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).

  • Patent number: 8685271
    Abstract: 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: Grant
    Filed: February 5, 2013
    Date of Patent: April 1, 2014
    Assignee: Chemtura Corporation
    Inventors: Dale D. Carr, Jeffrey A. Hutter, Richard Kelley, Roberto Urrego, Edward T. Hessell
  • Publication number: 20130200294
    Abstract: 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: Application
    Filed: February 5, 2013
    Publication date: August 8, 2013
    Applicant: CHEMTURA CORPORATION
    Inventors: Dale D. Carr, Jeffrey A. Hutter, Richard Kelley, Roberto Urrego, Edward T. Hessell
  • Publication number: 20040209788
    Abstract: 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: Application
    Filed: November 7, 2003
    Publication date: October 21, 2004
    Inventors: Thomas G. Schaefer, Dale D. Carr
  • Patent number: 6774093
    Abstract: 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: Grant
    Filed: July 12, 2002
    Date of Patent: August 10, 2004
    Assignee: Hatco Corporation
    Inventors: Dale D. Carr, Michael A. McHenry, Jeremy P. Styer
  • Publication number: 20040092410
    Abstract: 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: Application
    Filed: July 12, 2002
    Publication date: May 13, 2004
    Inventors: Dale D. Carr, Michael A. McHenry, Jeremy P. Styer
  • Publication number: 20030104956
    Abstract: 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: Application
    Filed: September 30, 2002
    Publication date: June 5, 2003
    Inventors: Thomas G. Schaefer, Dale D. Carr
  • Patent number: 6551968
    Abstract: 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: Grant
    Filed: January 5, 2001
    Date of Patent: April 22, 2003
    Assignee: Hatco Corporation
    Inventors: Michael A. McHenry, Dale D. Carr, Jeremy P. Styer
  • Publication number: 20020193260
    Abstract: 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: Application
    Filed: January 5, 2001
    Publication date: December 19, 2002
    Inventors: Michael A. McHenry, Dale D. Carr, Jeremy P. Styer
  • Patent number: 6444626
    Abstract: 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: Grant
    Filed: May 8, 2000
    Date of Patent: September 3, 2002
    Assignee: Hatco Corporation
    Inventors: Michael A. McHenry, Dale D. Carr, Thomas G. Schaefer
  • Patent number: 6436881
    Abstract: 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: Grant
    Filed: June 1, 2001
    Date of Patent: August 20, 2002
    Assignee: Hatco Corporation
    Inventors: Michael A. McHenry, Dale D. Carr, Jeffrey A. Hutter
  • Patent number: 5895778
    Abstract: 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: Grant
    Filed: August 25, 1997
    Date of Patent: April 20, 1999
    Assignee: Hatco Corporation
    Inventors: Michael A. McHenry, Dale D. Carr, Thomas G. Schaefer
  • Patent number: 5503761
    Abstract: 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: Grant
    Filed: August 2, 1994
    Date of Patent: April 2, 1996
    Assignee: Exxon Research & Engineering Co./Hatco Corp.
    Inventors: Thomas L. Ashcraft, Jr., Paul J. Berlowitz, Max J. Wisotsky, Dale D. Carr, Thomas G. Schaefer
  • Patent number: 4826633
    Abstract: 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: Grant
    Filed: October 16, 1986
    Date of Patent: May 2, 1989
    Assignee: Hatco Chemical Corporation
    Inventors: Dale D. Carr, Nicholas DeGeorge, deceased
  • Patent number: 4655946
    Abstract: 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: Grant
    Filed: November 7, 1985
    Date of Patent: April 7, 1987
    Assignee: Exxon Research and Engineering Company
    Inventors: Stephen J. Metro, Dale D. Carr
  • Patent number: 4440657
    Abstract: 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: Grant
    Filed: September 1, 1982
    Date of Patent: April 3, 1984
    Assignee: Exxon Research and Engineering Co.
    Inventors: Stephen J. Metro, Dale D. Carr