FR2084989A5 - Phosphate ester diene polymerisation in-hibitor - Google Patents

Phosphate ester diene polymerisation in-hibitor

Info

Publication number
FR2084989A5
FR2084989A5 FR7110006A FR7110006A FR2084989A5 FR 2084989 A5 FR2084989 A5 FR 2084989A5 FR 7110006 A FR7110006 A FR 7110006A FR 7110006 A FR7110006 A FR 7110006A FR 2084989 A5 FR2084989 A5 FR 2084989A5
Authority
FR
France
Prior art keywords
phosphate ester
polymerisation
hibitor
alkyl
substd
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
FR7110006A
Other languages
French (fr)
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.)
JSR Corp
Original Assignee
Japan Synthetic Rubber Co 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 claimed from JP2374070A external-priority patent/JPS497126B1/ja
Priority claimed from JP6003470A external-priority patent/JPS497127B1/ja
Priority claimed from JP8736670A external-priority patent/JPS496886B1/ja
Application filed by Japan Synthetic Rubber Co Ltd filed Critical Japan Synthetic Rubber Co Ltd
Application granted granted Critical
Publication of FR2084989A5 publication Critical patent/FR2084989A5/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C7/00—Purification; Separation; Use of additives
    • C07C7/20—Use of additives, e.g. for stabilisation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Water Supply & Treatment (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Polymerisation Methods In General (AREA)

Abstract

Polymerisation of conjugated dienes in solvents at high temps is inhibited by adding a phosphate ester of formula: R2 - O - = O pyridine or quinoline opt. substd by alkyl, and/or anthracene to the soln. (where R1-3 are each (halo) alkyl, allyl, or phenyl opt. substd by alkyl, phenyl or halogens). Used during the separation of butadiene and isoprene from their mixtures with other hydrocarbons: by extractive distillation with solvents such as acetonitrile and N-methylpyrrolidone. Polymerisation of the dienes is effectively inhibited.
FR7110006A 1970-03-20 1971-03-22 Phosphate ester diene polymerisation in-hibitor Expired FR2084989A5 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2374070A JPS497126B1 (en) 1970-03-20 1970-03-20
JP6003470A JPS497127B1 (en) 1970-07-09 1970-07-09
JP8736670A JPS496886B1 (en) 1970-10-05 1970-10-05

Publications (1)

Publication Number Publication Date
FR2084989A5 true FR2084989A5 (en) 1971-12-17

Family

ID=27284377

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7110006A Expired FR2084989A5 (en) 1970-03-20 1971-03-22 Phosphate ester diene polymerisation in-hibitor

Country Status (3)

Country Link
DE (1) DE2166126A1 (en)
ES (1) ES389323A1 (en)
FR (1) FR2084989A5 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4238948B2 (en) * 1999-04-08 2009-03-18 日本ゼオン株式会社 A method for preventing clogging of a separation and purification apparatus for a hydrocarbon mixture containing a conjugated diene.

Also Published As

Publication number Publication date
ES389323A1 (en) 1974-03-16
DE2166126A1 (en) 1973-04-26
DE2112705B2 (en) 1975-08-07
DE2112705A1 (en) 1971-10-14

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Legal Events

Date Code Title Description
ST Notification of lapse