Patents by Inventor Stephen Boyde
Stephen Boyde 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: 9816045Abstract: An automotive engine oil and/or fuel comprising a base stock and an organic polymeric friction reducing additive is claimed. A method of reducing friction in an automotive engine oil and/or fuel by the addition of the organic polymeric friction reducing additive to the base stock is also claimed.Type: GrantFiled: December 2, 2015Date of Patent: November 14, 2017Assignee: CRODA INTERNATIONAL PLCInventors: Lee Thompson, Steven James Randles, Stephen Boyde, John Gamwell, Nicola Readman
-
Publication number: 20160090544Abstract: An automotive engine oil and/or fuel comprising a base stock and an organic polymeric friction reducing additive is claimed. A method of reducing friction in an automotive engine oil and/or fuel by the addition of the organic polymeric friction reducing additive to the base stock is also claimed.Type: ApplicationFiled: December 2, 2015Publication date: March 31, 2016Inventors: Lee Thompson, Steven James Randles, Stephen Boyde, John Gamwell, Nicola Readman
-
Patent number: 9228152Abstract: An automotive engine oil and/or fuel comprising a base stock and an organic polymeric friction reducing additive is claimed. A method of reducing friction in an automotive engine oil and/or fuel by the addition of the organic polymeric friction reducing additive to the base stock is also claimed.Type: GrantFiled: March 3, 2011Date of Patent: January 5, 2016Assignee: CRODA INTERNATIONAL PLCInventors: Lee Thompson, Steven James Randles, Stephen Boyde, John Gamwell, Nicola Readman
-
Patent number: 8673831Abstract: An engine lubricant, especially an SAE OW engine lubricant is described. The engine lubricant has at least 15 wt % of at least one monoester and not more than 15 wt % of additives, wherein said at least one monoester, or mixture of said monoesters if more than one is present, has a kinematic viscosity at 100° C. of not more than 3.3, a viscosity index of at least 130 and a Noack evaporation loss of not more than 15 wt %. The monoester is preferably the reaction product of a monohydric alcohol and a monocarboxylic acid wherein said monohydric alcohol is at least one saturated branched-chain aliphatic monohydric alcohol having between 16 and 36, carbon atoms and wherein said monocarboxylic acid is at least one saturated straight-chain aliphatic monocarboxylic acid having between 5 and 10, preferably 5 and 7, carbon atoms. In preferred lubricants, the monoester, or mixtures of monoesters, have a pour point of not more than ?30° C. and a non-polarity index of at least 80.Type: GrantFiled: April 17, 2009Date of Patent: March 18, 2014Assignee: Croda International PLCInventors: Jane Kitching, Steven James Randles, Stephen Boyde, Josephine Lefevre
-
Patent number: 8669215Abstract: Gear oil formulations comprising a gear oil and a film forming agent are disclosed. The film forming agent comprises a polymeric ester which is the reaction product of at least one polyfunctional alcohol, a dimer fatty acid, an optional aliphatic dicarboxylic acid having 5 to 18 carbon atoms and one or more ingredients to reduce the acid value of the polymeric ester to below 5 mgKOH/g with the resultant polymeric ester having a kinematic viscosity at 100° C. ranging from 400 to 5000 mm2/s and a weight average molecular weight ranging from 5000 to 20000. When used as an automotive gear oil formulation the specifications for API GL-4 gear oils are at least satisfied. Use of the gear oil formulation in manual transmissions, transfer cases and differentials and use of the gear oil formulation in an industrial gear suitable for lubricating spur, helical, bevel, worm and hypoid gears are disclosed. Methods of lubrication are also disclosed.Type: GrantFiled: November 27, 2009Date of Patent: March 11, 2014Assignee: Croda International PLCInventors: Stephen James Randles, Stephen Boyde, Josephine Anne Lefevre
-
Publication number: 20130035270Abstract: An automotive engine oil and/or fuel comprising a base stock and an organic polymeric friction reducing additive is claimed. A method of reducing friction in an automotive engine oil and/or fuel by the addition of the organic polymeric friction reducing additive to the base stock is also claimed.Type: ApplicationFiled: March 3, 2011Publication date: February 7, 2013Applicant: Croda International PLCInventors: Lee Thompson, Steven James Randles, Stephen Boyde, John Gamwell, Nicola Readman
-
Publication number: 20110269655Abstract: Gear oil formulations comprising a gear oil and a film forming agent are disclosed. The film forming agent comprises a polymeric ester which is the reaction product of at least one polyfunctional alcohol, a dimer fatty acid, an optional aliphatic dicarboxylic acid having 5 to 18 carbon atoms and one or more ingredients to reduce the acid value of the polymeric ester to below 5 mgKOH/g with the resultant polymeric ester having a kinematic viscosity at 100° C. ranging from 400 to 5000 mm2/s and a weight average molecular weight ranging from 5000 to 20000. When used as an automotive gear oil formulation the specifications for API GL-4 gear oils are at least satisfied. Use of the gear oil formulation in manual transmissions, transfer cases and differentials and use of the gear oil formulation in an industrial gear suitable for lubricating spur, helical, bevel, worm and hypoid gears are disclosed. Methods of lubrication are also disclosed.Type: ApplicationFiled: November 27, 2009Publication date: November 3, 2011Inventors: Stephen James Randles, Stephen Boyde, Josephine Anne Lefevre
-
Publication number: 20110039740Abstract: An engine lubricant, especially an SAE OW engine lubricant is described. The engine lubricant has at least 15 wt % of at least one monoester and not more than 15 wt % of additives, wherein said at least one monoester, or mixture of said monoesters if more than one is present, has a kinematic viscosity at 100° C. of not more than 3.3, a viscosity index of at least 130 and a Noack evaporation loss of not more than 15 wt %. The monoester is preferably the reaction product of a monohydric alcohol and a monocarboxylic acid wherein said monohydric alcohol is at least one saturated branched-chain aliphatic monohydric alcohol having between 16 and 36, carbon atoms and wherein said monocarboxylic acid is at least one saturated straight-chain aliphatic monocarboxylic acid having between 5 and 10, preferably 5 and 7, carbon atoms. In preferred lubricants, the monoester, or mixtures of monoesters, have a pour point of not more than ?30° C. and a non-polarity index of at least 80.Type: ApplicationFiled: April 17, 2009Publication date: February 17, 2011Applicant: Croda International PLCInventors: Jane Kitching, Steven James Randles, Stephen Boyde, Josephine Lefevre
-
Publication number: 20100093579Abstract: An engine lubricant, especially an SAE OW engine lubricant is described. The engine lubricant has at least 15 wt % of at least one diester and not more than 15 wt % of additives, wherein said at least one diester, or mixture of said diesters if more than one is present, has a kinematic viscosity at 100° C. of not more than 3.3, a viscosity index of at least 130, a pour point of not more than ?30° C. and a Noack evaporation loss of not more than 15 wt %.Type: ApplicationFiled: February 21, 2008Publication date: April 15, 2010Applicant: Croda International PLC`Inventors: Stephen Boyde, Steven James Randles
-
Publication number: 20030040445Abstract: A lubricant composition has a synthetic lubricant base oil, preferably a polyol ester, and a polyether foam-inducing additive. The composition is suitable for use in a refrigerant system, particularly with HFC refrigerant gases. The foam-inducing additive is an alternative to known silicon-containing foam-inducing additives, which are not suitable for all refrigerant systems.Type: ApplicationFiled: July 30, 2002Publication date: February 27, 2003Applicant: Imperial Chemical Industries PlcInventor: Stephen Boyde