CA1252979A - Continuous process for purifying crude linear polydichlorophosphazene polymer - Google Patents

Continuous process for purifying crude linear polydichlorophosphazene polymer

Info

Publication number
CA1252979A
CA1252979A CA000496128A CA496128A CA1252979A CA 1252979 A CA1252979 A CA 1252979A CA 000496128 A CA000496128 A CA 000496128A CA 496128 A CA496128 A CA 496128A CA 1252979 A CA1252979 A CA 1252979A
Authority
CA
Canada
Prior art keywords
polymer
oligomer
solvent
recited
rubber phase
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
CA000496128A
Other languages
English (en)
French (fr)
Inventor
William M. Cole
Charles R. Johnson
Vispi R. Sagar
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.)
Bridgestone Firestone Inc
Original Assignee
Firestone Tire and Rubber Co
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 Firestone Tire and Rubber Co filed Critical Firestone Tire and Rubber Co
Application granted granted Critical
Publication of CA1252979A publication Critical patent/CA1252979A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B21/00—Nitrogen; Compounds thereof
    • C01B21/082—Compounds containing nitrogen and non-metals and optionally metals
    • C01B21/097—Compounds containing nitrogen and non-metals and optionally metals containing phosphorus atoms
    • C01B21/098—Phosphonitrilic dihalides; Polymers thereof
    • C01B21/0986—Phosphonitrilic dichlorides; Polymers thereof

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
  • Polyesters Or Polycarbonates (AREA)
CA000496128A 1985-04-18 1985-11-25 Continuous process for purifying crude linear polydichlorophosphazene polymer Expired CA1252979A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US72469585A 1985-04-18 1985-04-18
US724,695 1991-07-02

Publications (1)

Publication Number Publication Date
CA1252979A true CA1252979A (en) 1989-04-25

Family

ID=24911490

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000496128A Expired CA1252979A (en) 1985-04-18 1985-11-25 Continuous process for purifying crude linear polydichlorophosphazene polymer

Country Status (3)

Country Link
EP (1) EP0198953A3 (https=)
JP (1) JPS61243829A (https=)
CA (1) CA1252979A (https=)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3742093A (en) * 1970-04-08 1973-06-26 Welding Engineers Method of separating an insoluble liquid from polymer composition
US3755537A (en) * 1971-10-29 1973-08-28 Firestone Tire & Rubber Co Process for separating oligomers from (npci2) rubber
JPS55123624A (en) * 1979-03-16 1980-09-24 Otsuka Chem Co Ltd Production of phosphagene polymer
US4241034A (en) * 1979-05-31 1980-12-23 Ethyl Corporation Process for purifying cyclic phosphonitrilic chlorides
US4226840A (en) * 1979-09-19 1980-10-07 The Firestone Tire & Rubber Company Process for the polymerization of cyclic polyhalophosphazenes using a catalyst composition of boron trihalide and oxygenated phosphorus compounds
US4327064A (en) * 1980-08-04 1982-04-27 The Firestone Tire & Rubber Company Solution polymerization of cyclic dichlorophosphazene oligomers in cycloaliphatic solvents

Also Published As

Publication number Publication date
EP0198953A3 (en) 1987-05-27
EP0198953A2 (en) 1986-10-29
JPH0461803B2 (https=) 1992-10-02
JPS61243829A (ja) 1986-10-30

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Legal Events

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