BR9811959A - Método para aperfeiçoar a fluidez em baixa temperatura de óleos lubrificantes mediante o uso de misturas de aditivos de polìmeros de alto e baixo peso molecular - Google Patents

Método para aperfeiçoar a fluidez em baixa temperatura de óleos lubrificantes mediante o uso de misturas de aditivos de polìmeros de alto e baixo peso molecular

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Publication number
BR9811959A
BR9811959A BR9811959-1A BR9811959A BR9811959A BR 9811959 A BR9811959 A BR 9811959A BR 9811959 A BR9811959 A BR 9811959A BR 9811959 A BR9811959 A BR 9811959A
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BR
Brazil
Prior art keywords
molecular weight
meth
low temperature
improving
low molecular
Prior art date
Application number
BR9811959-1A
Other languages
English (en)
Other versions
BR9811959B1 (pt
Inventor
Bernard George Kinker
Thomas Andrew Mcgregor
Joan Marie Souchik
Original Assignee
Roehm Rohmax Holding Gmbh
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Filing date
Publication date
Application filed by Roehm Rohmax Holding Gmbh filed Critical Roehm Rohmax Holding Gmbh
Publication of BR9811959A publication Critical patent/BR9811959A/pt
Publication of BR9811959B1 publication Critical patent/BR9811959B1/pt

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    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
    • C10M169/04—Mixtures of base-materials and additives
    • C10M169/041—Mixtures of base-materials and additives the additives being macromolecular compounds only
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  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Lubricants (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)

Abstract

"MéTODO PARA APERFEIçOAR A FLUIDEZ EM BAIXA TEMPERATURA DE óLEOS LUBRIFICANTES MEDIANTE O USO DE MISTURAS DE ADITIVOS DE POLìMEROS DE ALTO E BAIXO PESO MOLECULAR". Descreve-se um método para melhorar a fluidez em baixa temperatura de composições de óleo lubrificante com base na adição aos óleos lubrificantes de uma mistura de copolímeros de (met)acrilato de alquila de alto peso molecular e baixo peso molecular. As combinações de polímeros de (met)acrilato de alquila de baixo peso molecular que contêm zero a 25 por cento em peso de (met)acrilato de (C~16~-C~24~) alquila com polímeros de (met)acrilato de alquila de alto peso molecular que contêm 25 a 70 por cento em peso de (met)acrilato de (C~16~-C~24~) alquila são especialmente eficientes ao satisfazer aspectos diferentes de propriedades de fluidez em baixa temperatura simultaneamente para uma faixa ampla de óleos de base.
BRPI9811959-1A 1997-08-22 1998-08-20 método para aperfeiçoar a fluidez em baixa temperatura de óleos lubrificantes mediante o uso de misturas de aditivos de polìmeros de alto e baixo peso molecular, composições de óleo lubrificante e concentrado para uso nas referidas composições. BR9811959B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US5689897P 1997-08-22 1997-08-22
US60/056,898 1997-08-22
PCT/EP1998/005299 WO1999010454A2 (en) 1997-08-22 1998-08-20 Mixtures of high- and low-molecular weight poymeric additives for the improvement of the low-temperature fluidity of lubricating oils

Publications (2)

Publication Number Publication Date
BR9811959A true BR9811959A (pt) 2002-04-30
BR9811959B1 BR9811959B1 (pt) 2010-03-09

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BRPI9811959-1A BR9811959B1 (pt) 1997-08-22 1998-08-20 método para aperfeiçoar a fluidez em baixa temperatura de óleos lubrificantes mediante o uso de misturas de aditivos de polìmeros de alto e baixo peso molecular, composições de óleo lubrificante e concentrado para uso nas referidas composições.

Country Status (10)

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US (1) US6458749B2 (pt)
EP (1) EP1015532B1 (pt)
JP (1) JP4391014B2 (pt)
KR (1) KR100517190B1 (pt)
CN (1) CN1104487C (pt)
AU (1) AU9532898A (pt)
BR (1) BR9811959B1 (pt)
CA (1) CA2300408C (pt)
DE (1) DE69827653T2 (pt)
WO (1) WO1999010454A2 (pt)

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CN101679902B (zh) * 2007-06-08 2013-06-12 东邦化学工业株式会社 润滑油用倾点下降剂
US7749946B2 (en) * 2007-08-20 2010-07-06 Sanjel Corporation Crosslinking composition for fracturing fluids
JP5483662B2 (ja) 2008-01-15 2014-05-07 Ｊｘ日鉱日石エネルギー株式会社 潤滑油組成物
JP5806794B2 (ja) * 2008-03-25 2015-11-10 Ｊｘ日鉱日石エネルギー株式会社 内燃機関用潤滑油組成物
JP2010090251A (ja) 2008-10-07 2010-04-22 Nippon Oil Corp 潤滑油基油及びその製造方法、潤滑油組成物
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EP1015532B1 (en) 2004-11-17
WO1999010454A2 (en) 1999-03-04
CN1104487C (zh) 2003-04-02
DE69827653D1 (de) 2004-12-23
JP2001514301A (ja) 2001-09-11
EP1015532A2 (en) 2000-07-05
US6458749B2 (en) 2002-10-01
BR9811959B1 (pt) 2010-03-09
CA2300408A1 (en) 1999-03-04
CN1267321A (zh) 2000-09-20
DE69827653T2 (de) 2006-04-27
JP4391014B2 (ja) 2009-12-24
US20010056044A1 (en) 2001-12-27
KR20010023141A (ko) 2001-03-26
WO1999010454A3 (en) 1999-05-27
KR100517190B1 (ko) 2005-09-28
CA2300408C (en) 2005-08-09

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