JPS5339305A - Preparation of viscosity index improver having improved viscosity increasing effect - Google Patents

Preparation of viscosity index improver having improved viscosity increasing effect

Info

Publication number
JPS5339305A
JPS5339305A JP11406376A JP11406376A JPS5339305A JP S5339305 A JPS5339305 A JP S5339305A JP 11406376 A JP11406376 A JP 11406376A JP 11406376 A JP11406376 A JP 11406376A JP S5339305 A JPS5339305 A JP S5339305A
Authority
JP
Japan
Prior art keywords
increasing effect
preparation
viscosity
index improver
improved
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
JP11406376A
Other languages
Japanese (ja)
Inventor
Motoyuki Suzuki
Makoto Otaki
Keiichi Akimoto
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.)
Sanyo Chemical Industries Ltd
Original Assignee
Sanyo Chemical Industries 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 Sanyo Chemical Industries Ltd filed Critical Sanyo Chemical Industries Ltd
Priority to JP11406376A priority Critical patent/JPS5339305A/en
Publication of JPS5339305A publication Critical patent/JPS5339305A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B1/00—Engines characterised by fuel-air mixture compression
    • F02B1/02—Engines characterised by fuel-air mixture compression with positive ignition
    • F02B1/04—Engines characterised by fuel-air mixture compression with positive ignition with fuel-air mixture admission into cylinder

Landscapes

  • Lubricants (AREA)
  • Polymerisation Methods In General (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

PURPOSE: To prepare a viscosity index impover having much improved viscosity increasing effect, by copolymerizing aromatic vinyl compounds and acrylates in the presence of a specific oil soluble hydrogenated compound and a peroxide.
COPYRIGHT: (C)1978,JPO&Japio
JP11406376A 1976-09-22 1976-09-22 Preparation of viscosity index improver having improved viscosity increasing effect Pending JPS5339305A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11406376A JPS5339305A (en) 1976-09-22 1976-09-22 Preparation of viscosity index improver having improved viscosity increasing effect

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11406376A JPS5339305A (en) 1976-09-22 1976-09-22 Preparation of viscosity index improver having improved viscosity increasing effect

Publications (1)

Publication Number Publication Date
JPS5339305A true JPS5339305A (en) 1978-04-11

Family

ID=14628092

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11406376A Pending JPS5339305A (en) 1976-09-22 1976-09-22 Preparation of viscosity index improver having improved viscosity increasing effect

Country Status (1)

Country Link
JP (1) JPS5339305A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5525492A (en) * 1978-08-11 1980-02-23 Roehm Gmbh Manufacture of lubricant oil additive
WO1980000976A1 (en) * 1978-11-14 1980-05-15 Mitsui Petrochemical Ind Lubricating oil composition and process for producing same
WO1997017417A1 (en) * 1995-11-07 1997-05-15 Nof Corporation Viscosity index improver, process for preparing the same and lubricating oil composition

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5525492A (en) * 1978-08-11 1980-02-23 Roehm Gmbh Manufacture of lubricant oil additive
JPS6216997B2 (en) * 1978-08-11 1987-04-15 Roehm Gmbh
WO1980000976A1 (en) * 1978-11-14 1980-05-15 Mitsui Petrochemical Ind Lubricating oil composition and process for producing same
WO1997017417A1 (en) * 1995-11-07 1997-05-15 Nof Corporation Viscosity index improver, process for preparing the same and lubricating oil composition

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