ATE175217T1 - Verfahren zum recycling von wasserabsorbierendem feinkörnigem gut in eine polymerisationsvorrichtung - Google Patents

Verfahren zum recycling von wasserabsorbierendem feinkörnigem gut in eine polymerisationsvorrichtung

Info

Publication number
ATE175217T1
ATE175217T1 AT92108141T AT92108141T ATE175217T1 AT E175217 T1 ATE175217 T1 AT E175217T1 AT 92108141 T AT92108141 T AT 92108141T AT 92108141 T AT92108141 T AT 92108141T AT E175217 T1 ATE175217 T1 AT E175217T1
Authority
AT
Austria
Prior art keywords
fines
aqueous fluid
fluid absorbent
absorbent polymer
polymer
Prior art date
Application number
AT92108141T
Other languages
English (en)
Inventor
Andrew T Graham
Herbert Gartner
Original Assignee
Dow Chemical Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=24816532&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ATE175217(T1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Dow Chemical Co filed Critical Dow Chemical Co
Application granted granted Critical
Publication of ATE175217T1 publication Critical patent/ATE175217T1/de

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS 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
    • A61L15/00Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/42Use of materials characterised by their function or physical properties
    • A61L15/60Liquid-swellable gel-forming materials, e.g. super-absorbents
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08FMACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F265/00Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group C08F20/00

Landscapes

  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Hematology (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
AT92108141T 1991-05-16 1992-05-14 Verfahren zum recycling von wasserabsorbierendem feinkörnigem gut in eine polymerisationsvorrichtung ATE175217T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/701,232 US5342899A (en) 1991-05-16 1991-05-16 Process for recycling aqueous fluid absorbents fines to a polymerizer

Publications (1)

Publication Number Publication Date
ATE175217T1 true ATE175217T1 (de) 1999-01-15

Family

ID=24816532

Family Applications (1)

Application Number Title Priority Date Filing Date
AT92108141T ATE175217T1 (de) 1991-05-16 1992-05-14 Verfahren zum recycling von wasserabsorbierendem feinkörnigem gut in eine polymerisationsvorrichtung

Country Status (9)

Country Link
US (1) US5342899A (de)
EP (1) EP0513780B2 (de)
JP (1) JP3155006B2 (de)
KR (1) KR100231077B1 (de)
AT (1) ATE175217T1 (de)
CA (1) CA2068859A1 (de)
DE (1) DE69228019T3 (de)
MX (1) MX9202309A (de)
WO (1) WO1992020723A1 (de)

Families Citing this family (78)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4412153C2 (de) * 1994-04-11 1999-08-19 Stockhausen Chem Fab Gmbh Absorptionsmittel für Säuren und Laugen
GB9413605D0 (en) * 1994-07-06 1994-08-24 American Colloid Co Method of increasing the size and absorption under load of super-absorbent fine particles by impregnation with an aqueous acrylic monomer solution
DE19601764A1 (de) 1996-01-19 1997-07-24 Hoechst Ag Verfahren zur Herstellung hydrophiler, hochquellfähiger Hydrogele
US6228930B1 (en) 1997-06-18 2001-05-08 Nippon Shokubai Co., Ltd. Water-absorbent resin granule-containing composition and production process for water-absorbent resin granule
JPH11279287A (ja) 1998-03-31 1999-10-12 Nippon Shokubai Co Ltd 吸水剤組成物および吸水剤の製造方法
EP1130045B2 (de) 2000-02-29 2015-10-28 Nippon Shokubai Co., Ltd. Verfaren zur Herstellung eines wasserabsorbierenden Harzpulvers
EP1358224B1 (de) * 2000-12-29 2004-12-15 Dow Global Technologies Inc. Wasserabsorbierende harzteilchen aus vernetzten carboxylgruppenhaltigen polymeren mit geringem monomergehalt
EP1404724A1 (de) * 2001-06-29 2004-04-07 Dow Global Technologies Inc. Wasserabsorbierende carboxylhaltige polymere mit geringem monomergehalt
DE60209916T2 (de) * 2001-06-29 2006-11-16 Dow Global Technologies, Inc., Midland Superabsorbierende carboxylhaltige polymere mit geruchseindämmenden eigenschaften und verfahren zu ihrer herstellung
WO2003002164A2 (en) * 2001-06-29 2003-01-09 Dow Global Technologies Inc. Superabsorbent carboxyl-containing polymers with odor control
US6987151B2 (en) * 2001-09-12 2006-01-17 Dow Global Technologies Inc. Continuous polymerization process for the manufacture of superabsorbent polymers
US20030197305A1 (en) * 2002-04-23 2003-10-23 Mike Collins Method of using clays to form absorbent materials
BR0312326A (pt) * 2002-06-26 2005-04-12 Dow Global Technologies Inc Processo para a preparação de polìmeros absorventes de água contendo ìons ferro com baixo teor de monÈmero
DE10334271B4 (de) 2003-07-25 2006-02-23 Stockhausen Gmbh Verfahren zur Agglomeration von Superabsorberfeinteilchen, daraus erhältliche Superabsorberpartikel, deren Verwendung sowie diese beinhaltende Verbunde
BRPI0607725B1 (pt) 2005-02-15 2017-07-04 Nippon Shokubai Co., Ltd Water absorption agent, water absorption article and method for the production of an agent for water absorption
TWI394789B (zh) 2005-12-22 2013-05-01 Nippon Catalytic Chem Ind 吸水性樹脂組成物及其製造方法、吸收性物品
DE102005062929A1 (de) 2005-12-29 2007-07-05 Basf Ag Herstellung eines wasserabsorbierenden Harzes unter Einmischen eines wasserabsorbierenden Harzpulvers
EP1837348B9 (de) 2006-03-24 2020-01-08 Nippon Shokubai Co.,Ltd. Wasserabsorbierendes Harz und Verfahren zu seiner Herstellung
US8048624B1 (en) 2007-12-04 2011-11-01 Opx Biotechnologies, Inc. Compositions and methods for 3-hydroxypropionate bio-production from biomass
US9457048B2 (en) 2008-02-05 2016-10-04 Wellosophy Corporation Absorbent ingestible agents and associated methods of manufacture and use
JP5350361B2 (ja) 2008-03-13 2013-11-27 株式会社日本触媒 吸水性樹脂を主成分とする粒子状吸水剤の充填方法
JP5323053B2 (ja) 2008-03-28 2013-10-23 株式会社日本触媒 吸水性樹脂の製造方法
EP2338918B1 (de) 2008-09-16 2015-06-03 Nippon Shokubai Co., Ltd. Verfahren zur herstellung eines wasserabsorbers und verfahren zur erhöhung der flüssigkeitsdurchlässigkeit desselben
TWI500636B (zh) * 2008-10-07 2015-09-21 Evonik Degussa Gmbh 用於製造超吸性聚合物的方法
TWI454488B (zh) * 2008-10-07 2014-10-01 Evonik Degussa Gmbh 用於製造超吸性聚合物的方法
TWI500663B (zh) * 2008-10-07 2015-09-21 Evonik Degussa Gmbh 用於製造超吸性聚合物的連續方法
US8048942B2 (en) * 2008-10-08 2011-11-01 Evonik Stockhausen Gmbh Process for the production of a superabsorbent polymer
US8357766B2 (en) 2008-10-08 2013-01-22 Evonik Stockhausen Gmbh Continuous process for the production of a superabsorbent polymer
US8063121B2 (en) * 2008-10-08 2011-11-22 Evonik Stockhausen Gmbh Process for the production of a superabsorbent polymer
US7910688B2 (en) 2008-10-22 2011-03-22 Evonik Stockhausen Inc. Recycling superabsorbent polymer fines
US9175143B2 (en) 2009-03-31 2015-11-03 Nippon Shokubai Co., Ltd. Method for producing particulate water-absorbent resin
KR20110006771A (ko) 2009-07-15 2011-01-21 주식회사 엘지화학 고흡수성 수지의 제조 방법
US8513378B2 (en) 2009-09-16 2013-08-20 Nippon Shokubai Co., Ltd. Production method for water-absorbing resin powder
AU2010298004B2 (en) 2009-09-27 2016-02-25 Opx Biotechnologies, Inc. Method for producing 3-hydroxypropionic acid and other products
US8809027B1 (en) 2009-09-27 2014-08-19 Opx Biotechnologies, Inc. Genetically modified organisms for increased microbial production of 3-hydroxypropionic acid involving an oxaloacetate alpha-decarboxylase
CN105771945A (zh) 2009-09-29 2016-07-20 株式会社日本触媒 颗粒状吸水剂及其制造方法
EP2484702B2 (de) 2009-09-30 2021-11-10 Nippon Shokubai Co., Ltd. Wasserabsorbierendes harz auf basis von polyacrylsäuresalz und verfahren zu seiner herstellung
CN102573932B (zh) 2009-10-09 2016-01-20 巴斯夫欧洲公司 连续生产吸水聚合物颗粒的方法
US20110125118A1 (en) * 2009-11-20 2011-05-26 Opx Biotechnologies, Inc. Production of an Organic Acid and/or Related Chemicals
US9574019B2 (en) * 2009-11-23 2017-02-21 Basf Se Methods for producing water-absorbent foamed polymer particles
SG181879A1 (en) 2009-12-24 2012-07-30 Nippon Catalytic Chem Ind Water-absorbable polyacrylic acid resin powder, and process for production thereof
DE102010008163A1 (de) * 2010-02-16 2011-08-18 Evonik Stockhausen GmbH, 47805 Verfahren zur Rückführung von Polymerfeinteilchen
JP5632906B2 (ja) * 2010-03-12 2014-11-26 株式会社日本触媒 吸水性樹脂の製造方法
EP2371869A1 (de) 2010-03-30 2011-10-05 Evonik Stockhausen GmbH Verfahren zur Herstellung eines hochabsorbierenden Polymers
US8765906B2 (en) 2010-04-27 2014-07-01 Nippon Shokubai, Co., Ltd. Method for producing polyacrylic acid (salt) type water absorbent resin powder
WO2012102407A1 (ja) 2011-01-28 2012-08-02 株式会社日本触媒 ポリアクリル酸(塩)系吸水性樹脂粉末の製造方法
BR112013024288A2 (pt) 2011-03-22 2016-08-16 Opx Biotechnologies Inc método para a produção de ácido graxo ou derivado de ácido graxo, organismo geneticamente modificado e produto
US9580519B2 (en) 2011-04-20 2017-02-28 Nippon Shokubai Co., Ltd. Method and apparatus for producing polyacrylic acid (salt)-based water absorbent resin
EP2620465B2 (de) 2012-01-27 2018-03-28 Evonik Degussa GmbH Wärmebehandlung von wasserabsorbierenden Polymerpartikeln in einem Wirbelbett bei hoher Aufheizrate
US9644058B2 (en) 2012-08-01 2017-05-09 Nippon Shokubai Co. Ltd. Process for producing polyacrylic acid (salt)-based water absorbent resin
SG11201501013PA (en) 2012-08-10 2015-04-29 Opx Biotechnologies Inc Microorganisms and methods for the production of fatty acids and fatty acid derived products
EP2896645B1 (de) 2012-09-11 2019-12-11 Nippon Shokubai Co., Ltd. Verfahren zur herstellung eines wasserabsorptionsmittels auf basis von polyacrylsäule (polyacrylat) und wasserabsorptionsmittel
CN104619412B (zh) 2012-09-11 2017-07-11 株式会社日本触媒 聚丙烯酸(盐)系吸水剂的制造方法及其吸水剂
KR102196888B1 (ko) 2012-10-01 2020-12-30 가부시키가이샤 닛폰 쇼쿠바이 다원 금속 화합물을 포함하는 분진 저감제, 다원 금속 화합물을 포함하는 흡수제 및 그의 제조 방법
EP2905072B1 (de) 2012-10-03 2018-05-30 Nippon Shokubai Co., Ltd. Absorptionsmittel und herstellungsverfahren dafür
US10053597B2 (en) 2013-01-18 2018-08-21 Basf Se Acrylic dispersion-based coating compositions
KR102236466B1 (ko) 2013-01-29 2021-04-07 가부시키가이샤 닛폰 쇼쿠바이 흡수성 수지 재료 및 그의 제조 방법
US20150119601A1 (en) 2013-03-15 2015-04-30 Opx Biotechnologies, Inc. Monofunctional mcr + 3-hp dehydrogenase
CN105189757A (zh) 2013-03-15 2015-12-23 嘉吉公司 乙酰辅酶a羧化酶突变
WO2014145096A1 (en) 2013-03-15 2014-09-18 Cindy Hoppe Flash evaporation for production purification and recovery
US11408013B2 (en) 2013-07-19 2022-08-09 Cargill, Incorporated Microorganisms and methods for the production of fatty acids and fatty acid derived products
WO2015010103A2 (en) 2013-07-19 2015-01-22 Opx Biotechnologies, Inc. Microorganisms and methods for the production of fatty acids and fatty acid derived products
KR101718942B1 (ko) 2013-09-17 2017-03-22 주식회사 엘지화학 고흡수성 수지의 제조 방법
EP4252728A3 (de) 2013-12-20 2024-01-10 Nippon Shokubai Co., Ltd. Wasserabsorbierendes mittel auf der basis von polyacrylsäure und/oder einem salz davon
WO2015102463A1 (ko) * 2014-01-06 2015-07-09 한화케미칼 주식회사 고흡수성 수지 제조 방법
TW201533077A (zh) * 2014-01-06 2015-09-01 Hanwha Chemical Corp 用於製備超吸收聚合物之方法(一)
US9896529B2 (en) 2014-03-03 2018-02-20 Nippon Shokubai Co., Ltd. Method for producing polyacrylic acid (salt)-based water-absorbable resin
US9446271B1 (en) * 2014-07-14 2016-09-20 Nicholas A. Perez Fire and smoke prevention compositions and the processes of making them
EP2993228B1 (de) 2014-09-02 2019-10-09 Cargill, Incorporated Herstellung von fettsäureestern
JP6827953B2 (ja) * 2015-04-07 2021-02-10 ビーエイエスエフ・ソシエタス・エウロパエアBasf Se 超吸収体粒子の製造方法
CN105131314B (zh) * 2015-09-23 2018-04-03 浙江卫星石化股份有限公司 一种吸水树脂的制备方法
CN105295926B (zh) * 2015-10-30 2019-10-29 四川省农业科学院生物技术核技术研究所 一种抗结块的农用吸水树脂复合剂
DE102016100515A1 (de) 2016-01-13 2017-07-13 Basf Se Verfahren zur Herstellung eines geschäumten Polymers (gP)
KR102069830B1 (ko) 2016-02-03 2020-01-23 주식회사 엘지화학 초흡수성 응집체를 제조하는 방법
JP2020506702A (ja) 2017-02-02 2020-03-05 カーギル インコーポレイテッド C6−c10脂肪酸誘導体を生成する遺伝子組み換え細胞
KR102566942B1 (ko) * 2017-10-27 2023-08-14 주식회사 엘지화학 고흡수성 수지의 제조 방법
JP7231522B2 (ja) * 2019-09-06 2023-03-01 ユニ・チャーム株式会社 再生高吸水性ポリマーを製造する方法、再生高吸水性ポリマーを用いて高吸水性ポリマーを製造する方法、及び、再生高吸水性ポリマー
KR102541494B1 (ko) 2019-09-11 2023-06-08 주식회사 엘지화학 고흡수성 수지의 제조 방법

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4192727A (en) 1976-08-24 1980-03-11 Union Carbide Corporation Polyelectrolyte hydrogels and methods of their preparation
DE3429379A1 (de) * 1983-08-10 1985-02-28 Kao Corp., Tokio/Tokyo Verfahren zur herstellung eines hochreaktiven wasserabsorbierenden harzes
US4654039A (en) 1985-06-18 1987-03-31 The Proctor & Gamble Company Hydrogel-forming polymer compositions for use in absorbent structures
US4950692A (en) * 1988-12-19 1990-08-21 Nalco Chemical Company Method for reconstituting superabsorbent polymer fines
AU5086290A (en) * 1989-01-24 1990-08-24 Dow Chemical Company, The Aggregates or clusters of water-swellable polymers having increased hydration rate over unassociated water-swellable polymers
US4914066A (en) * 1989-02-24 1990-04-03 Hoechst Celanese Corporation Pellets of clay and superabsorbent polymer
US4985467A (en) * 1989-04-12 1991-01-15 Scotfoam Corporation Highly absorbent polyurethane foam
JPH0776244B2 (ja) 1989-07-19 1995-08-16 荒川化学工業株式会社 水可溶分の少ない吸水性樹脂の製造法
US5064582A (en) * 1989-09-15 1991-11-12 The Dow Chemical Company Process and apparatus for recycling aqueous fluid absorbents fines
PT95647A (pt) * 1989-10-25 1991-09-13 Hoechst Celanese Corp Processo para a producao de fibras de polimeros
US4990541A (en) * 1989-11-09 1991-02-05 Hoechst Celanese Corp. Water absorbent latex polymer foams
US5011864A (en) * 1989-11-09 1991-04-30 Hoechst Celanese Corp. Water absorbent latex polymer foams containing chitosan (chitin)
DE69021190T2 (de) * 1990-01-16 1995-12-07 Hoechst Celanese Corp Superabsorbierende, nassgelegte, nichtgewebte Faserbahn.
US4970267A (en) * 1990-03-08 1990-11-13 Nalco Chemical Company Reconstitution of superabsorbent polymer fines using persulfate salts
DE69124749T2 (de) * 1990-04-27 1997-06-12 Nippon Catalytic Chem Ind Verfahren zur Herstellung von salzbeständigem Harz
US5350799A (en) * 1990-05-31 1994-09-27 Hoechst Celanese Corporation Process for the conversion of fine superabsorbent polymer particles into larger particles
DE4021847C2 (de) * 1990-07-09 1994-09-08 Stockhausen Chem Fab Gmbh Verfahren zur Herstellung wasserquellbarer Produkte unter Verwendung von Feinstanteilen wasserquellbarer Polymerer

Also Published As

Publication number Publication date
EP0513780B1 (de) 1998-12-30
CA2068859A1 (en) 1992-11-17
US5342899A (en) 1994-08-30
JP3155006B2 (ja) 2001-04-09
EP0513780A1 (de) 1992-11-19
WO1992020723A1 (en) 1992-11-26
DE69228019D1 (de) 1999-02-11
MX9202309A (es) 1992-11-01
DE69228019T3 (de) 2007-10-11
EP0513780B2 (de) 2007-03-14
JPH06510551A (ja) 1994-11-24
DE69228019T2 (de) 1999-08-26
KR100231077B1 (ko) 1999-11-15

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