GB1218360A - Non-cellular polyurethanes - Google Patents

Non-cellular polyurethanes

Info

Publication number
GB1218360A
GB1218360A GB3189367A GB3189367A GB1218360A GB 1218360 A GB1218360 A GB 1218360A GB 3189367 A GB3189367 A GB 3189367A GB 3189367 A GB3189367 A GB 3189367A GB 1218360 A GB1218360 A GB 1218360A
Authority
GB
United Kingdom
Prior art keywords
reacting
mixture
resultant
cellular polyurethanes
aniline
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
GB3189367A
Inventor
David George Booth
Raymond Joseph Marklow
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 GB3189367A priority Critical patent/GB1218360A/en
Publication of GB1218360A publication Critical patent/GB1218360A/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
    • C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
    • C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
    • C08G18/7657—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings
    • C08G18/7664—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl 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
    • 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

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

1,218,360. Non-cellular polyurethanes. IMPERIAL CHEMICAL INDUSTRIES Ltd. 15 May, 1968 [11 July, 1967], No. 31893/67. Heading C3R. [Also in Division C2] Non-cellular polyurethanes are prepared by reacting a polyether with a stoichiometric excess of a diarylmethane diisocyanate composition obtained by reacting aniline or a mono-substituted nuclear derivative or mixture thereof with formaldehyde, there being an excess of the amine(s) in the reaction mixture, freeing the resultant mixture from unreacted starting material and reacting the resultant polyamine mixture with phosgene to convert the amino groups to isocyanate groups, and subsequently curing the resultant prepolymer by reaction with an aliphatic polyol. The preferred diisocyanate compositions are those prepared by reacting formaldehyde and aniline in a molar ratio of 1: 1À5 to 1: 5 in the presence of a Lewis acid, followed by separation of unreacted starting material and phosgenation. Polypropylene ether glycols of M.W. 500 to 4000 are the preferred polyethers. The aliphatic polyol may be a polyhydric alcohol, secondary or tertiary amino alcohols, polypropylene glycols or oxypropylated glycerols.
GB3189367A 1967-07-11 1967-07-11 Non-cellular polyurethanes Expired GB1218360A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3189367A GB1218360A (en) 1967-07-11 1967-07-11 Non-cellular polyurethanes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3189367A GB1218360A (en) 1967-07-11 1967-07-11 Non-cellular polyurethanes

Publications (1)

Publication Number Publication Date
GB1218360A true GB1218360A (en) 1971-01-06

Family

ID=10329973

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3189367A Expired GB1218360A (en) 1967-07-11 1967-07-11 Non-cellular polyurethanes

Country Status (1)

Country Link
GB (1) GB1218360A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2334728A1 (en) * 1975-12-10 1977-07-08 Bayer Ag COATING PREPARATION PROCESS
WO2005097860A1 (en) * 2004-04-05 2005-10-20 Bayer Materialscience Ag Low-hardness thermosetting polyurethane elastomer and production method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2334728A1 (en) * 1975-12-10 1977-07-08 Bayer Ag COATING PREPARATION PROCESS
US4296230A (en) 1975-12-10 1981-10-20 Bayer Aktiengesellschaft Polyurethane coatings produced from (1) a polyisocyanate mixture of polyisocyanates from the diphenol methane series and a polyhydroxy polyether containing at least one tertiary amine nitrogen with (2) a polyol in a two component coating system
WO2005097860A1 (en) * 2004-04-05 2005-10-20 Bayer Materialscience Ag Low-hardness thermosetting polyurethane elastomer and production method thereof

Similar Documents

Publication Publication Date Title
GB1205486A (en) Process for obtaining non-volatile, low molecular weight mono- and polyisocyanates containing tertiary amino groups
GB1115789A (en) Polyurethanes
GB1145952A (en) Isocyanate-containing oxadiazinones and the preparation thereof
GB1352810A (en) Polyurethane-based adhesives
GB1288688A (en)
GB1450660A (en) Polyisocyanates
GB1257888A (en)
DE2966876D1 (en) Modified diisocyanate compositions and polyurethanes thereof
GB1034851A (en) Polyurethanes
ES8305677A1 (en) Process for the preparation of polyamines and their use in the preparation of polyurethanes.
GB1474984A (en) Isocyanates
GB1444192A (en) Polyisocyanate compositions
GB1518009A (en) Polyurethanes
GB1165830A (en) Process for the preparation of Polyurethanes
GB949803A (en) Improvements in or relating to the production of amino ureas
GB1218360A (en) Non-cellular polyurethanes
GB1270354A (en) Improvements in sulphur-curable urethane crude rubbers
GB1339356A (en) Polyurea sealing gaskets
GB1156340A (en) Improved Cellular Polyurethane Products and process for preparing same
GB1191788A (en) Blends of Hydroxyl containing Polyethers and Polyether-Polyurethanes
ES8301252A1 (en) Process for the preparation of a polymer of the cross-linked polyurethane type having a tridimensional structure, product obtained by this process and its use as a swelling agent, especially therapeutically.
GB1351773A (en) Process for the manufacture of polyurethanes
GB1360019A (en) Process for the production of non-inflammable rigid foams containing urethane groups
ES453241A1 (en) Process for the preparation of stable heterogenous dispersions of polyisocyanate-polyaddition products
GB1221534A (en) Improvements relating to poromeric materials