Abstract: Ester derivatives useful as fuels and lubricating oil additives are prepared by the Michael addition of an alkyl acrylate to an amine to produce an intermediate ester, followed by an ester interchange with the intermediate ester to produce the final ester derivatives, some of which are novel compounds.
Abstract: The invention relates to a fuel for gasoline engines and diesel engines, containing small amounts of an ester of a mono- and/or poly-carboxylic acid with an alkyl alkanolamine or alkyl aminopolyalkylene glycol of the general formula I ##STR1## in which R.sub.1 is a C.sub.6 -C.sub.30 -alkyl radical,R.sub.2 is a C.sub.6 -C.sub.30 -alkyl radical or a hydroxyalkyl radical of the general formula II ##STR2## and R.sub.3 is a hydroxylalkyl radical of formula II, in which R.sub.4 is hydrogen or a C.sub.1 -C.sub.6 -alkyl radical and m is an integer from 0 to 100.
Type:
Grant
Filed:
June 24, 1991
Date of Patent:
March 16, 1993
Assignee:
BASF Aktiengesellschaft
Inventors:
Juergen Mohr, Knut Oppenlaender, Roland Schwen, Hans P. Rath, Juergen Thomas, Hans-Henning Vogel
Abstract: Crude oil middle distillates with improved cold flow properties, containing small amounts ofA. conventional flow improver on an ethylene base, andB. copolymers which consist of 10 to 95 mol-% of one or more acrylacrylates or alkylmethacrylates with C.sub.1 - to C.sub.26 -alkyl chains, and of 5 to 90 mol-% of one or more ethylenically unsaturated dicarboxylic acids or their anhydrides, where the copolymer is reacted to a large extent with one or several primary or secondary amines into the monoamide or amide/ammonia salt of dicarboxylic acid, and the quantitative proportion of A to B is from 40 to 60 up to 95 to 5.
Type:
Grant
Filed:
November 13, 1991
Date of Patent:
January 12, 1993
Assignee:
BASF Corporation
Inventors:
Gerd Konrad, Bernd Wenderoth, Klaus Barthold, Erich Schwartz, Hans-Juergen Raubenheimer, Heinrich Hartmann
Abstract: The reaction products of benzophenone tetracarboxylic dianhydride and aminoalcohols and/or amines with long chain hydrocarbyl groups attached improve the low-temperature properties of distillate fuels when added thereto in minor amounts.
Type:
Grant
Filed:
December 3, 1990
Date of Patent:
October 20, 1992
Assignee:
Mobil Oil Corp.
Inventors:
David J. Baillargeon, Angeline B. Cardis, Dale B. Heck
Abstract: Motor fuel compositions comprising gasoline are improved to control octane requirement increase (ORI) by including an ester of an N-acyl sarcosinate acid or salt and a polyether polyol including oxyalkylene units selected from oxypropylene and/or oxybutylene.
Abstract: Products of reaction between 1-alkyl-N,N-dialkyl ethanolamines and copolymers of maleic anhydride are new additives which are effective in lowering the cloud point of distillate fuels.
Type:
Grant
Filed:
December 29, 1989
Date of Patent:
January 14, 1992
Assignee:
Mobil Oil Corp.
Inventors:
David J. Baillargeon, Angeline B. Cardis, Susan W. Johnson, Carl E. Shanholtz
Abstract: Additives comprising the reaction products of aminodiols and the product of pyromellitic dianhydride and aminoalcohols and/or amines with long-chain hydrocarbyl groups improve the low-temperature properties of distillate fuels.
Type:
Grant
Filed:
December 13, 1989
Date of Patent:
August 13, 1991
Assignee:
Mobil Oil Corporation
Inventors:
David J. Baillargeon, Angeline B. Cardis, Dale B. Heck
Abstract: Additives which improve the low-temperature properties of distillate fuels are the reaction products of (1) diols, and (2) the product of pyromellitic dianhydride and aminoalcohols and/or amines with long-chain hydrocarbyl groups attached.
Type:
Grant
Filed:
December 13, 1989
Date of Patent:
August 13, 1991
Assignee:
Mobil Oil Corp.
Inventors:
David J. Baillargeon, Angeline B. Cardis, Dale B. Heck
Abstract: Additives which improve the low-temperature properties of distillate fuels are the reaction products of (1) diaminodiols, and (2) the product of benzophenone tetracarboxylic dianhydride and aminoalcohols and/or amines with long-chain hydrocarbyl groups attached.
Type:
Grant
Filed:
December 13, 1989
Date of Patent:
August 13, 1991
Assignee:
Mobil Oil Corporation
Inventors:
David J. Baillargeon, Angeline B. Cardis, Dale B. Heck
Abstract: Cloud point, pour point and filterability of diesel and heating fuels are improved by the incorporation of minor amounts of an additive prepared from the reaction products of a long chain oligomeric alkylsuccinic anhydride, a higher alkyl linear saturated alcohol and a tertiary amino substituted polyol.
Type:
Grant
Filed:
December 20, 1988
Date of Patent:
July 16, 1991
Assignee:
Mobil Oil Corporation
Inventors:
Joan C. Axelrod, Sheldon Chibnik, David J. Baillargeon
Abstract: Additive reaction products of (1) hydrocarbyl diols, and (2) the product of benzophenone tetracarboxylic dianhydride and hydrocarbyl aminoalcohols and/or amines improve the low-temperature properties of distillate fuels when added thereto.
Type:
Grant
Filed:
December 18, 1989
Date of Patent:
March 26, 1991
Assignee:
Mobil Oil Corporation
Inventors:
David J. Baillargeon, Angeline B. Cardis, Dale B. Heck