GB339243A - Improvements in the manufacture and production of polymerisation of polymerisation products of diolefines - Google Patents

Improvements in the manufacture and production of polymerisation of polymerisation products of diolefines

Info

Publication number
GB339243A
GB339243A GB2645029A GB2645029A GB339243A GB 339243 A GB339243 A GB 339243A GB 2645029 A GB2645029 A GB 2645029A GB 2645029 A GB2645029 A GB 2645029A GB 339243 A GB339243 A GB 339243A
Authority
GB
United Kingdom
Prior art keywords
sodium
potassium
added
butadiene
diolefines
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
GB2645029A
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 GB2645029A priority Critical patent/GB339243A/en
Publication of GB339243A publication Critical patent/GB339243A/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

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

339,243. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Aug. 30, 1929. Caoutchouc, synthetic.-The polymerization of diolefines is effeeted in presence of alkali or alkaline earth metals or alloys' of them or of alkaline earth metal compounds with organic radicals which are not capable of ionization, the polymerizing agent being added gradually or in at least three fractions during the polymerization. Examples of suitable alloys are sodium-potassium, sodium-calcium, and sodium and potassium amalgams; and suitable organic compounds are sodium ethyl, potassium ethyl, potassium diphenylmethyl methane ((C6H5)2-CK-CH3), sodium triphenyl methane, potassium triphenyl methane, and lithium alkyls. The polymerizing-agents may be employed admixed with protective substances such as polymers of diolefines, rubber, paraffin, salt, or waxes. A part of the polymerizing-agent may be added to the diolefine at a temperature too low for any appreciable reaction, such as 0-10‹ C. Solvents such as hydrocarbons and ethers may be present. In the examples, (1) butadiene at 30‹ C. in an autoclave is treated with sodium which is pressed in the form of wire during 8 days; (2) sodium amalgam is added to butadiene at 0-6‹ C., and after two days the temperature is raised to 30-40‹ C. and sodium is added as described in the first example; (3) butadiene is mixed with a 1 per cent solution of potassium diphenylmethyl methane in ethyl ether, and further quantities of this solution are added after 12 hours and 3 hours respectively. Specification 307,308 (as open to inspection under Sect. 91 (3) (a) is referred to.
GB2645029A 1929-08-30 1929-08-30 Improvements in the manufacture and production of polymerisation of polymerisation products of diolefines Expired GB339243A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2645029A GB339243A (en) 1929-08-30 1929-08-30 Improvements in the manufacture and production of polymerisation of polymerisation products of diolefines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2645029A GB339243A (en) 1929-08-30 1929-08-30 Improvements in the manufacture and production of polymerisation of polymerisation products of diolefines

Publications (1)

Publication Number Publication Date
GB339243A true GB339243A (en) 1930-12-01

Family

ID=10243797

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2645029A Expired GB339243A (en) 1929-08-30 1929-08-30 Improvements in the manufacture and production of polymerisation of polymerisation products of diolefines

Country Status (1)

Country Link
GB (1) GB339243A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2849432A (en) * 1956-02-06 1958-08-26 Firestone Tire & Rubber Co Polymerization of diolefines
US3065218A (en) * 1959-02-05 1962-11-20 Shell Oil Co Polymerization of isoprene in aliphatic monoolefin solvent
US3078254A (en) * 1959-07-20 1963-02-19 Phillips Petroleum Co High molecular polymers and method for their preparation
US3147242A (en) * 1961-05-15 1964-09-01 Firestone Tire & Rubber Co Method of polymerizing a mixture of cis- and trans-piperylenes
US3149182A (en) * 1957-10-28 1964-09-15 Shell Oil Co Process for preparing block copolymers utilizing organolithium catalysts
US3193590A (en) * 1961-08-10 1965-07-06 Phillips Petroleum Co Method of preparing organolithium polymerization initiators
US3208988A (en) * 1961-10-24 1965-09-28 Firestone Tire & Rubber Co Polymerization of isoprene using a hydrocarbon polylithium catalyst
US3265680A (en) * 1957-09-11 1966-08-09 Firestone Tire & Rubber Co Polymerization of isoprene
US3669943A (en) * 1969-05-31 1972-06-13 Japan Synthetic Rubber Co Ltd Process for producing conjugated diolefin polymer with reduced cold flow

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2849432A (en) * 1956-02-06 1958-08-26 Firestone Tire & Rubber Co Polymerization of diolefines
US3265680A (en) * 1957-09-11 1966-08-09 Firestone Tire & Rubber Co Polymerization of isoprene
US3149182A (en) * 1957-10-28 1964-09-15 Shell Oil Co Process for preparing block copolymers utilizing organolithium catalysts
US3065218A (en) * 1959-02-05 1962-11-20 Shell Oil Co Polymerization of isoprene in aliphatic monoolefin solvent
US3078254A (en) * 1959-07-20 1963-02-19 Phillips Petroleum Co High molecular polymers and method for their preparation
US3147242A (en) * 1961-05-15 1964-09-01 Firestone Tire & Rubber Co Method of polymerizing a mixture of cis- and trans-piperylenes
US3193590A (en) * 1961-08-10 1965-07-06 Phillips Petroleum Co Method of preparing organolithium polymerization initiators
US3208988A (en) * 1961-10-24 1965-09-28 Firestone Tire & Rubber Co Polymerization of isoprene using a hydrocarbon polylithium catalyst
US3669943A (en) * 1969-05-31 1972-06-13 Japan Synthetic Rubber Co Ltd Process for producing conjugated diolefin polymer with reduced cold flow

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