JPS56125451A - Production of modified asphalt - Google Patents

Production of modified asphalt

Info

Publication number
JPS56125451A
JPS56125451A JP2941080A JP2941080A JPS56125451A JP S56125451 A JPS56125451 A JP S56125451A JP 2941080 A JP2941080 A JP 2941080A JP 2941080 A JP2941080 A JP 2941080A JP S56125451 A JPS56125451 A JP S56125451A
Authority
JP
Japan
Prior art keywords
asphalt
acid
mesitylene
acid catalyst
resin
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
JP2941080A
Other languages
Japanese (ja)
Other versions
JPS5724386B2 (en
Inventor
Takashi Yoshimitsu
Takemi Sakuraba
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.)
Mitsubishi Gas Chemical Co Inc
Original Assignee
Mitsubishi Gas Chemical Co Inc
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 Mitsubishi Gas Chemical Co Inc filed Critical Mitsubishi Gas Chemical Co Inc
Priority to JP2941080A priority Critical patent/JPS56125451A/en
Publication of JPS56125451A publication Critical patent/JPS56125451A/en
Publication of JPS5724386B2 publication Critical patent/JPS5724386B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To produce a modified asphalt in which penetration index and adhesive properties to metals are improved, by reacting an asphalt with a reactive mesitylene- formaldehyde resin in the presence of an acid catalyst.
CONSTITUTION: Alkylbenzene mixt contg. not less than 70wt% mesitylene is reacted with formaldehyde under reflux in the presence of an acid catalyst (e.g. sulfuric acid or phosphoric acid) to obtain a reactive mesitylene-formaldehyde resin (B) having an oxygen content of 10wt% or more and a number-average MW of 200W550. Then 5W30pts.wt. above resin component (B) is reacted with 100pts.wt. asphalt (A) in the presence of 0.05W0.5wt% (based on the combined weight of the asphalt A and the resin B) acid catalyst (e.g. oxalic acid or p-toluenesulfonic acid) at 180W240°C for 1.5W4hr.
USE: Repair for paved roads, covering materials for steel pipes.
COPYRIGHT: (C)1981,JPO&Japio
JP2941080A 1980-03-08 1980-03-08 Production of modified asphalt Granted JPS56125451A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2941080A JPS56125451A (en) 1980-03-08 1980-03-08 Production of modified asphalt

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2941080A JPS56125451A (en) 1980-03-08 1980-03-08 Production of modified asphalt

Publications (2)

Publication Number Publication Date
JPS56125451A true JPS56125451A (en) 1981-10-01
JPS5724386B2 JPS5724386B2 (en) 1982-05-24

Family

ID=12275350

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2941080A Granted JPS56125451A (en) 1980-03-08 1980-03-08 Production of modified asphalt

Country Status (1)

Country Link
JP (1) JPS56125451A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4713117A (en) * 1984-10-31 1987-12-15 Chevron Research Company Method for producing industrial asphalts without air-blowing using an organic sulfonic acid

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0468276U (en) * 1990-10-24 1992-06-17
US20110053961A1 (en) 2009-02-27 2011-03-03 Concert Pharmaceuticals, Inc. Substituted xanthine derivatives

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4713117A (en) * 1984-10-31 1987-12-15 Chevron Research Company Method for producing industrial asphalts without air-blowing using an organic sulfonic acid

Also Published As

Publication number Publication date
JPS5724386B2 (en) 1982-05-24

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