RU2227753C2 - Кислотные полисахариды со свойствами суперабсорбента - Google Patents
Кислотные полисахариды со свойствами суперабсорбента Download PDFInfo
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- RU2227753C2 RU2227753C2 RU2001119445/15A RU2001119445A RU2227753C2 RU 2227753 C2 RU2227753 C2 RU 2227753C2 RU 2001119445/15 A RU2001119445/15 A RU 2001119445/15A RU 2001119445 A RU2001119445 A RU 2001119445A RU 2227753 C2 RU2227753 C2 RU 2227753C2
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- polysaccharide
- acid groups
- superabsorbent
- properties
- crosslinking
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- 229920001282 polysaccharide Polymers 0.000 title claims abstract 24
- 239000005017 polysaccharide Substances 0.000 title claims abstract 24
- 150000004676 glycans Chemical class 0.000 title claims abstract 23
- 239000002253 acid Substances 0.000 title claims abstract 9
- 238000004132 cross linking Methods 0.000 claims abstract 5
- 238000001035 drying Methods 0.000 claims abstract 4
- 239000003431 cross linking reagent Substances 0.000 claims abstract 3
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims abstract 2
- 239000001768 carboxy methyl cellulose Substances 0.000 claims abstract 2
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims abstract 2
- 239000008112 carboxymethyl-cellulose Substances 0.000 claims abstract 2
- 238000000034 method Methods 0.000 claims 13
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims 2
- -1 carboxymethyl polysaccharide Chemical class 0.000 claims 2
- 239000003960 organic solvent Substances 0.000 claims 2
- 229920002472 Starch Polymers 0.000 claims 1
- 239000002250 absorbent Substances 0.000 claims 1
- 230000002745 absorbent Effects 0.000 claims 1
- 150000007513 acids Chemical class 0.000 claims 1
- 235000010233 benzoic acid Nutrition 0.000 claims 1
- 150000001559 benzoic acids Chemical class 0.000 claims 1
- 150000001720 carbohydrates Chemical group 0.000 claims 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical class OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 claims 1
- 150000001875 compounds Chemical class 0.000 claims 1
- 235000011187 glycerol Nutrition 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 claims 1
- 125000004029 hydroxymethyl group Chemical group [H]OC([H])([H])* 0.000 claims 1
- 150000002576 ketones Chemical class 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 claims 1
- 125000001483 monosaccharide substituent group Chemical group 0.000 claims 1
- 230000003647 oxidation Effects 0.000 claims 1
- 238000007254 oxidation reaction Methods 0.000 claims 1
- ABLZXFCXXLZCGV-UHFFFAOYSA-N phosphonic acid group Chemical group P(O)(O)=O ABLZXFCXXLZCGV-UHFFFAOYSA-N 0.000 claims 1
- 239000004014 plasticizer Substances 0.000 claims 1
- 239000008107 starch Substances 0.000 claims 1
- 235000019698 starch Nutrition 0.000 claims 1
- 125000000542 sulfonic acid group Chemical group 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 239000002594 sorbent Substances 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B15/00—Preparation of other cellulose derivatives or modified cellulose, e.g. complexes
- C08B15/005—Crosslinking of cellulose derivatives
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS 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
- A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
- A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
- A61L15/22—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing macromolecular materials
- A61L15/28—Polysaccharides or their derivatives
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS 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
- A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
- A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
- A61L15/42—Use of materials characterised by their function or physical properties
- A61L15/60—Liquid-swellable gel-forming materials, e.g. super-absorbents
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S526/00—Synthetic resins or natural rubbers -- part of the class 520 series
- Y10S526/903—Monomer polymerized in presence of transition metal containing catalyst and hydrocarbon additive affecting polymer properties of catalyst activity
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- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Veterinary Medicine (AREA)
- Epidemiology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Hematology (AREA)
- Biochemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Absorbent Articles And Supports Therefor (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
Изобретение относится к материалам, поглощаемым неприятные запахи. Осуществляют стадии: (а) сшивание, по меньшей мере, одного полисахарида, содержащего кислотные группы, такого как карбоксиметилцеллюлоза и/или 6-карбоксикрахмал, сшивающим агентом с получением геля, (b) доведение рН полисахарида до величины между 3,5 и 5,5, (с) измельчение подкисленного геля полисахарида и (d) высушивание измельченного полисахарида при повышенной температуре. Производное полисахарида со свойствами суперабсорбента, получаемое данным способом, характеризуется величиной рН ниже 5. Адсорбирующее изделие, содержащее полисахарид со свойствами суперабсорбента. Изобретение позволяет реализовать указанное назначение. 3 с. и 12 з.п.ф-лы, 5 табл.
Description
Текст описания в факсимильном виде (см. графическую часть).
Claims (18)
1. Способ получения производного полисахарида со свойствами суперабсорбента, включающий стадии: (а) сшивание по меньшей мере одного полисахарида, содержащего кислотные группы, сшивающим агентом для получения геля; (b) установление величины рН полисахарида в диапазоне от 3,5 до 5,5; (с) измельчение подкисленного геля полисахарида и (d) высушивание измельченного полисахарида при повышенной температуре.
2. Способ по п.1, в котором полисахарид, содержащий кислотные группы, включает карбоксиметилцеллюлозу, дополнительно включает стадию контактирования сшитого полисахарида с органическим растворителем, который по меньшей мере частично может быть смешан с водой, между стадией (b) и стадией (с).
3. Способ по п.2, в котором упомянутым органическим растворителем является низший спирт, смешиваемый с водой кетон или смешиваемый с водой простой эфир, в особенности метанол или этанол.
4. Способ по п.1, в котором полисахаридом, содержащим кислотные группы, является карбоксиметиловый полисахарид, дополнительно содержащий карбоксильные группы, получаемые в результате окисления гидроксиметильных и гидроксиметиленовых групп сахарида, или группы фосфоновой или сульфоновой кислоты.
5. Способ по п.1, в котором полисахарид, содержащий кислотные группы, включает 6-карбоксиполисахарид, в особенности 6-карбоксикрахмал, возможно смешанный с карбоксиалкилированным полисахаридом.
6. Способ по одному из пп.1-5, в котором полисахарид, содержащий кислотные группы, содержит 0,3-3,0 карбоксильные группы на одно звено моносахарида.
7. Способ по одному из пп.1-6, в котором упомянутым сшивающим агентом является бисэпоксисоединение, а полисахарид перед стадией (а) подкисляют.
8. Способ по одному из пп.1-7, в котором упомянутую стадию сшивания проводят при температуре по меньшей мере 100°С, предпочтительно между 120 и 180°С и/или при концентрации полисахарида между 25 и 75 мас.%.
9. Способ по п.8, в котором в ходе упомянутой стадии сшивания используют пластификатор, такой, как глицерин.
10. Способ по одному из предшествующих пунктов, в котором стадию сушки (d) проводят с использованием псевдоожиженного слоя при температуре между 50 и 130°С.
11. Способ по одному из предшествующих пунктов, в котором за упомянутой стадией сушки (d) следует тепловая обработка при температуре между 80 и 150°С.
12. Способ по одному из предшествующих пунктов, в котором после стадии (с) или после стадии (d) проводят дополнительную стадию поверхностного сшивания.
13. Производное полисахарида со свойствами суперабсорбента, получаемое по способу по одному из предшествующих пунктов и имеющее величину рН ниже 5.
14. Полисахарид со свойствами суперабсорбента по п.13, также содержащий кислоту, выбираемую из органических двухосновных карбоновых или поликарбоновых кислот, гидроксикарбоновых кислот и бензойных кислот.
15. Абсорбирующее изделие, содержащее полисахарид со свойствами суперабсорбента по п.13 или 14.
Приоритет по пунктам:
16.12.1998 по п.1 (кроме значения рН от 4,9 до 5,5) на стадии (b), пп.2-4, 6, 7, 10-15;
23.04.1999 по п.5;
15.06.1999 по п.1 диапазон рН 4,9 - 5,5, по пп.8 и 9.
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP98204273 | 1998-12-16 | ||
EP99201286 | 1999-04-23 | ||
EP99201286.4 | 1999-06-15 | ||
EP99201915 | 1999-06-15 | ||
EP98204273.1 | 1999-06-15 | ||
EP99201915.8 | 1999-06-15 |
Publications (2)
Publication Number | Publication Date |
---|---|
RU2001119445A RU2001119445A (ru) | 2003-04-20 |
RU2227753C2 true RU2227753C2 (ru) | 2004-04-27 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
RU2001119445/15A RU2227753C2 (ru) | 1998-12-16 | 1999-12-16 | Кислотные полисахариды со свойствами суперабсорбента |
Country Status (16)
Country | Link |
---|---|
US (2) | US6765042B1 (ru) |
EP (1) | EP1140229B1 (ru) |
JP (1) | JP2002532573A (ru) |
KR (1) | KR20010105311A (ru) |
AT (1) | ATE483480T1 (ru) |
AU (1) | AU767859B2 (ru) |
BR (1) | BR9916235A (ru) |
CA (1) | CA2356849C (ru) |
DE (1) | DE69942840D1 (ru) |
MX (1) | MXPA01006098A (ru) |
NZ (1) | NZ512254A (ru) |
PL (1) | PL348821A1 (ru) |
RU (1) | RU2227753C2 (ru) |
SK (1) | SK7982001A3 (ru) |
TN (1) | TNSN99243A1 (ru) |
WO (1) | WO2000035504A1 (ru) |
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-
1999
- 1999-12-16 EP EP99962568A patent/EP1140229B1/en not_active Revoked
- 1999-12-16 US US09/868,139 patent/US6765042B1/en not_active Expired - Fee Related
- 1999-12-16 DE DE69942840T patent/DE69942840D1/de not_active Expired - Lifetime
- 1999-12-16 WO PCT/NL1999/000776 patent/WO2000035504A1/en not_active Application Discontinuation
- 1999-12-16 AU AU18975/00A patent/AU767859B2/en not_active Ceased
- 1999-12-16 RU RU2001119445/15A patent/RU2227753C2/ru not_active IP Right Cessation
- 1999-12-16 KR KR1020017007445A patent/KR20010105311A/ko not_active Application Discontinuation
- 1999-12-16 SK SK798-2001A patent/SK7982001A3/sk unknown
- 1999-12-16 JP JP2000587822A patent/JP2002532573A/ja active Pending
- 1999-12-16 TN TNTNSN99243A patent/TNSN99243A1/fr unknown
- 1999-12-16 MX MXPA01006098A patent/MXPA01006098A/es unknown
- 1999-12-16 AT AT99962568T patent/ATE483480T1/de not_active IP Right Cessation
- 1999-12-16 NZ NZ512254A patent/NZ512254A/en unknown
- 1999-12-16 BR BR9916235-0A patent/BR9916235A/pt not_active IP Right Cessation
- 1999-12-16 CA CA002356849A patent/CA2356849C/en not_active Expired - Fee Related
- 1999-12-16 PL PL99348821A patent/PL348821A1/xx unknown
-
2004
- 2004-06-28 US US10/878,459 patent/US20040236016A1/en not_active Abandoned
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Publication number | Publication date |
---|---|
CA2356849C (en) | 2008-06-03 |
TNSN99243A1 (fr) | 2001-12-31 |
EP1140229A1 (en) | 2001-10-10 |
ATE483480T1 (de) | 2010-10-15 |
PL348821A1 (en) | 2002-06-17 |
DE69942840D1 (de) | 2010-11-18 |
KR20010105311A (ko) | 2001-11-28 |
EP1140229B1 (en) | 2010-10-06 |
WO2000035504A1 (en) | 2000-06-22 |
US20040236016A1 (en) | 2004-11-25 |
AU1897500A (en) | 2000-07-03 |
BR9916235A (pt) | 2001-09-04 |
NZ512254A (en) | 2003-11-28 |
SK7982001A3 (en) | 2002-02-05 |
CA2356849A1 (en) | 2000-06-22 |
JP2002532573A (ja) | 2002-10-02 |
AU767859B2 (en) | 2003-11-27 |
MXPA01006098A (es) | 2002-03-27 |
US6765042B1 (en) | 2004-07-20 |
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