GB1078525A - Polyurethanes - Google Patents

Polyurethanes

Info

Publication number
GB1078525A
GB1078525A GB919864A GB919864A GB1078525A GB 1078525 A GB1078525 A GB 1078525A GB 919864 A GB919864 A GB 919864A GB 919864 A GB919864 A GB 919864A GB 1078525 A GB1078525 A GB 1078525A
Authority
GB
United Kingdom
Prior art keywords
polyurethane
tolylene diisocyanate
sulphur
polyester
uretdione
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
GB919864A
Inventor
Gordon Trappe
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 GB919864A priority Critical patent/GB1078525A/en
Priority to FR7986A priority patent/FR1430508A/en
Publication of GB1078525A publication Critical patent/GB1078525A/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
    • C08G18/83—Chemically modified polymers
    • C08G18/86—Chemically modified polymers by peroxides
    • 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
    • C08G18/67—Unsaturated compounds having active hydrogen
    • C08G18/68—Unsaturated polyesters
    • 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
    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72—Polyisocyanates or polyisothiocyanates
    • C08G18/77—Polyisocyanates or polyisothiocyanates having heteroatoms in addition to the isocyanate or isothiocyanate nitrogen and oxygen or sulfur
    • C08G18/78—Nitrogen
    • C08G18/79—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates
    • C08G18/798—Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates containing urethdione groups
    • 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
    • C08G18/83—Chemically modified polymers
    • C08G18/87—Chemically modified polymers by sulfur

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Polyurethanes Or Polyureas (AREA)

Abstract

Cured elastomeric polyurethanes are produced by the condensation of one or more linear hydroxyl-ended polymers of M.W. 800-5000, one or more organic diisocyanates and optionally a compound of M.W. less than 800 containing two active hydrogen atoms whereby a polyurethane containing 0.5 to 5.0% of uretdione groups is obtained and curing the polyurethane in the presence of sulphur or an organic peroxide. One of the polyurethane precursors may contain olefinic unsaturation, thereby introducing unsaturation either in the polyurethane chain or in pendant groups. The linear hydroxyl polymer may be a polyester, polyether, polythioether or polyacetal. The uretdione groups may be introduced by the use of a diisocyanate containing a uretdione group, e.g. a dimer of tolylene diisocyanate. Fillers, curing accelerators, plasticizing agents, flame proofing agents and antioxidants may be added. In the example a polyester was reacted with tolylene diisocyanate and then dimeric 2:4 tolylene diisocyanate added, the mixture heated and compounded with: carbon black, 2-mercaptobenzthiazole, 2:21-di-(benzthiazyl) disulphide, sulphur, stearic acid, ZnCl2 and heated to cure.
GB919864A 1964-03-04 1964-03-04 Polyurethanes Expired GB1078525A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB919864A GB1078525A (en) 1964-03-04 1964-03-04 Polyurethanes
FR7986A FR1430508A (en) 1964-03-04 1965-03-04 Polyurethanes for the production of elastomers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB919864A GB1078525A (en) 1964-03-04 1964-03-04 Polyurethanes

Publications (1)

Publication Number Publication Date
GB1078525A true GB1078525A (en) 1967-08-09

Family

ID=9867295

Family Applications (1)

Application Number Title Priority Date Filing Date
GB919864A Expired GB1078525A (en) 1964-03-04 1964-03-04 Polyurethanes

Country Status (2)

Country Link
FR (1) FR1430508A (en)
GB (1) GB1078525A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4442280A (en) * 1981-08-12 1984-04-10 Bayer Aktiengesellschaft Heterogeneous systems of polyol/diphenyl methane uret dione diisocyanates and a process for their production
GB2356673A (en) * 1999-11-15 2001-05-30 Gen Electric Aircraft engine fan blade and elastomer formulation for use in the construction thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4442280A (en) * 1981-08-12 1984-04-10 Bayer Aktiengesellschaft Heterogeneous systems of polyol/diphenyl methane uret dione diisocyanates and a process for their production
GB2356673A (en) * 1999-11-15 2001-05-30 Gen Electric Aircraft engine fan blade and elastomer formulation for use in the construction thereof
GB2356673B (en) * 1999-11-15 2004-05-12 Gen Electric Elastomeric formulation used in the construction of lightweight aircraft engine fan blades

Also Published As

Publication number Publication date
FR1430508A (en) 1966-03-04

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