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).

  • Aryl compounds modified with perfluorovinyl ethers
    Patent number: 9365476
    Abstract: A compound of formula (I) wherein Rf is CF3, —C2F5, —CF2CFXCF3; X is —F, or —OC3F7; Y is —H, —Cl, or —Br; R1 is —(CH2)q—, —(OCH2CH2)t—, or —(CH2)q(OCH2CH2)t—; Rf1 is —OCF2CFY1—O—Rf2; Rf2 is —CF3, —C2F5, —CF2CFX1CF3; X1 is —F, or —OC3F7; Y1 is —H, —Cl, or —Br; q is 0 to 10; t is 1 to 10; a is 1 to 5; and b is 1 to 5.
    Type: Grant
    Filed: October 31, 2013
    Date of Patent: June 14, 2016
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventor: Neville Everton Drysdale
  • FLUORINATED ARYL EPOXIDE COMPOUNDS
    Publication number: 20160039972
    Abstract: A fluorinated aromatic epoxy compound having a fluorinated ether tail and a pendant epoxy functional group. These compounds are particularly useful as starting materials for producing various water and oil repellents and soil resists.
    Type: Application
    Filed: October 20, 2015
    Publication date: February 11, 2016
    Inventors: NEVILLE EVERTON DRYSDALE, Garret D. Figuly
  • PERFLUOROPOLYVINYL MODIFIED ARYL INTERMEDIATES AND MONOMERS
    Publication number: 20150361030
    Abstract: A compound of formula (I) wherein Rf is —CF3, —C2F5, or —CF2CFXCF3; X is —F, or —OC3F7; Y is —H, —Cl, or —Br; R is —OH, —(CH2)nOH, —(OCH2CH2)mOH, —(CH2)n(OCH2CH2)mOH, —O—C(O)—R1, —(CH2)nO—C(O)—R1, —(OCH2CH2)mOC(O)—R1, —C(O)NHw(CH2CH2OH)2-w, —C?N, —C?CH, or —C(O)R2; n is 1 to 10; m is 1 to 10; R1 is C1 to C10 alkyl; R2 is —H, C1 to C10 alkyl, —Cl, or —OCH2CH2OH; a is 1 to 5; b is 1 to 5; and w is 0, 1 or 2.
    Type: Application
    Filed: August 25, 2015
    Publication date: December 17, 2015
    Inventor: NEVILLE EVERTON DRYSDALE
  • Fluorinated aryl epoxide compounds
    Patent number: 9193702
    Abstract: A fluorinated aromatic epoxy compound having a fluorinated ether tail and a pendant epoxy functional group. These compounds are particularly useful as starting materials for producing various water and oil repellents and soil resists.
    Type: Grant
    Filed: October 31, 2013
    Date of Patent: November 24, 2015
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Neville Everton Drysdale, Garret D Figuly
  • Perfluoropolyvinyl modified aryl intermediates and monomers
    Patent number: 9145356
    Abstract: A compound of formula (I) wherein Rf is —CF3, —C2F5, or —CF2CFXCF3; X is —F, or —OC3F7; Y is —H, —Cl, or —Br; R is —OH, —(OCH2CH2)mOH, —(CH2)n(OCH2CH2)mOH, —O—C(O)—R1, —(CH2)nO—C(O)R1, —(OCH2CH2)mOC(O)—R1, —C(O)NHw(CH2CH2OH)2-w, —C?N, —C?CH; n is 1 to 10; m is 1 to 10; R1 is C1 to C10 alkyl; a is 1 to 5; b is 1 to 5; and w is 0, 1 or 2.
    Type: Grant
    Filed: October 31, 2013
    Date of Patent: September 29, 2015
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventor: Neville Everton Drysdale
  • FLUORINATED ARYL EPOXIDE COMPOUNDS
    Publication number: 20150119547
    Abstract: A fluorinated aromatic epoxy compound having a fluorinated ether tail and a pendant epoxy functional group. These compounds are particularly useful as starting materials for producing various water and oil repellents and soil resists.
    Type: Application
    Filed: October 31, 2013
    Publication date: April 30, 2015
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: NEVILLE EVERTON DRYSDALE, Garret D. Figuly
  • Carpets prepared from yarns comprising a fluorinated polyester blend
    Patent number: 9017788
    Abstract: Carpets are prepared from yarns comprising fibers comprising a fluorinated polyester blend prepared by melt blending a fluorovinyl ether functionalized polyester with a non-fluorinated polyester. The fluoroether functionalized polyester can be a homopolymer or a copolymer. The carpets exhibit durable soil, oil, and water repellency.
    Type: Grant
    Filed: December 28, 2011
    Date of Patent: April 28, 2015
    Assignee: E I du Pont de Nemours and Company
    Inventors: Neville Everton Drysdale, Fredrik Nederberg
  • Perfluoropolyvinyl modified aryl intermediates/monomers
    Patent number: 8962879
    Abstract: A compound of formula (I) wherein Rf is —CF3, —C2F5, —CF2CFXCF3; X to —F, or —OC3F7; Y is —H, —Cl, or —Br; R is —O—C(O)—R1, —(CH2)nO—C(O)—R1, —(OCH2CH2)mOC(O)—R1; —(CH2)n(OCH2CH2)mO—R1; n is 1 to 10; m is 1 to 10; R1 is —C(R3)?CH2; R3 is H or CH3; a is 1 to 5; and b is 1 to 5.
    Type: Grant
    Filed: October 31, 2013
    Date of Patent: February 24, 2015
    Assignee: E I du Pont de Nemours and Company
    Inventor: Neville Everton Drysdale
  • Fabric prepared from fluorinated polyester blend yarns
    Patent number: 8889256
    Abstract: Woven, knit, and non-woven fabrics, and garments and other textile goods fabricated therefrom, are prepared from yarns comprising fibers comprising a fluorinated polyester blend prepared by melt blending a fluorovinyl ether functionalized polyester with a non-fluorinated polyester. The fluoroether functionalized polyester can be a homopolymer or a copolymer. The goods so produced exhibit durable soil, oil, and water repellency.
    Type: Grant
    Filed: December 28, 2011
    Date of Patent: November 18, 2014
    Assignee: E I du Pont de Nemours and Company
    Inventors: Neville Everton Drysdale, Dennis Gerard Madeleine, Fredrik Nederberg
  • Fluorinated block copolyesters
    Patent number: 8791212
    Abstract: Disclosed are block copolyesters comprising blocks of fluoroether functionalized aromatic polyester and blocks of unmodified aromatic polyester, the block copolyesters having a blockiness index, B, in the range of 0.25 to 1.0. The block copolymers incorporated into blends with unmodified aromatic polyester impart oil and soil resistance to shaped articles prepared from the blends.
    Type: Grant
    Filed: November 8, 2011
    Date of Patent: July 29, 2014
    Assignee: E I du Pont de Nemours and Company
    Inventors: Neville Everton Drysdale, Elizabeth Forrester McCord, Fredrik Nederberg
  • Polymer blend comprising fluorinated block copolyester
    Patent number: 8785568
    Abstract: Disclosed are polymer blends prepared by melt blending a fluorinated block copolyester with a non-fluorinated polyester wherein the fluorinated block copolyester comprises blocks of fluoroether modified aromatic polyester and blocks of unmodified polyester. Suitable block copolyesters have a blockiness index, B, in the range of 0.25 to 1.0. Shaped articles prepared from the blends exhibit oil and soil resistance with high fluorine efficiency.
    Type: Grant
    Filed: November 8, 2011
    Date of Patent: July 22, 2014
    Assignee: E I du Pont de Nemours and Company
    Inventors: Neville Everton Drysdale, Elizabeth Forrester McCord, Fredrik Nederberg
  • Process for the synthesis of fluorinated ethers of aromatic acids
    Patent number: 8779186
    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: Grant
    Filed: September 2, 2010
    Date of Patent: July 15, 2014
    Assignee: E I du Pont de Nemours and Company
    Inventors: Neville Everton Drysdale, Kenneth Gene Moloy, Joachim C. Ritter, Joel M. Pollino, Surbhi Mahajan Du
  • Fluorinated polyester blend
    Patent number: 8772420
    Abstract: A fluorinated polyester blend is prepared by melt blending a fluorovinyl ether functionalized polyester with a non-fluorinated polyester. The fluoroether functionalized polyester can be a homopolymer or a copolymer. The blend is useful for preparing fibers, yarns, fabrics, garments, carpets, and other shaped articles. The shaped articles exhibit durable soil, oil, and water repellency.
    Type: Grant
    Filed: December 28, 2011
    Date of Patent: July 8, 2014
    Assignee: E I du Pont de Nemours and Company
    Inventors: Neville Everton Drysdale, Fredrik Nederberg
  • CROSSLINKED COPOLYMERS COMPRISING FLUOROVINYLETHER FUNCTIONALIZED AROMATIC MOIETIES
    Publication number: 20140134420
    Abstract: Disclosed are crosslinked copolymers comprising a copolymer with crosslinks between olefinically unsaturated positions in the backbone of one type of repeat unit and a second repeat unit that is a fluorovinylether functionalized aromatic repeat unit. The crosslinked copolymers are useful for imparting improved soil, water, and oil resistance to materials including fibers, fabrics, carpets, films, plaques, and shaped articles.
    Type: Application
    Filed: November 15, 2012
    Publication date: May 15, 2014
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: OWEN C. COMPTON, Neville Everton Drysdale, Fredrik Nederberg, Soonjoo Son, Judith Johanna Van Gorp
  • CROSSLINKABLE COPOLYMERS COMPRISING FLUOROVINYLETHER FUNCTIONALIZED AROMATIC MOIETIES
    Publication number: 20140134388
    Abstract: Disclosed are copolymers comprising a backbone with olefinic unsaturation and fluorovinylether functionalized aromatic repeat units, and methods to make the copolymers. The copolymers are useful for imparting improved soil, water, and oil resistance to materials including fibers, fabrics, carpets, films, plaques, and shaped articles. The copolymers can be crosslinked and used to form shaped articles with the improved properties.
    Type: Application
    Filed: November 15, 2012
    Publication date: May 15, 2014
    Applicant: E I Du Pont De Nemours and Company
    Inventors: Owen C. Compton, Neville Everton Drysdale, Fredrik Nederberg, Sonjoo Son, Judith Johanna Van Gorp
  • ARTICLES MADE FROM CROSSLINKED COPOLYMERS COMPRISING FLUOROVINYLETHER FUNCTIONALIZED AROMATIC MOIETIES
    Publication number: 20140135456
    Abstract: Disclosed are articles made from crosslinked copolymers comprising crosslinks between olefinically unsaturated positions in the backbone of one type of repeat unit and a second repeat unit that is a fluorovinylether functionalized aromatic repeat unit. The articles have enhanced surface fluorine that imparts improved soil, water, and oil resistance to the articles.
    Type: Application
    Filed: November 15, 2012
    Publication date: May 15, 2014
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: OWEN C. COMPTON, Neville Everton Drysdale, Fredrik Nederberg, Soonjoo Son, Judith Johanna Van Gorp
  • PERFLUOROPOLYVINYL MODIFIED ARYL INTERMEDIATES AND MONOMERS
    Publication number: 20140135518
    Abstract: A compound of formula (I) wherein Rf is —CF3, —C2F5, or —CF2CFXCF3; X is —F, or —OC3F7; Y is —H, —Cl, or —Br; R is —OH, —(CH2)nOH, —(OCH2CH2)mOH, —(CH2)n(OCH2CH2)mOH, —O—C(O)—R1, —(CH2)nO—C(O)R1, —(OCH2CH2)mOC(O)—R1, —C(O)NHw(CH2CH2OH)2-w, —C?N, —C?CH, or —C(O)R2; n is 1 to 10; m is 1 to 10; R1 is C1 to C10 alkyl; R2 is —H, C1 to C10 alkyl, —Cl, or —OCH2CH2OH; a is 1 to 5; b is 1 to 5; and w is 0, 1 or 2.
    Type: Application
    Filed: October 31, 2013
    Publication date: May 15, 2014
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventor: Neville Everton Drysdale
  • PERFLUOROPOLYVINYL MODIFIED ARYL INTERMEDIATES/MONOMERS
    Publication number: 20140135524
    Abstract: A compound of formula (I) wherein Rf is —CF3, —C2F5, —CFXCF3; X to —F, or —OC3F7; Y is —H, —Cl, or —Br; R is —O—C(O)—R1, —(CH2)nO—C(O)—R1, —(OCH2CH2)mOC(O)—R1; —(CH2)n(OCH2CH2)mO—R1; n is 1 to 10; m is 1 to 10; R1 is —C(R3)?CH2; R3 is H or CH3; a is 1 to 5; and b is 1 to 5.
    Type: Application
    Filed: October 31, 2013
    Publication date: May 15, 2014
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventor: NEVILLE EVERTON DRYSDALE
  • PERFLUOROPOLYVINYL MODIFIED ARYL MONOMERS
    Publication number: 20140135535
    Abstract: A compound of formula (I) wherein Rf is CF3, —C2F5, —CF2CFXCF3; X is —F, or —OC3F7; Y is —H, —Cl, or —Br; R1 is —(CH2)q—, —(OCH2CH2)t—, or —(CH2)q(OCH2CH2)t—; Rf1 is —OCF2CFY1—O—Rf2; Rf2 is —CF3, —C2F5, —CF2CFX1CF3; X1 is —F, or —OC3F7; Y1 is —H, —Cl, or —Br; q is 0 to 10; t is 1 to 10; a is 1 to 5; and b is 1 to 5.
    Type: Application
    Filed: October 31, 2013
    Publication date: May 15, 2014
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventor: NEVILLE EVERTON DRYSDALE
  • Preparation of homopolymer and copolymers of (phosphonyl)aromatic diesters and acids
    Patent number: 8722846
    Abstract: The composition of a homopolymer of (phosphonyl) aromatic diester compound using a catalyst and a glycol is provided. Further, the composition of a copolymer of the (phosphonyl) aromatic diester compound using a catalyst, a glycol and a second diester is provided. These polymers find application as flame retardants during synthesis of various polymeric materials.
    Type: Grant
    Filed: December 8, 2011
    Date of Patent: May 13, 2014
    Assignee: E I du Pont de Nemours and Company
    Inventors: Neville Everton Drysdale, Fredrik Nederberg