JPS56139540A - Rubber composition and tire by use of same - Google Patents

Rubber composition and tire by use of same

Info

Publication number
JPS56139540A
JPS56139540A JP4197280A JP4197280A JPS56139540A JP S56139540 A JPS56139540 A JP S56139540A JP 4197280 A JP4197280 A JP 4197280A JP 4197280 A JP4197280 A JP 4197280A JP S56139540 A JPS56139540 A JP S56139540A
Authority
JP
Japan
Prior art keywords
rubber
butadiene
rubber composition
propylene
raw material
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
JP4197280A
Other languages
Japanese (ja)
Inventor
Hiroshi Hirakawa
Tomohiro Awane
Makoto Misawa
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.)
Yokohama Rubber Co Ltd
Original Assignee
Yokohama 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 Yokohama Rubber Co Ltd filed Critical Yokohama Rubber Co Ltd
Priority to JP4197280A priority Critical patent/JPS56139540A/en
Publication of JPS56139540A publication Critical patent/JPS56139540A/en
Pending legal-status Critical Current

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  • Compositions Of Macromolecular Compounds (AREA)

Abstract

PURPOSE: A rubber composition useful for the preparation of a rubber having little temperature-dependent physical properties, high hardness, high modulus and low hysteresis loss, obtd. by the addition of surfur to a raw material rubber contg. a propylene-butadiene alternating copolymer.
CONSTITUTION: A rubber composition comprising at least 2.5pts.wt. sulfur and 100pts.wt. raw material rubber contg. 25pts.wt. or more propylene-butadiene altenating copolymer rubber. The propylene-butadiene alternating copolymer rubber to be used is the one of Mooney viscosity 30W90, in which 90% or more butadiene units are of 1,4-structure. It is impossible to give sufficient hardness by using less than 25pts.wt. said copolymer rubber. The rubber composition is utilized as raw material for rubber material used near the bead portion of a tire and a rubber material used for an industrial appliance which requires high hardness.
COPYRIGHT: (C)1981,JPO&Japio
JP4197280A 1980-04-02 1980-04-02 Rubber composition and tire by use of same Pending JPS56139540A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4197280A JPS56139540A (en) 1980-04-02 1980-04-02 Rubber composition and tire by use of same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4197280A JPS56139540A (en) 1980-04-02 1980-04-02 Rubber composition and tire by use of same

Publications (1)

Publication Number Publication Date
JPS56139540A true JPS56139540A (en) 1981-10-31

Family

ID=12623103

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4197280A Pending JPS56139540A (en) 1980-04-02 1980-04-02 Rubber composition and tire by use of same

Country Status (1)

Country Link
JP (1) JPS56139540A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012180402A (en) * 2011-02-28 2012-09-20 Bridgestone Corp Rubber composition, crosslinked rubber composition, and tire
JP2012180427A (en) * 2011-02-28 2012-09-20 Bridgestone Corp Rubber composition, crosslinked rubber composition, and tire
JP2013067675A (en) * 2011-09-20 2013-04-18 Bridgestone Corp Composition for rubber crawler, and rubber crawler using the same
JP2013079338A (en) * 2011-10-04 2013-05-02 Bridgestone Corp Rubber composition for crawler and rubber crawler using the same

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012180402A (en) * 2011-02-28 2012-09-20 Bridgestone Corp Rubber composition, crosslinked rubber composition, and tire
JP2012180427A (en) * 2011-02-28 2012-09-20 Bridgestone Corp Rubber composition, crosslinked rubber composition, and tire
JP2013067675A (en) * 2011-09-20 2013-04-18 Bridgestone Corp Composition for rubber crawler, and rubber crawler using the same
JP2013079338A (en) * 2011-10-04 2013-05-02 Bridgestone Corp Rubber composition for crawler and rubber crawler using the same

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