FR2355037A1 - Polymethacrylate-polyalkene complexes - as viscosity index improvers, dispersants and antioxidants for lubricating oil - Google Patents

Polymethacrylate-polyalkene complexes - as viscosity index improvers, dispersants and antioxidants for lubricating oil

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Publication number
FR2355037A1
FR2355037A1 FR7714230A FR7714230A FR2355037A1 FR 2355037 A1 FR2355037 A1 FR 2355037A1 FR 7714230 A FR7714230 A FR 7714230A FR 7714230 A FR7714230 A FR 7714230A FR 2355037 A1 FR2355037 A1 FR 2355037A1
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France
Prior art keywords
polymethacrylate
polyalkene
alkyl
viscosity index
dispersants
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
FR7714230A
Other languages
French (fr)
Other versions
FR2355037B3 (en
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.)
Texaco Development Corp
Original Assignee
Texaco Development 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
Priority claimed from US05/696,151 external-priority patent/US4036767A/en
Priority claimed from US05/696,150 external-priority patent/US4036766A/en
Application filed by Texaco Development Corp filed Critical Texaco Development Corp
Publication of FR2355037A1 publication Critical patent/FR2355037A1/en
Application granted granted Critical
Publication of FR2355037B3 publication Critical patent/FR2355037B3/fr
Granted legal-status Critical Current

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    • C10M157/04—Lubricating compositions characterised by the additive being a mixture of two or more macromolecular compounds covered by more than one of the main groups C10M143/00 - C10M155/00, each of these compounds being essential at least one of them being a nitrogen-containing compound
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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Lubricants (AREA)
  • Polymerisation Methods In General (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

A complex (I) contains (1) a polymetha rylate of molecular wt. 4 x 104-106, and (2) a liquid polymer, with mol. wt. 200-10,000, of a 3-12C alkene-1. The ratio by wt. of (1):(2) is 4:1-2:3 (2:1). The polymethacrylate is obtd. by copolymerising (a) 1-10 wt.% of CH2=C(CH3)-CO-NH-A-NRR1, where R and R1 are 1-2C alkyl and A is 1-5C alkanediyl, (b) 15-30% of R2OOC-C(CH3)=CH2 where R2 is 1-6C alkyl, (c) 40-60% of R3OOC-C(CH3)=CH3 where R3 is 10-14C alkyl, and (d) 15-30% of R4OOC-C(CH3)=CH3, where R4 is 16-20C alkyl, in the presence of the liquid polyalkene. (I) is a viscosity index (VI) improver for lubricating oils esp. automatic transmission fluids and crankcase oils. (I) combines good VI improving properties with dispersant and antioxidant properties.
FR7714230A 1976-06-14 1977-05-10 Polymethacrylate-polyalkene complexes - as viscosity index improvers, dispersants and antioxidants for lubricating oil Granted FR2355037A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US05/696,151 US4036767A (en) 1976-06-14 1976-06-14 Polymethacrylate additives and lubricating compositions thereof
US05/696,150 US4036766A (en) 1976-06-14 1976-06-14 Polymethacrylate additives and lube compositions thereof

Publications (2)

Publication Number Publication Date
FR2355037A1 true FR2355037A1 (en) 1978-01-13
FR2355037B3 FR2355037B3 (en) 1980-02-08

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
FR7714230A Granted FR2355037A1 (en) 1976-06-14 1977-05-10 Polymethacrylate-polyalkene complexes - as viscosity index improvers, dispersants and antioxidants for lubricating oil

Country Status (5)

Country Link
JP (1) JPS52152989A (en)
BR (1) BR7703704A (en)
FR (1) FR2355037A1 (en)
IT (1) IT1085142B (en)
NL (1) NL7706494A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0171167A2 (en) * 1984-07-06 1986-02-12 Exxon Research And Engineering Company Process for preparation of oil compositions comprising a viscosity index improver-dispersant additive
EP0225048A2 (en) * 1985-10-29 1987-06-10 Exxon Chemical Patents Inc. Multifunctional viscosity improver

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3049178A1 (en) * 1980-12-24 1982-07-29 Röhm GmbH, 6100 Darmstadt "METHOD FOR THICKENING AQUEOUS SYSTEMS"
WO1988006241A1 (en) * 1987-02-20 1988-08-25 Hitachi Construction Machinery Co., Ltd. Pilot-operated hydraulic circuit and hydraulic quick exhaust valve
JPH06184579A (en) * 1992-12-10 1994-07-05 Sanyo Chem Ind Ltd Viscosity index improver for use in lubricating oil for drive system
JP6745356B2 (en) 2016-04-15 2020-08-26 イー−ファ メディテック インコーポレイテッド Chemical injection device with internal pressure adjustment

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0171167A2 (en) * 1984-07-06 1986-02-12 Exxon Research And Engineering Company Process for preparation of oil compositions comprising a viscosity index improver-dispersant additive
EP0171167A3 (en) * 1984-07-06 1986-03-19 Exxon Research And Engineering Company Viscosity index improver-dispersant additive useful in oil compositions
EP0225048A2 (en) * 1985-10-29 1987-06-10 Exxon Chemical Patents Inc. Multifunctional viscosity improver
EP0225048A3 (en) * 1985-10-29 1989-08-30 Exxon Chemical Patents Inc. Multifunctional viscosity improver

Also Published As

Publication number Publication date
IT1085142B (en) 1985-05-28
NL7706494A (en) 1977-12-16
JPS52152989A (en) 1977-12-19
BR7703704A (en) 1978-04-18
FR2355037B3 (en) 1980-02-08

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