Patents Represented by Attorney G. F. Swiss
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Patent number: 4904278Abstract: Disclosed are additives which are useful as dispersants in lubricating oils, gasolines, marine crankcase oils and hydraulic oils. In particular, disclosed are polyamino alkenyl or alkyl succinimides which contain carbamate functionalities.Type: GrantFiled: May 16, 1986Date of Patent: February 27, 1990Assignee: Chevron Research CompanyInventors: Robert H. Wollenberg, Frank Plavac
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Patent number: 4783275Abstract: Disclosed are polyamino alkenyl or alkyl succinimides which have been modified by treatment with a lactone to yield polyamino alkenyl or alkyl succinimides wherein one or more of the basic nitrogens of the polyamino moiety is substituted with a hydrocarbylcarbonylalkylene group. The additives so disclosed are useful as dispersants in lubricating oils, gasolines, marine crankcase oils and hydraulic oils.Type: GrantFiled: May 26, 1987Date of Patent: November 8, 1988Assignee: Chevron Research CompanyInventor: Robert H. Wollenberg
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Patent number: 4755312Abstract: Disclosed are additives which are useful as dispersants in marine crankcase oils and hydraulic oils, lubricating oils. In particular, disclosed are nitrogen-containing lubricating oil dispersants having at least one primary or secondary amino group which have been modified by treatment with a cyclic carbonate.Type: GrantFiled: September 19, 1986Date of Patent: July 5, 1988Assignee: Chevron Research CompanyInventor: Robert H. Wollenberg
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Patent number: 4747850Abstract: Disclosed are additives which are useful as dispersants in lubricating oils, gasolines, marine crankcase oils and hydraulic oils. In particular, disclosed are multiply adducted alkenyl or alkyl succinimides which contain carbamate functionalities.Type: GrantFiled: September 11, 1987Date of Patent: May 31, 1988Assignee: Chevron Research CompanyInventors: Robert H. Wollenberg, Frank Plavac
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Patent number: 4747965Abstract: Disclosed are additives which are useful as dispersants in lubricating oils, gasolines, marine crankcase oils and hydraulic oils. In particular, disclosed are multiply adducted alkenyl or alkyl succinimides which contain carbamate functionalities.Type: GrantFiled: August 15, 1986Date of Patent: May 31, 1988Assignee: Chevron Research CompanyInventors: Robert H. Wollenberg, Frank Plavac
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Patent number: 4746446Abstract: Disclosed are additives which are useful as dispersants in lubricating oils, gasolines, marine crankcase oils and hydraulic oils. In particular, disclosed are polyamino alkenyl or alkyl succinimides which contain carbamate functionalities.Type: GrantFiled: August 27, 1987Date of Patent: May 24, 1988Assignee: Chevron Research CompanyInventors: Robert H. Wollenberg, Frank Plavac, Timothy R. Erdman
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Patent number: 4746447Abstract: Disclosed are additives which are useful as dispersants in marine crankcase oils and hydraulic oils, lubricating oils. In particular, disclosed are hydrocarbyl-substituted polyamines having at least one primary or secondary amino group which have been modified by treatment with a cyclic carbonate.Type: GrantFiled: January 10, 1986Date of Patent: May 24, 1988Assignee: Chevron Research CompanyInventor: Robert H. Wollenberg
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Patent number: 4744921Abstract: The present invention is directed toward a method for preparing Group II metal overbased sulfurized alkylphenols. In particular, the present invention employs a sulfurization catalyst in the preparation of Group II metal overbased sulfurized alkylphenols. Use of a sulfurization catalyst in this preparation results in a product generally characterized as having lower crude sediment, a higher Total Base Number and lower viscosity than a similar product prepared without using a sulfurization catalyst.Type: GrantFiled: October 21, 1986Date of Patent: May 17, 1988Assignee: Chevron Research CompanyInventor: Thomas V. Liston
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Patent number: 4729842Abstract: Disclosed are additives which are useful as dispersants in marine crankcase oils and hydraulic oils, lubricating oils. In particular, disclosed are nitrogen-containing lubricating oil dispersants having at least one primary or secondary amino group which have been modified by treatment with a cyclic carbonate.Type: GrantFiled: February 28, 1986Date of Patent: March 8, 1988Assignee: Chevron Research CompanyInventor: Robert H. Wollenberg
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Patent number: 4713190Abstract: Carboxylic amide dispersants are reacted with a fluorine-containing acid reagent selected from fluorophosphoric acid, boron trifluoride, fluoboric acid and the ammonium salts thereof. The reaction of the dispersant with the fluorine-containing acid passivates the dispersant to fluorocarbon compositions used as seals, for example in automobile engines.Type: GrantFiled: October 23, 1985Date of Patent: December 15, 1987Assignee: Chevron Research CompanyInventor: Timothy R. Erdman
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Patent number: 4713188Abstract: Disclosed are additives which are useful as dispersants in marine crankcase oils and hydraulic oils, lubricating oils. In particular, disclosed are hydrocarbyl-substituted amides having at least one primary or secondary amino group which have been modified by treatment with a cyclic carbonate.Type: GrantFiled: January 10, 1986Date of Patent: December 15, 1987Assignee: Chevron Research CompanyInventor: Robert H. Wollenberg
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Patent number: 4710201Abstract: Disclosed are additives which are useful as dispersants in marine crankcase oils, hydraulic oils, and lubricating oils. In particular, disclosed are polyamino alkenyl or alkyl succinimides modified by reaction with a compound of the formula: ##STR1## wherein R.sub.4 is selected from the group consisting of a divalent hydrocarbyl group of from 2 to 30 carbon atoms with the proviso that the hydrocarbyl carbon atom bound to one ##STR2## group is not also bound to the other ##STR3## group and --R.sub.5 --OR.sub.5 --.sub.p wherein R.sub.5 is alkylene of from 2 to 5 carbon atoms and p is an integer of from 1 to 100; X is selected from the group consisting of bromo, chloro and --OR.sub.6 wherein R.sub.6 is selected from the group consisting of alkyl of from 1 to 6 carbon atoms, phenyl and phenyl substituted with 1 to 2 substituents selected from the group consisting of chloro, bromo, nitro, alkyl of from 1 to 6 carbon atoms and trifluoromethyl; and m is independently an integer of from 0 to 1.Type: GrantFiled: March 20, 1987Date of Patent: December 1, 1987Assignee: Chevron Research CompanyInventor: Thomas F. Buckley
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Patent number: 4702851Abstract: Disclosed are additives which are useful as dispersants in lubricating oils, gasolines, marine crankcase oils and hydraulic oils. In particular, disclosed are additives prepared by (a) first reacting a polyamine with a cyclic carbonate; (b) reaction of this intermediate with an alkenyl or alkyl succinic anhydride; and (c) reaction of the product of (b) with a boron compound.Type: GrantFiled: October 8, 1986Date of Patent: October 27, 1987Assignee: Chevron Research CompanyInventor: Robert H. Wollenberg
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Patent number: 4695391Abstract: Disclosed are additives which are useful as dispersants in marine crankcase oils, hydraulic oils, and lubricating oils. In particular, disclosed are polyamino alkenyl or alkyl succinimides modified by reaction with a compound of the formula: ##STR1## wherein R.sub.4 is selected from the group consisting of a divalent hydrocarbyl group of from 2 to 30 carbon atoms with the proviso that the hydrocarbyl carbon atom bound to one ##STR2## group is not also bound to the other ##STR3## group and --R.sub.5 --OR.sub.5 --.sub.p wherein R.sub.5 is alkylene of from 2 to 5 carbon atoms and p is an integer of from 1 to 100; X is selected from the group consisting of bromo, chloro and --OR.sub.6 wherein R.sub.6 is selected from the group consisting of alkyl of from 1 to 6 carbon atoms, phenyl and phenyl substituted with 1 to 2 substituents selected from the group consisting of chloro, bromo, nitro, alkyl of from 1 to 6 carbon atoms and trifluoromethyl; and m is independently an integer of from 0 to 1.Type: GrantFiled: September 4, 1986Date of Patent: September 22, 1987Assignee: Chevron Research CompanyInventor: Thomas F. Buckley
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Patent number: 4680129Abstract: Disclosed are additives which are useful as dispersants in marine crankcase oils, hydraulic oils, and lubricating oils. In particular, disclosed are polyamino alkenyl or alkyl succinimides wherein one or more of the nitrogen of the polyamino moiety is substituted with: ##STR1## wherein R.sub.4 is alkylene of from 1 to 6 carbon atoms; m is an integer of from 0 to 2; R.sub.5 is alkylene of from 2 to 5 carbon atoms; p is an integer of from 1 to 100; R.sub.6 is selected from the group consisting of hydrogen and hydrocarbyl of from 1 to 30 carbon atoms; and with the proviso that if m is one or two then R.sub.6 is hydrogen.Type: GrantFiled: January 17, 1986Date of Patent: July 14, 1987Assignee: Chevron Research CompanyInventor: Frank Plavac
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Patent number: 4670170Abstract: Disclosed are polyaminoalkenyl or alkyl succinimides which have been modified by treatment with a compound of the formula: ##STR1## R.sub.4 is an alkylene group of from 2 to 3 carbon atoms or an alkylene group of from 2 to 3 carbon atoms substituted with from 1 to 3 alkyl groups of from 1 to 2 carbon atoms each. The modified polyamino alkenyl or alkyl succinimides of this invention have been found to possess dispersancy and detergency in lubricating oils. These modified succinimides are also useful as dispersants and detergents in fuels.Type: GrantFiled: April 18, 1986Date of Patent: June 2, 1987Assignee: Chevron Research CompanyInventor: Robert H. Wollenberg
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Patent number: 4668409Abstract: The anti-wear properties of lubricating oil compositions containing overbased calcium sulfonate are improved when a metal salt of an alkyl catechol ester of dithiophosphoric acid is added to the oil. Oil compositions containing this combination are useful as crankcase lubricants.Type: GrantFiled: September 30, 1983Date of Patent: May 26, 1987Assignee: Chevron Research CompanyInventors: Elaine S. Yamaguchi, Thomas V. Liston
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Patent number: 4668246Abstract: Disclosed are polyamino alkenyl or alkyl succinimides which have been modified by treatment with a lactone to yield polyamino alkenyl or alkyl succinimides wherein one or more of the basic nitrogens of the polyamino moiety is substituted with a hydrocarbylcarbonylalkylene group. The additives so disclosed are useful as dispersants in lubricating oils, gasolines, marine crankcase oils and hydraulic oils.Type: GrantFiled: April 25, 1986Date of Patent: May 26, 1987Assignee: Chevron Research CompanyInventor: Robert H. Wollenberg
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Patent number: 4666459Abstract: Disclosed are polyaminoalkenyl or alkyl succinimides which have been modified by treatment with a compound of the formula: ##STR1## wherein W is oxygen or sulfur; X is oxygen or sulfur; R.sub.4 is an alkylene group of from 2 to 3 carbon atoms or an alkylene group of from 2 to 3 carbon atoms substituted with from 1 to 3 alkyl groups of from 1 to 2 carbon atoms each; and R.sub.5 is hydrogen or alkyl of from 1 to 20 carbon atoms. The modified polyamino alkenyl or alkyl succinimides of this invention have been found to possess dispersancy and detergency in lubricating oils. These modified succinimides are also useful as dispersants and detergents in fuels.Type: GrantFiled: March 17, 1986Date of Patent: May 19, 1987Assignee: Chevron Research CompanyInventor: Robert H. Wollenberg
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Patent number: 4666460Abstract: Disclosed herein are additives which are useful as dispersants and detergents in lubricating oils. In particular, this invention is directed toward polyamino alkenyl or alkyl succinimides which have been modified by treatment with a compound of the formula: ##STR1## wherein W is oxygen or sulfur; X is oxygen, sulfur or R.sub.5 N< wherein R.sub.5 is hydrogen, and alkyl of from 1 to 20 carbon atoms; and R.sub.4 is an alkylene group of from 2 to 5 carbon atoms or an alkylene group of from 2 to 5 carbon atoms substituted with from 1 to 3 alkyl groups of from 1 to 2 carbon atoms each with the proviso that both W and X are not both oxygen. The modified polyamino alkenyl or alkyl succinimides of this invention have been found to possess dispersancy and detergency in lubricating oils. These modified succinimides are also useful as dispersants and detergents in fuels.Type: GrantFiled: April 18, 1986Date of Patent: May 19, 1987Assignee: Chevron Research CompanyInventor: Robert H. Wollenberg