GB338534A - Improvements in the polymerisation of diolefines - Google Patents

Improvements in the polymerisation of diolefines

Info

Publication number
GB338534A
GB338534A GB2516229A GB2516229A GB338534A GB 338534 A GB338534 A GB 338534A GB 2516229 A GB2516229 A GB 2516229A GB 2516229 A GB2516229 A GB 2516229A GB 338534 A GB338534 A GB 338534A
Authority
GB
United Kingdom
Prior art keywords
particles
polymerized
butadiene
sodium
addition
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
GB2516229A
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie 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 IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Priority to GB2516229A priority Critical patent/GB338534A/en
Publication of GB338534A publication Critical patent/GB338534A/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

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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

338,534. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Aug. 17, 1929. Caoutchouc, synthetic.-The polymerization of diolefines is effected in presence of alkali or alkaline earth metals or their alloys in particles of uniform size, that is to say, the average diameters of the various particles do not differ by more than 10 per cent. The particles may be made by sieving the mixed particles produced by comminuting the metal in liquids or by extending the metal as wire which is mechanically cut into uniform pieces. The polymerization may be effected in presence of solvents or diluents or substances which favourably influence the reaction such as dioxane, vinyl ethers and acetals, and the temperature may be between 0‹ C. and 90‹ C. In examples (1) butadiene with the addition of dioxane is polymerized in presence of balls of sodium of 1.1 mm. diameter at 40‹ C. in an iron autoclave maintained in rolling motion; (2) butadiene with an addition of vinyl, ethyl ethers is polymerized in presence of the balls of sodium in a stirring autoclave; (3) butadiene with an addition of vinyl ethyl ether is polymerized in presence of sodium in pieces of 0.35 mm. diameter in a rotating autoclave.
GB2516229A 1929-08-17 1929-08-17 Improvements in the polymerisation of diolefines Expired GB338534A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2516229A GB338534A (en) 1929-08-17 1929-08-17 Improvements in the polymerisation of diolefines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2516229A GB338534A (en) 1929-08-17 1929-08-17 Improvements in the polymerisation of diolefines

Publications (1)

Publication Number Publication Date
GB338534A true GB338534A (en) 1930-11-17

Family

ID=10223225

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2516229A Expired GB338534A (en) 1929-08-17 1929-08-17 Improvements in the polymerisation of diolefines

Country Status (1)

Country Link
GB (1) GB338534A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3030432A (en) * 1957-03-28 1962-04-17 Phillips Petroleum Co Polymerization of conjugated dienes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3030432A (en) * 1957-03-28 1962-04-17 Phillips Petroleum Co Polymerization of conjugated dienes

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