ES359199A1 - Continuous process for the production of alfin polymers - Google Patents

Continuous process for the production of alfin polymers

Info

Publication number
ES359199A1
ES359199A1 ES359199A ES359199A ES359199A1 ES 359199 A1 ES359199 A1 ES 359199A1 ES 359199 A ES359199 A ES 359199A ES 359199 A ES359199 A ES 359199A ES 359199 A1 ES359199 A1 ES 359199A1
Authority
ES
Spain
Prior art keywords
water
solvent
continuously
alfin
isoprene
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
ES359199A
Other languages
Spanish (es)
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.)
Millennium Petrochemicals Inc
Original Assignee
National Destillers and Chemical 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 National Destillers and Chemical Corp filed Critical National Destillers and Chemical Corp
Publication of ES359199A1 publication Critical patent/ES359199A1/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F36/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds
    • C08F36/02—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds
    • C08F36/04—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F10/00—Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/582—Recycling of unreacted starting or intermediate materials

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

Polymers are obtained by continuously blending alfin catalyst, monomer, solvent (or diluent) and molecular weight moderator, continuously polymerizing, continuously separating volatile materials (i) by flashing at a reduced pressure and elevated temperature at the end of polymerization and in the absence of water and of a catalyst deactivator, and. (ii) quenching the reaction mixture in water, and steam distilling the resulting dispersion, and thereafter recovering monomer and solvent and recycling them, and washing and drying the alfin polymer. The flashing step prior to watertreatment enables solvent free of acetylene and cyclopentadiene impurities to be obtained, since the latter are liberated from their sodium salts on contact with water. Suitable monomers are conjugated dienes and alkenyl aromatic compounds, the polymerization of butadiene and of isoprene, and the copolymerization of butadiene with styrene or with isoprene (exemplified) being particularly mentioned. Two detailed flow diagrams (not shown) are provided.
ES359199A 1967-10-04 1968-10-03 Continuous process for the production of alfin polymers Expired ES359199A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US67288267A 1967-10-04 1967-10-04

Publications (1)

Publication Number Publication Date
ES359199A1 true ES359199A1 (en) 1970-06-01

Family

ID=24700404

Family Applications (1)

Application Number Title Priority Date Filing Date
ES359199A Expired ES359199A1 (en) 1967-10-04 1968-10-03 Continuous process for the production of alfin polymers

Country Status (7)

Country Link
BE (1) BE721853A (en)
BR (1) BR6802868D0 (en)
DE (1) DE1800934A1 (en)
ES (1) ES359199A1 (en)
FR (1) FR1604618A (en)
GB (1) GB1245977A (en)
NL (1) NL6814275A (en)

Also Published As

Publication number Publication date
BE721853A (en) 1969-03-14
NL6814275A (en) 1969-04-09
FR1604618A (en) 1972-01-03
BR6802868D0 (en) 1973-01-02
GB1245977A (en) 1971-09-15
DE1800934A1 (en) 1969-04-30

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