GB1124789A - Improvements in or relating to polyurethanes - Google Patents

Improvements in or relating to polyurethanes

Info

Publication number
GB1124789A
GB1124789A GB5298664A GB5298664A GB1124789A GB 1124789 A GB1124789 A GB 1124789A GB 5298664 A GB5298664 A GB 5298664A GB 5298664 A GB5298664 A GB 5298664A GB 1124789 A GB1124789 A GB 1124789A
Authority
GB
United Kingdom
Prior art keywords
polyurethanes
active hydrogen
carbon atoms
ethylene oxide
hydrogen atoms
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
GB5298664A
Inventor
Roxburgh Richmond Aitken
Dennis John Cecil Wood
John Francis Wood
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries 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
Application filed by Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB5298664A priority Critical patent/GB1124789A/en
Publication of GB1124789A publication Critical patent/GB1124789A/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
    • C08G18/4845—Polyethers containing oxyethylene units and other oxyalkylene units containing oxypropylene or higher oxyalkylene end groups

Abstract

Polyurethanes are produced by reacting an organic polyisocyanate with a hydroxyl-containing product prepared by adding to a compound containing a plurality of active hydrogen atoms first a 1,2-alkylene oxide having at least 3 carbon atoms, then ethylene oxide, and then a further 1,2-alkylene oxide having at least 3 carbon atoms and either the same as or different from the first one. The compound with active hydrogen atoms may, for example, be water, ammonia, hydrazine, an alcohol or phenol or a carboxylic acid. All the specific examples use trimethylolpropane. Preferably, the polyethers contain 1-25% by wt. of ethylene oxide based on the total oxyalkylene content. An antioxidant may be incorporated into the polyether. Polyisocyanates mentioned may be di- or tri-and may be monomeric or low molecular weight polymers. All the examples use mixtures of 2,4- and 2,6-tolylene di-isocyanate. The polyurethanes may be rigid or flexible, and foamed or not. Conventional gas producers, catalysts and other additives may be used.
GB5298664A 1964-12-31 1964-12-31 Improvements in or relating to polyurethanes Expired GB1124789A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5298664A GB1124789A (en) 1964-12-31 1964-12-31 Improvements in or relating to polyurethanes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5298664A GB1124789A (en) 1964-12-31 1964-12-31 Improvements in or relating to polyurethanes

Publications (1)

Publication Number Publication Date
GB1124789A true GB1124789A (en) 1968-08-21

Family

ID=10466160

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5298664A Expired GB1124789A (en) 1964-12-31 1964-12-31 Improvements in or relating to polyurethanes

Country Status (1)

Country Link
GB (1) GB1124789A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2002064A1 (en) * 1970-01-17 1971-07-22 Bayer Ag Process for the production of flame-retardant foams based on isocyanate
FR2488897A1 (en) * 1980-08-25 1982-02-26 Texaco Development Corp PROCESS FOR THE PREPARATION OF A POLYURETHANE ELASTOMER BY REACTION INJECTION MOLDING AND THE FORMED ARTICLE OBTAINED THEREBY
GB2181736A (en) * 1985-10-22 1987-04-29 Basf Corp Reaction injection molded microcellular polyurethane elastomers

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2002064A1 (en) * 1970-01-17 1971-07-22 Bayer Ag Process for the production of flame-retardant foams based on isocyanate
FR2488897A1 (en) * 1980-08-25 1982-02-26 Texaco Development Corp PROCESS FOR THE PREPARATION OF A POLYURETHANE ELASTOMER BY REACTION INJECTION MOLDING AND THE FORMED ARTICLE OBTAINED THEREBY
GB2181736A (en) * 1985-10-22 1987-04-29 Basf Corp Reaction injection molded microcellular polyurethane elastomers

Similar Documents

Publication Publication Date Title
GB1523962A (en) Polyisocyanates which contain carbodiimide groups and which are stable on storage
GB1494538A (en) Stabilised polyalkylene polyols and polyurethane foams prepared therefrom
GB1089140A (en) Improvements in or relating to polyethers and the utilization thereof
GB1334033A (en) Catalyst for polyurethene preparation
ES446394A1 (en) Polyurethane foams having an integral skin using a mixture of polyols as the chain extender
GB1064576A (en) Cellular polyurethanes
GB1453157A (en) Polyurethane adhesive composition with minimal moisture sensi tivity
ES407802A1 (en) Rigid polyurethane compositions
ES275846A1 (en) Procedure for obtaining a polyurethane polymer (Machine-translation by Google Translate, not legally binding)
ES431891A1 (en) Manufacture of membrane-free nonlustrous polyurethane foam
ES2171029T3 (en) PROCEDURE FOR THE MANUFACTURE OF RIGID FOAMS OF CLOSED ALVEOL POLYURETHANE WITH A LOW THERMAL CONDUCTIVITY.
GB1450660A (en) Polyisocyanates
ES426729A1 (en) Polyurethane foams
GB1091604A (en) Improvements in or relating to polyurethane foams
GB1124789A (en) Improvements in or relating to polyurethanes
ES400762A1 (en) Process for obtaining polyurethane foams
ES320129A1 (en) Procedure for preparation of non-flexible cellular polyurethanes. (Machine-translation by Google Translate, not legally binding)
GB1497956A (en) Process for preparing smoke-retardant polyisocyanurate foam
GB1115151A (en) Improvements in or relating to the manufacture of polyurethanes
ES339639A1 (en) Foamed Polymers Containing an Isocyanurate Ring Structure
CA2088414A1 (en) Process for preparing open cell, resilient, flexible polyurethane foams
GB1466712A (en) Hydrophilic polyurethane foams
ES224837A1 (en) Treatment of flexible cellular polyurethane material with ammonia
GB1339442A (en) Polyurethane foams
JPS54116093A (en) Production of polyurethane foam