Patents by Inventor Dean Thetford
Dean Thetford 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).
-
Patent number: 7872070Abstract: The present invention provides a composition containing a particulate solid, an organic medium and/or water and a compound of Formula (1) and salts thereof Formula 1 wherein R is H or C1-30-optionally substituted hydrocarbyl; or R may be R?C?O (an acyl group where R? is hydrogen, alkyl, aryl or an optionally substituted alkyl or aryl); U is oxygen, —NH or —NR??; R?? is a C1-30-optionally substituted hydrocarbyl Y is C2-4-alkyleneoxy; T is the residue of substituted acetic acid or propionic acid; Z is the residue of a polyamine and/or polyimine; W is the residue of an oxide, urea or dibasic acid or anhydride thereof, or mixtures thereof; x is from 2 to 90; and v represents the maximum available number of amino and/or imino groups in Z which does not carry the group R—U—(Y)x-T-.Type: GrantFiled: December 6, 2005Date of Patent: January 18, 2011Assignee: Lubrizol LimitedInventor: Dean Thetford
-
Publication number: 20100263575Abstract: The present invention relates to novel dispersants containing at least two lipophilic groups, and the dispersants contain a hydrophilic component present in an amount sufficient to at least partially disperse the amphiphilic compound in aqueous media. The invention further provides for the use of the novel dispersants in various applications.Type: ApplicationFiled: August 7, 2007Publication date: October 21, 2010Applicant: LUBRIZOL LIMITEDInventors: Dean Thetford, John J. Mullay, Christopher J. Kolp, William R. Sweet
-
Publication number: 20100257779Abstract: A quaternary ammonium salt detergent made from the reaction product of the reaction of: (a) a hydrocarbyl substituted acylating agent and a compound having an oxygen or nitrogen atom capable of condensing with said acylating agent and further having a tertiary amino group; and (b) a quaternizing agent suitable for converting the tertiary amino group to a quaternary nitrogen and the use of such quaternary ammonium salt detergents in a fuel composition to reduce intake valve deposits.Type: ApplicationFiled: June 24, 2010Publication date: October 14, 2010Applicant: The Lubrizol CorporationInventors: William Barton, Mark C. Davies, David J. Moreton, Paul R. Stevenson, Dean Thetford
-
Publication number: 20100210767Abstract: The invention relates to a composition containing a particulate solid, a plastic material (such as a thermoplastic polymer) and a compound capable of having dispersant properties. The compound may be obtained/obtainable by reacting (i) a carboxylic acid or anhydride thereof with (ii) an amine or an aminoalcohol, to form a product, wherein the carboxylic acid contains lipophilic group R containing six or more carbon atoms; and wherein the product formed is derived from a molar ratio of (i) to (ii) is either: (a) 1:1 or greater when (i) is a carboxylic acid anhydride, or (b) ratio of greater than 1:1 when (i) is a carboxylic acid. The invention further relates to novel compounds, and the use of the compound as a dispersant.Type: ApplicationFiled: July 31, 2008Publication date: August 19, 2010Applicant: LUBRIZOL ADVANCED MATERIALS, INC.Inventors: Patrick J. Sunderland, Dean Thetford
-
Patent number: 7767750Abstract: The present invention provides a composition containing a particulate solid, an organic medium and/or water and a compound of Formula (1) and salts thereof; wherein R is C1-50-optionally substituted hydrocarbyl; Y is C2-4-alkyleneoxy; T is C2-4 alkylene; A is the residue of a dibasic acid or anhydride thereof; Z is the residue of a polyamine and/or polyimine; W is the residue of an oxide, urea or dibasic acid or anhydride thereof; x is from 2 to 60; and v represents the maximum available number of amino and/or imino groups in Z which does not carry the group RO—(Y)x-T-NH-A-. The invention further discloses the composition as a dispersant for an organic media.Type: GrantFiled: July 14, 2004Date of Patent: August 3, 2010Assignee: The Lubrizol CorporationInventor: Dean Thetford
-
Patent number: 7732514Abstract: A composition comprising a plastics material, an inorganic particulate solid such as aluminium trihydrate and a coupling modified of formula A-(X—Y—CO)m(O—B—CO)nOH wherein A is a moiety containing a terminating ethylenic group with one or two adjacent carbonyl groups; X is a direct bond, O or N; Y is C1-18-alkylene or C2-18-alkenylene; B is C2-6-alkylene; m is from 1 to 4 and n is from 0 to 5 provided that when A contains two carbonyl groups adjacent to the ethylenic group then X is N. Specific examples of coupling modifiers are ?-carboxyl ethylacrylate and 5-carboxy pentyl maleimide.Type: GrantFiled: February 19, 2003Date of Patent: June 8, 2010Assignee: The Lubrizol CorporationInventors: Roger Norman Rothon, Dean Thetford, Stuart Nicholas Richards, John David Schofield
-
Publication number: 20100084601Abstract: The invention relates to a composition containing a particulate solid, an organic or aqueous medium, and a compound with a head group derived from phosphoric acid or sulphuric acid. The invention further relates to novel compounds, and the use of the compound as a dispersant.Type: ApplicationFiled: March 28, 2008Publication date: April 8, 2010Applicant: LUBRIZOL LIMITEDInventors: Dean Thetford, Patrick J. Sunderland
-
Patent number: 7683120Abstract: The present invention provides a composition comprising (i) a particulate solid; (ii) an organic medium; and (iii) a salt of a hydrocarbyl-substituted acrylating agent. The invention further provides for the use of the composition in various applications including paints, inks or mill bases.Type: GrantFiled: June 13, 2006Date of Patent: March 23, 2010Assignee: Lubrizol LimitedInventors: Dean Thetford, Neil L. Simpson
-
Publication number: 20100069541Abstract: The invention relates to a composition containing a particulate solid, an organic or aqueous medium, and a compound with a head group derived from phosphorous acid. The invention further relates to novel compounds, and the use of the compound as a dispersant.Type: ApplicationFiled: March 28, 2008Publication date: March 18, 2010Applicant: LUBRIZOL LIMITEDInventors: Dean Thetford, Patrick J. Sunderland
-
Patent number: 7671119Abstract: The present invention provides a composition containing a particulate solid, an organic medium and/or water and a compound of Formula (1) and salts thereof: Formula (1) wherein R and R? are independently H or C1-30-optionally substituted hydrocarbyl; or R is H or C1-30-optionally substituted hydrocarbyl and R? is R?C?O (an acyl group where R? is hydrogen, alkyl or an optionally substituted alkyl or aryl or an optionally substituted aryl); Y is C2-4-alkyleneoxy; T is C2-4 alkylene; A is the residue of a dibasic acid or anhydride thereof; Z is the residue of a polyamine and/or polyimine; W is the residue of an oxide, urea or dibasic acid or anhydride thereof, or mixtures thereof; x is from 2 to 90; and v represents the maximum available number of amino and/or imino groups in Z which does not carry the group RR?N-T-O—(Y)X-T-NH-A-.Type: GrantFiled: December 6, 2005Date of Patent: March 2, 2010Assignee: Lubrizol LimitedInventor: Dean Thetford
-
Publication number: 20100048781Abstract: The invention relates to a composition containing a particulate solid, plastic material (such as a vinyl chloride polymer), and a compound containing an acidic group.Type: ApplicationFiled: December 14, 2007Publication date: February 25, 2010Applicant: LUBRIZOL LIMITEDInventors: John D. Schofield, Dean Thetford, Patrick J. Sunderland
-
Publication number: 20100035958Abstract: The invention relates to novel compounds containing a carboxylic acid head group. The invention further provides compositions containing the novel compounds, a particulate solid and an organic medium or water.Type: ApplicationFiled: September 7, 2007Publication date: February 11, 2010Applicant: LUBRIZOL LIMITEDInventor: Dean Thetford
-
Publication number: 20090306252Abstract: The invention relates to a composition containing a particulate solid, a plastic material and a compound. The invention further relates to novel compounds, and the use of the coupling agents.Type: ApplicationFiled: October 23, 2007Publication date: December 10, 2009Applicant: LUBRIZOL LIMITEDInventor: Dean Thetford
-
Publication number: 20090186981Abstract: The present invention provides a composition containing a particulate solid, an organic medium and/or water and a compound of Formula (1) and salts thereof. Formula 1 wherein R is H or C1-30-optionally substituted hydrocarbyl; or R may be R?C—O (an acyl group where R? is hydrogen, alkyl, aryl or an optionally substituted alkyl or aryl); U is oxygen, —NH or —NR??; R?? is a C1-30-optionally substituted hydrocarbyl Y is C2-4-alkyleneoxy; T is the residue of substituted acetic acid or propionic acid; Z is the residue of a polyamine and/or polyimine; W is the residue of an oxide, urea or dibasic acid or anhydride thereof, or mixtures thereof; x is from 2 to 90; and v represents the maximum available number of amino and/or imino groups in Z which does not carry the group R—U—(Y)x-T-.Type: ApplicationFiled: December 6, 2005Publication date: July 23, 2009Applicant: Noveon Inc.Inventor: Dean Thetford
-
Publication number: 20090131555Abstract: The present invention provides a dispersant of Formula (1): E-O—(Y)x-T-NR?-A-Z-W0-v, and salts thereof, wherein E is R or R—NR?-T-; R is H or C1-50-optionally substituted hydrocarbyl; R? is a residue of an optionally substituted alkyl (meth)acrylate or (meth)acrylamide, or a residue of an epoxide, or a C1-8-optionally substituted hydrocarbyl group; Y is C2-4-alkyleneoxy; T is C2-4 alkylene; A is the residue of a dibasic acid or anhydride thereof; Z is the residue of a polyamine and/or polyimine; W is the residue of an oxide, urea or dibasic acid or anhydride thereof; x is from 2 to 90; and v represents an integer variable. The invention further provides a composition comprising a particulate solid, an organic medium and/or water and the dispersant.Type: ApplicationFiled: May 1, 2006Publication date: May 21, 2009Applicant: Lubrizol LimitedInventor: Dean Thetford
-
Publication number: 20090093569Abstract: A composition comprising a particulate Solid, an organic medium and a compound with an alkyleneoxy compound with an inorganic acidic polar head group (Z), wherein the compound is defined by Formula (1) and salts thereof: U—(Y)x-T-N(G)r(B-Z)q (Formula 1) wherein U is independently R?—N—(C)-T?-O—, or R—O—; R or R? may be the same or different and are independently H or C1-50-optionally substituted hydrocarbyl, or hydrocarbonyl group (acyl group), or the residue of an epoxide, or the residue of an optionally substituted (meth) acrylic ester or amide group; Y is C2-4-alkyleneoxy; T or T? is independently C2-4 alkylene; B is an alkylene group, such as, methylene; Z is an inorganic acidic polar head group, such as, a sulphur or phosphorus acidic polar head group; G and G? may be the same or different and are independently H or C1-50-optionally substituted hydrocarbyl or C1-50-optionally substituted hydrocarbyl or hydrocarbonyl group or the residue of an epoxide, or the residue of an optionally substituted (meth) acType: ApplicationFiled: December 14, 2006Publication date: April 9, 2009Applicant: LUBRIZOL LIMITEDInventors: Dean Thetford, Patrick J. Sunderland, Neil L. Simpson, Osamu Morimoto, Fumitake Unezaki
-
Publication number: 20080307698Abstract: A quaternary ammonium salt detergent made from the reaction product of the reaction of: (a) a hydrocarbyl substituted acylating agent and a compound having an oxygen or nitrogen atom capable of condensing with said acylating agent and further having a tertiary amino group; and (b) a quaternizing agent suitable for converting the tertiary amino group to a quaternary nitrogen and the use of such quaternary ammonium salt detergents in a fuel composition to reduce intake valve deposits.Type: ApplicationFiled: June 13, 2006Publication date: December 18, 2008Applicant: THE LUBRIZOL CORPORATIONInventors: William Barton, Mark C. Davies, David J. Moreton, Paul R. Stevenson, Dean Thetford
-
Publication number: 20080281039Abstract: The present invention provides a dispersant and compositions thereof. The dispersant is a residue of a non-aromatic hydrocarbyl substituted carboxylic acid containing three or more acid groups (A), wherein the dispersant may be represented by the Formula and salts thereof: [U—(Y)x-T-N(R1)c-A]d-Z(Q1)j-Wc, wherein the variables are defined herein.Type: ApplicationFiled: December 5, 2006Publication date: November 13, 2008Applicant: LUBRIZOL LIMITEDInventors: Dean Thetford, Neil L. Simpson
-
Patent number: 7442327Abstract: Dispersions useful in making capacitors, printed circuit boards, etc., comprising an electronic particulate solid, a carrier and a dispersant of formula (1): R—(O-A-CO)x(O—B—CO)y-Z wherein R is hydrogen or a polymerisation terminating group; A is C8-20-alkylene and/or C8-20-alkenylene; B is C1-6-alkylene or a lactone thereof; Z is hydroxyl or a basic group or a moiety containing a basic group; x is from 2 to 45; Y is from 0 to 15; and the ration of x:y is not less than 3:1, the carrier is a high boiling organic liquid having a boiling point between 150 and 350° C. selected from monohydric alcohols and esters of dialkylene glycol monoalkyl esters.Type: GrantFiled: March 5, 2004Date of Patent: October 28, 2008Assignee: The Lubrizol CorporationInventors: Dean Thetford, John David Schofield
-
Publication number: 20080207826Abstract: The present invention provides a composition comprising (i) a particulate solid; (ii) an organic medium; and (iii) a salt of a hydrocarbyl-substituted acrylating agent. The invention further provides for the use of the composition in various applications including paints, inks or mill bases.Type: ApplicationFiled: June 13, 2006Publication date: August 28, 2008Applicant: LUBRIZOL LIMITEDInventors: Dean Thetford, Neil L. Simpson