Patents Represented by Attorney Sudhir G. Deshmukh
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Patent number: 7263777Abstract: An apparatus for scribing the coating on a coated panel; comprising a base, at least one linear guide affixed to the base, a moveable table, a pivotable bracket mounted on the base, a cutter element mounted on the bracket; a loading mechanism positioned on top of the bracket, such that when the cutter element in the cutter assembly is brought into contact with a panel positioned on the moveable table, the loading mechanism applies a uniform force to the panel position on the table. The cutter element in contact with the panel scribes the panel through the coating thereby forming a scribe of at least one line on the panel.Type: GrantFiled: June 16, 2005Date of Patent: September 4, 2007Assignee: E. I. de Pont de Nemours and CompanyInventor: Jerome T. Adams
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Patent number: 7264160Abstract: The present invention is directed to a process for monitoring production of a target composition, such as an automotive paint or an architectural paint and a monitoring device used therein. The process includes (a) identifying one or more formulas associated with identification criteria of the target composition, the formula providing a required inventory for making a desired amount of the target composition; (b) generating a current inventory; (c) terminating the process if the current inventory does not match with a stored inventory; or (d) continuing the process if the current inventory matches with the stored inventory.Type: GrantFiled: December 29, 2004Date of Patent: September 4, 2007Assignee: E.I. du Pont de Nemours and CompanyInventors: Christine Darlene Ames Polarine, James D. Goldschneider, John Paul Gallagher, Robert Vincent Canning, Jr., James Fredrick MacFawn
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Patent number: 7264161Abstract: The present invention is directed to a process for monitoring production of a target composition, such as an automotive paint or an architectural paint and a monitoring device used therein. The process includes (a) identifying one or more formulas associated with identification criteria of the target composition, the formula providing a required inventory for making a desired amount of the target composition; (b) generating a current inventory; (c) comparing the current inventory against the required inventory to ascertain whether said current inventory fulfills said required inventory; (d) generating a supplementary inventory if the current inventory partially fulfills the required inventory; (e) dispensing required items listed in the required inventory from current items listed in the current inventory, supplementary items listed in the supplementary inventory, or a combination thereof to make the desired amount of the target composition; and (f) generating an updated inventory.Type: GrantFiled: December 29, 2004Date of Patent: September 4, 2007Assignee: E. I. du Pont de Nemours and CompanyInventor: Christine Darlene Ames Polarine
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Patent number: 7250479Abstract: This invention concerns a free radical polymerization process, selected chain transfer agents employed in the process and polymers made thereby, in which the process comprises preparing polymer of general Formula (A) and Formula (B) comprising contacting: (i) a monomer selected from the group consisting of vinyl monomers (of structure CH2?CUV), maleic anhydride, N-alkylmaleimide, N-arylmaleimide, dialkyl fumarate and cyclopolymerizable monomers; (ii) a thiocarbonylthio compound selected from Formula (C) and Formula (D) having a chain transfer constant greater than about 0.Type: GrantFiled: February 23, 2004Date of Patent: July 31, 2007Assignees: E. I. du Pont de Nemours and Company, Commonwealth Scientific and Industrial Research OrganizationInventors: Tam Phuong Le, Graeme Moad, Ezio Rizzardo, San Hoa Thang
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Patent number: 7248350Abstract: The invention is directed to a method for determining repairability of an original clear coat applied over a darkly pigmented substrate with a corresponding repair clear coat used in repairing damaged original vehicle coatings. The method non-destructively determines the refractive indices of the original clear coat and the corresponding repair clear coats by acquiring the reflection spectrum of these coats with a spectrophotometer with d/8° measurement geometry with and without the specular components followed by determining the refractive indices with the assistance of the differential spectrum between the reflection spectrums with and without the specular components, and then comparing the refractive indices to determine difference between these refractive indices, wherein when the difference between the refractive indices of the original arid repair clear coats is within an acceptable range, the repair clear coat is used for repairing the original clear coat.Type: GrantFiled: April 27, 2004Date of Patent: July 24, 2007Assignee: E. I. du Pont de Nemours and CompanyInventor: Wilhelm Kettler
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Patent number: 7199194Abstract: This invention relates to rapid curing coating compositions that are particularly useful for automotive OEM and refinish applications. The coating composition includes a binder component that contains a novel highly branched copolyester polyol, and a crosslinking component that contains conventional crosslinking agents, such as polyisocyanate and melamine. This invention is also directed to a process for producing coatings from the rapid curing coating compositions. These compositions are especially useful in providing for mar resistant and flexible coatings.Type: GrantFiled: October 13, 2004Date of Patent: April 3, 2007Assignee: E. I. du Pont de Nemours and CompanyInventors: Robert John Barsotti, Carl Brent Douglas, Laura A. Lewin, Isao Nagato, Lech Wilczek
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Patent number: 7158672Abstract: The present invention provides a color recipe calculation method for matt finished, solid color shades, by means of which it is possible to determine the proportion of matting agents in a color recipe in a manner decoupled from the actual calculation of the recipe and is based on a conventional spectrophotometric characterization of a matt sample using a standardised 45°/0° measurement geometry along with an established gloss measurement, or alternatively using a spectrophotometer equipped with a d/8° measurement geometry and analyzing readings taken with the specular component included and excluded.Type: GrantFiled: June 11, 2003Date of Patent: January 2, 2007Assignee: E. I. du Pont de Nemours and CompanyInventors: Uwe Johansson, Wilhelm Kettler
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Patent number: 7148297Abstract: This invention relates to a process for controlling the architecture of copolymers of at least two unsaturated monomers, made by free-radical polymerization in the presence of a cobalt-containing chain transfer agent, including the control of molecular weight, degree of branching and vinyl end group termination, by varying at least one of the variables of molar ratio of monomers, their relative chain transfer constants, polymerization temperature and degree of conversion and amount of cobalt chain transfer agent; and polymers made thereby.Type: GrantFiled: January 24, 2003Date of Patent: December 12, 2006Assignees: E. I. du Pont de Nemours and Company, Commonwealth Scientific and Industrial Research OrganisationInventors: Graeme Moad, Ezio Rizzardo, Catherine Moad, Steven Dale Ittel, Lech Wilczek, Alexei A Gridnev
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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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Patent number: 7129290Abstract: Polymeric compositions containing spiroorthocarbonate groups and another functional group which reacts with hydroxyl groups are readily crosslinked on contact with water. These compositions are useful as sealants, coatings and encapsulants.Type: GrantFiled: January 11, 2002Date of Patent: October 31, 2006Assignee: E. I. du Pont de Nemours and CompanyInventors: Robert John Barsotti, Patrick Henry Corcoran, Neville Everton Drysdale, Laura Ann Lewin
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Patent number: 7109282Abstract: This invention relates to a process for controlling the architecture of copolymers of at least two unsaturated monomers, made by free-radical polymerization in the presence of a cobalt-containing chain transfer agent, including the control of molecular weight, degree of branching and vinyl end group termination, by varying at least one of the variables of molar ratio of monomers, their relative chain transfer constants, polymerization temperature and degree of conversion and amount of cobalt chain transfer agent; and polymers made thereby.Type: GrantFiled: April 18, 2003Date of Patent: September 19, 2006Assignees: E. I. du Pont de Nemours and Company, Commonwealth Scientific and Industrial Research OrganisationInventors: Graeme Moad, Ezio Rizzardo, Catherine Louise Moad, Steven Dale Ittel, Lech Wilczek, Alexei A. Gridnev
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Patent number: 7071264Abstract: This invention relates to rapid curing coating compositions that are particularly useful for automotive OEM and refinish applications. The coating composition includes a crosslinkable component that contains a novel highly branched acrylic polymer, and a crosslinking component that contains conventional crosslinking agents, such as polyisocyanate and melamine. This invention is also directed to a process for producing coatings from the rapid curing coating compositions. These compositions are especially useful in providing hard highly crosslinked coatings.Type: GrantFiled: July 7, 2004Date of Patent: July 4, 2006Assignee: E.I. du Pont de Nemours and CompanyInventors: Thomas Robert Darling, Robert John Barsotti, Alexei A. Gridnev, Patricia Mary Ellen Sormani
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Patent number: 7029618Abstract: The present invention relates compositions containing acetoacetylated polyvinyl polymers obtained from polyvinyl polymers, such as polyvinyl butyrals. These coating compositions are especially suitable for use as wash primers in automotive OEM and refinish coating applications.Type: GrantFiled: March 4, 2005Date of Patent: April 18, 2006Assignee: E.I. duPont de Nemours and CompanyInventors: Lorenzo Fred Pelosi, Patricia Mary Ellen Sormani
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Patent number: 7015288Abstract: The present invention relates compositions containing acetoacetylated polyvinyl polymers obtained from polyvinyl polymers, such as polyvinyl butyrals. These coating compositions are especially suitable for use as wash primers in automotive OEM and refinish coating applications.Type: GrantFiled: March 4, 2005Date of Patent: March 21, 2006Assignee: E.I. du Pont de Nemours and CompanyInventors: Lorenzo Fred Pelosi, Patricia Mary Ellen Sormani
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Patent number: 7001958Abstract: The present invention relates to curable coating compositions containing acetoacetylated polyvinyl polymers obtained from polyvinyl polymers, such as polyvinyl butyrals. These coating compositions are especially suitable for use as wash primers in automotive OEM and refinish coating applications.Type: GrantFiled: March 14, 2005Date of Patent: February 21, 2006Assignee: E. I. duPont de Nemours and CompanyInventors: Lorenzo Fred Pelosi, Patricia Mary Ellen Sormani
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Patent number: 6998154Abstract: This invention relates to rapid curing coating compositions that are particularly useful for automotive OEM and refinish applications. The coating composition includes a binder component that contains a novel highly branched copolyester polyol, and a crosslinking component that contains conventional crosslinking agents, such as polyisocyanate and melamine. This invention is also directed to a process for producing coatings from the rapid curing coating compositions. These compositions are especially useful in providing for mar resistant and flexible coatings.Type: GrantFiled: February 19, 2003Date of Patent: February 14, 2006Assignee: E. I. du Pont de Nemours and CompanyInventors: Robert John Barsotti, Carl Brent Douglas, Laura A. Lewin, Isao Nagata, Lech Wilczek
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Patent number: 6989421Abstract: The present invention is directed to two component coating compositions that cure under ambient conditions and more particularly to those having low VOC (volatile organic content) that are suitable for use in automotive refinish and Original Equipment Manufacturing (OEM) applications. The coating composition includes crosslinkable and crosslinking components, wherein the crosslinkable component includes a low polydispersity, low molecular weight copolymer having on an average 2 to 25 crosslinkable functional groups, such as hydroxyl, acetoacetoxy, carboxyl, epoxy, primary amine and secondary amine. The copolymer is polymerized from a monomer mixture that includes one or more non-functional methacrylate monomers and one or more functional acrylate monomers provided with the functional groups. The crosslinking component includes polyisocyanate, polyamine, epoxy, polyacid, ketimine, melamine, or a combination thereof. The invention is also directed to coating produced from the coating composition.Type: GrantFiled: July 2, 2003Date of Patent: January 24, 2006Assignee: E. I. duPont deNemours and CompanyInventor: Michael Charles Grady
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Patent number: 6984693Abstract: A two-stage cure coating composition of a binder and a crosslinking component; the binder comprises and acrylic polymer having a weight average molecular weight of 3,000 to 50,000 and hydroxyl moieties in the range of 7.0 to 40.0 weight; wherein at least 40.0 weight percent of the hydroxyl moieties are provided by hydroxy butyl acrylate; the crosslinking component comprises an organic polyisocyanate; and the first stage curing of a finish of the composition forms a water spot free finish within 90 minutes of application and the composition has a pot life of less than a 2 second rise in Zahn cup viscosity in 150 minutes; and the invention also is directed to a method of producing a finish on a substrate utilizing the coating composition.Type: GrantFiled: April 30, 2004Date of Patent: January 10, 2006Assignee: E. I. du Pont de Nemours and CompanyInventors: Laura Ann Lewin, Brian Patrick Devlin, Donald Albert Paquet, Jr., James Lamonte Adams
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Patent number: 6952265Abstract: The method of present invention and the device used therein is directed for characterizing unknown metallic flakes present in an existing coating on a substrate such that a matching metallic paint composition can be formulated and applied over the substrate to produce a metallic coating having characteristics, such as flop, that match the existing coating.Type: GrantFiled: April 19, 2004Date of Patent: October 4, 2005Assignee: E. I. du Pont de Nemours and CompanyInventors: Arun Prakash, Roger Albert Karmes, Judith Elaine Obetz, William B. Schenk, John P. Gallagher, Allan Blase Joseph Rodrigues
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Patent number: 6919416Abstract: The present invention relates compositions containing acetoacetylated polyvinyl polymers obtained from polyvinyl polymers, such as polyvinyl butyrals. These coating compositions are especially suitable for use as wash primers in automotive OEM and refinish coating applications.Type: GrantFiled: February 9, 2004Date of Patent: July 19, 2005Assignee: E. I. du Pont de Nemours and CompanyInventors: Lorenzo Fred Pelosi, Patricia Mary Ellen Sormani