Patents by Inventor Donald Douglas May
Donald Douglas May 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: 10822746Abstract: Disclosed herein is a wallpaper, including: (a) a paper substrate including a paper layer and an ink decorative layer attached to an upper surface of the paper layer that faces away from the wall during use; (b) a fluorine-containing coating attached to a surface of the ink decorative layer; and (c) a supporting layer attached to a lower surface of the paper substrate, in which the supporting layer comprises 25 to 45 wt % of polyacrylate, 25 to 40 wt % of a styrene-acrylic acid copolymer and 10 to 50 wt % of inorganic particles based on the total weight of the supporting layer, wherein the inorganic particles are selected from the group consisting of silicon dioxide, titanium dioxide, calcium carbonate, kaolin clay, diatomite and talc powder, and a combination of two or more thereof.Type: GrantFiled: April 26, 2017Date of Patent: November 3, 2020Assignee: DUPONT ELECTRONICS, INC.Inventors: Zhang Honggui, Donald Douglas May
-
Publication number: 20190106843Abstract: Disclosed herein is a wallpaper, including: (a) a paper substrate including a paper layer and an ink decorative layer attached to an upper surface of the paper layer that faces away from the wall during use; (b) a fluorine-containing coating attached to a surface of the ink decorative layer; and (c) a supporting layer attached to a lower surface of the paper substrate, in which the supporting layer comprises 25 to 45 wt % of polyacrylate, 25 to 40 wt % of a styrene-acrylic acid copolymer and 10 to 50 wt % of inorganic particles based on the total weight of the supporting layer, wherein the inorganic particles are selected from the group consisting of silicon dioxide, titanium dioxide, calcium carbonate, kaolin clay, diatomite and talc powder, and a combination of two or more thereof.Type: ApplicationFiled: April 26, 2017Publication date: April 11, 2019Inventors: Honggui Zhang, Donald Douglas May
-
Patent number: 9637657Abstract: In a first aspect, a liquid fluoropolymer coating composition includes a first fluoropolymer selected from homopolymers and copolymers of vinyl fluoride and homopolymers and copolymers of vinylidene fluoride, a second fluoropolymer including a highly fluorinated fluoropolymer having a fluorine content of at least 60 weight percent, a compatible cross-linkable adhesive polymer, a cross-linking agent and solvent. In a second aspect, a fluoropolymer coated film includes a polymeric substrate film and a fluoropolymer coating on the polymeric substrate film.Type: GrantFiled: March 24, 2015Date of Patent: May 2, 2017Assignee: E I DU PONT DE NEMOURS AND COMPANYInventors: Donald Douglas May, Brian C Auman
-
Publication number: 20160168410Abstract: In a first aspect, a film includes a fluoropolymer. The fluoropolymer includes a blend of polyvinyl fluoride and a fluoroadditive. The fluoroadditive includes a fluoropolymer having pendant trifluoromethyl groups. In a second aspect, a fluoropolymer coated film includes a polymeric substrate film and a fluoropolymer coating on the polymeric substrate film. The fluoropolymer coating includes a blend of polyvinyl fluoride and a fluoroadditive. The fluoroadditive includes a fluoropolymer having pendant trifluoromethyl groups. In a third aspect, a highly cleanable article includes a fluoropolymer. The fluoropolymer includes a blend of polyvinyl fluoride and a fluoroadditive. The fluoroadditive includes a fluoropolymer having pendant trifluoromethyl groups.Type: ApplicationFiled: December 15, 2015Publication date: June 16, 2016Inventors: MICHAEL JOSEPH BROWN, EDWIN JAMES LIGHTFOOT, DONALD DOUGLAS MAY, MOOKKAN PERIYASAMY, RONALD EARL USCHOLD
-
Publication number: 20150299498Abstract: In a first aspect, a transparent fluoropolymer coated film includes a polymeric substrate film and a fluoropolymer coating on the polymeric substrate film. The fluoropolymer coating includes fluoropolymer selected from homopolymers and copolymers of vinyl fluoride and homopolymers and copolymers of vinylidene fluoride blended with a compatible adhesive polymer and a light stabilizer. The transparent fluoropolymer coated film has a transmission of at least 75 percent in the visible range. In a second aspect, a building structure comprising a transparent fluoropolymer coated film. In a third aspect, a liquid fluoropolymer coating composition includes a fluoropolymer selected from homopolymers and copolymers of vinyl fluoride and homopolymers and copolymers of vinylidene fluoride, a light stabilizer including a combination of a UV absorber and a hindered amine light stabilizer, solvent, a compatible cross-linkable adhesive polymer and a cross-linking agent.Type: ApplicationFiled: April 1, 2015Publication date: October 22, 2015Inventors: NATHANIEL REED SCHWARTZ, Donald Douglas May
-
Publication number: 20150299497Abstract: In a first aspect, a liquid fluoropolymer coating composition includes a first fluoropolymer selected from homopolymers and copolymers of vinyl fluoride and homopolymers and copolymers of vinylidene fluoride, a second fluoropolymer including a highly fluorinated fluoropolymer having a fluorine content of at least 60 weight percent, a compatible cross-linkable adhesive polymer, a cross-linking agent and solvent. In a second aspect, a fluoropolymer coated film includes a polymeric substrate film and a fluoropolymer coating on the polymeric substrate film.Type: ApplicationFiled: March 24, 2015Publication date: October 22, 2015Inventors: DONALD DOUGLAS MAY, BRIAN C. AUMAN
-
Publication number: 20150132582Abstract: In a first aspect, a liquid fluoropolymer coating composition includes a fluoropolymer selected from the group consisting of homopolymers and copolymers of vinyl fluoride and homopolymers and copolymers of vinylidene fluoride, a pigment, a dispersing agent including a block acrylic compound or a graft acrylic compound, a viscosity reducing compound and solvent. In a second aspect, a process for forming a fluoropolymer coated film includes coating a polymeric substrate film with a liquid fluoropolymer coating composition, wherein the liquid fluoropolymer coating composition includes a fluoropolymer selected from homopolymers and copolymers of vinyl fluoride and homopolymers and copolymers of vinylidene fluoride, a pigment, a dispersing agent, a viscosity reducing compound, a mixed catalyst, solvent, a compatible cross-linkable adhesive polymer and a cross-linking agent.Type: ApplicationFiled: October 30, 2014Publication date: May 14, 2015Inventors: BRIAN C. AUMAN, Donald Douglas May
-
Publication number: 20150133589Abstract: A pigment dispersion includes a pigment, a dispersing agent, a viscosity reducing compound and solvent. The dispersing agent includes a block acrylic compound or a graft acrylic compound.Type: ApplicationFiled: October 30, 2014Publication date: May 14, 2015Inventors: Brian C. AUMAN, Donald Douglas MAY
-
Publication number: 20150034148Abstract: In a first aspect, a liquid fluoropolymer coating composition includes a fluoropolymer selected from homopolymers and copolymers of vinyl fluoride and homopolymers and copolymers of vinylidene fluoride, a mixed catalyst, solvent, a compatible cross-linkable adhesive polymer and a cross-linking agent. The mixed catalyst includes a main catalyst and a co-catalyst. The main catalyst includes an organotin compound. In a second aspect, a fluoropolymer coated film includes a polymeric substrate film and a fluoropolymer coating on the polymeric substrate film. The fluoropolymer coating includes a fluoropolymer selected from homopolymers and copolymers of vinyl fluoride and homopolymers and copolymers of vinylidene fluoride, a compatible cross-linked adhesive polymer, and a mixed catalyst. The mixed catalyst includes a main catalyst and a co-catalyst. The main catalyst includes an organotin compound.Type: ApplicationFiled: July 17, 2014Publication date: February 5, 2015Inventor: DONALD DOUGLAS MAY
-
Publication number: 20110195212Abstract: The present invention relates to novel flame retardant polycarbonate resin compositions comprising at least one aromatic polycarbonate resin, at least one anti-drip agent, and at least one salt as defined herein. The present invention also provides methods for preparing articles comprising said flame retardant composition, and articles made therefrom.Type: ApplicationFiled: April 8, 2011Publication date: August 11, 2011Applicant: E.I. DU PONT DE NEMOURS AND COMPANYInventors: Christopher P. Junk, Donald Douglas May
-
Patent number: 7947770Abstract: The present invention relates to novel flame retardant polycarbonate resin compositions comprising at least one aromatic polycarbonate resin, at least one anti-drip agent, and at least one salt as defined herein. The present invention also provides methods for preparing articles comprising said flame retardant composition, and articles made therefrom.Type: GrantFiled: February 28, 2008Date of Patent: May 24, 2011Assignee: E. I. du Pont de Nemours and CompanyInventors: Christopher P. Junk, Donald Douglas May
-
Patent number: 7888408Abstract: A treated pigment comprising: (a) an inorganic pigment; (b) an organic compound comprises a fluoroalkyl group and a hydrocarbon group and having the structure: RH-L-RF, wherein RF is a fluorochemical component containing at least one Zerewitinoff hydrogen; RH is an aliphatic group of 1-30 carbons, cycloaliphatic group of 3-30 carbons, an aromatic group of 6-30 carbons, or a group having the structure: R?—(OCH2CHR?)x?—(OCH2CH2)y?—O—, wherein R? is H or an aliphatic group of 1-20 carbons, R? is H or methyl; and x? and y? are the same or different integers ranging from 0-20 except that the sum of x? and y? is at least 1 when R? is H; and L is selected from the group CO, isocyanate, and a mixture of polyisocyanates containing at least three isocyanate groups per RH-L-RF structure. Plastic articles containing a pigment and the organic compound have improved cleanability with all the other needed properties and without the negative property of chaulking.Type: GrantFiled: March 16, 2006Date of Patent: February 15, 2011Assignee: E.I. du Pont de Nemours and CompanyInventor: Donald Douglas May
-
Publication number: 20100247862Abstract: The disclosure provides a self cleaning thermoplastic substrate surface, comprising: a thermoplastic substrate surface having secured thereto a composite comprising a thermoplastic resin powder and hydrophobically treated particle, whereby the hydrophobically treated particle is adhered to the thermoplastic resin powder.Type: ApplicationFiled: November 18, 2008Publication date: September 30, 2010Applicant: E.I. DuPont De Nemours and CompanyInventor: Donald Douglas May
-
Patent number: 7723414Abstract: An antistatic system useful for mixing with thermoplastic polymers is disclosed which comprises an inorganic oxide, typically TiO2, treated with a siloxane and an ethoxylated alkylamine. The antistatic system can be used in shaped polymer articles to improve the dust-attracting resistance of the articles.Type: GrantFiled: December 13, 2007Date of Patent: May 25, 2010Assignee: E. I. du Pont de Nemours and CompanyInventor: Donald Douglas May
-
Publication number: 20080221241Abstract: The present invention relates to novel flame retardant polycarbonate resin compositions comprising at least one aromatic polycarbonate resin, at least one anti-drip agent, and at least one salt as defined herein. The present invention also provides methods for preparing articles comprising said flame retardant composition, and articles made therefrom.Type: ApplicationFiled: February 28, 2008Publication date: September 11, 2008Applicant: E. I. DU PONT DE NEMOURS AND COMPANYInventors: Christopher P. Junk, Donald Douglas May
-
Publication number: 20080171818Abstract: A treated pigment comprising: (a) an inorganic pigment; (b) an organic compound comprises a fluoroalkyl group and a hydrocarbon group and having the structure: RH-L-RF, wherein RF is a fluorochemical component containing at least one Zerewitinoff hydrogen; RH is an aliphatic group of 1-30 carbons, cycloaliphatic group of 3-30 carbons, an aromatic group of 6-30 carbons, or a group having the structure: R?—(OCH2CHR?)x?—(OCH2CH2)y?—O—, wherein R? is H or an aliphatic group of 1-20 carbons, R? is H or methyl; and x? and y? are the same or different integers ranging from 0-20 except that the sum of x? and y? is at least 1 when R? is H; and L is selected from the group CO, isocyanate, and a mixture of polyisocyanates containing at least three isocyanate groups per RH-L-RF structure. Plastic articles containing a pigment and the organic compound have improved cleanability with all the other needed properties and without the negative property of chaulking.Type: ApplicationFiled: March 16, 2006Publication date: July 17, 2008Inventor: Donald Douglas May
-
Publication number: 20080153953Abstract: An antistatic system useful for mixing with thermoplastic polymers is disclosed which comprises an inorganic oxide, typically TiO2, treated with a siloxane and an ethoxylated alkylamine. The antistatic system can be used in shaped polymer articles to improve the dust-attracting resistance of the articles.Type: ApplicationFiled: December 13, 2007Publication date: June 26, 2008Inventor: Donald Douglas May
-
Publication number: 20080145552Abstract: Coating compositions comprise a coating base, a polyoxyalkylene siloxane additive and a fluorochemical wherein the polyoxyalkylene siloxane is of Formulae 1A, 1B, 1C, or 2: (R2)3SiO[Si(R2)2O]y[Si(R2)(R1)O]x[Si(R2)2O]zSi(R2)3Formula 1A (R2)3SiO[Si(R2)2O]x[Si(R2)2R1Formula 1B R1(R2)2SiO[Si(R2)2O]x[Si(R2)2O]Si(R2)2R1Formula 1C wherein each R2 is independently H, alkyl, or aryl; each R1 is a polyoxyalkylene group having the formula 3 as follows: —CnR4pH2n?pQCmR5pH2m?pOZR3Formula 3 wherein each R4 and R5 is independently H, alkyl, or aryl; Q is CnHR4, aryl, CH2CH(OR4), CH2(CH2OR4), S, O, SO, SO2, SO2NR4, OC(O), OC(NR4), NHC(X)NH, or OC(X)NH or triazole; Z is [C2H4O]a and [C3H6O]b in block or random order; X is O or S; m and n are each independently an integer of 2 to 8; a is an integer of 0 to about 30; b is an integer of 0 to about 20; provided that a+b is from 1 to about 50; each R3 is independently H, acyl, CH3, or a linear or branched alkyl or aryl group having 1 to about 20 carbon atType: ApplicationFiled: September 5, 2007Publication date: June 19, 2008Inventors: Mia Genevieve Berrettini, Axel Hans-Joachim Herzog, John Gavenonis, Donald Douglas May, Xianjun Meng
-
Publication number: 20080119598Abstract: An antistatic agent useful for mixing with thermoplastic polymers is disclosed which comprises a reaction product of an inorganic pigment, more typically TiO2; optionally at least one silane; and a siloxane compound.Type: ApplicationFiled: January 13, 2006Publication date: May 22, 2008Applicant: E.I. DU PONT DE NEMOURS AND COMPANYInventor: Donald Douglas May
-
Patent number: 7338995Abstract: Pigmented polymer compositions and processes for preparing melt-processible polymer compositions contain a melt-processible polymer, surface treated organic pigment, typically titanium dioxide, and a polymer processing aid are described. The pigment is surface treated by contact with a silicon-containing compound, such as octyltriethoxysilane followed by contact with an organic compound such as isostearic acid or ethoxylated silicone. The pigmented polymer composition containing a polymer processing aid facilitates production of shaped articles with low melt fracture.Type: GrantFiled: March 6, 2004Date of Patent: March 4, 2008Assignee: E.I. du Pont de Nemours and CompanyInventors: Donald Douglas May, Bernd Zimmermann