GB1512966A - Phosphazene flame retardants - Google Patents

Phosphazene flame retardants

Info

Publication number
GB1512966A
GB1512966A GB20163/75A GB2016375A GB1512966A GB 1512966 A GB1512966 A GB 1512966A GB 20163/75 A GB20163/75 A GB 20163/75A GB 2016375 A GB2016375 A GB 2016375A GB 1512966 A GB1512966 A GB 1512966A
Authority
GB
United Kingdom
Prior art keywords
phosphazene
halogen
hydrocarbyloxylated
phosphazenes
ethyl
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
GB20163/75A
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.)
Ethyl Corp
Original Assignee
Ethyl Corp
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 Ethyl Corp filed Critical Ethyl Corp
Priority to GB20163/75A priority Critical patent/GB1512966A/en
Publication of GB1512966A publication Critical patent/GB1512966A/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
    • C08G79/00—Macromolecular compounds obtained by reactions forming a linkage containing atoms other than silicon, sulfur, nitrogen, oxygen, and carbon with or without the latter elements in the main chain of the macromolecule
    • C08G79/02—Macromolecular compounds obtained by reactions forming a linkage containing atoms other than silicon, sulfur, nitrogen, oxygen, and carbon with or without the latter elements in the main chain of the macromolecule a linkage containing phosphorus
    • C08G79/025—Polyphosphazenes
    • 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
    • C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic System
    • C07F9/02—Phosphorus compounds
    • C07F9/06—Phosphorus compounds without P—C bonds
    • C07F9/062—Organo-phosphoranes without P-C bonds
    • C07F9/065—Phosphoranes containing the structure P=N-
    • 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
    • C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic System
    • C07F9/02—Phosphorus compounds
    • C07F9/06—Phosphorus compounds without P—C bonds
    • C07F9/062—Organo-phosphoranes without P-C bonds
    • C07F9/065—Phosphoranes containing the structure P=N-
    • C07F9/067—Polyphosphazenes containing the structure [P=N-n]

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

1512966 Modified phosphazene derivatives ETHYL CORP 13 May 1975 20163/75 Heading C2P [Also in Divisions C3 and D1] A modified phosphazene fire retardant is obtained by reacting a substantially fully hydrocarbyloxylated phosphazene and a partially hydrocarbyloxylated phosphazene at mildly elevated temperature such that organic halide is split out; (a) said substantially fully hydrocarbyloxylated phosphazene being one containing not more than 2% by weight halogen bonded to phosphorus and having the formula wherein n is at least 3 and R is an optionally halogensubstituted hydrocarbyl radical; and (b) said partially hydrocarbyloxylated phosphazene having the formula wherein n is at least 3 and T is halogen or -OR wherein R is an optionally halogen substituted hydrocarbyl radical, provided that from 60 to 95% of the T groups are OR and the remainder are halogen. The phosphazene reactants are preferably composed of at least 65% cyclics and preferably have a number average molecular weight of from 400 to 10,000. The group R may be alkyl, cycloalkyl, alkenyl, alkaryl, aryl or benzyl and may have halogen substituents and different R groups may be present in each of the phosphazenes used. The reaction between the phosphazenes is suitably effected at from 80‹ to 220‹ C. and may be conducted in an inert liquid medium such as toluene or other hydrocarbon and an inert gas atmosphere, e.g. of nitrogen or argon may also be used. Examples are given in which the group R in the phosphazenes used is propyl and the use of phosphazene reactants in which R is ethyl, n-butyl, a 50-50 mixture of ethyl and n-butyl, phenyl and n-heptyl respectively is also referred to. The products are useful as flame-retardants for cellulose materials. Examples are also given for preparing propoxy phosphazenes of type (a) and (b) and for preparing phosphonitrilic chlorides which are used in their preparation by reaction with the corresponding hydroxy compound or metal derivative thereof.
GB20163/75A 1975-05-13 1975-05-13 Phosphazene flame retardants Expired GB1512966A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB20163/75A GB1512966A (en) 1975-05-13 1975-05-13 Phosphazene flame retardants

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB20163/75A GB1512966A (en) 1975-05-13 1975-05-13 Phosphazene flame retardants

Publications (1)

Publication Number Publication Date
GB1512966A true GB1512966A (en) 1978-06-01

Family

ID=10141432

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20163/75A Expired GB1512966A (en) 1975-05-13 1975-05-13 Phosphazene flame retardants

Country Status (1)

Country Link
GB (1) GB1512966A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0008607A1 (en) * 1978-06-28 1980-03-19 The Firestone Tire & Rubber Company Oil-free elastomeric poly(aryloxyphosphazene) copolymers
EP0185318A1 (en) * 1984-12-18 1986-06-25 Ethyl Corporation Aryloxy-alkoxy substituted polphosphazenes
EP1104766A1 (en) * 1998-08-13 2001-06-06 Otsuka Chemical Company, Limited Cross-linked phenoxyphosphazene compound, process for producing the same, flame retardant, flame-retardant resin composition, and molded flame-retardant resin

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0008607A1 (en) * 1978-06-28 1980-03-19 The Firestone Tire & Rubber Company Oil-free elastomeric poly(aryloxyphosphazene) copolymers
EP0185318A1 (en) * 1984-12-18 1986-06-25 Ethyl Corporation Aryloxy-alkoxy substituted polphosphazenes
EP1104766A1 (en) * 1998-08-13 2001-06-06 Otsuka Chemical Company, Limited Cross-linked phenoxyphosphazene compound, process for producing the same, flame retardant, flame-retardant resin composition, and molded flame-retardant resin
EP1104766A4 (en) * 1998-08-13 2001-10-31 Cross-linked phenoxyphosphazene compound, process for producing the same, flame retardant, flame-retardant resin composition, and molded flame-retardant resin
US6528559B1 (en) 1998-08-13 2003-03-04 Otsuka Chemical Co., Ltd. Crosslinked phenoxyphosphazene compounds, process for the preparation thereof, flame retardants, flame-retardant resin compositions, and moldings of flame-retardant resins

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee