JPS57109818A - Styrene-butadiene block copolymer - Google Patents

Styrene-butadiene block copolymer

Info

Publication number
JPS57109818A
JPS57109818A JP18619580A JP18619580A JPS57109818A JP S57109818 A JPS57109818 A JP S57109818A JP 18619580 A JP18619580 A JP 18619580A JP 18619580 A JP18619580 A JP 18619580A JP S57109818 A JPS57109818 A JP S57109818A
Authority
JP
Japan
Prior art keywords
content
copolymer
block
bonded
vinyl bond
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
JP18619580A
Other languages
Japanese (ja)
Other versions
JPS6360770B2 (en
Inventor
Yasumasa Takeuchi
Mitsuhiko Sakakibara
Fumio Tsutsumi
Akio Takashima
Iwakazu Hattori
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 JP18619580A priority Critical patent/JPS57109818A/en
Priority to US06/330,862 priority patent/US4433109A/en
Priority to EP19810305931 priority patent/EP0054440B1/en
Priority to EP19840106266 priority patent/EP0134909B1/en
Publication of JPS57109818A publication Critical patent/JPS57109818A/en
Publication of JPS6360770B2 publication Critical patent/JPS6360770B2/ja
Granted legal-status Critical Current

Links

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  • Graft Or Block Polymers (AREA)

Abstract

PURPOSE: To provide the titled copolymer composed of 3-kinds of polymer blocks having different vinyl bond content in the butadiene (Bd) segment and bonded styrene (St) content, and having specific Mooney viscosity and excellent wet-skid resistance, rolling friction resistance, etc.
CONSTITUTION: The titled A-B-C type copolymer is composed of (A) a poly-Bd block having a vinyl bond content of 10W50wt%, (B) a copolymer block having a bonded styrene content of 10W50wt% and a vinyl bond content in the Bd segment of 10W50wt%, and (C) a copolymer block having a bonded St content of 1W30wt%, and a vinyl bond content in the Bd segment of ≥60wt%, wherein the amount of each block in the copolymer is ≥10wt%, the total bonded St content in the block copolymer is 10W40wt% and the total content of the vinyl structure in the whole bonded Bd is 30W70wt%. The copolymer can be prepared by charging predetermined amounts of Bd and St in a reactor together with a micro- structure controlling agent (e.g. tetrahydrofuran), and carrying out the polymerization to obtain the blocks in an arbitrary order.
COPYRIGHT: (C)1982,JPO&Japio
JP18619580A 1980-12-17 1980-12-26 Styrene-butadiene block copolymer Granted JPS57109818A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP18619580A JPS57109818A (en) 1980-12-26 1980-12-26 Styrene-butadiene block copolymer
US06/330,862 US4433109A (en) 1980-12-17 1981-12-15 Styrene-butadiene block copolymer
EP19810305931 EP0054440B1 (en) 1980-12-17 1981-12-17 Styrene-butadiene block copolymer
EP19840106266 EP0134909B1 (en) 1980-12-17 1981-12-17 Styrene-butadiene block copolymer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18619580A JPS57109818A (en) 1980-12-26 1980-12-26 Styrene-butadiene block copolymer

Publications (2)

Publication Number Publication Date
JPS57109818A true JPS57109818A (en) 1982-07-08
JPS6360770B2 JPS6360770B2 (en) 1988-11-25

Family

ID=16184041

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18619580A Granted JPS57109818A (en) 1980-12-17 1980-12-26 Styrene-butadiene block copolymer

Country Status (1)

Country Link
JP (1) JPS57109818A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58154711A (en) * 1982-03-11 1983-09-14 Mitsubishi Chem Ind Ltd Styrene/conjugated diene rubber
WO1987006250A1 (en) * 1986-04-10 1987-10-22 Sumitomo Chemical Company, Limited Rubber composition
US4812527A (en) * 1986-10-30 1989-03-14 Sumitomo Chemical Company, Limited Rubber composition for tire treads containing dicarboxylic acid diester coupled block polymers
US4918142A (en) * 1986-11-29 1990-04-17 Sumitomo Chemical Company, Limited Rubber composition of tire tread containing block copolymer coupled with dicarboxylic acid ester

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4937415A (en) * 1972-08-09 1974-04-08
JPS556651A (en) * 1978-06-30 1980-01-18 Iseki & Co Ltd Stepless speed change driving gear of farm machine
JPS6360769A (en) * 1986-09-01 1988-03-16 Nikon Corp Thermal head

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4937415A (en) * 1972-08-09 1974-04-08
JPS556651A (en) * 1978-06-30 1980-01-18 Iseki & Co Ltd Stepless speed change driving gear of farm machine
JPS6360769A (en) * 1986-09-01 1988-03-16 Nikon Corp Thermal head

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58154711A (en) * 1982-03-11 1983-09-14 Mitsubishi Chem Ind Ltd Styrene/conjugated diene rubber
WO1987006250A1 (en) * 1986-04-10 1987-10-22 Sumitomo Chemical Company, Limited Rubber composition
US4812527A (en) * 1986-10-30 1989-03-14 Sumitomo Chemical Company, Limited Rubber composition for tire treads containing dicarboxylic acid diester coupled block polymers
US4918142A (en) * 1986-11-29 1990-04-17 Sumitomo Chemical Company, Limited Rubber composition of tire tread containing block copolymer coupled with dicarboxylic acid ester

Also Published As

Publication number Publication date
JPS6360770B2 (en) 1988-11-25

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