SE7500950L - - Google Patents

Info

Publication number
SE7500950L
SE7500950L SE7500950A SE7500950A SE7500950L SE 7500950 L SE7500950 L SE 7500950L SE 7500950 A SE7500950 A SE 7500950A SE 7500950 A SE7500950 A SE 7500950A SE 7500950 L SE7500950 L SE 7500950L
Authority
SE
Sweden
Prior art keywords
reaction
phosphonate
pentaerythritol
feb
formula
Prior art date
Application number
SE7500950A
Other languages
Unknown language ( )
Inventor
M Studer
P Hoffmann
Original Assignee
Ciba Geigy Ag
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 Ciba Geigy Ag filed Critical Ciba Geigy Ag
Publication of SE7500950L publication Critical patent/SE7500950L/

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00Polymeric products of isocyanates or isothiocyanates
    • C08G18/06Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/30Low-molecular-weight compounds
    • C08G18/38Low-molecular-weight compounds having heteroatoms other than oxygen
    • C08G18/3878Low-molecular-weight compounds having heteroatoms other than oxygen having phosphorus
    • C08G18/388Low-molecular-weight compounds having heteroatoms other than oxygen having phosphorus having phosphorus bound to carbon and/or to hydrogen
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07FACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F9/00Compounds containing elements of Groups 5 or 15 of the Periodic Table
    • C07F9/02Phosphorus compounds
    • C07F9/28Phosphorus compounds with one or more P—C bonds
    • C07F9/38Phosphonic acids [RP(=O)(OH)2]; Thiophosphonic acids ; [RP(=X1)(X2H)2(X1, X2 are each independently O, S or Se)]
    • C07F9/40Esters thereof

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Medicinal Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

1480127 Mixed phosphonate reaction products CIBA-GEIGY AG 18 Feb 1975 [20 Feb 1974] 6753/75 Heading C2P [Also in Division C3] The invention comprises a phosphonate mixture obtained by reacting 1 mol of pentaerythritol with 2 to 4 mols of dimethyl methanephosphonate at 50‹ to 200‹ C., and optionally subjecting the product to an aftertreatment with an alkylene oxide, (e.g. ethylene oxide or propylene oxide). The reaction can be carried out in the presence of a conventional transesterification catalyst and the methanol split off in the reaction is preferably continuously distilled off. When the molar ratio of pentaerythritol to phosphonate is 1 : 2 the product comprises a non-cyclic diphosphonate of the formula and cyclic diphosphonates, e.g. the compound: The reaction mixture also contains other phosphonates, e.g. those of the formula wherein n is an integer, e.g. 1 to 5, and especially 1 or 2. Compounds containing free phosphonic acid groups may also be present especially when the reaction is effected at above 150‹ C. The products are useful as reactive flameretardants in the production of polyurethane foams.
SE7500950A 1974-02-20 1975-01-29 SE7500950L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH234874 1974-02-20

Publications (1)

Publication Number Publication Date
SE7500950L true SE7500950L (en) 1975-08-21

Family

ID=4231689

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7500950A SE7500950L (en) 1974-02-20 1975-01-29

Country Status (13)

Country Link
JP (1) JPS50119059A (en)
AU (1) AU7834075A (en)
BE (1) BE825688A (en)
BR (1) BR7501019A (en)
DD (1) DD119242A5 (en)
DE (1) DE2506599A1 (en)
ES (1) ES434836A1 (en)
FR (1) FR2273054B1 (en)
GB (1) GB1480127A (en)
IL (1) IL46665A0 (en)
NL (1) NL7502037A (en)
SE (1) SE7500950L (en)
ZA (1) ZA751061B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4133846A (en) * 1977-06-30 1979-01-09 Velsicol Chemical Corporation Hydroxyl containing phosphates and polyphosphates
DE3803030C2 (en) * 1988-02-02 1995-04-06 Boehme Chem Fab Kg Use of phosphonates as flame retardants in plastics
CN110283351A (en) * 2019-04-28 2019-09-27 中北大学 A kind of flame retarded rigid polyurethane foams plastics and preparation method thereof
CN111004379B (en) * 2019-12-02 2022-03-15 浙江理工大学桐乡研究院有限公司 Preparation method of flame-retardant polyol with high phosphorus content and multiple functionality degrees

Also Published As

Publication number Publication date
FR2273054A1 (en) 1975-12-26
FR2273054B1 (en) 1977-04-15
ES434836A1 (en) 1976-12-16
NL7502037A (en) 1975-08-22
ZA751061B (en) 1976-01-28
BE825688A (en) 1975-08-19
DD119242A5 (en) 1976-04-12
BR7501019A (en) 1975-12-02
DE2506599A1 (en) 1975-08-21
IL46665A0 (en) 1975-04-25
GB1480127A (en) 1977-07-20
JPS50119059A (en) 1975-09-18
AU7834075A (en) 1976-08-19

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