JPS5674176A - Preparation of antioxidant for rubber - Google Patents

Preparation of antioxidant for rubber

Info

Publication number
JPS5674176A
JPS5674176A JP15229879A JP15229879A JPS5674176A JP S5674176 A JPS5674176 A JP S5674176A JP 15229879 A JP15229879 A JP 15229879A JP 15229879 A JP15229879 A JP 15229879A JP S5674176 A JPS5674176 A JP S5674176A
Authority
JP
Japan
Prior art keywords
methylstyrene
mixture
rubber
added
heated
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
JP15229879A
Other languages
Japanese (ja)
Other versions
JPS6045867B2 (en
Inventor
Shozo Yura
Kenjiro Matsumoto
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.)
HONSYU KAGAKU KOGYO KK
Honshu Chemical Industry Co Ltd
Original Assignee
HONSYU KAGAKU KOGYO KK
Honshu Chemical Industry 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 HONSYU KAGAKU KOGYO KK, Honshu Chemical Industry Co Ltd filed Critical HONSYU KAGAKU KOGYO KK
Priority to JP54152298A priority Critical patent/JPS6045867B2/en
Publication of JPS5674176A publication Critical patent/JPS5674176A/en
Publication of JPS6045867B2 publication Critical patent/JPS6045867B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Anti-Oxidant Or Stabilizer Compositions (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

PURPOSE: To prepare an antioxidant for rubber, composed mainly of cumyldiphenylamine, and giving a rubber having excellent heat resistance, ozone resistance and flex resistance, by condensing disphenylamine with α-methylstyrene in the presence of BF3 as a catalyst.
CONSTITUTION: For example, diphenylamine is molten, and added with pref. 0.1W 0.2wt% of BF3-ether complex. The mixture is heated and agitated at 200W205°C, and made to react with α-methylstyrene added dropwise to the mixture. The amount of the α-methylstyrene is pref. 1W1.5mol per 1mol of diphenylamine. After the reaction, the mixture is further heated and stirred at 200W230°C for 2W 3hr under reflex, and then cooled to 100W120°C. 0.5wt% of slaked lime is added to the reaction product, and stirred for 30min to remove BF3 as lime salt. The filtrate is heated under reduced pressure to distil out unreacted α-methylstyrene, and the objective product is obtained as viscous liquid.
EFFECT: The agent thus prepared has low scattering tendency, and can be easily handled.
COPYRIGHT: (C)1981,JPO&Japio
JP54152298A 1979-11-22 1979-11-22 Manufacturing method of anti-aging agent for rubber Expired JPS6045867B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54152298A JPS6045867B2 (en) 1979-11-22 1979-11-22 Manufacturing method of anti-aging agent for rubber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54152298A JPS6045867B2 (en) 1979-11-22 1979-11-22 Manufacturing method of anti-aging agent for rubber

Publications (2)

Publication Number Publication Date
JPS5674176A true JPS5674176A (en) 1981-06-19
JPS6045867B2 JPS6045867B2 (en) 1985-10-12

Family

ID=15537460

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54152298A Expired JPS6045867B2 (en) 1979-11-22 1979-11-22 Manufacturing method of anti-aging agent for rubber

Country Status (1)

Country Link
JP (1) JPS6045867B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100425665B1 (en) * 2001-11-23 2004-04-06 한국타이어 주식회사 Rubber composition of run-flat tire for steel cord

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3505225A (en) * 1966-04-07 1970-04-07 Uniroyal Inc Derivatives of diphenylamine and the phenylnaphthylamines as antioxidants and as synergists with dialkyl 3,3'-thiodipropionates
JPS5122742A (en) * 1974-08-20 1976-02-23 Kawaguchi Chemical Ind GOMUYOROKABOSHIZAI

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3505225A (en) * 1966-04-07 1970-04-07 Uniroyal Inc Derivatives of diphenylamine and the phenylnaphthylamines as antioxidants and as synergists with dialkyl 3,3'-thiodipropionates
JPS5122742A (en) * 1974-08-20 1976-02-23 Kawaguchi Chemical Ind GOMUYOROKABOSHIZAI

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100425665B1 (en) * 2001-11-23 2004-04-06 한국타이어 주식회사 Rubber composition of run-flat tire for steel cord

Also Published As

Publication number Publication date
JPS6045867B2 (en) 1985-10-12

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