JPS5647449A - Asphalt composition for low-temperature service - Google Patents

Asphalt composition for low-temperature service

Info

Publication number
JPS5647449A
JPS5647449A JP12482079A JP12482079A JPS5647449A JP S5647449 A JPS5647449 A JP S5647449A JP 12482079 A JP12482079 A JP 12482079A JP 12482079 A JP12482079 A JP 12482079A JP S5647449 A JPS5647449 A JP S5647449A
Authority
JP
Japan
Prior art keywords
asphalt
low
glass transition
transition temperature
asphalt composition
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
JP12482079A
Other languages
Japanese (ja)
Inventor
Koji Kubo
Shigeru Kurushima
Toshio Nishi
Shigetaka 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.)
Bridgestone Corp
Original Assignee
Bridgestone Corp
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 Bridgestone Corp filed Critical Bridgestone Corp
Priority to JP12482079A priority Critical patent/JPS5647449A/en
Publication of JPS5647449A publication Critical patent/JPS5647449A/en
Pending legal-status Critical Current

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  • Compositions Of Macromolecular Compounds (AREA)

Abstract

PURPOSE: To prepare an asphalt composition having improved low-temperature characteristics and excellent low-temperature resistance without much increasing the viscosity of the composition at the mixing stage, by compounding an asphalt with a molten rubber having low glass transition temperature.
CONSTITUTION: 100pts.wt. of asphalt, e.g. straight asphalt having a glass transition temperature of about -20°C is mixed with 2W300pts.wt., pref. 5W100pts.wt. of molten vulcanized rubber and/or green rubber having a glass transition temperature lower than that of the asphalt, pref. by ≥20°C.
EFFECT: Since the waste tire, etc. can be used as the raw material, the process is resource saving and economical.
COPYRIGHT: (C)1981,JPO&Japio
JP12482079A 1979-09-28 1979-09-28 Asphalt composition for low-temperature service Pending JPS5647449A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12482079A JPS5647449A (en) 1979-09-28 1979-09-28 Asphalt composition for low-temperature service

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12482079A JPS5647449A (en) 1979-09-28 1979-09-28 Asphalt composition for low-temperature service

Publications (1)

Publication Number Publication Date
JPS5647449A true JPS5647449A (en) 1981-04-30

Family

ID=14894911

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12482079A Pending JPS5647449A (en) 1979-09-28 1979-09-28 Asphalt composition for low-temperature service

Country Status (1)

Country Link
JP (1) JPS5647449A (en)

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