JPS57205414A - Production of styrene/butadiene rubber - Google Patents

Production of styrene/butadiene rubber

Info

Publication number
JPS57205414A
JPS57205414A JP8936981A JP8936981A JPS57205414A JP S57205414 A JPS57205414 A JP S57205414A JP 8936981 A JP8936981 A JP 8936981A JP 8936981 A JP8936981 A JP 8936981A JP S57205414 A JPS57205414 A JP S57205414A
Authority
JP
Japan
Prior art keywords
temperature
styrene
agitation
reaction
solvent
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.)
Granted
Application number
JP8936981A
Other languages
Japanese (ja)
Other versions
JPH0157689B2 (en
Inventor
Yasumasa Takeuchi
Mitsuhiko Sakakibara
Kaoru Chuko
Tadao Sato
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
Nippon Synthetic Chemical Industry Co Ltd
Original Assignee
Nippon Synthetic Chemical Industry Co Ltd
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
Application filed by Nippon Synthetic Chemical Industry Co Ltd, Japan Synthetic Rubber Co Ltd filed Critical Nippon Synthetic Chemical Industry Co Ltd
Priority to JP8936981A priority Critical patent/JPS57205414A/en
Publication of JPS57205414A publication Critical patent/JPS57205414A/en
Publication of JPH0157689B2 publication Critical patent/JPH0157689B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Polymerisation Methods In General (AREA)
  • Polymerization Catalysts (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

PURPOSE: To obtain the titled copolymer having improved rolling resistance and breaking characteristic, by charging a specified volume of a polymerization vessel with a solvent and a monomer mixture of styrene and butadiene in the presence of a catalyst and adding thereto a metal halide under a specified condition of agitation.
CONSTITUTION: In producing a styrene/butadiene copolymer in the presence of an organolithium catalyst and a Lewis base; at least 90% of the polymerization vessel is charged with the monomers and a solvent. Then, the polymerization reaction is carried out under a condition of agitation to provide a Reynolds number of 150, while the temperature is slowly raised. After the temperature in the system reaches a peak, the agitation is intensified so that a Reynolds number at least twice the initial value is obtained, and a halide of a metal selected from silicon, germanium and tin is added to effect a coupling reaction. It is necessary to raise the reaction temperature slowly, and it is preferred that the reaction temperature is slowly raised from a temperature of -20W50°C, for example, at a rate of about 3W15°C/min, and the maximum temperature does not exceed 150°C.
COPYRIGHT: (C)1982,JPO&Japio
JP8936981A 1981-06-10 1981-06-10 Production of styrene/butadiene rubber Granted JPS57205414A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8936981A JPS57205414A (en) 1981-06-10 1981-06-10 Production of styrene/butadiene rubber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8936981A JPS57205414A (en) 1981-06-10 1981-06-10 Production of styrene/butadiene rubber

Publications (2)

Publication Number Publication Date
JPS57205414A true JPS57205414A (en) 1982-12-16
JPH0157689B2 JPH0157689B2 (en) 1989-12-07

Family

ID=13968773

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8936981A Granted JPS57205414A (en) 1981-06-10 1981-06-10 Production of styrene/butadiene rubber

Country Status (1)

Country Link
JP (1) JPS57205414A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4225234A1 (en) * 1991-07-31 1993-02-04 Bridgestone Corp RUBBER COMPOSITION FROM THE CONJUGATED SERIES RANGE
US6150487A (en) * 1995-10-17 2000-11-21 China Petrochemical Corporation Multifunctional organic alkali metal initiator and its synthesis, anionic polymerized star polymers and their preparation

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4225234A1 (en) * 1991-07-31 1993-02-04 Bridgestone Corp RUBBER COMPOSITION FROM THE CONJUGATED SERIES RANGE
DE4225234C2 (en) * 1991-07-31 1996-04-18 Bridgestone Corp Rubber composition from the series of conjugated dienes
US6150487A (en) * 1995-10-17 2000-11-21 China Petrochemical Corporation Multifunctional organic alkali metal initiator and its synthesis, anionic polymerized star polymers and their preparation

Also Published As

Publication number Publication date
JPH0157689B2 (en) 1989-12-07

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