Patents by Inventor Christopher Scopazzi
Christopher Scopazzi 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: 7479525Abstract: A coating composition containing about 40-90% by weight of film forming binder and 10-60% by weight of an organic liquid carrier; wherein the binder contains about (a) 10-70% by weight, based on the weight of the binder, of a dispersed gelled acrylic polymer having (i) a core of gelled polymerized ethylenically unsaturated monomers which is not soluble in the organic liquid carrier and having chemically grafted thereto (ii) substantially linear stabilizer polymeric components that are soluble in the organic liquid carrier and comprise polymerized ethylenically unsaturated monomers and have a weight average molecular weight of about 500-20,000 determined by GPC (gel permeation chromatography) using polystyrene as the standard; wherein the core, the stabilizer polymeric component, or both contain at least 3% by weight of polymerized ethylenically unsaturated monomers having isocyanate groups attached thereto that are capable of reacting with component (b); (b) 30-90% by weight, based on the weight of theType: GrantFiled: September 29, 2003Date of Patent: January 20, 2009Assignee: E.I. Du Pont De Nemours & CompanyInventors: Robert J. Barsotti, Laura Ann Lewin, Christopher Scopazzi
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Patent number: 7148310Abstract: The present invention is directed to a multiple component coating composition comprising (a) a film forming binder component having isocyanate reactive groups; (b) a stable polyisocyanate solution comprising organic liquid and up to 30% by weight, based on the weight of the polyisocyanate solution, of a polyisocyanate having reactive isocyanate groups selected from an aromatic polyisocyanate having tertiary isocyanate groups or a (meth)acrylic polymer containing reactive isocyanate groups; and (c) optionally, a tinting composition comprising pigment, a dispersing agent and an organic liquid carrier; whereby components (a), (b) and (c) are blended together before application to a substrate and after application to a substrate the composition is cured to form a finish. The present invention is also directed to a method of producing a finish on a substrate and to the resulting coated substrate.Type: GrantFiled: August 13, 2004Date of Patent: December 12, 2006Assignee: E. I. du Pont de Nemours and CompanyInventors: Robert John Barsotti, Christopher Scopazzi, Douglas Matt Lamb
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Publication number: 20060100353Abstract: This invention relates to rapid drying coating compositions that are particularly useful for automotive and truck refinish applications; the coating composition is pigmented and contains a branched acrylic polymer and is particularly useful as a basecoat for a basecoat clear coat finish; the coating composition may preferably be used as a lacquer coating, which dries via solvent evaporation absent any substantial crosslinking occurring or it optionally may contain a polyisocyanate crosslinking agent and be used a clear topcoat.Type: ApplicationFiled: November 8, 2004Publication date: May 11, 2006Inventors: Robert Barsotti, Christopher Scopazzi, Frank Sobonya
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Publication number: 20050085614Abstract: The present invention is directed to a multiple component coating composition comprising (a) a film forming binder component having isocyanate reactive groups; (b) a stable polyisocyanate solution comprising organic liquid and up to 30% by weight, based on the weight of the polyisocyanate solution, of a polyisocyanate having reactive isocyanate groups selected from an aromatic polyisocyanate having tertiary isocyanate groups or a (meth)acrylic polymer containing reactive isocyanate groups; and (c) optionally, a tinting composition comprising pigment, a dispersing agent and an organic liquid carrier; whereby components (a), (b) and (c) are blended together before application to a substrate and after application to a substrate the composition is cured to form a finish. The present invention is also directed to a method of producing a finish on a substrate and to the resulting coated substrate.Type: ApplicationFiled: August 13, 2004Publication date: April 21, 2005Inventors: Robert Barsotti, Christopher Scopazzi, Douglas Lamb
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Patent number: 6822056Abstract: A process for preparing microgel(s) that uses a wide range of activatable prepolymers; in the process, a polymer composition of crosslinked component A and soluble components B and C is formed from mono-olefinic and multi-olefinic monomers in the presence of catalyst and initiator; the process comprises: I) introducing mono-olefinic monomer, catalyst, and initiator into a reactor in the absence of multi-olefinic monomer and producing an activatable prepolymer, component B; II) contacting the product of I) with multi-olefinic monomer to produce components A and C, optionally in the presence of additional initiator; also optionally in the presence of additional mono-olefinic monomer and initiator; the ratio of components A/(B+C) can be controlled by varying the mole ratio of Component B/multi-olefinic monomer from 0.05/1 up to 5/1, by decreasing the mole ratio to increase the ratio of A/(B+C), and increasing the mole ratio to decrease the ratio of A/(B+C).Type: GrantFiled: October 3, 2001Date of Patent: November 23, 2004Assignees: E. I. du Pont de Nemours and Company, Commonwealth Scientific and Industrial OrganizationInventors: Charles T. Berge, Michael Fryd, Jeffrey W. Johnson, Graeme Moad, Ezio Rizzardo, Christopher Scopazzi, San Hoa Thang
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Publication number: 20040072955Abstract: A coating composition containing about 40-90% by weight of film forming binder and 10-60% by weight of an organic liquid carrier; wherein the binder contains aboutType: ApplicationFiled: September 29, 2003Publication date: April 15, 2004Inventors: Robert J. Barsotti, Laura Ann Lewin, Christopher Scopazzi
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Patent number: 6653407Abstract: The present invention is directed to a process for forming star shaped microgels which include a core of crosslinked polymer and multiplicity of substantially linear polymeric arms of macromonomers attached to the core. The process includes polymerizing monoethylenically unsaturated monomers in the presence of a chain transfer agent to form macromonomers each having a terminal polymerizable ethylenically unsaturated group and then polymerizing, in presence of the macromonomers, the monoethylenically unsaturated monomers and multi-olefinic crosslinking monomers. The microgels of the present invention can be used as rheology control agents in waterborne and solvent-borne coatings and in adhesives and cosmetics.Type: GrantFiled: October 3, 2001Date of Patent: November 25, 2003Assignees: E. I. du Pont de Nemours and Company, Commonwealth Scientific and Industrial Research Organization, University of MelburneInventors: Charles T. Berge, Michael Fryd, Jeffrey W. Johnson, Graeme Moad, Ezio Rizzardo, Christopher Scopazzi, San Hoa Thang
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Patent number: 6646055Abstract: A process for preparing microgel(s) that uses a wide range of activatable prepolymers. In the process, a polymer composition of crosslinked component A and soluble components B and C is formed from mono-olefinic and multi-olefinic monomers in the presence of catalyst and initiator. The process comprises: I) introducing mono-olefinic monomer, catalyst, and initiator into a reactor in the absence of multi-olefinic monomer and producing an activatable prepolymer, component B; II) contacting the product of I) with multi-olefinic monomer to produce components A and C, optionally in the presence of additional initiator; also optionally in the presence of additional mono-olefinic monomer and initiator. The ratio of components A/(B+C) can be controlled by varying the mole ratio of The Component B/multi-olefinic monomer from 0.05/1 up to 5/1, by decreasing the mole ratio to increase the ratio of A/(B+C), and increasing the mole ratio to decrease the ratio of A/(B+C).Type: GrantFiled: October 3, 2001Date of Patent: November 11, 2003Assignees: E. I. du Pont de Nemours and Company, Commonwealth Scientific and Industrial Research Organization, University of MelburneInventors: Charles T. Berge, Michael Fryd, Jeffrey W. Johnson, Graeme Moad, Ezio Rizzardo, Christopher Scopazzi, San Hoa Thang
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Patent number: 6632880Abstract: A coating composition containing about 40-90% by weight of film forming binder and 10-60% by weight of an organic liquid carrier; wherein the binder contains about (a) 10-70% by weight, based on the weight of the binder, of a dispersed gelled acrylic polymer having (i) a core of gelled polymerized ethylenically unsaturated monomers which is not soluble in the organic liquid carrier and having chemically grafted thereto (ii) substantially linear stabilizer polymeric components that are soluble in the organic liquid carrier and comprise polymerized ethylenically unsaturated monomers and have a weight average molecular weight of about 500-20,000 determined by GPC (gel permeation chromatography) using polystyrene as the standard; wherein the core, the stabilizer polymeric component, or both contain at least 3% by weight of polymerized ethylenically unsaturated monomers having isocyanate groups attached thereto that are capable of reacting with component (b); (b) 30-90% by weight, based on the weight of the bType: GrantFiled: July 9, 2001Date of Patent: October 14, 2003Assignee: E. I. du Pont de Nemours and CompanyInventors: Robert J. Barsotti, Laura Ann Lewin, Christopher Scopazzi
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Publication number: 20030018124Abstract: A coating composition containing about 40-90% by weight of film forming binder and 10-60% by weight of an organic liquid carrier; wherein the binder contains aboutType: ApplicationFiled: July 9, 2001Publication date: January 23, 2003Inventors: Robert J. Barsotti, Laura Ann Lewin, Christopher Scopazzi
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Patent number: 6471185Abstract: This invention provides for a two-pack solvent based coating composition that cures in two stages when applied over substrates. The first stage of the cure takes place rapidly under ambient conditions to produce a coating surface that can be readily sanded or buffed. Thereafter, over a period of days a second stage cure takes place to produce a coating having excellent coating properties. Thus, a coated component, such as automotive body, can be speedily moved out from a spray booth without affecting the surface quality of the coated surface. As a result, coating operation productivity can be increased. The aforedescribed dual cure properties of the coating composition result from including in a binder component of the coating composition an acrylic polymer having secondary amine and hydroxyl functionalities. The composition is most suited for use in automotive refinish applications.Type: GrantFiled: July 25, 2001Date of Patent: October 29, 2002Assignee: E. I. du Pont de Nemours and CompanyInventors: Laura Ann Lewin, Christopher Scopazzi, Douglas Matt Lamb
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Patent number: 6462114Abstract: A process for forming a microgel which comprises a crosslinked core and a multiplicity of linear polymeric arms attached to the core, wherein the process comprises (a) first forming a halogen atom terminated prepolymer with a weight average molecular weight from 1,000 to 25,000 by polymerizing monoethylenically unsaturated monomers in the presence of an organic sulfonyl halide, an organic complexing agent and a transition metal (i.e., Cu, Ru, Ni, Re, Pd, Fe, or Rh); and (b) subsequently polymerizing the prepolymer with a mixture of monoethylenically unsaturated monomers and 0.5 to 60 mole percent, based on the total moles of monomer and prepolymer, of multi-olefinic polymerizable monomers to form a microgel with a weight average molecular weight of 10,000 to 100,000,000 and crosslinked core.Type: GrantFiled: October 3, 2001Date of Patent: October 8, 2002Assignee: E. I. du Pont de Nemours and CompanyInventors: Charles T. Berge, Michael Fryd, Jeffrey W. Johnson, Graeme Moad, Ezio Rizzardo, Christopher Scopazzi, San Hoa Thang
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Publication number: 20020082351Abstract: This invention provides for a two-pack solvent based coating composition that cures in two stages when applied over substrates. The first stage of the cure takes place rapidly under ambient conditions to produce a coating surface that can be readily sanded or buffed. Thereafter, over a period of days a second stage cure takes place to produce a coating having excellent coating properties. Thus, a coated component, such as automotive body, can be speedily moved out from a spray booth without affecting the surface quality of the coated surface. As a result, coating operation productivity can be increased. The aforedescribed dual cure properties of the coating composition result from including in a binder component of the coating composition an acrylic polymer having secondary amine and hydroxyl functionalities. The composition is most suited for use in automotive refinish applications.Type: ApplicationFiled: July 25, 2001Publication date: June 27, 2002Inventors: Laura Ann Lewin, Christopher Scopazzi, Douglas Matt Lamb
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Patent number: 6355718Abstract: A process for preparing microgel(s) that uses a wide range of activatable prepolymers; in the process, a polymer composition of crosslinked component A and soluble components B and C is formed from mono-olefinic and multi-olefinic monomers in the presence of catalyst and initiator; the process comprises: I) introducing mono-olefinic monomer, catalyst, and initiator into a reactor in the absence of multi-olefinic monomer and producing an activatable prepolymer, component B; II) contacting the product of I) with multi-olefinic monomer to produce components A and C, optionally in the presence of additional initiator; also optionally in the presence of additional mono-olefinic monomer and initiator; the ratio of components A/(B+C) can be controlled by varying the mole ratio of Component B/ multi-olefinic monomer from 0.05/1 up to 5/1, by decreasing the mole ratio to increase the ratio of A/(B+C), and increasing the mole ratio to decrease the ratio of A/(B+C).Type: GrantFiled: July 9, 1999Date of Patent: March 12, 2002Assignees: E. I. du Pont de Nemours and Company, Commonwealth Scientific and Industrial Research Organization, University of Melbourne, AustraliaInventors: Charles T. Berge, Michael Fryd, Jeffrey W. Johnson, Graeme Moad, Ezio Rizzardo, Christopher Scopazzi, San Hoa Thang
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Publication number: 20020022683Abstract: A process for preparing microgel(s) that uses a wide range of activatable prepolymers; in the process, a polymer composition of crosslinked component A and soluble components B and C is formed from mono-olefinic and multi-olefinic monomers in the presence of catalyst and initiator; the process comprises:Type: ApplicationFiled: October 3, 2001Publication date: February 21, 2002Inventors: Charles T. Berge, Michael Fryd, Jeffrey W. Johnson, Graeme Moad, Ezio Rizzardo, Christopher Scopazzi, San Hoa Thang
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Publication number: 20020022684Abstract: A process for preparing microgel(s) that uses a wide range of activatable prepolymers; in the process, a polymer composition of crosslinked component A and soluble components B and C is formed from mono-olefinic and multi-olefinic monomers in the presence of catalyst and initiator; the process comprises:Type: ApplicationFiled: October 3, 2001Publication date: February 21, 2002Inventors: Charles T. Berge, Michael Fryd, Jeffery W. Johnson, Graeme Moad, Ezio Rizzardo, Christopher Scopazzi, San H. Thang
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Publication number: 20020019475Abstract: A process for preparing microgel(s) that uses a wide range of activatable prepolymers; in the process, a polymer composition of crosslinked component A and soluble components B and C is formed from mono-olefinic and multi-olefinic monomers in the presence of catalyst and initiator; the process comprises:Type: ApplicationFiled: October 3, 2001Publication date: February 14, 2002Inventors: Charles T. Berge, Michael Fryd, Jeffery W. Johnson, Graeme Moad, Ezio Rizzardo, Christopher Scopazzi, San Hoa Thang
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Publication number: 20020019476Abstract: A process for preparing microgel(s) that uses a wide range of activatable prepolymers; in the process, a polymer composition of crosslinked component A and soluble components B and C is formed from mono-olefinic and multi-olefinic monomers in the presence of catalyst and initiator; the process comprises:Type: ApplicationFiled: October 3, 2001Publication date: February 14, 2002Inventors: Charles T. Berge, Michael Fryd, Jeffrey W. Johnson, Graeme Moad, Ezio Rizzardo, Christopher Scopazzi, San Hoa Thang
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Patent number: 6326059Abstract: This invention provides for a two-pack solvent based coating composition that cures in two stages when applied over substrates. The first stage of the cure takes place rapidly under ambient conditions to produce a coating surface that can be readily sanded or buffed. Thereafter, over a period of days a second stage cure takes place to produce a coating having excellent coating properties. Thus, a coated component, such as automotive body, can be speedily moved out from a spray booth without affecting the surface quality of the coated surface. As a result, coating operation productivity can be increased. The aforedescribed dual cure properties of the coating composition result from including in a binder component of the coating composition an acrylic polymer having secondary amine and hydroxyl functionalities. The composition is most suited for use in automotive refinish applications.Type: GrantFiled: August 7, 2000Date of Patent: December 4, 2001Assignee: E.I. du Pont de Nemours and CompanyInventors: Laura Ann Lewin, Christopher Scopazzi, Douglas Matt Lamb
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Patent number: 6254878Abstract: Colored and clear nail polish compositions comprise a solvent system having no more than 30 weight % water, a film forming acrylic binder prepared from (meth)acrylic monomers and stirene and which further contain specific adhesion promoting monomers or monomer combinations selected from (1) anhydride, anhydride plus acid, anhydride plus ureido, anhydride plus beta-diketone; (2) acid plus hydroxy; and (3) ureido, ureido plus acid, or ureido plus beta-diketone have properties equal to or better than commercially available nail polish compositions and permit the formulation of all acrylic pigmented nail polish compositions.Type: GrantFiled: July 1, 1999Date of Patent: July 3, 2001Assignee: E. I. du Pont de Nemours and CompanyInventors: Milan Bohuslav Bednarek, Christopher Scopazzi