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GB1031504A - Pyridine derivatives - Google Patents

Pyridine derivatives

Info

Publication number
GB1031504A
GB1031504A GB37460/62A GB3746062A GB1031504A GB 1031504 A GB1031504 A GB 1031504A GB 37460/62 A GB37460/62 A GB 37460/62A GB 3746062 A GB3746062 A GB 3746062A GB 1031504 A GB1031504 A GB 1031504A
Authority
GB
United Kingdom
Prior art keywords
interaction
mixture
specific conductivity
microhmo
initiation
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
GB37460/62A
Inventor
Ralph Santorre Fanshawe
Allan William Olleveant
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
Priority to BE638139D priority Critical patent/BE638139A/xx
Priority to BE638190D priority patent/BE638190A/xx
Priority to NL298616D priority patent/NL298616A/xx
Application filed by Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB37460/62A priority patent/GB1031504A/en
Priority to GB37459/62A priority patent/GB978307A/en
Priority to AT790763A priority patent/AT243265B/en
Priority to ES0292157A priority patent/ES292157A1/en
Priority to FR949502A priority patent/FR1377597A/en
Publication of GB1031504A publication Critical patent/GB1031504A/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
    • C08G18/7614—Polyisocyanates or polyisothiocyanates cyclic aromatic containing only one aromatic ring
    • C08G18/7621—Polyisocyanates or polyisothiocyanates cyclic aromatic containing only one aromatic ring being toluene diisocyanate including isomer mixtures
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F3/00—Compounds containing elements of Groups 2 or 12 of the Periodic Table
    • C07F3/003—Compounds containing elements of Groups 2 or 12 of the Periodic Table without C-Metal linkages
    • 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
    • C08G18/42—Polycondensates having carboxylic or carbonic ester groups in the main chain
    • 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
    • C08G18/50—Polyethers having heteroatoms other than oxygen
    • C08G18/5021—Polyethers having heteroatoms other than oxygen having nitrogen
    • 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
    • C08G2110/00—Foam properties
    • C08G2110/0016—Foam properties semi-rigid
    • 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
    • C08G2110/00—Foam properties
    • C08G2110/0025—Foam properties rigid
    • 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
    • C08G2110/00—Foam properties
    • C08G2110/0041—Foam properties having specified density
    • C08G2110/005—< 50kg/m3
    • 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
    • C08G2110/00—Foam properties
    • C08G2110/0083—Foam properties prepared using water as the sole blowing agent

Landscapes

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

Abstract

Metal-pyridines interaction products are prepared by the interaction of an alkali metal, Mg, Al or mixture thereof with pyridine or an alkyl pyridine or mixture thereof wherein the interacting mixture is maintained so that its specific conductivity is at least 200 microhmo. The interaction may be initiated, preferably rapidly, in known manner, during which initiation the specific conductivity varies considerably, and said initiation should be completed prior to control of the interaction by maintaining the specific conductivity at at least 200 microhmo. The conductivity is preferably measured by a pair of electrodes, preferably Pt. electrodes, inserted inside the interaction vessel and dipping into the bulk of the interaction mixture. Maintenance of the specified specific conductivity may be effected by regulation of temperature, rate of addition of further reactants as diluents or addition of initiator and agitation of the interaction to ensure a uniform mixture. The products of the invention may be converted into bipyridyls by known methods.
GB37460/62A 1962-10-03 1962-10-03 Pyridine derivatives Expired GB1031504A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
BE638139D BE638139A (en) 1962-10-03
BE638190D BE638190A (en) 1962-10-03
NL298616D NL298616A (en) 1962-10-03
GB37460/62A GB1031504A (en) 1962-10-03 1962-10-03 Pyridine derivatives
GB37459/62A GB978307A (en) 1962-10-03 1962-10-03 Improvements in or relating to the manufacture of foamed polyurethanes
AT790763A AT243265B (en) 1962-10-03 1963-10-02 Process for controlling the reaction of pyridine or an alkyl pyridine with a metal which is reactive towards pyridine or alkyl pyridine
ES0292157A ES292157A1 (en) 1962-10-03 1963-10-03 Improvements in or relating to the manufacture of foamed polyurethanes
FR949502A FR1377597A (en) 1962-10-03 1963-10-03 Polyurethane foams production process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB37460/62A GB1031504A (en) 1962-10-03 1962-10-03 Pyridine derivatives

Publications (1)

Publication Number Publication Date
GB1031504A true GB1031504A (en) 1966-06-02

Family

ID=10396654

Family Applications (2)

Application Number Title Priority Date Filing Date
GB37460/62A Expired GB1031504A (en) 1962-10-03 1962-10-03 Pyridine derivatives
GB37459/62A Expired GB978307A (en) 1962-10-03 1962-10-03 Improvements in or relating to the manufacture of foamed polyurethanes

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB37459/62A Expired GB978307A (en) 1962-10-03 1962-10-03 Improvements in or relating to the manufacture of foamed polyurethanes

Country Status (5)

Country Link
AT (1) AT243265B (en)
BE (2) BE638139A (en)
ES (1) ES292157A1 (en)
GB (2) GB1031504A (en)
NL (1) NL298616A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011025710A1 (en) * 2009-08-27 2011-03-03 Dow Global Technologies Llc Polyurethane spray foams having reduced cold substrate cracking

Also Published As

Publication number Publication date
AT243265B (en) 1965-11-10
BE638190A (en)
BE638139A (en)
ES292157A1 (en) 1963-12-16
GB978307A (en) 1964-12-23
NL298616A (en)

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