GB1035254A - Improved polyurehtane elastomers and method of making same - Google Patents

Improved polyurehtane elastomers and method of making same

Info

Publication number
GB1035254A
GB1035254A GB1354963A GB1354963A GB1035254A GB 1035254 A GB1035254 A GB 1035254A GB 1354963 A GB1354963 A GB 1354963A GB 1354963 A GB1354963 A GB 1354963A GB 1035254 A GB1035254 A GB 1035254A
Authority
GB
United Kingdom
Prior art keywords
glycol
ether glycol
diamine
solution
piperazine
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
GB1354963A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB1354963A priority Critical patent/GB1035254A/en
Publication of GB1035254A publication Critical patent/GB1035254A/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
    • C08G18/08—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
    • 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
    • C08G18/4009—Two or more macromolecular compounds not provided for in one single group of groups C08G18/42 - C08G18/64
    • C08G18/4018—Mixtures of compounds of group C08G18/42 with compounds of group C08G18/48

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

Elastic polyurethanes are made by heating a mixture of a difunctional hydroxy-terminated polyether glycol and a difunctional hydroxy-terminated polyester glycol, each having a MW above 700, with a stoichiometric excess of an organic diisocyanate to produce an isocyanate terminated prepolymer, reacting the resulting isocyanate terminated prepolymer with a diamine, dicarboxylic acid or glycol to form the resulting polymer, which is then shaped and cured. Many polyether glycols are specified including polypropylene ether glycol, polytetramethylene ether glycol, polyethylene ether glycol; 1,2-polydimethylene ether glycol and polydecamethylene ether glycol. Many suitable diisocyanates are specified, but arylene diisocyanates are preferred. The isocyanate terminated prepolymer may be reacted with a diamine in stoichiometrically equivalent amount, e.g. hydrazine, ethylene diamine, piperazine; 1,4-diamino-2-methyl piperazine, 1,4 - diamino - 2,5 - dimethyl piperazine and methylimino bis propylamine or mixtures thereof, in solution or in bulk, and the resulting polymer shaped, e.g. by extruding the polymer solution through a spinnerette to form filaments or by casting or dip coating the solution to form self-supporting films. In Example (1) polypropylene etherglycol and polypropylene adipate glycol both of MW about 2000 were reacted with methylene bis(4-phenylisocyanate) heated, diluted with dimethyl formamide. Hydrazine was added and the polymer cast on a glass plate.
GB1354963A 1963-04-05 1963-04-05 Improved polyurehtane elastomers and method of making same Expired GB1035254A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1354963A GB1035254A (en) 1963-04-05 1963-04-05 Improved polyurehtane elastomers and method of making same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1354963A GB1035254A (en) 1963-04-05 1963-04-05 Improved polyurehtane elastomers and method of making same

Publications (1)

Publication Number Publication Date
GB1035254A true GB1035254A (en) 1966-07-06

Family

ID=10024958

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1354963A Expired GB1035254A (en) 1963-04-05 1963-04-05 Improved polyurehtane elastomers and method of making same

Country Status (1)

Country Link
GB (1) GB1035254A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0198175A2 (en) * 1985-04-18 1986-10-22 The Firestone Tire & Rubber Company Prepolymer formation

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0198175A2 (en) * 1985-04-18 1986-10-22 The Firestone Tire & Rubber Company Prepolymer formation
EP0198175A3 (en) * 1985-04-18 1988-01-27 The Firestone Tire & Rubber Company Prepolymer formation

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