CA1108792A - Produit ameliorant l'index de viscosite, a base d'un dispersant polymerique en forme d'etoile - Google Patents

Produit ameliorant l'index de viscosite, a base d'un dispersant polymerique en forme d'etoile

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Publication number
CA1108792A
CA1108792A CA300,525A CA300525A CA1108792A CA 1108792 A CA1108792 A CA 1108792A CA 300525 A CA300525 A CA 300525A CA 1108792 A CA1108792 A CA 1108792A
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Canada
Prior art keywords
product according
polymer
star
hydrogenated
product
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CA300,525A
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English (en)
Inventor
Thomas E. Kiovsky
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Shell Canada Ltd
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Shell Canada Ltd
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Priority claimed from US05/795,676 external-priority patent/US4077893A/en
Priority claimed from US05/795,675 external-priority patent/US4141847A/en
Application filed by Shell Canada Ltd filed Critical Shell Canada Ltd
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Publication of CA1108792A publication Critical patent/CA1108792A/fr
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    • C08G81/00—Macromolecular compounds obtained by interreacting polymers in the absence of monomers, e.g. block polymers
    • C08G81/02—Macromolecular compounds obtained by interreacting polymers in the absence of monomers, e.g. block polymers at least one of the polymers being obtained by reactions involving only carbon-to-carbon unsaturated bonds
    • C08G81/021—Block or graft polymers containing only sequences of polymers of C08C or C08F
    • C08G81/022—Block or graft polymers containing only sequences of polymers of C08C or C08F containing sequences of polymers of conjugated dienes and of polymers of alkenyl aromatic compounds
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    • C08C19/42—Addition of a reagent which reacts with a hetero atom or a group containing hetero atoms of the macromolecule reacting with metals or metal-containing groups
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    • C10N2040/04—Oil-bath; Gear-boxes; Automatic transmissions; Traction drives
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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)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Graft Or Block Polymers (AREA)
CA300,525A 1977-05-11 1978-04-05 Produit ameliorant l'index de viscosite, a base d'un dispersant polymerique en forme d'etoile Expired CA1108792A (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US05/795,676 US4077893A (en) 1977-05-11 1977-05-11 Star-shaped dispersant viscosity index improver
US795,675 1977-05-11
US05/795,675 US4141847A (en) 1977-05-11 1977-05-11 Star-shaped polymer reacted with dicarboxylic acid and amine as dispersant viscosity index improver
US795,676 1985-11-06

Publications (1)

Publication Number Publication Date
CA1108792A true CA1108792A (fr) 1981-09-08

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CA300,525A Expired CA1108792A (fr) 1977-05-11 1978-04-05 Produit ameliorant l'index de viscosite, a base d'un dispersant polymerique en forme d'etoile

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JP (1) JPS53139694A (fr)
CA (1) CA1108792A (fr)
DE (1) DE2820211A1 (fr)
FR (1) FR2390496A1 (fr)
GB (1) GB1568951A (fr)
NL (1) NL184275C (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2047266B (en) * 1979-04-09 1984-02-08 Exxon Research Engineering Co Viscosity index lubricating oils
DE3280421T2 (de) * 1981-08-13 1993-07-01 Asahi Chemical Ind Modifiziertes block-copolymer.
US5272209A (en) * 1981-08-13 1993-12-21 Asahi Kasei Kogyo Kabushiki Kaisha Modified block copolymer composition
US5272208A (en) * 1981-08-13 1993-12-21 Asahi Kasei Kogyo Kabushiki Kaisha Modified block copolymer composition
US5278246A (en) * 1981-08-13 1994-01-11 Asahi Kasei Kogyo Kabushiki Kaisha Modified block copolymer and a process for producing the same
GB2127431B (en) * 1982-09-29 1985-11-20 Exxon Research Engineering Co Lubricating oil composition
US4490267A (en) * 1982-12-31 1984-12-25 Shell Oil Company Preparation of a lubricating oil additive, an additive thus prepared _and a lubricating oil containing this additive
US4507466A (en) * 1983-01-07 1985-03-26 The Dow Chemical Corporation Dense star polymers having core, core branches, terminal groups
GB8824037D0 (en) * 1988-10-13 1988-11-23 Shell Int Research Modified dispersant v i improver
US5633415A (en) * 1990-01-16 1997-05-27 Mobil Oil Corporation Dispersants and dispersant viscosity index improvers from selectively hydrogenated polymers
GB9421282D0 (en) * 1994-10-21 1994-12-07 Exxon Chemical Patents Inc Additives and oleaginous compositions
EP1557441A3 (fr) * 2003-12-08 2006-06-28 Peter Dr. Wilharm Agent de nucléation à base de polymères hyperbranchés
CA2767804A1 (fr) * 2009-07-08 2011-01-13 The Lubrizol Corporation Melanges de polymeres utiles comme modificateurs de viscosite
CA3145615C (fr) 2019-07-08 2024-02-13 Byk-Chemie Gmbh Abaisseur de point d'ecoulement

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3903003A (en) * 1974-03-06 1975-09-02 Shell Oil Co Lubricating compositions containing an amido-amine reaction product of a terminally carboxylated isoprene polymer

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Publication number Publication date
NL184275B (nl) 1989-01-02
FR2390496B1 (fr) 1980-07-04
JPS53139694A (en) 1978-12-06
JPS6134724B2 (fr) 1986-08-09
DE2820211C2 (fr) 1992-05-21
NL7804898A (nl) 1978-11-14
FR2390496A1 (fr) 1978-12-08
DE2820211A1 (de) 1978-11-16
GB1568951A (en) 1980-06-11
NL184275C (nl) 1989-06-01

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