FR2172860A2 - Polyurethane foam - having improved hydrophilicity and strong absorption - Google Patents

Polyurethane foam - having improved hydrophilicity and strong absorption

Info

Publication number
FR2172860A2
FR2172860A2 FR7206310A FR7206310A FR2172860A2 FR 2172860 A2 FR2172860 A2 FR 2172860A2 FR 7206310 A FR7206310 A FR 7206310A FR 7206310 A FR7206310 A FR 7206310A FR 2172860 A2 FR2172860 A2 FR 2172860A2
Authority
FR
France
Prior art keywords
polyurethane foam
strong absorption
improved hydrophilicity
gps
ratio
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.)
Granted
Application number
FR7206310A
Other languages
French (fr)
Other versions
FR2172860B2 (en
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.)
Pechiney Ugine Kuhlmann SA
Original Assignee
Pechiney Ugine Kuhlmann SA
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 Pechiney Ugine Kuhlmann SA filed Critical Pechiney Ugine Kuhlmann SA
Priority to FR7206310A priority Critical patent/FR2172860A2/en
Publication of FR2172860A2 publication Critical patent/FR2172860A2/en
Application granted granted Critical
Publication of FR2172860B2 publication Critical patent/FR2172860B2/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/48—Polyethers
    • C08G18/4804—Two or more polyethers of different physical or chemical nature
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/48—Polyethers
    • C08G18/4833—Polyethers containing oxyethylene units
    • C08G18/4837—Polyethers containing oxyethylene units and other oxyalkylene units

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polyurethanes Or Polyureas (AREA)

Abstract

Polyurethane foam is prepd. by reacting a polyisocyanate with a hydroxylated cpd. in the presence of a catalyst and a blowing agent and additions, and using a polyether polyol contg. 50-70% ethylene oxide units and having the following features : (a) mean eq. mol.wt. 800-2000 per OH gp., (b) no. of pri. OH gps. 45-55% of total OH gps., (c) ratio of ethylene oxide content of prim. OH gp. 1.1-1.3 and (d) cloud pt. 30 (AFNOR T 73403), ratio of NCO/OH >=1. The foam also has low density, and good flexibility.
FR7206310A 1972-02-24 1972-02-24 Polyurethane foam - having improved hydrophilicity and strong absorption Granted FR2172860A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7206310A FR2172860A2 (en) 1972-02-24 1972-02-24 Polyurethane foam - having improved hydrophilicity and strong absorption

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7206310A FR2172860A2 (en) 1972-02-24 1972-02-24 Polyurethane foam - having improved hydrophilicity and strong absorption

Publications (2)

Publication Number Publication Date
FR2172860A2 true FR2172860A2 (en) 1973-10-05
FR2172860B2 FR2172860B2 (en) 1976-07-23

Family

ID=9094070

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7206310A Granted FR2172860A2 (en) 1972-02-24 1972-02-24 Polyurethane foam - having improved hydrophilicity and strong absorption

Country Status (1)

Country Link
FR (1) FR2172860A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0365096A3 (en) * 1988-10-20 1991-02-06 Shell Internationale Researchmaatschappij B.V. Method of growing plants

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4143004A (en) 1974-10-02 1979-03-06 Berol Kemi Ab Process for the preparation of polyurethane foam

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0365096A3 (en) * 1988-10-20 1991-02-06 Shell Internationale Researchmaatschappij B.V. Method of growing plants

Also Published As

Publication number Publication date
FR2172860B2 (en) 1976-07-23

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Legal Events

Date Code Title Description
TP Transmission of property
TP Transmission of property