WO1989007633A1 - Compositions polymeres absorbantes - Google Patents

Compositions polymeres absorbantes Download PDF

Info

Publication number
WO1989007633A1
WO1989007633A1 PCT/AU1989/000067 AU8900067W WO8907633A1 WO 1989007633 A1 WO1989007633 A1 WO 1989007633A1 AU 8900067 W AU8900067 W AU 8900067W WO 8907633 A1 WO8907633 A1 WO 8907633A1
Authority
WO
WIPO (PCT)
Prior art keywords
absorbent polymer
sodium
weight
meta
polymer according
Prior art date
Application number
PCT/AU1989/000067
Other languages
English (en)
Inventor
John Kenneth Bethune
Original Assignee
John Kenneth Bethune
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
Application filed by John Kenneth Bethune filed Critical John Kenneth Bethune
Publication of WO1989007633A1 publication Critical patent/WO1989007633A1/fr

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/34—Silicon-containing compounds
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
    • A23L3/34—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals
    • A23L3/3409—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals in the form of gases, e.g. fumigation; Compositions or apparatus therefor
    • A23L3/3418—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals in the form of gases, e.g. fumigation; Compositions or apparatus therefor in a controlled atmosphere, e.g. partial vacuum, comprising only CO2, N2, O2 or H2O
    • A23L3/3427—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals in the form of gases, e.g. fumigation; Compositions or apparatus therefor in a controlled atmosphere, e.g. partial vacuum, comprising only CO2, N2, O2 or H2O in which an absorbent is placed or used
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
    • A23L3/36—Freezing; Subsequent thawing; Cooling
    • A23L3/37—Freezing; Subsequent thawing; Cooling with addition of or treatment with chemicals
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/32—Phosphorus-containing compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
    • C08K5/098—Metal salts of carboxylic acids
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/55—Boron-containing compounds

Definitions

  • the invention relates to absorbent polymers and to improvements in their application as low temperature superabsorbents for fluids.
  • Absorbent copolymers may be conveniently stated as acrylic acid
  • absorbent materials are polymers in which hydrophilic groups constitute at least 25 percent and up to 75 percent of the molecular structure and in which the polymeric network is usually but not necessarily lightly cross-linked.
  • Synthetic absorbent polymers are modified natural polymers, e.g., modified polysaccharides, generally water-insoluble but water-swellable. Natural gums may also be suitable provided they exhibit the requisite properties. It is understood from Australian Patent Application No. 567728 that many of the suitable materials are reported to have an average molecular weight per cross-linkage in the range of from about 25,000 to about 300,000.
  • the particularly preferred polymers of the present invention have an acrylate group in their molecular structure and are referred to as polyacrylates. They may be completely synthetic acrylate polymers or acrylate modified polysaccharides. For example, acrylate modified starch or acrylate modified cellulose. Other preferred polymers contain an acrylamide, acrylic acid or acrylic ester group.
  • Polyacrylamides are well known as water retention aids which have been used in agriculture to reduce water loss from the roots of plants. The basic principle being that the polyacrylamide absorbs water but releases same after predetermined periods. Absorbents of this type are commercially available from Allied Colloids under the trade mark ALCOSORB.
  • Polyacrylates are similarly well known as water retention aids and are impregnated in nappies to absorb urine from babies, whilst maintaining a relatively dry surface to the polymer.
  • Such absorbent polymers have recently been applied to treating wet particulate masses as disclosed in Australian Patent Application 54256/86. These polymers are mixed with wet particulate masses such as mineral ore to absorb water so that upon the lowering of the temperature of the mass below 0° the mass remains friable. Similarly the addition of such polymer i said to render some particular masses friable such as cake or slurry which are not normally friable.
  • the principle underlyin this use of the absorbent is to separate the moisture from the defined area and thus preventing free moisture acting as a binder at low temperatures. It is believed this absorbent is commercially available from Allied Colloids Ltd. under the trad marks SALSORB.
  • Polyacrylate absorbents have ⁇ tlso been commercially available as internally cross linked starch grafted polyacrylate made from starch and acrylic acid (trade mark SANWET from Sanyo Chemicals), as potassium salt derivatives of acrylate (trade mark ARASORB from Arakawa) and as sodium polyacrylate (trade mark LUQUASORB HC-9797 from BASF) . These absorbents are included when polyacrylate absorbents are referred to herein.
  • polymers of the stated preferred type can be modified by the addition of certain compounds in amounts which render the polymer substantially non-corrosive to aluminium.
  • a water swellable and water insoluble absorbent polymer including a corrosion inhibitor selected from the group comprising glucose derivatives such as sodium gluconate; silicates including eta silicates such as sodium meta silicate; tannic acid; urea; gelatin and polyphosphates and mixtures thereof.
  • a corrosion inhibitor selected from the group comprising glucose derivatives such as sodium gluconate; silicates including eta silicates such as sodium meta silicate; tannic acid; urea; gelatin and polyphosphates and mixtures thereof.
  • the amount of corrosion inhibitor present in the polymer ranges from 0.5 - 70% by weight.
  • the specifically preferred amounts of corrosion inhibitor depends upon the particular inhibitor.
  • sodium gluconate is typically present in amounts of 0.5 - 35% by weight of polymer and most preferred in amounts of 3 - 22% by weight.
  • sodium glucoheptonate and sodium boroglucoheptonate are typically present in amounts of 0.5 - 40% by weight of polymer and most preferred in amounts of 5 - 20% by weight.
  • the alkali meta silicates are preferred in particular sodium, calcium and potassium meta silicates. Typically, these compounds are present in amounts of 0.5 - 35% by weight of polymer and most preferred in amounts of 5 - 25% by weight.
  • Other silicates display varying preferred ranges. For example:
  • AEROSIL 200 99.8% silicon dioxide - the typical range is 0.5 - 80% by weight and a most preferred range of 20 - 50% by weight of polymer.
  • NEOSYL 98% silicon dioxide - the typical range is 0.5 - 60% by weight and a most preferred range of 20 - 50% by weight of polymer.
  • Tannic acid is typically present in amounts of 0.2 - 50% by weight and most preferred in an amount 0.5 - 20% by weight of polymer.
  • the alkali polyphosphates are preferred including potassium tripolyphosphate, sodium tripolyphosphate, potassium phosphate, potassium triphosphate, sodium triphosphate, sodium hexa meta phoshate and potassiun hexa meta phoshate.
  • these compounds are present in amounts ranging from 0.5 - 50% by weight and most preferred in amounts from 5 - 20% by weight of polymer.
  • SANWET 1000 (Sanyo Chemicals) (starch/acrylic acid)
  • SALSORB 84 (Allied Colloids) (polyacrylates)
  • ALCOSORB AB3 (Allied Colloids) (polyacrylamides)
  • DRY TECH (Dow Chemical) (sodium polyproprionate)
  • the degree of corrosion by the polymer on the plates was assessed visually on discolouration and is designated as follows:
  • a sample of 0.2gms of a number of absorbent polymers was taken and hydrated to 200 times its weight. Various additives were incorporated. The pH of the samples ranged from 6.5 to 7.5. The samples were exposed to an aluminium plate of 1.5 x 3.0cm and corrosion tested for 72 hours.
  • each of the additives renders the particular polymer inert or substantially non-corrosive to aluminium.
  • the modified polymer may be more widely utilized. Even in a highly hydrated state as stated there was minimal evidence of corrosion. Further, as the modification did not interfere with the polymer absorption capacity, it still operated as an effective absorbent of free moisture.
  • CONTACT BETWEEN POLYMERS 0.2 gm
  • Tests were carried out over a period of 48 hours using tap water at a pH 6.5-6.8 on aluminium plates of a size 1.5 x 3 cm. The degree of corrosion was assessed visually on discolouration.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Polymers & Plastics (AREA)
  • Medicinal Chemistry (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Nutrition Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)

Abstract

Un polymère absorbant gonflant dans l'eau et insoluble dans l'eau contient un inhibiteur de corrosion choisi dans un groupe de composés qui comprend un dérivé de glucose, des silicates, de l'acide tannique, de la gélatine et des polyphosphates ainsi que des mélanges de ces composés.
PCT/AU1989/000067 1988-02-18 1989-02-20 Compositions polymeres absorbantes WO1989007633A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPI682888 1988-02-18
AUPI6828 1988-02-18

Publications (1)

Publication Number Publication Date
WO1989007633A1 true WO1989007633A1 (fr) 1989-08-24

Family

ID=3772832

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU1989/000067 WO1989007633A1 (fr) 1988-02-18 1989-02-20 Compositions polymeres absorbantes

Country Status (1)

Country Link
WO (1) WO1989007633A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991000316A1 (fr) * 1989-06-28 1991-01-10 Commonwealth Scientific And Industrial Research Organisation Composition tampon de maintien de l'humidite
DE10114169A1 (de) * 2001-03-22 2002-10-02 Reinmar Peppmoeller Silikathaltige, Wasser und wäßrige Flüssigkeiten speichernde, anionische Polymere sowie deren Herstellung und Verwendung
WO2019138135A1 (fr) * 2018-01-15 2019-07-18 C-Ip S.A. Nouvel additif pour améliorer des compositions adhésives

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU7939075A (en) * 1974-04-03 1976-09-23 Bagley, Edward Brounell Highly absorbent starch-containing polymeric compositions
US4243656A (en) * 1978-05-19 1981-01-06 Walliczek Erwin G Biosynthetic polymeric compositions
AU6047480A (en) * 1979-10-09 1981-04-16 Henkel Corporation Starch graft polymer composition
GB2104532A (en) * 1981-08-07 1983-03-09 Unilever Plc Absorbent acrylamide copolymers plant growing media
AU1927183A (en) * 1982-10-21 1984-05-03 Imperial Chemical Industries Plc Method of thickening aqueous latex compositions
US4454055A (en) * 1980-08-25 1984-06-12 National Starch And Chemical Corporation Absorbent composition of matter, process for preparing same and article prepared therefrom
AU7063287A (en) * 1986-03-26 1987-10-01 Nalco Chemical Company A composition for inhibiting corrosion in industrial cooling waters and a method for improving the performance of corrosion inhibitors in same
EP0259037A2 (fr) * 1986-08-22 1988-03-09 Kao Corporation Résine absorbante

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU7939075A (en) * 1974-04-03 1976-09-23 Bagley, Edward Brounell Highly absorbent starch-containing polymeric compositions
US4243656A (en) * 1978-05-19 1981-01-06 Walliczek Erwin G Biosynthetic polymeric compositions
AU6047480A (en) * 1979-10-09 1981-04-16 Henkel Corporation Starch graft polymer composition
US4454055A (en) * 1980-08-25 1984-06-12 National Starch And Chemical Corporation Absorbent composition of matter, process for preparing same and article prepared therefrom
GB2104532A (en) * 1981-08-07 1983-03-09 Unilever Plc Absorbent acrylamide copolymers plant growing media
AU1927183A (en) * 1982-10-21 1984-05-03 Imperial Chemical Industries Plc Method of thickening aqueous latex compositions
AU7063287A (en) * 1986-03-26 1987-10-01 Nalco Chemical Company A composition for inhibiting corrosion in industrial cooling waters and a method for improving the performance of corrosion inhibitors in same
EP0259037A2 (fr) * 1986-08-22 1988-03-09 Kao Corporation Résine absorbante

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991000316A1 (fr) * 1989-06-28 1991-01-10 Commonwealth Scientific And Industrial Research Organisation Composition tampon de maintien de l'humidite
DE10114169A1 (de) * 2001-03-22 2002-10-02 Reinmar Peppmoeller Silikathaltige, Wasser und wäßrige Flüssigkeiten speichernde, anionische Polymere sowie deren Herstellung und Verwendung
WO2019138135A1 (fr) * 2018-01-15 2019-07-18 C-Ip S.A. Nouvel additif pour améliorer des compositions adhésives
JP2021511430A (ja) * 2018-01-15 2021-05-06 シー−アイピー エス・エーＣ−Ｉｐ Ｓ．Ａ． 接着剤組成物を改善するための新しい添加剤

Similar Documents

Publication Publication Date Title
US3306858A (en) Process for the preparation of storage stable detergent composition
EP3392329B1 (fr) Lingette de lessive comprenant des granulés fonctionnels
EP0213953B1 (fr) Ingrédient anti-mousse pour compositions détergentes
US4440746A (en) Granular pesticide composition
US8642057B2 (en) Antimicrobial and antiodor solutions and delivery systems
JPS5875548A (ja) タンポン
JPH0366321B2 (fr)
US4514361A (en) Steam sterilization indicator
NZ518835A (en) Full history time-temperature indicator system
CN101798146A (zh) 固体复合杀菌阻垢剂
US20080145391A1 (en) Absorbent systems providing antimicrobial activity
US2618604A (en) Polyphosphate-containing detergent compositions having decreased corrosivity toward aluminum
WO1989007633A1 (fr) Compositions polymeres absorbantes
Grases et al. The crystallization of calcium oxalate in the presence of aminoacids
Noh et al. Mineral-based slow release fertilizers: a review
CA2305446C (fr) Compositions de sels de phosphonium
US5961886A (en) Cut flower preservative slurry composition
Pomeroy et al. Effect of low temperature and calcium on survival and membrane properties of isolated winter wheat cells
JPS63502027A (ja) 親水性コンタクトレンズのための洗浄および保存組成物
CA2166946A1 (fr) Compose emmagasinant la chaleur
JPH0251581A (ja) ゲル状瞬間蓄冷鮮度保持剤
EP1168915B1 (fr) Composition solide
JPH0478494A (ja) スケール防止剤
JP2001031966A (ja) 気化性防錆剤
JPWO2006046496A1 (ja) 吸水性樹脂組成物

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AU JP KP KR US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH DE FR GB IT LU NL SE