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GB1207673A - New isocyanate compounds and the use thereof - Google Patents

New isocyanate compounds and the use thereof

Info

Publication number
GB1207673A
GB1207673A GB420767A GB420767A GB1207673A GB 1207673 A GB1207673 A GB 1207673A GB 420767 A GB420767 A GB 420767A GB 420767 A GB420767 A GB 420767A GB 1207673 A GB1207673 A GB 1207673A
Authority
GB
United Kingdom
Prior art keywords
pyridine
jan
catalyst
diisocyanatodiphenylmethane
substituted
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
GB420767A
Inventor
Gerald Patrick Crowley
Brian Edgar Evans
John Alwyn Hall
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
Publication of GB1207673A publication Critical patent/GB1207673A/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
    • C08G18/70—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
    • C08G18/02—Polymeric products of isocyanates or isothiocyanates of isocyanates or isothiocyanates only
    • C08G18/027—Polymeric products of isocyanates or isothiocyanates of isocyanates or isothiocyanates only the polymeric products containing urethodione 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
    • C08G18/08—Processes
    • C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

1,207,673. Diisocyanate polymers. IMPERIAL CHEMICAL INDUSTRIES Ltd. 29 Dec., 1967 [2 Jan., 1967; 27 Jan., 1967], Nos. 8856/67 and 4207/67. Divided out of 1,147,383. Heading C2C. [Also in Division C3] Linear polymers of 4,4<SP>1</SP> - diisocyanatodiphenylmethane containing in the molecule a plurality of uretedione groups may be prepared by treating 4,4<SP>1 </SP>- diisocyanatodiphenylmethane with pyridine, a substituted pyridine or a phosphine as catalyst in an organic solvent inert to isocyanates at a temperature of at most 50‹ C. The catalyst is suitably a pyridine substituted in the 3- or 4-position by an alkoxy, dialkylamino, alkylarylamino or N - hetero. cyclic radical or trimethyl-, triethyl- or phenyldimethyl - phosphines. Examples describe the preparation of uretediones which are basically dimers, trimers and tetramers or mixtures thereof of the starting materials.
GB420767A 1967-01-02 1967-01-02 New isocyanate compounds and the use thereof Expired GB1207673A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB885667 1967-01-02

Publications (1)

Publication Number Publication Date
GB1207673A true GB1207673A (en) 1970-10-07

Family

ID=9860580

Family Applications (1)

Application Number Title Priority Date Filing Date
GB420767A Expired GB1207673A (en) 1967-01-02 1967-01-02 New isocyanate compounds and the use thereof

Country Status (1)

Country Link
GB (1) GB1207673A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2176753A1 (en) * 1972-03-17 1973-11-02 Shell Int Research
EP0071899A1 (en) * 1981-08-12 1983-02-16 Bayer Ag Process for the preparation of low molecular weight 4.4'diphenyl-methane-uretdione diisocyanates
EP0071898A1 (en) * 1981-08-12 1983-02-16 Bayer Ag Heterogeneous one-component systems having an extended pot-life from polyol/diphenylmethane-uretdione diisocyanates, process for their preparation and their use in the synthesis of high-molecular polyurethanes
US4912210A (en) * 1987-11-21 1990-03-27 Huels Aktiengesellschaft Process for the preparation of (cyclo)aliphatic uretediones

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2176753A1 (en) * 1972-03-17 1973-11-02 Shell Int Research
EP0071899A1 (en) * 1981-08-12 1983-02-16 Bayer Ag Process for the preparation of low molecular weight 4.4'diphenyl-methane-uretdione diisocyanates
EP0071898A1 (en) * 1981-08-12 1983-02-16 Bayer Ag Heterogeneous one-component systems having an extended pot-life from polyol/diphenylmethane-uretdione diisocyanates, process for their preparation and their use in the synthesis of high-molecular polyurethanes
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
US4521338A (en) * 1981-08-12 1985-06-04 Bayer Aktiengesellschaft Process for the preparation of low molecular weight 4,4'-diphenylmethane-uretdione-diisocyanates
US4912210A (en) * 1987-11-21 1990-03-27 Huels Aktiengesellschaft Process for the preparation of (cyclo)aliphatic uretediones

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees