GB1381925A - Process for obtaining polyurethane foams - Google Patents

Process for obtaining polyurethane foams

Info

Publication number
GB1381925A
GB1381925A GB1177972A GB1177972A GB1381925A GB 1381925 A GB1381925 A GB 1381925A GB 1177972 A GB1177972 A GB 1177972A GB 1177972 A GB1177972 A GB 1177972A GB 1381925 A GB1381925 A GB 1381925A
Authority
GB
United Kingdom
Prior art keywords
polyether
groups
ethylene oxide
ratio
polyisocyanate
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
GB1177972A
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
Publication of GB1381925A publication Critical patent/GB1381925A/en
Expired 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
    • C08G18/4833—Polyethers containing oxyethylene units
    • C08G18/4837—Polyethers containing oxyethylene units and other oxyalkylene units
    • 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
    • C08G2110/00—Foam properties
    • C08G2110/0008—Foam properties flexible
    • 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
    • C08G2110/00—Foam properties
    • C08G2110/0041—Foam properties having specified density
    • C08G2110/005—< 50kg/m3
    • 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
    • C08G2110/00—Foam properties
    • C08G2110/0083—Foam properties prepared using water as the sole blowing agent

Abstract

1381925 Hydrophilic polyurethane foams PECHINEY UGINE KUHLMANN 14 March 1972 [15 March 1971] 11779/72 Heading C3R Flexible, hydrophilic polyurethane foams are prepared by reacting in the presence of a blowing agent which comprises water with or without another blowing agent and a catalyst for the reaction, a polyisocyanate with a polyhydroxyl component which is a polyether polyol or mixture of polyether polyols containing 50 to 70% ethylene oxide groups expressed in weight based on the polyether polyol and having the following characteristics: (a) a mean equivalent M.W. of 800 to 2000 per OH group, (b) a number x of primary OH groups, based on the total number of OH groups of from 34À8 to 55%, (c) a ratio y of the value of ethylene oxide groups to the value of primary OH groups of from 1À1 to 1À7, with the proviso that for values of x in the range 45 to 55%, the ratio y is not higher than 1À3, while values of y greater than 1À3 imply corresponding values of x of from 34À8 to 45%, (d) a cloud point determined in accordance with standard test AFNOR T73403, method B of less than 30: the polyisocyanate and the polyether polyol (5) being used such that the NCO/OH ratio is at least 1. Toluene diisocyanate is the preferred polyisocyanate and the polyether polyols are preferably produced by condensing ethylene oxide and propylene oxide on an at least difunctional initiator. In a typical example, a polyether prepared by the random condensation or diethylene glycol of a mixture of ethylene and propylene oxides is mixed with a polyether, a polyether prepared by successive condensation or trimethylolpropane of propylene oxide, then ethylene oxide and the mixture reacted with 80/20 toluene diisocyanate in the presence of a tertiary amine catalyst, a silicone oil and water.
GB1177972A 1971-03-15 1972-03-14 Process for obtaining polyurethane foams Expired GB1381925A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR717108967A FR2129823B1 (en) 1971-03-15 1971-03-15

Publications (1)

Publication Number Publication Date
GB1381925A true GB1381925A (en) 1975-01-29

Family

ID=9073540

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1177972A Expired GB1381925A (en) 1971-03-15 1972-03-14 Process for obtaining polyurethane foams

Country Status (12)

Country Link
BE (1) BE780287A (en)
DE (1) DE2211914C2 (en)
DK (1) DK141552B (en)
ES (1) ES400762A1 (en)
FR (1) FR2129823B1 (en)
GB (1) GB1381925A (en)
IL (1) IL38966A0 (en)
IT (1) IT957566B (en)
NL (1) NL154760B (en)
NO (1) NO134841C (en)
SE (1) SE402783B (en)
TR (1) TR16954A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5494941A (en) * 1992-02-11 1996-02-27 Basf Aktiengesellschaft Preparation of chlorofluorocarbon-free flexible polyurethane foams using diphenylmethane diisocyanate-based polyisocyanate mixtures containing urethane groups, and modified polyisocyanate mixtures of the type
WO2000004071A1 (en) * 1998-07-13 2000-01-27 Bayer Antwerpen N.V. Dispersion polyols for hypersoft polyurethane foam
WO2001032736A1 (en) * 1999-11-02 2001-05-10 Huntsman International Llc Process for making visco-elastic foams, polyols blend and reaction system useful therefor
WO2012050671A1 (en) 2010-09-29 2012-04-19 Dow Global Technologies Llc Process for making high airflow and low compression set viscoelastic polyurethane foam
US9096727B2 (en) 2010-09-07 2015-08-04 Dow Global Technologies Llc Process for making low compression and high airflow MDI viscoelastic polyurethane foam

Families Citing this family (8)

* 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
JPS583488B2 (en) * 1978-05-15 1983-01-21 株式会社ブリヂストン Method for manufacturing soft polyether polyurethane foam
DE2916485A1 (en) * 1979-04-24 1980-11-06 Bayer Ag METHOD FOR PRODUCING ELASTIC MOLDED BODIES
EP0022617B2 (en) * 1979-07-11 1991-09-25 Imperial Chemical Industries Plc Polyisocyanate compositions and their use in the preparation of polyurethane foams
DE3164149D1 (en) * 1980-07-21 1984-07-19 Mobay Chemical Corp Process for the production of elastomeric moulded products
DE3942330A1 (en) * 1989-12-21 1991-06-27 Basf Ag METHOD FOR THE PRODUCTION OF FLEXIBLE POLYURETHANE SOFT FOAMS WITH VISCOELASTIC, BODY SOUND ABSORBING PROPERTIES AND POLYOXYALKYLENE-POLYOL BLENDS TO BE USED THEREFOR
DE4202992A1 (en) * 1992-02-03 1993-08-05 Bayer Ag METHOD FOR PRODUCING ELASTIC, OPEN-CELLED PUR SOFT FOAMS
CZ351996A3 (en) * 1995-12-07 1997-06-11 Shell Int Research Polyol formulation for preparing flexible polyurethane foam similar to latex

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3441523A (en) * 1964-11-12 1969-04-29 Allied Chem Filled cellular urethanes
US3457203A (en) * 1966-04-25 1969-07-22 Olin Mathieson Hydrophilic polyurethane foams and a process for preparing them
FR1599727A (en) * 1968-08-13 1970-07-20

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5494941A (en) * 1992-02-11 1996-02-27 Basf Aktiengesellschaft Preparation of chlorofluorocarbon-free flexible polyurethane foams using diphenylmethane diisocyanate-based polyisocyanate mixtures containing urethane groups, and modified polyisocyanate mixtures of the type
WO2000004071A1 (en) * 1998-07-13 2000-01-27 Bayer Antwerpen N.V. Dispersion polyols for hypersoft polyurethane foam
US6063309A (en) * 1998-07-13 2000-05-16 Arco Chemical Technology L.P. Dispersion polyols for hypersoft polyurethane foam
KR100574302B1 (en) * 1998-07-13 2006-04-27 바이엘안트베르펜엔.파우 Dispersion Polyols for Hypersoft Polyurethane Foam
CZ300541B6 (en) * 1998-07-13 2009-06-10 Bayer Antwerpen N. V. Method for preparing in-situ disperse polyol
WO2001032736A1 (en) * 1999-11-02 2001-05-10 Huntsman International Llc Process for making visco-elastic foams, polyols blend and reaction system useful therefor
US6617369B2 (en) 1999-11-02 2003-09-09 Huntsman International Llc Process for making visco-elastic foams, polyols blend and reaction system useful therefor
US9096727B2 (en) 2010-09-07 2015-08-04 Dow Global Technologies Llc Process for making low compression and high airflow MDI viscoelastic polyurethane foam
WO2012050671A1 (en) 2010-09-29 2012-04-19 Dow Global Technologies Llc Process for making high airflow and low compression set viscoelastic polyurethane foam
US9029432B2 (en) 2010-09-29 2015-05-12 Dow Global Technologies Llc Process for making high airflow and low compression set viscoelastic polyurethane foam

Also Published As

Publication number Publication date
SE402783B (en) 1978-07-17
IL38966A0 (en) 1972-05-30
FR2129823B1 (en) 1974-03-01
NL154760B (en) 1977-10-17
DK141552B (en) 1980-04-21
NO134841B (en) 1976-09-13
NL7203360A (en) 1972-09-19
BE780287A (en) 1972-09-06
FR2129823A1 (en) 1972-11-03
TR16954A (en) 1974-01-17
DE2211914A1 (en) 1972-10-12
DK141552C (en) 1980-10-06
NO134841C (en) 1976-12-21
IT957566B (en) 1973-10-20
DE2211914C2 (en) 1983-11-10
ES400762A1 (en) 1975-01-16

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PE20 Patent expired after termination of 20 years