JPS57125206A - Preparation of reinforced polybutadiene rubber - Google Patents

Preparation of reinforced polybutadiene rubber

Info

Publication number
JPS57125206A
JPS57125206A JP972081A JP972081A JPS57125206A JP S57125206 A JPS57125206 A JP S57125206A JP 972081 A JP972081 A JP 972081A JP 972081 A JP972081 A JP 972081A JP S57125206 A JPS57125206 A JP S57125206A
Authority
JP
Japan
Prior art keywords
butadiene
polymerization
rubber
polymerizing
give
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.)
Pending
Application number
JP972081A
Other languages
Japanese (ja)
Inventor
Haruo Ueno
Hidetomo Ashitaka
Kazuya Jinda
Tanetoshi Inaishi
Koichi Nakajima
Masao Watanabe
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.)
Ube Corp
Original Assignee
Ube Industries 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 Ube Industries Ltd filed Critical Ube Industries Ltd
Priority to JP972081A priority Critical patent/JPS57125206A/en
Publication of JPS57125206A publication Critical patent/JPS57125206A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To obtain the titled rubber in high yield, being vulcanized to provide a rubber product having improved tear resistance and flex cracking characteristics, by polymerizing 1,3-butadiene in the presence of a specific catalyst for 1,2- polymerization, followed by polymerizing it using a specified catalyst for cis- 1,4-polymerization.
CONSTITUTION: 1,3-Butadiene is polymerized in the presence of a 1,2-polymerization catalyst obtained from (A) 1mol cobalt-butadiene complex[e.g., Co(C4H6) (C8H13), etc.]and 0.002W1,000mol CS2 in an inert organic solvent (e.g., benzene, etc.) in such a way that the amount of the component A is 5×10-6W1×10-2mol based on 1,3-butadiene, to give 1,2-polybutadiene. In this polymerization system, 1,3-butadiene is subjected to 1,4-polymerization using (C) ≥0.005mmol based on 1,3-butadiene of a soluble Co compound (e.g., Co-butadiene complex, etc.) and (D) ≥0.5 mil organoaluminum compound[e.g., (C2H5)2AlCl, etc.]shown by the formula (R is 1W6C alkyl, etc.; X is halogen; n is 1.5W2), to give the desired rubber having an insoluble content in boiling n-hexane of 5W30wt%.
COPYRIGHT: (C)1982,JPO&Japio
JP972081A 1981-01-27 1981-01-27 Preparation of reinforced polybutadiene rubber Pending JPS57125206A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP972081A JPS57125206A (en) 1981-01-27 1981-01-27 Preparation of reinforced polybutadiene rubber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP972081A JPS57125206A (en) 1981-01-27 1981-01-27 Preparation of reinforced polybutadiene rubber

Publications (1)

Publication Number Publication Date
JPS57125206A true JPS57125206A (en) 1982-08-04

Family

ID=11728121

Family Applications (1)

Application Number Title Priority Date Filing Date
JP972081A Pending JPS57125206A (en) 1981-01-27 1981-01-27 Preparation of reinforced polybutadiene rubber

Country Status (1)

Country Link
JP (1) JPS57125206A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9982115B2 (en) 2013-12-03 2018-05-29 Bridgestone Corporation Process for preparing blends of cis-1,4-polybutadiene and syndiotactic 1,2-polybutadiene
WO2020122108A1 (en) * 2018-12-13 2020-06-18 Jsr株式会社 Polybutadiene composition and method for producing same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9982115B2 (en) 2013-12-03 2018-05-29 Bridgestone Corporation Process for preparing blends of cis-1,4-polybutadiene and syndiotactic 1,2-polybutadiene
WO2020122108A1 (en) * 2018-12-13 2020-06-18 Jsr株式会社 Polybutadiene composition and method for producing same

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