ZA200607943B - Method for secondary crosslinking of water-absorbent polymers - Google Patents

Method for secondary crosslinking of water-absorbent polymers Download PDF

Info

Publication number: ZA200607943B
Authority: ZA; South Africa
Prior art keywords: weight; polymer; base polymer; solution; less
Prior art date: 2004-02-24

Application number

ZA200607943A

Other languages

English (en)

Inventor

Ulrich Riegel

Thomas Daniel

Matthias Weismantel

Mark Elliott

Dieter Hermeling

Original Assignee

Basf Ag

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.)

2004-02-24

Filing date

2006-09-22

Publication date

2008-06-25

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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=34853736&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ZA200607943(B) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.

2006-09-22 Application filed by Basf Ag filed Critical Basf Ag

2008-06-25 Publication of ZA200607943B publication Critical patent/ZA200607943B/en

Links

229920000642 polymer Polymers 0.000 title claims abstract description 74
238000000034 method Methods 0.000 title claims abstract description 61
238000004132 cross linking Methods 0.000 title description 6
239000002250 absorbent Substances 0.000 title description 2
239000000243 solution Substances 0.000 claims abstract description 64
229920005601 base polymer Polymers 0.000 claims abstract description 48
239000007864 aqueous solution Substances 0.000 claims abstract description 24
FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims abstract description 23
150000001768 cations Chemical class 0.000 claims abstract description 20
239000000178 monomer Substances 0.000 claims abstract description 20
239000011780 sodium chloride Substances 0.000 claims abstract description 16
239000002245 particle Substances 0.000 claims description 22
239000006184 cosolvent Substances 0.000 claims description 12
IZXIZTKNFFYFOF-UHFFFAOYSA-N 2-Oxazolidone Chemical compound O=C1NCCO1 IZXIZTKNFFYFOF-UHFFFAOYSA-N 0.000 claims description 7
229920005862 polyol Polymers 0.000 claims description 6
150000003077 polyols Chemical class 0.000 claims description 6
JNYAEWCLZODPBN-JGWLITMVSA-N (2r,3r,4s)-2-[(1r)-1,2-dihydroxyethyl]oxolane-3,4-diol Chemical group OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O JNYAEWCLZODPBN-JGWLITMVSA-N 0.000 claims description 4
230000014759 maintenance of location Effects 0.000 claims description 4
239000006286 aqueous extract Substances 0.000 claims description 3
XZIIFPSPUDAGJM-UHFFFAOYSA-N 6-chloro-2-n,2-n-diethylpyrimidine-2,4-diamine Chemical compound CCN(CC)C1=NC(N)=CC(Cl)=N1 XZIIFPSPUDAGJM-UHFFFAOYSA-N 0.000 claims description 2
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BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 1
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BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
229920002785 Croscarmellose sodium Polymers 0.000 description 1
BRLQWZUYTZBJKN-UHFFFAOYSA-N Epichlorohydrin Chemical compound ClCC1CO1 BRLQWZUYTZBJKN-UHFFFAOYSA-N 0.000 description 1
KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 1
UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
JVTAAEKCZFNVCJ-UHFFFAOYSA-M Lactate Chemical compound CC(O)C([O-])=O JVTAAEKCZFNVCJ-UHFFFAOYSA-M 0.000 description 1
FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
229910002651 NO3 Inorganic materials 0.000 description 1
NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
238000013494 PH determination Methods 0.000 description 1
229910019142 PO4 Inorganic materials 0.000 description 1
NBIIXXVUZAFLBC-UHFFFAOYSA-L Phosphate ion(2-) Chemical compound OP([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-L 0.000 description 1
229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
229920000805 Polyaspartic acid Polymers 0.000 description 1
239000004698 Polyethylene Substances 0.000 description 1
229920002873 Polyethylenimine Polymers 0.000 description 1
OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 description 1
RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
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KWKOTMDQAMKXQF-UHFFFAOYSA-N [2-methyl-2-(prop-2-enoylamino)propyl]phosphonic acid Chemical compound OP(=O)(O)CC(C)(C)NC(=O)C=C KWKOTMDQAMKXQF-UHFFFAOYSA-N 0.000 description 1
229940048053 acrylate Drugs 0.000 description 1
150000001299 aldehydes Chemical class 0.000 description 1
125000001931 aliphatic group Chemical group 0.000 description 1
150000008044 alkali metal hydroxides Chemical class 0.000 description 1
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125000005370 alkoxysilyl group Chemical group 0.000 description 1
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238000004458 analytical method Methods 0.000 description 1
150000008064 anhydrides Chemical class 0.000 description 1
239000008346 aqueous phase Substances 0.000 description 1
239000012298 atmosphere Substances 0.000 description 1
WPKYZIPODULRBM-UHFFFAOYSA-N azane;prop-2-enoic acid Chemical compound N.OC(=O)C=C WPKYZIPODULRBM-UHFFFAOYSA-N 0.000 description 1
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238000010533 azeotropic distillation Methods 0.000 description 1
125000000751 azo group Chemical group [*]N=N[*] 0.000 description 1
235000019400 benzoyl peroxide Nutrition 0.000 description 1
125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 description 1
JQRRFDWXQOQICD-UHFFFAOYSA-N biphenylen-1-ylboronic acid Chemical compound C12=CC=CC=C2C2=C1C=CC=C2B(O)O JQRRFDWXQOQICD-UHFFFAOYSA-N 0.000 description 1
ZPOLOEWJWXZUSP-WAYWQWQTSA-N bis(prop-2-enyl) (z)-but-2-enedioate Chemical compound C=CCOC(=O)\C=C/C(=O)OCC=C ZPOLOEWJWXZUSP-WAYWQWQTSA-N 0.000 description 1
238000007664 blowing Methods 0.000 description 1
CDQSJQSWAWPGKG-UHFFFAOYSA-N butane-1,1-diol Chemical compound CCCC(O)O CDQSJQSWAWPGKG-UHFFFAOYSA-N 0.000 description 1
229910052792 caesium Inorganic materials 0.000 description 1
229910052791 calcium Inorganic materials 0.000 description 1
239000011575 calcium Substances 0.000 description 1
150000007942 carboxylates Chemical class 0.000 description 1
150000001733 carboxylic acid esters Chemical class 0.000 description 1
239000003638 chemical reducing agent Substances 0.000 description 1
229910052804 chromium Inorganic materials 0.000 description 1
239000011651 chromium Substances 0.000 description 1
ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 1
NBIIXXVUZAFLBC-UHFFFAOYSA-M dihydrogenphosphate Chemical compound OP(O)([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-M 0.000 description 1
230000003292 diminished effect Effects 0.000 description 1
150000002009 diols Chemical class 0.000 description 1
SZXQTJUDPRGNJN-UHFFFAOYSA-N dipropylene glycol Chemical compound OCCCOCCCO SZXQTJUDPRGNJN-UHFFFAOYSA-N 0.000 description 1
230000008034 disappearance Effects 0.000 description 1
230000005670 electromagnetic radiation Effects 0.000 description 1
238000005516 engineering process Methods 0.000 description 1
238000005886 esterification reaction Methods 0.000 description 1
UYMKPFRHYYNDTL-UHFFFAOYSA-N ethenamine Chemical class NC=C UYMKPFRHYYNDTL-UHFFFAOYSA-N 0.000 description 1
238000011156 evaluation Methods 0.000 description 1
239000000284 extract Substances 0.000 description 1
238000013213 extrapolation Methods 0.000 description 1
238000005194 fractionation Methods 0.000 description 1
239000001530 fumaric acid Substances 0.000 description 1
238000010413 gardening Methods 0.000 description 1
239000007789 gas Substances 0.000 description 1
150000004676 glycans Chemical class 0.000 description 1
238000000227 grinding Methods 0.000 description 1
238000010438 heat treatment Methods 0.000 description 1
238000000265 homogenisation Methods 0.000 description 1
QAOWNCQODCNURD-UHFFFAOYSA-M hydrogensulfate Chemical compound OS([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-M 0.000 description 1
229920001477 hydrophilic polymer Polymers 0.000 description 1
230000002706 hydrostatic effect Effects 0.000 description 1
125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
125000002768 hydroxyalkyl group Chemical group 0.000 description 1
125000000555 isopropenyl group Chemical group [H]\C([H])=C(\*)C([H])([H])[H] 0.000 description 1
125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
150000002576 ketones Chemical class 0.000 description 1
238000012417 linear regression Methods 0.000 description 1
229910052749 magnesium Inorganic materials 0.000 description 1
239000011777 magnesium Substances 0.000 description 1
VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
239000011976 maleic acid Substances 0.000 description 1
WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
239000011159 matrix material Substances 0.000 description 1
229910044991 metal oxide Inorganic materials 0.000 description 1
150000004706 metal oxides Chemical class 0.000 description 1
LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 description 1
ZIUHHBKFKCYYJD-UHFFFAOYSA-N n,n'-methylenebisacrylamide Chemical compound C=CC(=O)NCNC(=O)C=C ZIUHHBKFKCYYJD-UHFFFAOYSA-N 0.000 description 1
ZQXSMRAEXCEDJD-UHFFFAOYSA-N n-ethenylformamide Chemical compound C=CNC=O ZQXSMRAEXCEDJD-UHFFFAOYSA-N 0.000 description 1
125000004123 n-propyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
229910052757 nitrogen Inorganic materials 0.000 description 1
229920001542 oligosaccharide Polymers 0.000 description 1
150000002482 oligosaccharides Chemical class 0.000 description 1
150000001451 organic peroxides Chemical class 0.000 description 1
125000001037 p-tolyl group Chemical group [H]C1=C([H])C(=C([H])C([H])=C1*)C([H])([H])[H] 0.000 description 1
WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 1
125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
239000010452 phosphate Substances 0.000 description 1
229910052697 platinum Inorganic materials 0.000 description 1
229920000962 poly(amidoamine) Polymers 0.000 description 1
229920000768 polyamine Polymers 0.000 description 1
108010064470 polyaspartate Proteins 0.000 description 1
229920000728 polyester Polymers 0.000 description 1
229920000573 polyethylene Polymers 0.000 description 1
229920000223 polyglycerol Polymers 0.000 description 1
239000003505 polymerization initiator Substances 0.000 description 1
229920000193 polymethacrylate Polymers 0.000 description 1
229920001282 polysaccharide Polymers 0.000 description 1
239000005017 polysaccharide Substances 0.000 description 1
229920000166 polytrimethylene carbonate Polymers 0.000 description 1
239000011148 porous material Substances 0.000 description 1
238000003918 potentiometric titration Methods 0.000 description 1
125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
230000002250 progressing effect Effects 0.000 description 1
RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 1
230000001681 protective effect Effects 0.000 description 1
238000010526 radical polymerization reaction Methods 0.000 description 1
230000000717 retained effect Effects 0.000 description 1
239000012266 salt solution Substances 0.000 description 1
229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
235000017557 sodium bicarbonate Nutrition 0.000 description 1
229910000029 sodium carbonate Inorganic materials 0.000 description 1
235000010267 sodium hydrogen sulphite Nutrition 0.000 description 1
239000002904 solvent Substances 0.000 description 1
238000003756 stirring Methods 0.000 description 1
229910052712 strontium Inorganic materials 0.000 description 1
CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 1
239000000126 substance Substances 0.000 description 1
150000005846 sugar alcohols Polymers 0.000 description 1
BUUPQKDIAURBJP-UHFFFAOYSA-N sulfinic acid Chemical compound OS=O BUUPQKDIAURBJP-UHFFFAOYSA-N 0.000 description 1
150000003455 sulfinic acids Chemical class 0.000 description 1
125000000020 sulfo group Chemical group O=S(=O)([*])O[H] 0.000 description 1
125000000472 sulfonyl group Chemical group *S(*)(=O)=O 0.000 description 1
239000006228 supernatant Substances 0.000 description 1
239000010936 titanium Substances 0.000 description 1
229910052719 titanium Inorganic materials 0.000 description 1
VPYJNCGUESNPMV-UHFFFAOYSA-N triallylamine Chemical compound C=CCN(CC=C)CC=C VPYJNCGUESNPMV-UHFFFAOYSA-N 0.000 description 1
ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 1
125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
NLVXSWCKKBEXTG-UHFFFAOYSA-N vinylsulfonic acid Chemical compound OS(=O)(=O)C=C NLVXSWCKKBEXTG-UHFFFAOYSA-N 0.000 description 1
239000011701 zinc Substances 0.000 description 1
229910052725 zinc Inorganic materials 0.000 description 1
229910052726 zirconium Inorganic materials 0.000 description 1

Classifications

- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/24—Crosslinking, e.g. vulcanising, of macromolecules
- C08J3/245—Differential crosslinking of one polymer with one crosslinking type, e.g. surface crosslinking
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F2/00—Processes of polymerisation
- C08F2/12—Polymerisation in non-solvents
- C08F2/16—Aqueous medium
- C08F2/22—Emulsion polymerisation
- C08F2/24—Emulsion polymerisation with the aid of emulsifying agents
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F20/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride, ester, amide, imide or nitrile thereof
- C08F20/02—Monocarboxylic acids having less than ten carbon atoms, Derivatives thereof
- C08F20/04—Acids, Metal salts or ammonium salts thereof
- C08F20/06—Acrylic acid; Methacrylic acid; Metal salts or ammonium salts thereof
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/04—Acids; Metal salts or ammonium salts thereof
- C08F220/06—Acrylic acid; Methacrylic acid; Metal salts or ammonium salts thereof
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2300/00—Characterised by the use of unspecified polymers
- C08J2300/14—Water soluble or water swellable polymers, e.g. aqueous gels

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Chemical & Material Sciences (AREA)
Health & Medical Sciences (AREA)
Chemical Kinetics & Catalysis (AREA)
Medicinal Chemistry (AREA)
Polymers & Plastics (AREA)
Organic Chemistry (AREA)
Processes Of Treating Macromolecular Substances (AREA)
Absorbent Articles And Supports Therefor (AREA)
Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Polymerisation Methods In General (AREA)

ZA200607943A 2004-02-24 2006-09-22 Method for secondary crosslinking of water-absorbent polymers ZA200607943B (en)

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DE102004009438A DE102004009438A1 (de)	2004-02-24	2004-02-24	Verfahren zur Oberflächennachvernetzung wasserabsorbierender Polymere

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EP (1)	EP1720934B2 (zh)
JP (1)	JP4395531B2 (zh)
KR (1)	KR101096371B1 (zh)
CN (1)	CN100584877C (zh)
AT (1)	ATE506393T1 (zh)
BR (1)	BRPI0507793B1 (zh)
DE (2)	DE102004009438A1 (zh)
TW (1)	TWI357913B (zh)
WO (1)	WO2005080479A1 (zh)
ZA (1)	ZA200607943B (zh)

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DE102004051242A1 (de)	2004-10-20	2006-05-04	Basf Ag	Feinteilige wasserabsorbierende Polymerpartikel mit hoher Flüssigkeitstransport- und Absorptionsleistung
JP5591467B2 (ja) *	2005-09-30	2014-09-17	株式会社日本触媒	水性液吸収剤およびその製造方法
US20080281049A1 (en) *	2005-12-05	2008-11-13	Basf Se	Process for Preparing Water-Absorbing Polymers with High Absorption Capacity and High Permeability
US20090012486A1 (en) *	2005-12-28	2009-01-08	Basf Se	Process for Production of a Water-Absorbing Material
US20090239071A1 (en) *	2006-07-19	2009-09-24	Uwe Stueven	Method for Producing Water-Absorbent Polymer Particles with a Higher Permeability by Polymerising Droplets of a Monomer Solution
BRPI0714445B8 (pt) *	2006-07-19	2021-06-22	Basf Se	processo para preparar partículas poliméricas absorvedoras de água, partículas poliméricas absorvedoras de água, uso das partículas poliméricas, e, artigo de higiene
US8202957B2 (en)	2006-07-19	2012-06-19	Basf Se	Method for producing post-cured water-absorbent polymer particles with a higher absorption by polymerising droplets of a monomer solution
EP2073943B2 (de) *	2006-09-25	2020-09-02	Basf Se	Verfahren zum klassieren wasserabsorbierender polymerpartikel
WO2008037675A1 (de)	2006-09-25	2008-04-03	Basf Se	Verfahren zum klassieren wasserabsorbierender polymerpartikel
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WO2010057823A1 (de) *	2008-11-21	2010-05-27	Basf Se	Gemisch von oberflächennachvernetzten superabsorbern mit unterschiedlicher oberflächennachvernetzung
WO2010124954A1 (de) *	2009-04-30	2010-11-04	Basf Se	Verfahren zur abtrennung metallischer verunreinigungen
EP2471846B1 (en)	2009-08-27	2016-12-21	Nippon Shokubai Co., Ltd.	Polyacrylic acid (salt) water absorbent resin and method for producing same
US10066064B2 (en)	2009-10-09	2018-09-04	Basf Se	Process for remoisturizing surface-postcrosslinked water-absorbing polymer particles
JP5850841B2 (ja)	2009-10-09	2016-02-03	ビーエーエスエフソシエタス・ヨーロピアＢａｓｆＳｅ	表面後架橋された吸水性ポリマー粒子の後給湿方法
JP5605855B2 (ja)	2010-02-10	2014-10-15	株式会社日本触媒	吸水性樹脂粉末の製造方法
WO2011111856A1 (ja)	2010-03-12	2011-09-15	株式会社日本触媒	吸水性樹脂の製造方法
EP2565211B1 (en) *	2010-04-26	2017-10-25	Nippon Shokubai Co., Ltd.	Polyacrylic acid (salt), polyacrylic acid (salt)-based water-absorbing resin, and process for producing same
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2004
- 2004-02-24 DE DE102004009438A patent/DE102004009438A1/de not_active Withdrawn
2005
- 2005-02-14 TW TW094104233A patent/TWI357913B/zh not_active IP Right Cessation
- 2005-02-18 AT AT05715387T patent/ATE506393T1/de active
- 2005-02-18 BR BRPI0507793A patent/BRPI0507793B1/pt active IP Right Grant
- 2005-02-18 JP JP2007500113A patent/JP4395531B2/ja not_active Expired - Lifetime
- 2005-02-18 KR KR1020067019589A patent/KR101096371B1/ko not_active Expired - Lifetime
- 2005-02-18 DE DE502005011278T patent/DE502005011278D1/de not_active Expired - Lifetime
- 2005-02-18 CN CN200580005988A patent/CN100584877C/zh not_active Expired - Lifetime
- 2005-02-18 WO PCT/EP2005/001673 patent/WO2005080479A1/de active Application Filing
- 2005-02-18 EP EP05715387.6A patent/EP1720934B2/de not_active Expired - Lifetime
- 2005-02-18 US US10/588,671 patent/US7981969B2/en active Active
2006
- 2006-09-22 ZA ZA200607943A patent/ZA200607943B/en unknown
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Also Published As

Publication number	Publication date
EP1720934B1 (de)	2011-04-20
BRPI0507793A (pt)	2007-07-17
TWI357913B (en)	2012-02-11
JP2007523254A (ja)	2007-08-16
KR101096371B1 (ko)	2011-12-20
US7981969B2 (en)	2011-07-19
DE102004009438A1 (de)	2005-09-15
US20110257341A1 (en)	2011-10-20
EP1720934A1 (de)	2006-11-15
CN100584877C (zh)	2010-01-27
CN1922243A (zh)	2007-02-28
ATE506393T1 (de)	2011-05-15
WO2005080479A1 (de)	2005-09-01
EP1720934B2 (de)	2018-04-11
TW200602391A (en)	2006-01-16
US8258223B2 (en)	2012-09-04
US20070161759A1 (en)	2007-07-12
DE502005011278D1 (de)	2011-06-01
BRPI0507793B1 (pt)	2016-07-26
JP4395531B2 (ja)	2010-01-13
KR20070032299A (ko)	2007-03-21

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