂粉末の表面処理工程とを含む吸水性樹脂の製造方法において、熱処理機を加熱状態で保持したまま、上記表面処理工程の中断を行い、その後表面処理工程を再開することを特徴とする製造方法である。
Related patent documents
EP2546284
US20130005904
JPWO2011111855
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