Patents by Inventor Frank Rohrbacher
Frank Rohrbacher 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: 7288589Abstract: A pigment dispersion with improved rheology useful for forming solventborne paint compositions is disclosed. The dispersion comprises a copolymer pigment dispersant having at least one quaternary ammonium functional group; a pigment having a pH below 7.0; and an organic liquid carrier. The dispersion is particularly useful for forming colored exterior finishes for automobiles and trucks.Type: GrantFiled: December 16, 2002Date of Patent: October 30, 2007Assignee: E. I. du Pont de Nemours & CompanyInventors: Bonnie D. Piro, Frank Rohrbacher
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Patent number: 6984280Abstract: An automotive quality paint coat is laminated to the exterior surface of a molded plastic car body member or panel. In one embodiment, the paint coat includes an exterior clear coat above a color coat. During processing, the clear coat and color coat are each coated on a temporary flexible casting sheet and dried. A high gloss surface is transferred to the clear coat from the casting sheet. The paint coat is then transferred from the casting sheet to a thin, semi-flexible thermoformable plastic backing sheet by dry paint transfer-laminating techniques. The resulting laminate is thermoformed into a complex three-dimensional shape of the car body member or panel. The preformed laminate is then bonded to an underlying plastic substrate material, by injection-cladding techniques, for example, to form the finished article. The paint coat has sufficient elongation to retain exterior automotive appearance and durability properties during thermoforming without deglossing.Type: GrantFiled: May 8, 2003Date of Patent: January 10, 2006Assignee: Avery Dennison CoporationInventors: Patrick L. Spain, Keith L. Truog, Frank Rohrbacher, Jr.
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Patent number: 6966962Abstract: An automotive quality paint coat is laminated to the exterior surface of a molded plastic car body member or panel. In one embodiment, the paint coat includes an exterior clear coat above a color coat. During processing, the clear coat and color coat are each coated on a temporary flexible casting sheet and dried. A high gloss surface is transferred to the clear coat from the casting sheet. The paint coat is then transferred from the casting sheet to a thin, semi-flexible thermoformable plastic backing sheet by dry paint transfer-laminating techniques. The resulting laminate is thermoformed into a complex three-dimensional shape of the car body member or panel. The preformed laminate is then bonded to an underlying plastic substrate material, by injection-cladding techniques, for example, to form the finished article. The paint coat has sufficient elongation to retain exterior automotive appearance and durability properties during thermoforming without deglossing.Type: GrantFiled: April 3, 2003Date of Patent: November 22, 2005Assignee: Avery Dennison CorporationInventors: Patrick L. Spain, Keith L. Truog, Frank Rohrbacher, Jr.
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Publication number: 20040123941Abstract: An automotive quality paint coat is laminated to the exterior surface of a molded plastic car body member or panel. In one embodiment, the paint coat includes an exterior clear coat above a color coat. During processing, the clear coat and color coat are each coated on a temporary flexible casting sheet and dried. A high gloss surface is transferred to the clear coat from the casting sheet. The paint coat is then transferred from the casting sheet to a thin, semi-flexible thermoformable plastic backing sheet by dry paint transfer-laminating techniques. The resulting laminate is thermoformed into a complex three-dimensional shape of the car body member or panel. The preformed laminate is then bonded to an underlying plastic substrate material, by injection-cladding techniques, for example, to form the finished article. The paint coat has sufficient elongation to retain exterior automotive appearance and durability properties during thermoforming without deglossing.Type: ApplicationFiled: April 3, 2003Publication date: July 1, 2004Inventors: Patrick L. Spain, Keith L. Truog, Frank Rohrbacher
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Publication number: 20040123942Abstract: An automotive quality paint coat is laminated to the exterior surface of a molded plastic car body member or panel. In one embodiment, the paint coat includes an exterior clear coat above a color coat. During processing, the clear coat and color coat are each coated on a temporary flexible casting sheet and dried. A high gloss surface is transferred to the clear coat from the casting sheet. The paint coat is then transferred from the casting sheet to a thin, semi-flexible thermoformable plastic backing sheet by dry paint transfer-laminating techniques. The resulting laminate is thermoformed into a complex three-dimensional shape of the car body member or panel. The preformed laminate is then bonded to an underlying plastic substrate material, by injection-cladding techniques, for example, to form the finished article. The paint coat has sufficient elongation to retain exterior automotive appearance and durability properties during thermoforming without deglossing.Type: ApplicationFiled: May 8, 2003Publication date: July 1, 2004Inventors: Patrick L. Spain, Keith L. Truog, Frank Rohrbacher
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Publication number: 20040122160Abstract: A pigment dispersion with improved rheology useful for forming solventborne paint compositions is disclosed. The dispersion comprises a copolymer pigment dispersant having at least one quaternary ammonium functional group; a pigment having a pH below 7.0; and an organic liquid carrier. The dispersion is particularly useful for forming colored exterior finishes for automobiles and trucks.Type: ApplicationFiled: December 16, 2002Publication date: June 24, 2004Inventors: Bonnie D. Piro, Frank Rohrbacher
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Patent number: 5590960Abstract: Paint compositions useful for automotive applications are made using a one tank process with an associated circulation loop. Addition ports located in close proximity to a zone of high speed mixing allows for rapid blending of materials into the process stream. A bypass subloop connected to the circulation loop will divert paint to grinding apparatus achieve addition of pigments on-line. Instrumentation attached to the circulation loop directly measures the process stream parameters such as viscosity, pH, temperature, and pressure.Type: GrantFiled: March 20, 1996Date of Patent: January 7, 1997Assignee: E. I. Du Pont de Nemours and CompanyInventors: Peter M. Clinton, Nathan Cloud, Frank Rohrbacher
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Patent number: 5114756Abstract: A conductive coating composition containing a binder and pigment in a pigment to binder weight ratio of about 15:100 to 100:100; wherein the binder contains(A) a multifunctional amine, a polyamide resin, polyamidoamine resin or any mixtures thereof; and(B) a multifunctional epoxy resin;wherein the electrically conductive pigment is a silica which is either amorphous silica, a silica containing material or a silica coated pigment, the silica is in association with a two-dimensional network of antimony-containing tin oxide crystallites in which the antimony content ranges from about 1-30% by weight of the tin oxide and the composition forms a coating on a substrate that has a surface conductivity of at least 100 Ransburg units. The coating can be used on metal or plastic substrates or previously coated substrates of either plastic or metal to render the substrate conductive and easily grounded for electrostatic spraying.Type: GrantFiled: May 10, 1991Date of Patent: May 19, 1992Assignee: E. I. Du Pont de Nemours and CompanyInventors: Mary N. Mirabeau, Frank Rohrbacher
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Patent number: 5055346Abstract: A process for forming a composite useful as an exterior vehicle part that has the following layers components:a. a layer of a glossy clear acrylic thermoplastic finish bonded firmly tob. a layer of an acrylic thermoplastic pigment containing paint firmly bonded toc. a flexible thermoformable polymeric material that is bonded tod. a thick rigid synthetic resinous substrate;The resulting composite and thermoformable laminate that can be made into the above composite having the layers a.-c. of the above structure also are part of this invention.Type: GrantFiled: December 8, 1989Date of Patent: October 8, 1991Inventor: Frank Rohrbacher
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Patent number: 5051209Abstract: A conductive coating composition containing a binder and pigment in a pigment to binder weight ratio of about 15:100 to 100:100; wherein the binder contains(A) a multifunctional amine, a polyamide resin, polyamidoamine resin or any mixtures thereof; and(B) a multifunctional epoxy resin;wherein the electrically conductive pigment is a silica which is either amorphous silica, a silica containing material or a silica coated pigment, the silica is in association with a two-dimensional network of antimony-containing tin oxide crystallites in which the antimony content ranges from about 1-30% by weight of the tin oxide and the composition forms a coating on a substrate that has a surface conductivity of at least 100 Ransburg units. The coating can be used on metal or plastic substrates or previously coated substrates of either plastic or metal to render the substrate conductive and easily grounded for electrostatic spraying.Type: GrantFiled: April 27, 1990Date of Patent: September 24, 1991Assignee: E. I. Du Pont de Nemours and CompanyInventors: Mary N. Mirabeau, Frank Rohrbacher
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Patent number: 5001000Abstract: A process for making a rigid composite structure with a thermoplastic polymer surface by:a. thermoforming a thermoplastic polymeric sheet into a three dimensional structure; the sheet has primary glass transition temperature that is at least 10.degree. C. greater than the molding temperature of step c. below;b. placing the thermoformed structure and a charge of sheet molding compound (SMC) in a mold andc. heating the charge and thermoformed structure under pressure in the mold to cure the SMC and to adhere the SMC to the thermoformed structure, where the molding temperature is at least 10.degree. C. below the primary glass transition temperature of the thermoplastic polymeric sheet;the resulting composite structure which can be finished with a paint or a layer of clear coat and color coat also is part of the invention.Type: GrantFiled: February 13, 1990Date of Patent: March 19, 1991Assignee: E. I. Du Pont de Nemours and CompanyInventors: Frank Rohrbacher, Patrick L. Spain, Roger A. Fahlsing
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Patent number: 4959189Abstract: A process for making a rigid composite structure with a thermoplastic polymer surface by:a. thermoforming a thermoplastic polymeric sheet into a three dimensional structure; the sheet has a primary glass transition temperature that is at least 10.degree. C. greater than the molding temperature of step c. below;b. placing the thermoformed structure and a charge of sheet molding compound (SMC) in a mold andc. heating the charge and thermoformed structure under pressure in the mold to cure the SMC and to adhere the SMC to the thermoformed structure, where the molding temperature is at least 10.degree. C. below the primary glass transition temperature of the thermoplastic polymeric sheet;the resulting composite structure which can be finished with a paint or a layer of clear coat and color coat also is part of the invention.Type: GrantFiled: September 26, 1988Date of Patent: September 25, 1990Assignee: E. I. Du Pont de Nemours and CompanyInventors: Frank Rohrbacher, Patrick L. Spain, Roger A. Fahlsing
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Patent number: 4936936Abstract: A process for forming a composite useful as an exterior vehicle part that has the following layered components:a. a layer of a glossy clear acrylic thermoplastic finish bonded firmly tob. a layer of an acrylic thermoplastic pigment containing paint firmly bonded toc. a flexible thermoformable polymeric material that is bonded tod. a thick rigid synthetic resinous substrate;The resulting composite and thermoformable laminate that can be made into the above composite having the layers a.-c. of the above structure also are part of this invention.Type: GrantFiled: August 30, 1988Date of Patent: June 26, 1990Assignee: E. I. du Pont de Nemours and CompanyInventor: Frank Rohrbacher
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Patent number: 4902557Abstract: A thermoplastic polyolefin composite that is useful as an exterior auto or truck body part has the following layers of components:a. a layer of a glossy clear thermoplastic finish bonded firmly tob. a layer of a thermoplastic pigment containing paint firmly bonded toc. a thin size layer of a thermoplastic chlorinated polyolefin that is firmly bonded tod. a flexible sheet of a thermoplastic polyolefin resin.A thermoformable composite sheet structure that can be made into the above laminate having the layers a.-d. of the above structure also is part of this invention.Type: GrantFiled: January 25, 1988Date of Patent: February 20, 1990Assignee: E. I. Du Pont de Nemours and CompanyInventor: Frank Rohrbacher