Patents by Inventor G. Daniel Gasperson
G. Daniel Gasperson 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: 6416859Abstract: Polymeric compositions include a nonaqueous additive system having dispersant-coated pigments physically dispersed in a liquid nonaqueous polymeric carrier which may be added directly to a melt flow of a polymeric host material. The additive system employed in the polymeric systems is most preferably in the form of a particulate paste which can be added in metered amounts (dosed) to a melt flow of the polymeric host material prior to being spun into filaments. By providing a number of additive systems having a number of different additive attributes, and controllably dosing one or more into the melt flow of host polymeric material, shaped objects of the polymeric material (e.g., melt-spun filaments) having different additive attributes may be produced on a continuous basis without shutting down the shaping operation.Type: GrantFiled: October 17, 2000Date of Patent: July 9, 2002Assignee: BASF CorporationInventors: Donald Caswell, Frank R. Jones, David B. Ledford, Stanley A. McIntosh, Gary W. Shore, Karl H. Buchanan, Wayne S. Stanko, G. Daniel Gasperson, Charles F. Helms, Jr.
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Patent number: 6232371Abstract: Polymeric compositions include a nonaqueous additive system having dispersant-coated pigments physically dispersed in a liquid nonaqueous polymeric carrier which may be added directly to a melt flow of a polymeric host material. The additive system employed in the polymeric systems is most preferably in the form of a particulate paste which can be added in metered amounts (dosed) to a melt flow of the polymeric host material prior to being spun into filaments. By providing a number of additive systems having a number of different additive attributes, and controllably dosing one or more into the melt flow of host polymeric material, shaped objects of the polymeric material (e.g., melt-spun filaments) having different additive attributes may be produced on a continuous basis without shutting down the shaping operation.Type: GrantFiled: May 11, 1998Date of Patent: May 15, 2001Assignee: BASF CorporationInventors: Donald Caswell, Frank R. Jones, David B. Ledford, Stanley A. McIntosh, Gary W. Shore, Karl H. Buchanan, Wayne S. Stanko, G. Daniel Gasperson, Charles F. Helms, Jr.
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Patent number: 5973032Abstract: Dispersible additive systems for polymeric materials include dispersant-coated pigments in a liquid nonaqueous polymeric carrier. The additive systems are most preferably in the form of a particulate nonaqueous paste which can be added in metered amounts (dosed) to a melt flow of the polymeric host material prior to being shaped (for example, prior to being spun into synthetic filaments). By providing a number of additive systems having a number of different additive attributes, and controllably dosing one or more into the melt flow of polymeric material, shaped objects of the polymeric material (e.g., melt-spun filaments) having different additive attributes may be produced on a continuous basis without shutting down the shaping operation.Type: GrantFiled: October 14, 1997Date of Patent: October 26, 1999Assignee: BASF CorporationInventors: Donald Caswell, Frank R. Jones, Stanley A. McIntosh, Gary W. Shore, G. Daniel Gasperson
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Patent number: 5955516Abstract: Additives for polymeric compositions are prepared by coating pigment with a dispersant, and thereafter dispersing the dispersant-coated pigment in a liquid nonaqeous polymeric carrier. Preferably, the dispersant-coated pigment is spray-dried. That is, most preferably, an aqueous dispersion of the pigment and dispersant is subjected to a spray-drying operation so as to obtain pigment coated with the dispersant. The dispersant-coated pigment will have an average particle size of about 5 .mu.m or greater, but is capable of breaking apart to average particle sizes of about 1 .mu.m or less when dispersed in a polymeric host material.Type: GrantFiled: March 3, 1997Date of Patent: September 21, 1999Assignee: BASF CorporationInventors: Donald Caswell, Frank R. Jones, Stanley A. McIntosh, Gary W. Shore, G. Daniel Gasperson
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Patent number: 5889089Abstract: Polymeric compositions include a nonaqueous additive system having dispersant-coated pigments physically dispersed in a liquid nonaqueous polymeric carrier which may be added directly to a melt flow of a polymeric host material. The additive system employed in the polymeric systsms is most preferably in the form of a particulate paste which can be added in metered amounts (dosed) to a melt flow of the polymeric host material prior to being spun into filaments. By providing a number of additive systems having a number of different additive attributes, and controllably dosing one or more into the melt flow of host polymeric material, shaped objects of the polymeric material (e.g., melt-spun filaments) having different additive attributes may be produced on a continuous basis without shutting down the shaping operation.Type: GrantFiled: March 3, 1997Date of Patent: March 30, 1999Assignee: BASF CorporationInventors: Donald Caswell, Frank R. Jones, Stanley A. McIntosh, Gary A. Shore, G. Daniel Gasperson
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Patent number: 5869551Abstract: Dispersible additive systems for polymeric materials include a dispersant-coated pigments in a liquid nonaqueous polymeric. The additive systems are most preferably in the form of a particulate nonaqueous paste which can be added in metered amounts (dosed) to a melt flow of the polymeric host material prior to being shaped (for example, prior to being spun into synthetic filaments). By providing a number of additive systems having a number of different additive attributes, and controllably dosing one or more into the melt flow of polymeric material, shaped objects of the polymeric material (e.g., melt-spun filaments) having different additive attributes may be produced on a continuous basis without shutting down the shaping operation.Type: GrantFiled: March 3, 1997Date of Patent: February 9, 1999Assignee: BASF CorporationInventors: Donald Caswell, Frank R. Jones, Stanley A. McIntosh, Gary A. Shore, G. Daniel Gasperson
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Patent number: 5834089Abstract: Synthetic filaments include a nonaqueous additive system having dispersant-coated pigments physically dispersed in a liquid nonaqueous polymeric carrier. The additive system is most preferably in the form of a particulate paste which can be added in metered amounts (dosed) to a melt flow of the polymeric host material prior to being spun into filaments. By providing a number of additive systems having a number of different additive attributes, and controllably dosing one or more into the melt flow of polymeric material, melt-spun filaments having different additive attributes may be produced on a continuous basis (i.e., without shutting down the spinning operation). The filaments may be included in yarns which are formed into carpet structures.Type: GrantFiled: March 3, 1997Date of Patent: November 10, 1998Assignee: BASF CorporationInventors: Frank R. Jones, Stanley A. McIntosh, Gary A. Shore, Karl H. Buchanan, David B. Ledford, Wayne S. Stanko, G. Daniel Gasperson, Charles F. Helms, Jr.
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Patent number: 5833893Abstract: Methods of continuously producing sequential lengths of different additive-containing melt-spun filaments include continuously supplying a melt-spinnable polymeric host material to orifices of a spinneret and controllably dosing at least one dispersible additive concentrate system containing a pigment in a liquid nonaqueous polymeric carrier to the melt flow of polymeric host material upstream of the spinneret orifices. In such a manner, a first polymeric mixture of the dispersible additive concentrate system and the polymeric host material is obtained which achieves an additive attribute. During a first time interval, the first mixture is extruded through the spinneret orifices; and thereafter, during a second subsequent time interval, the dosing of the at least one dispersible additive is changed so as to form a second mixture having a second additive attribute different from the first additive attribute while continuously supplying the melt flow of polymeric host material to the spinneret orifices.Type: GrantFiled: March 3, 1997Date of Patent: November 10, 1998Assignee: BASF CorporationInventors: Frank R. Jones, Stanley A. McIntosh, Gary W. Shore, Karl H. Buchanan, David B. Ledford, Wayne S. Stanko, G. Daniel Gasperson, Charles F. Helms, Jr.
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Patent number: 5800746Abstract: Nonaqueous additive systems which includes dispersant-coated pigments physically dispersed in a liquid nonaqueous polymeric carrier are added directly to a melt flow of a polymeric host material prior to spinning. The additive system is most preferably in the form of a particulate paste which can be added in metered amounts (dosed) to a melt flow of the polymeric host material prior to being spun into filaments. By providing a number of additive systems having a number of different additive attributes, and controllably dosing one or more into the melt flow of polymeric material, melt-spun filaments having different additive attributes may be produced on a continuous basis (i.e., without shutting down the spinning operation).Type: GrantFiled: March 3, 1997Date of Patent: September 1, 1998Assignee: BASF CorporationInventors: Frank R. Jones, Stanley A. McIntosh, Gary A. Shore, Karl H. Buchanan, David B. Ledford, Wayne S. Stanko, G. Daniel Gasperson, Charles F. Helms, Jr.