Patents by Inventor Dale D. Carr
Dale D. Carr 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: 8685271Abstract: Polyol ester lubricant compositions comprising predominately straight chain C5-10 alkylcarboxlate esters of neopentyl alcohols, for example, straight chain C5-10 alkylcarboxlate esters of one or more of trimethylol propane, pentaerythritol, di-pentaerythritol, tri-pentaerythritol or pentaerythritol oligomers, and working fluids comprising said lubricant compositions and a hydrocarbon refrigerant, suitable for heat transfer devices including refrigeration and air conditioning systems are provided. The polyol ester lubricant compositions have a kinematic viscosity at 40° C. of 22-125 cSt and a viscosity index of greater than 140, and are characterized by having very high lubricity, excellent load carrying properties and excellent low temperature properties.Type: GrantFiled: February 5, 2013Date of Patent: April 1, 2014Assignee: Chemtura CorporationInventors: Dale D. Carr, Jeffrey A. Hutter, Richard Kelley, Roberto Urrego, Edward T. Hessell
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Publication number: 20130200294Abstract: Polyol ester lubricant compositions comprising predominately straight chain C5-10 alkylcarboxlate esters of neopentyl alcohols, for example, straight chain C5-10 alkylcarboxlate esters of one or more of trimethylol propane, pentaerythritol, di-pentaerythritol, tri-pentaerythritol or pentaerythritol oligomers, and working fluids comprising said lubricant compositions and a hydrocarbon refrigerant, suitable for heat transfer devices including refrigeration and air conditioning systems are provided. The polyol ester lubricant compositions have a kinematic viscosity at 40° C. of 22-125 cSt and a viscosity index of greater than 140, and are characterized by having very high lubricity, excellent load carrying properties and excellent low temperature properties.Type: ApplicationFiled: February 5, 2013Publication date: August 8, 2013Applicant: CHEMTURA CORPORATIONInventors: Dale D. Carr, Jeffrey A. Hutter, Richard Kelley, Roberto Urrego, Edward T. Hessell
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Publication number: 20040209788Abstract: An improved synthetic ester lubricant base stock formed by reacting a neopentyl glycol with a mixture of aliphatic monocarboxylic acids is provided. The mixture of acids includes straight-chain acids having from 5 to 10 carbon atoms and an iso-acid having from 7 to 10 carbon atoms, preferably iso-nonanoic acid, wherein the iso-acid is present in about 60-90 weight percent of the acid charge. The base stock is mixed with a conventional ester lubricant additive package to form a lubricant having a viscosity at 210° F. of at least 7.0 with the resulting lubricants having a decreased tendency to form deposits in high temperature chain oil applications.Type: ApplicationFiled: November 7, 2003Publication date: October 21, 2004Inventors: Thomas G. Schaefer, Dale D. Carr
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Patent number: 6774093Abstract: A high viscosity synthetic ester base stock of about ISO 68 to 400 is formed from a neopentylpolyol condensed with at least one monocarboxylic acid selected from the group consisting of linear acids having between 4 to 10 carbon atoms and branched chain acids having from 5 to 10 carbon atoms in an excess of hydroxyl to carboxylic acid groups to form a partial polyneopentylpolyol ester that is further reacted with the same or similar acid to form a high viscosity polyneopentylpolyol ester. Lubricants formed from the base stocks have satisfactory miscibility with standard highly or fully fluorinated refrigeration fluids.Type: GrantFiled: July 12, 2002Date of Patent: August 10, 2004Assignee: Hatco CorporationInventors: Dale D. Carr, Michael A. McHenry, Jeremy P. Styer
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Publication number: 20040092410Abstract: A high viscosity synthetic ester base stock of about ISO 68 to 400 is formed from a neopentylpolyol condensed with at least one monocarboxylic acid selected from the group consisting of linear acids having between 4 to 10 carbon atoms and branched chain acids having from 5 to 10 carbon atoms in an excess of hydroxyl to carboxylic acid groups to form a partial polyneopentylpolyol ester that is further reacted with the same or similar acid to form a high viscosity polyneopentylpolyol ester. Lubricants formed from the base stocks have satisfactory miscibility with standard highly or fully fluorinated refrigeration fluids.Type: ApplicationFiled: July 12, 2002Publication date: May 13, 2004Inventors: Dale D. Carr, Michael A. McHenry, Jeremy P. Styer
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Publication number: 20030104956Abstract: An improved synthetic ester lubricant base stock formed by reacting a neopentyl glycol with a mixture of aliphatic monocarboxylic acids is provided. The mixture of acids includes straight-chain acids having from 5 to 10 carbon atoms and an iso-acid having from 7 to 10 carbon atoms, preferably iso-nonanoic acid, wherein the iso-acid is present in about 60-90 weight percent of the acid charge. The base stock is mixed with a conventional ester lubricant additive package to form a lubricant having a viscosity at 210° F. of at least 7.0 with the resulting lubricants having a decreased tendency to form deposits in high temperature chain oil applications.Type: ApplicationFiled: September 30, 2002Publication date: June 5, 2003Inventors: Thomas G. Schaefer, Dale D. Carr
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Patent number: 6551968Abstract: A novel biodegradable polyneopentyl polyol (PNP) ester based synthetic ester basestock that includes a PNP ester admixed with a dicarboxylic acid ester coupling agent is provided. The PNP ester-coupling agent mixture is blended further with minor amounts of a single, or mixture of, additional high molecular weight linear or branched chain ester. The final basestocks are compatible with standard lubricant additive packages and miscible with gasoline to provide biodegradable lubricants that have improved viscosity characteristics, good low temperature properties, and improved lubricity for 2-stroke engine lubricant applications.Type: GrantFiled: January 5, 2001Date of Patent: April 22, 2003Assignee: Hatco CorporationInventors: Michael A. McHenry, Dale D. Carr, Jeremy P. Styer
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Publication number: 20020193260Abstract: A novel biodegradable polyneopentyl polyol (PNP) ester based synthetic ester basestock that includes a PNP ester admixed with a dicarboxylic acid ester coupling agent is provided. The PNP ester-coupling agent mixture is blended further with minor amounts of a single, or mixture of, additional high molecular weight linear or branched chain ester. The final basestocks are compatible with standard lubricant additive packages and miscible with gasoline to provide biodegradable lubricants that have improved viscosity characteristics, good low temperature properties, and improved lubricity for 2-stroke engine lubricant applications.Type: ApplicationFiled: January 5, 2001Publication date: December 19, 2002Inventors: Michael A. McHenry, Dale D. Carr, Jeremy P. Styer
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Patent number: 6444626Abstract: A synthetic lubricant composition is a blend of a polyol ester admixed with effective amounts of an antioxidant, yellow metal pacifier and rust inhibitors. The polyol ester blend includes a major proportion of poly(neopentyl polyol) ester blend formed by reacting poly(pentaerythritol) partial esters with at least one C7 to C12 carboxylic acid mixed with an ester formed by reacting a polyol having at least two hydroxyl groups and at least one C8-C10 carboxylic acid. Preferably, the acids are linear and avoid those which can cause odors during use. Effective additives include secondary arylamine antioxidants, triazole derivative yellow metal pacifier and an amino acid derivative and substituted primary and secondary amine and/or diamine rust inhibitor.Type: GrantFiled: May 8, 2000Date of Patent: September 3, 2002Assignee: Hatco CorporationInventors: Michael A. McHenry, Dale D. Carr, Thomas G. Schaefer
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Patent number: 6436881Abstract: Improved synthetic lubricants based on a 100% polyol ester composition suitable for use in high temperature static chain oil applications is provided. The lubricant includes a base stock based on a polyol ester that is the reaction product of a neopentyl polyol including a major proportion of dipentaerythritol and a mixture of C5 to C12 carboxylic acids. The preferred carboxylic acid mixture includes heptanoic (C7) acid, caprylic/capric (C8-10) acid and isononanoic (3, 5, 5-trimethylhyxanoic acid (iso-C9). The polyol base stock is mixed with an additive package that includes a viscosity index improver (tackifier), antioxidants, extreme pressure/antiwear agents and a corrosion inhibitor. The additive package may be added in up to about 20 percent by weight of the lubricant to provide a viscosity of the lubricant at 40° C. of at least about 275 cSt and at 100° C. of no less than about 25.0 cSt.Type: GrantFiled: June 1, 2001Date of Patent: August 20, 2002Assignee: Hatco CorporationInventors: Michael A. McHenry, Dale D. Carr, Jeffrey A. Hutter
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Patent number: 5895778Abstract: A synthetic lubricant composition is a blend of a polyol ester blend admixed with effective amounts of an antioxidant, yellow metal pacifier and rust inhibitors. The polyol ester blend includes a major proportion of poly(neopentyl polyol) ester blend formed by reacting poly(pentaerythritol) with at least one C.sub.7 to C.sub.12 carboxylic acid mixed with an ester formed by reacting a polyol having at least two hydroxyl groups and at least one C.sub.8 -C.sub.10 carboxylic acid. Preferably, the acids are linear and avoid those which can cause odors during use. Effective additives include secondary arylamine antioxidants, triozole derivative yellow metal pacifier and an amino acid derivative and substituted primary and secondary amine and/or diamine rust inhibitor.Type: GrantFiled: August 25, 1997Date of Patent: April 20, 1999Assignee: Hatco CorporationInventors: Michael A. McHenry, Dale D. Carr, Thomas G. Schaefer
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Patent number: 5503761Abstract: A synthetic ester base stock having reduced deposit formation which comprises the reaction product of technical pentaerythritol and a mixture of carboxylic acids. The mixture of carboxylic acids comprises (1) at least one C.sub.8 -C.sub.10 carboxylic acid having 6 or less reactive hydrogens, (2) at least one C.sub.5 -C.sub.7 carboxylic acid having 6 or less reactive hydrogens and (3) at least one C.sub.6 -C.sub.10 carboxylic acid having 6 or more reactive hydrogens.Type: GrantFiled: August 2, 1994Date of Patent: April 2, 1996Assignee: Exxon Research & Engineering Co./Hatco Corp.Inventors: Thomas L. Ashcraft, Jr., Paul J. Berlowitz, Max J. Wisotsky, Dale D. Carr, Thomas G. Schaefer
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Patent number: 4826633Abstract: An improved synthetic ester lubricant base stock formed by reacting at least one of trimethylolpropane and monopentaerythritol with a mixture of aliphatic monocarboxylic acids is provided. The mixture of acids including straight-chain acids having from 5 to 10 carbon atoms and an iso-acid having from 6 to 10 carbon atoms, preferably iso-nonanoic acid. The base stock is mixed with a conventional ester lubricant additive package to form a lubricant having a viscosity at 210.degree. F. of at leasts 5.0 centistokes and pour point of at least as low as -65.degree. F. The resulting lubricants have a decreased tendency to form deposits in gas turbine engines.Type: GrantFiled: October 16, 1986Date of Patent: May 2, 1989Assignee: Hatco Chemical CorporationInventors: Dale D. Carr, Nicholas DeGeorge, deceased
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Patent number: 4655946Abstract: A turbo lube oil resistant to sea water corrosion is disclosed. The turbo lube oil comprises:A. a basestock;B. an alkylphenol;C. a salicylate;D. polyisobutylene-succinic acid/amine reaction product;E. a phosphate salt; andF. a naphthenate.Type: GrantFiled: November 7, 1985Date of Patent: April 7, 1987Assignee: Exxon Research and Engineering CompanyInventors: Stephen J. Metro, Dale D. Carr
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Patent number: 4440657Abstract: A synthetic ester lubricating oil composition having effective high temperature properties and hydrolytic stability comprising a selected synthetic ester base oil and the additive combination of a selected tertiary-butylphenyl substituted phosphate ester and a selected alkyl amine. Additionally, a method for providing hydrolytically stable turbine oils which comprises adding a combination of a selected tertiary-butylphenyl phosphate and a selected alkyl amine to a synthetic ester base oil.Type: GrantFiled: September 1, 1982Date of Patent: April 3, 1984Assignee: Exxon Research and Engineering Co.Inventors: Stephen J. Metro, Dale D. Carr