CA1221846A - Water absorbing polymers - Google Patents

Water absorbing polymers

Info

Publication number
CA1221846A
CA1221846A CA000434514A CA434514A CA1221846A CA 1221846 A CA1221846 A CA 1221846A CA 000434514 A CA000434514 A CA 000434514A CA 434514 A CA434514 A CA 434514A CA 1221846 A CA1221846 A CA 1221846A
Authority
CA
Canada
Prior art keywords
polymer
water
ppm
cross
linking agent
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
CA000434514A
Other languages
English (en)
French (fr)
Inventor
John B. Clarke
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ciba Specialty Chemicals Water Treatments Ltd
Original Assignee
Allied Colloids Ltd
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=26283620&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA1221846(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from GB838307696A external-priority patent/GB8307696D0/en
Application filed by Allied Colloids Ltd filed Critical Allied Colloids Ltd
Application granted granted Critical
Publication of CA1221846A publication Critical patent/CA1221846A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K17/00—Soil-conditioning materials or soil-stabilising materials
    • C09K17/14—Soil-conditioning materials or soil-stabilising materials containing organic compounds only
    • C09K17/18—Prepolymers; Macromolecular compounds
    • C09K17/20—Vinyl polymers
    • C09K17/22—Polyacrylates; Polymethacrylates
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G24/00—Growth substrates; Culture media; Apparatus or methods therefor
    • A01G24/10—Growth substrates; Culture media; Apparatus or methods therefor based on or containing inorganic material
    • A01G24/18—Growth substrates; Culture media; Apparatus or methods therefor based on or containing inorganic material containing inorganic fibres, e.g. mineral wool
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G24/00—Growth substrates; Culture media; Apparatus or methods therefor
    • A01G24/30—Growth substrates; Culture media; Apparatus or methods therefor based on or containing synthetic organic compounds
    • A01G24/35—Growth substrates; Culture media; Apparatus or methods therefor based on or containing synthetic organic compounds containing water-absorbing polymers
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G24/00—Growth substrates; Culture media; Apparatus or methods therefor
    • A01G24/40—Growth substrates; Culture media; Apparatus or methods therefor characterised by their structure
    • A01G24/42—Growth substrates; Culture media; Apparatus or methods therefor characterised by their structure of granular or aggregated structure
    • 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
    • Y10S71/00—Chemistry: fertilizers
    • Y10S71/903—Soil conditioner

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Environmental Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Soil Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Cultivation Of Plants (AREA)
  • Soil Conditioners And Soil-Stabilizing Materials (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
CA000434514A 1982-08-17 1983-08-12 Water absorbing polymers Expired CA1221846A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB8223669 1982-08-17
GB8223669 1982-08-17
GB838307696A GB8307696D0 (en) 1983-03-21 1983-03-21 Water-absorbing polymers
GB8307696 1983-03-21

Publications (1)

Publication Number Publication Date
CA1221846A true CA1221846A (en) 1987-05-19

Family

ID=26283620

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000434514A Expired CA1221846A (en) 1982-08-17 1983-08-12 Water absorbing polymers

Country Status (12)

Country Link
US (1) US4559074A (enEXAMPLES)
EP (1) EP0101253B1 (enEXAMPLES)
AU (1) AU554114B2 (enEXAMPLES)
CA (1) CA1221846A (enEXAMPLES)
DE (1) DE3372635D1 (enEXAMPLES)
DK (1) DK374183A (enEXAMPLES)
ES (1) ES524979A0 (enEXAMPLES)
FI (1) FI832941A7 (enEXAMPLES)
GR (1) GR78928B (enEXAMPLES)
IL (1) IL69456A (enEXAMPLES)
NO (1) NO832937L (enEXAMPLES)
PT (1) PT77184B (enEXAMPLES)

Families Citing this family (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2572414B1 (fr) * 1984-10-31 1986-12-12 Beck Sa Leon Produits gonflants et retenteurs d'humidite a base de polyacrylamide micronisee
US4690971A (en) * 1985-03-05 1987-09-01 Allied Colloids Limited Water absorbing polymers
US4880858A (en) * 1985-03-05 1989-11-14 Allied Colloids Limited Water absorbing polymers
US4797145A (en) * 1986-02-18 1989-01-10 Wallace Garn A Method of agricultural soil improvement
WO1987007851A1 (en) * 1986-06-18 1987-12-30 Honeyoak International Pty. Ltd. Water absorbing composition
GB8911525D0 (en) * 1989-05-19 1989-07-05 Allied Colloids Ltd Polymeric composition
AT392779B (de) * 1989-08-31 1991-06-10 Chemie Linz Gmbh Bodenkonditionierungsmittel
US5209768A (en) * 1991-06-14 1993-05-11 American Colloid Company Method of improving sod growth
US5303663A (en) * 1992-05-08 1994-04-19 Soil Injection Layering Systems, Inc. Subsurface particle injection methods
EP0586911A1 (en) * 1992-09-11 1994-03-16 Cytec Technology Corp. Polyacrylamide soil modifiers enhanced with nutrients
US5389542A (en) * 1992-11-04 1995-02-14 Development Center For Biotechnology Controlling vitrification of plants using water absorbent polymer
FR2705191B1 (fr) * 1993-05-13 1995-08-11 Hortifrance Procédé de préparation d'un produit utilisé comme support ou amendement pour les cultures.
US5649495A (en) * 1995-06-19 1997-07-22 Salestrom; Ronald D. Agricultural water retention mixture and application technique
US5868087A (en) * 1995-06-19 1999-02-09 Salestrom; Ronald D. Agricultural water retention and flow enhancement mixture
US6130304A (en) * 1996-05-14 2000-10-10 Sanyo Chemical Industries, Ltd. Water-absorbent or water-retention material and production method thereof
CA2262669A1 (en) * 1997-06-06 1998-12-10 Showa Denko K.K. Seedling culture mat
US6395051B1 (en) * 1997-07-18 2002-05-28 Soil Enhancement Technologies Llc Small particle polyacrylamide for soil conditioning
DE19813425A1 (de) * 1998-03-26 1999-09-30 Stockhausen Chem Fab Gmbh Verfahren zur Verminderung der Pflanzenverfügbarkeit von Schwermetallen sowie Verwendung von vernetzten Polyacrylaten in dem Verfahren
US6688039B2 (en) * 1998-04-24 2004-02-10 Hans Vonk Method of preserving cut flowers, gel on water basis and a holder
US6041546A (en) * 1998-05-26 2000-03-28 Nodirt Exotic Planters, Inc. Planter pouch
US6560923B1 (en) * 1998-07-23 2003-05-13 Kao Corporation Aqueous artificial media
EP0980647A1 (en) * 1998-08-14 2000-02-23 Rockwool International A/S Mineral wool plant substrate
GB2340835B (en) 1998-08-26 2003-01-15 Pvax Ploymers Ltd PVA-containing compositions
US6213416B1 (en) 1998-09-28 2001-04-10 Ciba Specialty Chemicals Water Treatments Ltd. Treatment of phosphate-containing rock
GB0005016D0 (en) 2000-03-01 2000-04-26 Jumik Technologies Limited PVA-Containing compositions
US20040069032A1 (en) * 2002-10-15 2004-04-15 Krysiak Michael Dennis Granular fertilizer
US7994138B2 (en) * 2004-06-01 2011-08-09 Agscitech Inc. Microbial biosurfactants as agents for controlling pests
US8076391B2 (en) * 2004-10-21 2011-12-13 Aicardo Roa-Espinosa Copolymer composition for particle aggregation
GB2422150B (en) * 2005-01-13 2009-11-25 Pvaxx Res & Dev Ltd PVA-containing compositions
WO2009123699A2 (en) * 2008-03-31 2009-10-08 Rhodia Inc. Self-situating stimuli-responsive polymer compositions in soil additives and methods for use
BR112012030842A2 (pt) 2010-07-02 2016-11-08 Indian Council Medical Res superabsorventes não compósitos e compósitos, e, método para produzir superabsorventes não compósitos e compósitos
WO2012164044A1 (en) * 2011-05-31 2012-12-06 Knauf Insulation Mineral wool product
US9938461B2 (en) * 2014-11-03 2018-04-10 S.P.C.M. Sa Process for soil conditioning by aerial application of water soluble or swellable polymers
JP5787300B1 (ja) * 2015-02-23 2015-09-30 株式会社ヤマザキ タマネギおよび軟弱植物の育苗培土用固化剤および育苗用培土
US20210144938A1 (en) * 2017-05-24 2021-05-20 Dow Global Technologies Llc Growth media compositions

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3973355A (en) * 1974-01-18 1976-08-10 Agritec Co. Self-contained hydrophilic plant growth matrix and method
US4172066A (en) * 1974-06-21 1979-10-23 The Dow Chemical Company Cross-linked, water-swellable polymer microgels
US4254008A (en) * 1979-09-13 1981-03-03 Diamond Shamrock Corporation Crosslinked acrylamide polymer compositions and shaped articles therefrom
CH635126A5 (de) * 1979-07-31 1983-03-15 Isaflex Ag Verfahren zur verbesserung des wasserhaushaltes und zur auflockerung von wuestenboeden und von topfkulturboeden und mittel zu dessen ausfuehrung.
ZA825595B (en) * 1981-08-07 1984-03-28 Unilever Plc Particulate compositions useful as plant growing media additives

Also Published As

Publication number Publication date
ES8502464A1 (es) 1985-01-01
AU1766483A (en) 1984-02-23
PT77184A (en) 1983-09-01
AU554114B2 (en) 1986-08-07
DK374183D0 (da) 1983-08-16
PT77184B (en) 1986-03-27
EP0101253A2 (en) 1984-02-22
FI832941L (fi) 1984-02-18
IL69456A0 (en) 1983-11-30
DE3372635D1 (en) 1987-08-27
EP0101253B1 (en) 1987-07-22
US4559074A (en) 1985-12-17
EP0101253A3 (en) 1985-08-07
GR78928B (enEXAMPLES) 1984-10-02
DK374183A (da) 1984-02-18
NO832937L (no) 1984-02-20
ES524979A0 (es) 1985-01-01
FI832941A7 (fi) 1984-02-18
FI832941A0 (fi) 1983-08-16
IL69456A (en) 1986-10-31

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Legal Events

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MKEX Expiry