FR2357587A1 - Procede pour la preparation de polyurethanes - Google Patents

Procede pour la preparation de polyurethanes

Info

Publication number
FR2357587A1
FR2357587A1 FR7621218A FR7621218A FR2357587A1 FR 2357587 A1 FR2357587 A1 FR 2357587A1 FR 7621218 A FR7621218 A FR 7621218A FR 7621218 A FR7621218 A FR 7621218A FR 2357587 A1 FR2357587 A1 FR 2357587A1
Authority
FR
France
Prior art keywords
rich
prepolymer
compsns
reacting
polyol
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
FR7621218A
Other languages
English (en)
Other versions
FR2357587B1 (fr
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.)
Solvay Interox Ltd
Original Assignee
Interox Chemicals 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 Interox Chemicals Ltd filed Critical Interox Chemicals Ltd
Priority to FR7621218A priority Critical patent/FR2357587A1/fr
Publication of FR2357587A1 publication Critical patent/FR2357587A1/fr
Application granted granted Critical
Publication of FR2357587B1 publication Critical patent/FR2357587B1/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
    • C08G18/08—Processes
    • C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
    • C08G18/12—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step

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

a. L'invention concerne un procédé de préparation de caoutchoucs polyuréthanes. b. Le procédé met en réaction du diisocyanate, au moins un polyol et au moins un agent d'extension de chaîne et comporte plusieurs étapes : 1 degrés Réaction de la quantité totale de diisocyanate avec une partie du polyol pour former un quasi-prépolymère riche en groupes isocyanates; 2 degrés Réaction de la quantité totale d'agent d'extension de chaîne avec le reste du polyol et une partie du quasi-prépolymère riche en groupes isocyanates pour donner un prépolymère riche en groupes hydroxyles; 3 degrés Réaction du prépolymère obtenu en 2 degrés et du reste du quasi-prépolymère obtenu en 1 degrés pour obtenir le polyuréthane. c. Les produits obtenus conviennent pour la fabrication de pneus pleins.
FR7621218A 1976-07-07 1976-07-07 Procede pour la preparation de polyurethanes Granted FR2357587A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7621218A FR2357587A1 (fr) 1976-07-07 1976-07-07 Procede pour la preparation de polyurethanes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7621218A FR2357587A1 (fr) 1976-07-07 1976-07-07 Procede pour la preparation de polyurethanes

Publications (2)

Publication Number Publication Date
FR2357587A1 true FR2357587A1 (fr) 1978-02-03
FR2357587B1 FR2357587B1 (fr) 1981-04-10

Family

ID=9175572

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7621218A Granted FR2357587A1 (fr) 1976-07-07 1976-07-07 Procede pour la preparation de polyurethanes

Country Status (1)

Country Link
FR (1) FR2357587A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3284539A (en) * 1963-12-26 1966-11-08 Mobay Chemical Corp Polyurethanes from two distinct polyurethane polymers
FR1534257A (fr) * 1966-08-20 1968-07-26 Procédé de production de fibres élastiques à partir de polymères de polyuréthane ayant une structure réticulée
DE2031030A1 (en) * 1969-06-23 1971-01-07 Imperial Chemical Industries Ltd., London Synthetic polyester-or polyether-urethane - elastomers for filament manufacture
FR2086369A1 (fr) * 1970-04-27 1971-12-31 Davidson Rubber Co
FR2116413A1 (fr) * 1970-12-01 1972-07-13 Shell Int Research

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3284539A (en) * 1963-12-26 1966-11-08 Mobay Chemical Corp Polyurethanes from two distinct polyurethane polymers
FR1534257A (fr) * 1966-08-20 1968-07-26 Procédé de production de fibres élastiques à partir de polymères de polyuréthane ayant une structure réticulée
DE2031030A1 (en) * 1969-06-23 1971-01-07 Imperial Chemical Industries Ltd., London Synthetic polyester-or polyether-urethane - elastomers for filament manufacture
FR2086369A1 (fr) * 1970-04-27 1971-12-31 Davidson Rubber Co
FR2116413A1 (fr) * 1970-12-01 1972-07-13 Shell Int Research

Also Published As

Publication number Publication date
FR2357587B1 (fr) 1981-04-10

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Legal Events

Date Code Title Description
ST Notification of lapse