Patents by Inventor Neville Everton Drysdale

Neville Everton Drysdale 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).

  • Polyesters comprising fluorovinylether functionalized aromatic moieties
    Patent number: 8304513
    Abstract: Disclosed are polyesters, particularly poly(trimethylene terephthalate), comprising fluorovinylether functionalized aromatic repeat units, and methods to make the polyester polymers. The polymers are useful for imparting soil resistance to polyesters, particularly in the form of fibers, fabrics, and carpets.
    Type: Grant
    Filed: September 1, 2010
    Date of Patent: November 6, 2012
    Assignee: E I du Pont de Nemours and Company
    Inventors: Neville Everton Drysdale, Surbhi Mahajan, Kenneth Gene Moloy, Fredrik Nederberg, Joel M. Pollino, Joachim C. Ritter
  • Fluorinated 4-oxo-chroman-7-carboxylates
    Patent number: 8293928
    Abstract: The present invention is directed to compositions comprising fluorinated 4-oxo-chroman-carboxylates, particularly fluorinated 4-oxo-chroman-7-carboxylate, and a process for making the same. The compounds are useful as intermediates in the production of agricultural chemicals, and also as chain terminators in condensation polymerization reactions, particularly when it is desired to provide a polymer having a relatively low surface energy.
    Type: Grant
    Filed: September 1, 2010
    Date of Patent: October 23, 2012
    Assignee: E I du Pont de Nemours and Company
    Inventor: Neville Everton Drysdale
  • Process to make poly(trimethylene carbonate) glycol
    Patent number: 8252885
    Abstract: This invention relates to the production of poly(trimethylene carbonate) glycol via the polymerization of trimethylene carbonate employing one or more acidic ion exchange resin catalysts in the presence of a solvent. The products formed are substantially free of these catalysts.
    Type: Grant
    Filed: November 25, 2008
    Date of Patent: August 28, 2012
    Assignee: E I du Pont de Nemours and Company
    Inventors: Robert DiCosimo, Neville Everton Drysdale, Hari Babu Sunkara
  • Shaped articles fabricated from polyamides comprising fluoroether functionalized aromatic moieties
    Patent number: 8247519
    Abstract: The invention is directed to shaped articles fabricated from polyamides comprising fluoroether functionalized aromatic moieties. Particular polyamides include nylon 6, 6 and nylon 6 copolyamides that comprise fluoroether functionalized aromatic amide repeat units. The shaped articles hereof are characterized by reduced surface tension and are useful for imparting soil resistant films, molded parts, fibers, fabrics, and carpets.
    Type: Grant
    Filed: June 22, 2011
    Date of Patent: August 21, 2012
    Assignee: E I du Pont de Nemours and Company
    Inventors: Neville Everton Drysdale, David Neil Marks, Fredrik Nederberg
  • Hydrotalcite catalyzed polymerization of trimethylene carbonate
    Patent number: 8188205
    Abstract: The present invention relates to the use of hydrotalcites as catalysts for the polymerization of unsubstituted or substituted trimethylene carbonate.
    Type: Grant
    Filed: November 25, 2008
    Date of Patent: May 29, 2012
    Assignee: E I du Pont de Nemours and Company
    Inventors: David Richard Corbin, Robert DiCosimo, Neville Everton Drysdale, Hari Babu Sunkara
  • POLYESTERS COMPRISING FLUOROVINYLETHER FUNCTIONALIZED AROMATIC MOIETIES
    Publication number: 20110218317
    Abstract: Disclosed are polyesters, particularly poly(trimethylene terephthalate), comprising fluorovinylether functionalized aromatic repeat units, and methods to make the polyester polymers. The polymers are useful for imparting soil resistance to polyesters, particularly in the form of fibers, fabrics, and carpets.
    Type: Application
    Filed: September 1, 2010
    Publication date: September 8, 2011
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Neville Everton Drysdale, Surbhi Mahajan, Kenneth Gene Moloy, Fredrik Nederberg, Joel M. Pollino, Joachim C. Ritter
  • POLYARAMID FILMS COMPRISING FLUOROVINYLETHER FUNCTIONALIZED AROMATIC MOIETIES
    Publication number: 20110218319
    Abstract: Provided are polyaramid polymers and films made from the polymers, comprising repeat units of the condensation product of a fluorovinylether functionalized aromatic diacid chloride and an aromatic diamine, and methods to make the films.
    Type: Application
    Filed: September 1, 2010
    Publication date: September 8, 2011
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Neville Everton Drysdale, Kenneth Gene Moloy, Fredrik Nederberg, Joel M. Pollino, Joachim C. Ritter
  • POLYESTER FILMS WITH IMPROVED OIL REPELLENCY
    Publication number: 20110218316
    Abstract: Provided are films made from copolyesters having improved oil repellency as compared to conventional copolyesters. The copolyesters are derived from certain perfluorinated monomers.
    Type: Application
    Filed: September 1, 2010
    Publication date: September 8, 2011
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Neville Everton Drysdale, Surbhi Mahajan, Kenneth Gene Moloy, Fredrik Nederberg, Joel M. Pollino, Joachim C. Ritter
  • FLUOROVINYL ETHER FUNCTIONALIZED AROMATIC DIESTERS, DERIVATIVES THEREOF, AND PROCESS FOR THE PREPARATION THEREOF
    Publication number: 20110218353
    Abstract: Disclosed are fluorovinyl ether functionalized aromatic diesters and derivatives thereof. The compounds disclosed have utility as functionalized monomers and comonomers in polyesters, polyamides, and the like. It has been found that incorporation of the monomers into polymers provides improved soil resistance to shaped articles produced from the polymers.
    Type: Application
    Filed: September 1, 2010
    Publication date: September 8, 2011
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Neville Everton Drysdale, Surbhi Mahajan, Kenneth Gene Moloy, Fredrik Nederberg, Joel M. Pollino, Joachim C. Ritter
  • FLUORINATED 4-OXO-CHROMAN-7-CARBOXYLATES
    Publication number: 20110213166
    Abstract: The present invention is directed to compositions comprising fluorinated 4-oxo-chroman-carboxylates, particularly fluorinated 4-oxo-chroman-7-carboxylate, and a process for making the same. The compounds are useful as intermediates in the production of agricultural chemicals, and also as chain terminators in condensation polymerization reactions, particularly when it is desired to provide a polymer having a relatively low surface energy.
    Type: Application
    Filed: September 1, 2010
    Publication date: September 1, 2011
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventor: Neville Everton Drysdale
  • POLYARAMID COMPRISING FLUOROVINYLETHER FUNCTIONALIZED AROMATIC MOIETIES
    Publication number: 20110213118
    Abstract: The invention is directed to polyaramid polymers, comprising repeat units of the condensation product of a fluorovinylether functionalized aromatic diacid chloride and an aromatic diamine, and methods to make said polyaramid polymers. The polymers of this invention are useful as high strength fibers or solution cast films with reduced surface susceptibility to oil.
    Type: Application
    Filed: September 1, 2010
    Publication date: September 1, 2011
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Neville Everton Drysdale, Kenneth Gene Moloy, Fredrik Nederberg, Joel M. Pollino, Joachim C. Ritter
  • PROCESS FOR THE SYNTHESIS OF FLUORINATED ETHERS OF AROMATIC ACIDS
    Publication number: 20110060116
    Abstract: New fluorinated ethers of aromatic acids and diesters are disclosed. These compositions can be applied to, e.g., fibers, yarns, carpets, garments, films, molded parts, paper and cardboard, stone, and tile to impart soil, water and oil resistance. By incorporating the fluorinated ethers of aromatic acids, or diesters thereof, into polymer backbones, more lasting soil, water and oil resistance, as well as improved flame retardance, can be achieved.
    Type: Application
    Filed: September 2, 2010
    Publication date: March 10, 2011
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Neville Everton Drysdale, Surbhi Mahajan Du, Kenneth Gene Moloy, Joel M. Pollino, Joachim C. Ritter
  • Polymerization of acrylic polymers in reactive diluents
    Patent number: 7888440
    Abstract: The present process is directed to preparation of addition polymers in diluents that are subsequently reactive in coatings during cure, instead of in traditional hydrocarbon solvents. The polymers so prepared can be used as the main film-forming polymer in high solids coating compositions, especially those useful for finishing automobiles and truck exteriors.
    Type: Grant
    Filed: December 7, 2007
    Date of Patent: February 15, 2011
    Assignee: E. I. du Pont de Nemours & Co.
    Inventors: Jeffery W. Johnson, Robert R. Matheson, Donald A. White, Neville Everton Drysdale, Patrick Henry Corcoran, Laura Ann Lewin
  • Tetrahydro-1,8-dioxa-4a-aza-naphthalenes in coating applications
    Patent number: 7812173
    Abstract: The present disclosure relates to the preparation and use of tetrahydro-1,8-dioxa-4a-aza-naphthalenes in low VOC coatings.
    Type: Grant
    Filed: August 17, 2006
    Date of Patent: October 12, 2010
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Neville Everton Drysdale, Laura Ann Lewin
  • Processes for the polymerization of trimethylene carbonate to poly(trimethylene glycol carbonate trimethylene glycol ether) diol
    Patent number: 7790833
    Abstract: This invention relates to solventless processes for the polymerization of an unsubstituted or substituted trimethylene carbonate to an unsubstituted or substituted poly(1,3-propanediol carbonate 1,3-propanediol ether)diol, using one or more solid acid catalysts.
    Type: Grant
    Filed: November 25, 2008
    Date of Patent: September 7, 2010
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Robert DiCosimo, Neville Everton Drysdale, Hari Babu Sunkara
  • Copolymers comprising trimethylene carbonate and poly(trimethylene ether) glycols
    Patent number: 7790834
    Abstract: The present invention relates to novel copolymers comprising unsubstituted or R-substituted trimethylene carbonate and poly(trimethylene ether)glycol. The copolymers find use in areas including personal care, coatings and lubricants.
    Type: Grant
    Filed: November 25, 2008
    Date of Patent: September 7, 2010
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Robert DiCosimo, Neville Everton Drysdale, Hari Babu Sunkara
  • Dual cure coating compositions
    Patent number: 7608645
    Abstract: The present invention relates to the use of (meth)acrylate functionalized amide acetals as reactive components with crosslinking agents and UV radiation to give new coatings compositions.
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: October 27, 2009
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Neville Everton Drysdale, Laura Ann Lewin, Robert John Barsotti, Gary A. Johansson
  • COPOLYMERS COMPRISING TRIMETHYLENE CARBONATE AND POLY(TRIMETHYLENE ETHER) GLYCOLS
    Publication number: 20090143555
    Abstract: The present invention relates to novel copolymers comprising unsubstituted or R-substituted trimethylene carbonate and poly(trimethylene ether)glycol. The copolymers find use in areas including personal care, coatings and lubricants.
    Type: Application
    Filed: November 25, 2008
    Publication date: June 4, 2009
    Applicant: E. I. DuPont de Nemours and Company
    Inventors: Robert DiCosimo, Neville Everton Drysdale, Hari Babu Sunkara
  • HYDROTALCITE CATALYZED POLYMERIZATION OF TRIMETHYLENE CARBONATE
    Publication number: 20090143563
    Abstract: The present invention relates to the use of hydrotalcites as catalysts for the polymerization of unsubstituted or substituted trimethylene carbonate.
    Type: Application
    Filed: November 25, 2008
    Publication date: June 4, 2009
    Applicant: E. I. DuPont de Nemours and Company
    Inventors: David Richard Corbin, Robert Dicosimo, Neville Everton Drysdale, Hari Babu Sunkara
  • COMPOSITIONS OF AND PROCESSES FOR PRODUCING POLY(TRIMETHYLENE GLYCOL CARBONATE TRIMETHYLENE GLYCOL ETHER) DIOL
    Publication number: 20090143624
    Abstract: This invention relates to compositions of and processes for producing an unsubstituted or R-substituted poly(trimethylene glycol carbonate trimethylene glycol ether)diol. The processes use acidic ion exchange resins and include solvents.
    Type: Application
    Filed: November 25, 2008
    Publication date: June 4, 2009
    Applicant: E. I. DuPont de Nemours and Company
    Inventors: Robert DiCosimo, Neville Everton Drysdale, Hari Babu Sunkara