Abstract: A one-pass, non-tolerance dependent method for preparing paper size emulsions comprising an aqueous emulsion of a substituted cyclic dicarboxylic anhydride, a colloidal stabilizer, and a surfactant wherein the emulsion after one-pass through a dispersion system has an average particle size of less than 2 microns.
Type:
Grant
Filed:
December 15, 1998
Date of Patent:
October 2, 2001
Assignee:
National Starch & Chemical Investment Holding
Corporation
Inventors:
Michel D. Létourneau, Walter Maliczyszyn
Abstract: Stable, cold water soluble, ready for use starch aldehyde compositions and the method of preparation of such compositions wherein an aqueous dispersion of a converted starch acetal is hydrolyzed under acidic conditions to form the starch aldehyde which is then spray dried into a cold water soluble starch aldehyde powder.
Type:
Grant
Filed:
November 5, 1998
Date of Patent:
July 24, 2001
Assignee:
National Starch & Chemical Investment Holding
Corporation
Inventors:
A. Levent Cimecioglu, Bjork Ohlhorst, Daniel B. Solarek, Douglas J. Slate, James L. Eden
Abstract: Cationic polysaccharide derivatives are prepared by reacting a polysaccharide with a polycationic reagent having one polysaccharide reactive group and at least two cationic groups. Suitable reagents include polycationic alkyl, aryl, alkaryl, cycloaliphatic, or heterocyclic amines, some of which are novel compositions. The polycationic polysaccharide derivatives prepared from these reagents are useful in the manufacture of paper.
Type:
Grant
Filed:
June 1, 1994
Date of Patent:
February 27, 2001
Assignee:
National Starch and Chemical Investment Holding
Corporation
Inventors:
John (Ji-Hsiung) Tsai, Peter T. Trzasko, Michael T. Philbin, Robert L. Billmers, Martin M. Tessler, Joseph A. Van Gompel, Morton W. Rutenberg
Abstract: A method of reducing fuel consumption in an automotive internal combustion engine which comprises operating said engine on gasoline hydrocarbon fuel containing an effective fuel reducing amount of a selected additive which is a hydroxyl-containing ester of a monocarboxylic acid and a glycol or trihydric alcohol, said ester additive having at least one free hydroxyl group.
Abstract: A method and composition for obtaining improved friction reducing properties is provided by a lubricating oil composition and the lubrication of internal combustion engines with said composition which comprises an additive combination of an ester of a polycarboxylic acid with a glycol or glycerol and an ashless dispersant containing a high molecular weight aliphatic hydrocarbon oil solubilizing group attached thereto and a selected amount of free hydroxyl groups.
Abstract: A high viscosity index lubricating oil with improved thermal stability, anticorrosion and antiwear properties and the method for providing such composition which contains a major amount of paraffinic mineral oil basestock and effective amounts of a combination of a basic zinc dialkyl dithiophosphate and 2,6 di-tertiary butyl phenol.
Type:
Grant
Filed:
December 6, 1982
Date of Patent:
June 3, 1986
Assignee:
Exxon Research and Engineering Co.
Inventors:
William H. Stadtmiller, Kenneth G. Morris
Abstract: This invention involves a method for preparing magnesium and calcium dihydrocarbyldithiophosphates comprising reacting magnesium or calcium in elemental metal form with a dihydrocarbyldithiophoric acid in the presence of an effective amount of a selected lower alkyl alcohol, particularly methanol, as a reaction promoter.
Abstract: This invention involves the preparation of selected metal dithiobenzoates by electrolysis of a substituted dithiobenzoic acid with a metal. It further involves the use of such metal dithiobenzoates as additives in lubricating hydrocarbon compositions.
Abstract: This invention concerns an oil composition comprising a major proportion by weight of an oil having a kinematic viscosity of 5 to 30 cSt at 40.degree. C. e.g. a transformer oil, and a minor proportion by weight of an organo siloxane having the formula: ##STR1## wherein R.sup.1 is independently methyl, ethyl or propyl,R.sup.2 is independently a C.sub.10 to C.sub.20 alkyl group andn is 12 to 28.Such oil compositions having low pour points and excellent dielectric properties can be used as electrical oils.
Abstract: A lubricating oil composition having improved friction reducing properties and the method of reducing friction in internal combustion engines by lubricating said engines with said lubricating oil which contains an effective friction reducing amount of a selected hydroxyamide compound.
Abstract: A traction fluid having a lubricant basestock comprising a selected mineral oil composition containing a saturate fraction having a significant portion made up of multiring components of at least three rings and an aromatic fraction which comprises at least 15% by weight of said composition and contains at least 40% by volume of multiring components.
Abstract: A method for improving the storage stability of shale oil liquids by extracting or contacting the shale oil with a base solution having a pH of at least about 7.5 to inhibit the formation or reduce the level of sediment and gum which can form in said shale oil.
Type:
Grant
Filed:
January 3, 1984
Date of Patent:
July 30, 1985
Assignee:
Exxon Research and Engineering Co.
Inventors:
John W. Frankenfeld, Robert L. Bruncati
Abstract: A method for reducing the water sensitivity of an ether containing gasoline composition comprising mixing the ether component after it is prepared and while it is essentially water free with a selected paraffinic component before it is added to the gasoline.
Abstract: An oxidation-resistant hydrocarbon oil composition is made by catalytically hydrogen-refining under relatively severe conditions a hydrocarbon oil basestock boiling in the lube oil boiling range and separately catalytically hydrogen-refining under relatively mild conditions a hydrocarbon fraction boiling in the lube oil range and having an aniline point exceeding 60.degree. C. and a sulfur content of at least 2.0 wt %. The resulting severely-refined basestock has a sulfur content not greater than 0.10 wt % and the resulting mildly-refined fraction has a sulfur content of at least 1.0 wt %, and the desired oxidation resistant composition is a blend comprising 85 to 99.9 wt % of the former and 15 to 0.1 wt % of the latter.
Abstract: A lubricating oil composition with improved corrosion inhibiting properties comprising a major amount of a lubricating oil basestock and an effective amount of a complex of a selected heterocyclic nitrogen compound and an organometallic salt of a C.sub.4 to C.sub.22 fatty acid.
Abstract: A method of coating metal substrates with a protective aluminum-silicon coating comprising a mixture of (1) an Al-Si eutectic, Al-Si hypereutectic or elemental aluminum and (2) elemental silicon, the articles of manufacture provided by said coating and the method of carrying out thermal hydrocarbon processing operations where corrosion/erosion and other high temperature interactions are a problem using apparatus containing said coatings.
Abstract: A lubricating oil composition having particularly improved friction reducing properties which comprises an ester of a polycarboxylic acid with a glycol or glycercol and a selected metal dithiocarbamate and contains a relatively low level of phosphorus.
Abstract: A composition for reducing the amount of particulate matter formed during the combustion of residual fuel oil, particularly No. 6 fuel oil, comprising a residual fuel oil and an effective amount of a combination of zirconium and cerium salts of carboxylic acids, alcohols, phenols or sulfonates. Another embodiment involves a process for reducing the amount of particulate matter formed during combustion of a residual fuel oil which comprises combustion of a residual fuel which contains an effective amount of said selected combination of zirconium and cerium salts.
Abstract: A lubricating oil composition having improved friction reducing properties and the method of reducing friction in internal combustion engines by lubricating said engines with said lubricating oil which contains an effective friction reducing amount of an additive which is the reaction product of a dimer carboxylic acid and a polyhydric alcohol having at least three hydroxyl groups.
Type:
Grant
Filed:
May 5, 1982
Date of Patent:
July 10, 1984
Assignee:
Exxon Research and Engineering Co.
Inventors:
Harold Shaub, David I. Devore, Kenneth S. Kirschenbaum