GB1036175A - Improvements in or relating to polyurethane foam - Google Patents

Improvements in or relating to polyurethane foam

Info

Publication number
GB1036175A
GB1036175A GB26992/64A GB2699264A GB1036175A GB 1036175 A GB1036175 A GB 1036175A GB 26992/64 A GB26992/64 A GB 26992/64A GB 2699264 A GB2699264 A GB 2699264A GB 1036175 A GB1036175 A GB 1036175A
Authority
GB
United Kingdom
Prior art keywords
alkylene oxide
reacting
carbon atoms
adduct
alkaline catalyst
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
GB26992/64A
Inventor
Edward Derek Garnett
Alec Victor Mercer
Ronald Arthur Simcock
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.)
Shell Internationale Research Maatschappij BV
Original Assignee
Shell Internationale Research Maatschappij BV
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 Shell Internationale Research Maatschappij BV filed Critical Shell Internationale Research Maatschappij BV
Priority to GB26992/64A priority Critical patent/GB1036175A/en
Publication of GB1036175A publication Critical patent/GB1036175A/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
    • C08G18/4854—Polyethers containing oxyalkylene groups having four carbon atoms in the alkylene group
    • 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

Abstract

A process for the preparation of a polyurethane foam by the "one shot method" comprises reacting an organic polyisocyanate or an organic polyisothiocyanate with a polyol having a hydroxyl number between 60 and 168 mg. KOH/g. prepared by reacting a 1,2-alkylene oxide which contains in its structure at least three carbon atoms with a nucleating agent under adduct forming conditions in the presence of an alkaline catalyst to give an intermediate product and then reacting the intermediate product under adduct forming conditions in the presence of an alkaline catalyst with a 1,2-alkylene oxide which contains in its structure at least one carbon atom more than the number of carbon atoms in the structure of the 1,2-alkylene oxide used to prepare the intermediate product. The nucleating agent is defined as an organic polyfunctional compound containing at least two active hydrogen atoms, those preferred being polyhydric alcohols, but polyhydric phenols and polyamines may also be used. In Examples 1 and 2 the polyol is prepared by reacting glycerol with propylene oxide to give an intermediate adduct which is reacted with a mixture of butene oxides containing mainly 1-butene oxide. Potassium is used as the alkaline catalyst. The 1,2-alkylene oxide that is reacted with the intermediate adduct preferably contains not more than eight carbon atoms. Water is used as the blowing agent and the preferred polyisocyanate is an 80:20% by weight mixture of 2,4-toluene diisocyanate and 2,6-toluene diisocyanate.
GB26992/64A 1964-06-30 1964-06-30 Improvements in or relating to polyurethane foam Expired GB1036175A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB26992/64A GB1036175A (en) 1964-06-30 1964-06-30 Improvements in or relating to polyurethane foam

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB26992/64A GB1036175A (en) 1964-06-30 1964-06-30 Improvements in or relating to polyurethane foam

Publications (1)

Publication Number Publication Date
GB1036175A true GB1036175A (en) 1966-07-13

Family

ID=10252429

Family Applications (1)

Application Number Title Priority Date Filing Date
GB26992/64A Expired GB1036175A (en) 1964-06-30 1964-06-30 Improvements in or relating to polyurethane foam

Country Status (1)

Country Link
GB (1) GB1036175A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0173879A1 (en) * 1984-08-09 1986-03-12 Dai-Ichi Kogyo Seiyaku Co., Ltd. Polyethers having tertiary alcoholic terminals
WO1998050449A1 (en) * 1997-05-01 1998-11-12 The Dow Chemical Company Oxyalkylene-modified polyoxybutylene alcohols

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0173879A1 (en) * 1984-08-09 1986-03-12 Dai-Ichi Kogyo Seiyaku Co., Ltd. Polyethers having tertiary alcoholic terminals
WO1998050449A1 (en) * 1997-05-01 1998-11-12 The Dow Chemical Company Oxyalkylene-modified polyoxybutylene alcohols

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