Patents by Inventor Daniel M. Vargo
Daniel M. Vargo has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 6677282Abstract: Hydrocarbyl substituted carboxylic compositions and derivatives thereof useful as dispersant/viscosity improvers for lubricating oil and fuel compositions. Carboxylic compositions are derived from (A) a hydrocarbon polymer having Mn ranging from about 20,000 to about 500,000, and (B) an &agr;,&bgr;-unsaturated carboxylic compound prepared by reacting (1) an active methylene compound of the formula (I), and (2) a carbonyl compound of the general formula (II), wherein Ra is H or hydrocarbyl and Rb is a member of the group consisting of H, hydrocarbyl and (III), wherein each R′ is independently R or OR and each R is, independently, H or a hydrocarbyl group; and lower alkyl acetals, ketals, hemiacetals and hemiketals of the carbonyl compound (2).Type: GrantFiled: December 16, 2002Date of Patent: January 13, 2004Assignee: The Lubrizol CorporationInventors: Richard M. Lange, Stuart L. Bartley, Daniel M. Vargo
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Publication number: 20030207773Abstract: Hydrocarbyl substituted carboxylic compositions and derivatives thereof useful as dispersant/viscosity improvers for lubricating oil and fuel compositions. Carboxylic compositions are derived from (A) a hydrocarbon polymer having Mn ranging from about 20,000 to about 500,000, and (B) an &agr;,&bgr;-unsaturated carboxylic compound prepared by reacting (1) an active methylene compound of the formula (I), and (2) a carbonyl compound of the general formula (H), wherein Ra is H or hydrocarbyl and Rb is a member of the group consisting of H, hydrocarbyl and (III), wherein each R′ is independently R or OR and each R is, independently, H or a hydrocarbyl group; and lower alkyl acetals, ketals, hemiacetals and hemiketals of the carbonyl compound (2).Type: ApplicationFiled: December 16, 2002Publication date: November 6, 2003Inventors: Richard M. Lange, Stuart L. Bartley, Daniel M. Vargo
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Patent number: 6544935Abstract: A nitrogen-containing ester derived from a carboxy-containing interpolymer having a reduced specific viscosity (RSV) of from about 0.Type: GrantFiled: January 9, 2002Date of Patent: April 8, 2003Assignee: The Lubrizol CorporationInventors: Daniel M. Vargo, Craig D. Tipton, Richard M. Lange
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Patent number: 6492306Abstract: A composition comprising a hydrocarbon polymer having attached thereto pendant groups Aa and Bb wherein each A is independently selected from members of the group consisting of: groups of the formula and each B is independently selected from members of the group of formula: wherein each X is independently O, S, or NRb, and each Z is independently a group of the formula Ra is an ethylene group, a propylene group, which groups optionally have hydrocarbyl or hydroxyhydrocarbyl substituents, or wherein J is H, SH, NH2, or OH, and tautomers thereof; a is 0 or a number ranging from 1 to about 50, and b is a number ranging from 1 to about 30; wherein each of the groups is defined in greater detail herein.Type: GrantFiled: March 23, 2001Date of Patent: December 10, 2002Assignee: The Lubrizol CorporationInventors: Matthew R. Sivik, Richard M. Lange, Daniel M. Vargo, Paul E. Adams
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Patent number: 6486101Abstract: A composition comprising a hydrocarbon polymer having {overscore (M)}n ranging from 20,000 to about 500,000, when the polymer is not a star polymer, and up to about GPC peak molecular weight of 4,000,000 when the polymer is a star polymer having attached thereto pendant groups Aa and Bb wherein each A is independently a member of the group of formula —Q—Kk wherein each Q is independently an aliphatic or aromatic hydrocarbon group, each K is independently a member selected from the group consisting of amide groups, nitrile groups, ester groups and carboxylic acid groups, and each k is independently a number ranging from 1 to about 3, and when k≧2, groups —K on adjacent carbon atoms, taken together, may constitute a succinimide group, and a is 0 or a number ranging from 1 to about 50; and each B is independently a member of the group of formula: wherein each X is independently O, S, or NRb, each Rb is independently H, NH2, hydrocarbyl, hydroxyhydrocarbyl, or aminohydrocarbType: GrantFiled: April 30, 2001Date of Patent: November 26, 2002Assignee: The Lubrizol CorporationInventors: Carmen V. Luciani, Richard M. Lange, Daniel M. Vargo
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Publication number: 20010044388Abstract: A composition comprising a hydrocarbon polymer having attached thereto pendant groups Aa and Bb wherein each A is independently selected from members of the group consisting of:Type: ApplicationFiled: March 23, 2001Publication date: November 22, 2001Applicant: The Lubrizol CorporationInventors: Matthew R. Sivik, Richard M. Lange, Daniel M. Vargo, Paul E. Adams
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Publication number: 20010034967Abstract: A composition comprising a hydrocarbon polymer having {overscore (M)}n ranging from 20,000 to about 500,000, when the polymer is not a star polymer, and up to about GPC peak molecular weight of 4,000,000 when the polymer is a star polymer having attached thereto pendant groups Aa and Bb wherein each A is independently a member of the group of formula —Q—Kk wherein each Q is independently an aliphatic or aromatic hydrocarbon group, each K is independently a member selected from the group consisting of amide groups, nitrile groups, ester groups and carboxylic acid groups, and each k is independently a number ranging from 1 to about 3, and when k≧2, groups —K on adjacent carbon atoms, taken together, may constitute a succinimide group, and a is 0 or a number ranging from 1 to about 50; and each B is independently a member of the group of formula: 1Type: ApplicationFiled: April 30, 2001Publication date: November 1, 2001Applicant: The Lubrizol CorporationInventors: Carmen V. Luciani, Richard M. Lange, Daniel M. Vargo
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Patent number: 6288013Abstract: A composition comprising a hydrocarbon polymer having {overscore (M)}n ranging from 20,000 to about 500,000, when the polymer is not a star polymer, and up to about GPC peak molecular weight of 4,000,000 when the polymer is a star polymer having attached thereto pendant groups Aa and Bb wherein each A is independently selected from members of the group consisting of: groups of the formula wherein R3 is H or hydrocarbyl, R4 is a divalent hydrocarbylene group, n=0 or 1, and each of R9 and R10 is independently H, alkoxyhydrocarbyl, hydroxyhydrocarbyl, hydrocarbyl, aminohydrocarbyl, N-alkoxyalkyl- or hydroxyalkyl-substituted aminohydrocarbyl, or a group of the formula &Parenopenst;Y&Parenclosest;cR11—M, wherein each Y is independently a group of the formula each R11 is a divalent hydrocarbyl group, R12 is as defined above for R9 and R10, and M is H, hydrocarbyl, amino, an amide group, an amide-containing group, an acylamino group, an imide group, or an imide-contaType: GrantFiled: December 3, 1997Date of Patent: September 11, 2001Assignee: The Lubrizol CorporationInventors: Matthew R. Sivik, Richard M. Lange, Paul E. Adams, Daniel M. Vargo
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Patent number: 6265358Abstract: A composition comprising a hydrocarbon polymer having {overscore (M)}n ranging from 20,000 to about 500,000, when the polymer is not a star polymer, and up to about GPC peak molecular weight of 4,000,000 when the polymer is a star polymer having attached thereto pendant groups Aa and Bb wherein each A is independently a member of the group of formula —Q—Kk wherein each Q is independently an aliphatic or aromatic hydrocarbon group, each K is independently a member selected from the group consisting of amide groups, nitrile groups, ester groups and carboxylic acid groups, and each k is independently a number ranging from 1 to about 3, and when k≧2, groups —K on adjacent carbon atoms, taken together, may constitute a succinimide group, and a is 0 or a number ranging from 1 to about 50; and each B is independently a member of the group of formula: wherein each X is independently O, S, or NRb, each Rb is independently H, NH2, hydrocarbyl, hydroxyhydrocarbyl, or aminohydrocarbType: GrantFiled: December 3, 1997Date of Patent: July 24, 2001Assignee: The Lubrizol CorporationInventors: Carmen V. Luciani, Richard M. Lange, Daniel M. Vargo
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Patent number: 5688751Abstract: Two-stroke cycle engines can be effectively lubricated by supplying to the engine a mixture of an oil of lubricating viscosity and a hydrocarbyl-substituted hydroxyaromatic carboxylic acid or an ester, unsubstituted amide, hydrocarbyl-substituted amide, ammonium salt, hydrocarbylamine salt, or monovalent metal salt thereof in an amount suitable to reduce piston deposits in said engine. The mixture supplied to the engine contains less than 0.06 percent by weight of divalent metals.Type: GrantFiled: August 14, 1996Date of Patent: November 18, 1997Assignee: The Lubrizol CorporationInventors: William K. S. Cleveland, Jack L. Karn, Daniel M. Vargo
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Patent number: 5202036Abstract: A diesel lubricant exhibiting improved ability to minimize undesirable viscosity increases when used in diesel engines is described. More particularly, in accordance with the present invention, a diesel lubricant is described which comprises a major amount of an oil of lubricating viscosity and a minor amount, sufficient to minimize undesirable viscosity increases of the lubricant when used in diesel engines, of a composition comprising (A) at least one carboxylic derivative composition produced by reacting at least one substituted succinic acylating agent with at least one amino compound containing at least one --NH-- group wherein said acylating agent consists of substituent groups and succinic groups wherein the substituent groups are derived from polyalkene characterized by an Mn value of at least about 1200 and an Mw/Mn ratio of at least about 1.5, and wherein said acylating agents are characterized by the presence within their structure of an average of at least about 1.Type: GrantFiled: May 29, 1992Date of Patent: April 13, 1993Assignee: The Lubrizol CorporationInventors: David E. Ripple, Jack L. Karn, Daniel M. Vargo