Patents by Inventor David M. Deans
David M. Deans 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: 10696771Abstract: Provided is a method for preparing a latex composition, comprising providing an ethylene copolymer comprising copolymerized units of ethylene and copolymerized units of at least one polar comonomer; dissolving the ethylene copolymer with one or more latex monomers to prepare a solution; mixing the solution with water; optionally adding a surfactant or protectant colloid to form an aqueous emulsion; and polymerizing the latex monomer in the emulsion to form a latex composition comprising the ethylene copolymer and a latex polymer. Further provided are the emulsion polymerization product and the mini-emulsion polymerization product of at least one ethylene copolymer substantially dissolved in at least one latex monomer, such as an acrylic, styrene or vinyl monomer. Finally, formulated products comprising or produced from the emulsion or mini-emulsion polymerization product and articles comprising or produced from the formulated products are provided.Type: GrantFiled: March 28, 2016Date of Patent: June 30, 2020Assignee: Performance Materials NA, Inc.Inventors: David D Zhang, David M Dean, Elizabeth R Griffin, Richard Allen Hayes, Donna Lynn Visioli
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Publication number: 20190322828Abstract: The present invention relates to the field of foamable compositions having an ethylene-based co-polymer containing a carbon monoxide co-monomer.Type: ApplicationFiled: November 1, 2017Publication date: October 24, 2019Applicant: E. I. DU PONT DE NEMOURS AND COMPANYInventors: John P. Bishop, David M. Dean, Erdogan Kiran
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Publication number: 20160280905Abstract: Provided is a method for preparing a latex composition, comprising providing an ethylene copolymer comprising copolymerized units of ethylene and copolymerized units of at least one polar comonomer; dissolving the ethylene copolymer with one or more latex monomers to prepare a solution; mixing the solution with water; optionally adding a surfactant or protectant colloid to form an aqueous emulsion; and polymerizing the latex monomer in the emulsion to form a latex composition comprising the ethylene copolymer and a latex polymer. Further provided are the emulsion polymerization product and the mini-emulsion polymerization product of at least one ethylene copolymer substantially dissolved in at least one latex monomer, such as an acrylic, styrene or vinyl monomer. Finally, formulated products comprising or produced from the emulsion or mini-emulsion polymerization product and articles comprising or produced from the formulated products are provided.Type: ApplicationFiled: March 28, 2016Publication date: September 29, 2016Inventors: DAVID D. ZHANG, DAVID M. DEAN, ELIZABETH R. GRIFFIN, RICHARD ALLEN HAYES, DONNA LYNN VISIOLI
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Publication number: 20160076727Abstract: A lighting device comprising a light emitting diode and a cover comprising an ionomer composition that has improved optical properties. The ionomer composition comprises an ionomer that is produced by partially neutralizing a precursor acid copolymer that has a melt index of about 20 to about 400 g/10 min. The precursor acid copolymer comprises copolymerized units of an ?-olefin having 2 to 10 carbons and, based on the total weight of the precursor acid copolymer, about 12 to about 30 weight % of copolymerized units of an ?,?-ethylenically unsaturated carboxylic acid having 3 to 8 carbons.Type: ApplicationFiled: September 17, 2015Publication date: March 17, 2016Inventors: STEVEN C. PESEK, Shannon D. Meerscheidt, W. Alexander Shaffer, David M. Dean, Sebastien Tindilliere, George Wyatt Prejean, William J. Glick, Charles Anthony Smith, Karlheinz Hausmann, Loic Pierre Rolland
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Publication number: 20150357494Abstract: A gas permeation barrier structure comprises a rigid or flexible substrate, an oxide or nitride layer deposited thereon by atomic layer deposition (ALD), and a polymeric clear coat. The presence of the polymeric clear coat permits the barrier structure to maintain resistance to permeation of gases including oxygen and water vapor longer than would a structure in which the ALD layer is directly exposed to atmosphere.Type: ApplicationFiled: January 30, 2014Publication date: December 10, 2015Inventors: David M. Dean, Carl Brent Douglas, Nicholas J. Glassmaker
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Patent number: 8455574Abstract: The present invention is a composite composition comprising cellulosic material in a polymeric matrix comprising a thermoplastic polymer, and at least one compatibilizing copolymer prepared from an olefin and a functional comonomer, and articles prepared from such composites. The composition of the present invention can be useful as a synthetic wood.Type: GrantFiled: February 16, 2005Date of Patent: June 4, 2013Assignee: E I du Pont de Nemours and CompanyInventor: David M. Dean
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Process for recycling polyolefin blend composition using an ethylene copolymer compatibilizing agent
Patent number: 8431650Abstract: A process is provided for preparing polymer composites from compositions comprising i) a polyolefin, ii) a polymer selected from the group consisting of polymers having hydroxyl groups and polymers having amino groups and iii) a polar ethylene copolymer having copolymerized units selected from the group consisting of C4-C8 unsaturated anhydrides, monoesters of C4-C8 unsaturated acids having at least two carboxylic acid groups, diesters of C4-C8 unsaturated acids having at least two carboxylic acid groups and mixtures thereof. The process is suitable for use with recycle streams that contain polymeric materials that are laminates or composites of dissimilar polymers.Type: GrantFiled: February 18, 2010Date of Patent: April 30, 2013Assignee: E I du Pont de Nemours and CompanyInventor: David M. Dean -
Patent number: 8277139Abstract: A hand-held cosmetic powder applicator brush apparatus for applying cosmetic powders such as facial powders and other powders to a user. The brush apparatus comprises a housing having a chamber for holding a powder to be dispensed and a valve mechanism for selectively opening and closing the chamber to a brush mounted on the housing so that powder in the housing may be dispensed to the bristles of the brush. The valve is operable by rotating an upper housing section such as a sleeve on the housing in a first direction to cause such opening. When the brush is not used, the upper housing section is rotated in the opposite direction to cause the valve mechanism to close. There is also a shield which extends around a portion of the brush to engage and protect the bristles when an outer cap is placed over the brush.Type: GrantFiled: July 20, 2010Date of Patent: October 2, 2012Assignee: David M. Deans and Jerilyne T. Deans Co-Trustees for the David and Jerilyne Deans Family TrustInventors: David M. Deans, Jacky L. Gunter, Jacquelyn I. Medina
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Publication number: 20120067924Abstract: Method and apparatus for dispensing a fluid using a dispensing container employing an airless pump, which may employ abstract or non-cylindrical shapes. The airless pump uses a chamber enclosing a fluid with a piston comprising a surface of the chamber. The chamber has an interior volume with a substantially uniform cross section along a height of the chamber, to which the piston is conformed allowing the piston to transverse the height of the chamber. The gaps between the piston and the interior of the chamber are sealed with a multi-lobe ring seal.Type: ApplicationFiled: September 21, 2010Publication date: March 22, 2012Inventor: David M. Deans
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Process for recycling polyolefin blend composition using an ethylene copolymer compatibilizing agent
Patent number: 7875681Abstract: A process is provided for preparing polymer composites from compositions comprising i) a polyolefin, ii) a polymer selected from the group consisting of polymers having hydroxyl groups and polymers having amino groups and iii) a polar ethylene copolymer having copolymerized units selected from the group consisting of C4-C8 unsaturated anhydrides, monoesters of C4-C8 unsaturated acids having at least two carboxylic acid groups, diesters of C4-C8 unsaturated acids having at least two carboxylic acid groups and mixtures thereof. The process is suitable for use with recycle streams that contain polymeric materials that are laminates or composites of dissimilar polymers.Type: GrantFiled: February 18, 2010Date of Patent: January 25, 2011Assignee: E. I. du Pont de Nemours and CompanyInventor: David M. Dean -
Patent number: 7775737Abstract: A hand-held cosmetic powder applicator brush apparatus for applying cosmetic powders such as facial powders and other powders to a user. The brush apparatus comprises a housing having a chamber for holding a powder to be dispensed and a valve mechanism for selectively opening and closing the chamber to a brush mounted on the housing so that powder in the housing may be dispensed to the bristles of the brush. The valve is operable by rotating an upper housing section such as a sleeve on the housing in a first direction to cause such opening. When the brush is not used, the upper housing section is rotated in the opposite direction to cause the valve mechanism to close. There is also a shield which extends around a portion of the brush to engage and protect the bristles when an outer cap is placed over the brush.Type: GrantFiled: October 31, 2007Date of Patent: August 17, 2010Inventors: David M. Deans, Jacky L. Gunter, Jacquelyn I. Medina
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PROCESS FOR RECYCLING POLYOLEFIN BLEND COMPOSITION USING AN ETHYLENE COPOLYMER COMPATIBILIZING AGENT
Publication number: 20100144953Abstract: A process is provided for preparing polymer composites from compositions comprising i) a polyolefin, ii) a polymer selected from the group consisting of polymers having hydroxyl groups and polymers having amino groups and iii) a polar ethylene copolymer having copolymerized units selected from the group consisting of C4-C8 unsaturated anhydrides, monoesters of C4-C8 unsaturated acids having at least two carboxylic acid groups, diesters of C4-C8 unsaturated acids having at least two carboxylic acid groups and mixtures thereof. The process is suitable for use with recycle streams that contain polymeric materials that are laminates or composites of dissimilar polymers.Type: ApplicationFiled: February 18, 2010Publication date: June 10, 2010Applicant: E. I. DU PONT DE NEMOURS AND COMPANYInventor: DAVID M. DEAN -
PROCESS FOR RECYCLING POLYOLEFIN BLEND COMPOSITION USING AN ETHYLENE COPOLYMER COMPATIBILIZING AGENT
Publication number: 20100144952Abstract: A process is provided for preparing polymer composites from compositions comprising i) a polyolefin, ii) a polymer selected from the group consisting of polymers having hydroxyl groups and polymers having amino groups and iii) a polar ethylene copolymer having copolymerized units selected from the group consisting of C4-C8 unsaturated anhydrides, monoesters of C4-C8 unsaturated acids having at least two carboxylic acid groups, diesters of C4-C8 unsaturated acids having at least two carboxylic acid groups and mixtures thereof. The process is suitable for use with recycle streams that contain polymeric materials that are laminates or composites of dissimilar polymers.Type: ApplicationFiled: February 18, 2010Publication date: June 10, 2010Applicant: E. I. DU PONT DE NEMOURS AND COMPANYInventor: DAVID M. DEAN -
Process for recycling polyolefin blend composition using an ethylene copolymer compatibilizing agent
Patent number: 7700692Abstract: A process is provided for preparing polymer composites from compositions comprising i) a polyolefin, ii) a polymer selected from the group consisting of polymers having hydroxyl groups and polymers having amino groups and iii) a polar ethylene copolymer having copolymerized units selected from the group consisting of C4-C8 unsaturated anhydrides, monoesters of C4-C8 unsaturated acids having at least two carboxylic acid groups, diesters of C4-C8 unsaturated acids having at least two carboxylic acid groups and mixtures thereof. The process is suitable for use with recycle streams that contain polymeric materials that are laminates or composites of dissimilar polymers.Type: GrantFiled: April 28, 2006Date of Patent: April 20, 2010Assignee: E.I. du Pont de Nemours and CompanyInventor: David M. Dean -
PROCESS FOR RECYCLING POLYOLEFIN BLEND COMPOSITION USING AN ETHYLENE COPOLYMER COMPATIBILIZING AGENT
Publication number: 20100069562Abstract: A process is provided for preparing polymer composites from compositions comprising i) a polyolefin, ii) a polymer selected from the group consisting of polymers having hydroxyl groups and polymers having amino groups and iii) a polar ethylene copolymer having copolymerized units selected from the group consisting of C4-C8 unsaturated anhydrides, monoesters of C4-C8 unsaturated acids having at least two carboxylic acid groups, diesters of C4-C8 unsaturated acids having at least two carboxylic acid groups and mixtures thereof. The process is suitable for use with recycle streams that contain polymeric materials that are laminates or composites of dissimilar polymers.Type: ApplicationFiled: November 20, 2009Publication date: March 18, 2010Applicant: E.I. DU PONT DE NEMOURS AND COMPANYInventor: David M. Dean -
Publication number: 20090041530Abstract: A hand-held cosmetic powder applicator brush apparatus for applying cosmetic powders such as facial powders and other powders to a user. The brush apparatus comprises a housing having a chamber for holding a powder to be dispensed and a valve mechanism for selectively opening and closing the chamber to a brush mounted on the housing so that powder in the housing may be dispensed to the bristles of the brush. The valve is operable by rotating an upper housing section such as a sleeve on the housing in a first direction to cause such opening. When the brush is not used, the upper housing section is rotated in the opposite direction to cause the valve mechanism to close. There is also a shield which extends around a portion of the brush to engage and protect the bristles when an outer cap is placed over the brush.Type: ApplicationFiled: October 31, 2007Publication date: February 12, 2009Inventors: David M. Deans, Jacky L. Gunter, Jacquelyn I. Medina
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Patent number: 7326758Abstract: The present invention is fluorine-containing ethylene copolymer composition and a process of preparing same. The ethylene copolymers of the present invention are melt processible fluorinated copolymers having surface energies of less than about 25 dynes/cm.Type: GrantFiled: October 29, 2003Date of Patent: February 5, 2008Assignee: E. I. du Pont de Nemours and CompanyInventor: David M. Dean
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Patent number: 7279234Abstract: Disclosed are methods of using a transparent, luminescent polymer for transparent marking and/or labeling for identity verification purposes. Also disclosed are sheets, films, markers, labels and taggants comprising transparent, luminescent polymers. Also disclosed are articles labeled with a transparent, luminescent polymer. This invention particularly relates to use of transparent, luminescent polymer compositions comprising ethylene (meth)acrylic acid copolymers and rare earth ions and transparent, luminescent polymer compositions comprising methyl (meth)acrylate/(meth)acrylic acid copolymers, fatty acids and rare earth ions for these purposes.Type: GrantFiled: August 18, 2004Date of Patent: October 9, 2007Assignee: E.I. du Pont de Nemours and CompanyInventor: David M. Dean
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Patent number: 7157508Abstract: Disclosed are a thermoplastic polymer-linked-asphalt composition and a process for making a thermoplastic polymer-linked-asphalt. More particularly, the present invention relates to the reaction and resultant linking of a combination of epoxide-containing polymers and anhydride-containing polymers to asphalt to form a polymer-linked-asphalt composition having higher softening points. The improved polymer-linked-asphalt product is particularly useful in roofing applications.Type: GrantFiled: April 14, 2004Date of Patent: January 2, 2007Assignee: E. I. du Pont de Nemours and CompanyInventor: David M. Dean
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Patent number: 6992141Abstract: Polymers containing ?-methylenelact(ones)(ams) such as ?-methylenebutyrolactones are useful in blends with other polymers. For examples such polymers which have reactive groups are toughened by mixing with a rubbery material which has complimentary reactive groups, or polymers containing repeat units derived from ?-methylenelact(ones)(ams) are toughened by mixing with polymeric core-shell particles having an elastomeric core and a specified thermoplastic shell. The properties of thermoplastics are also improved by blending with ?-methylenelact(ones)(ams) such as ?-methylenebutyrolactones containing (co)polymers.Type: GrantFiled: July 28, 2003Date of Patent: January 31, 2006Assignee: E.I. du Pont de Nemours and CompanyInventors: Charles J. Brandenburg, David M. Dean, George Henry Hofmann, Rutger D. Puts, Randal King, Edmund Arthur Flexman