Patents by Inventor Klaus-Alexander Rieder
Klaus-Alexander Rieder 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: 6758897Abstract: Synthetic polymer reinforcing fibers provide dispersability and strength in matrix materials such as concrete, masonry, shotcrete, and asphalt. The individual fiber bodies, substantially free of stress fractures and substantially non-fibrillatable, have generally quadrilateral cross-sectional profiles along their elongated lengths.Type: GrantFiled: December 11, 2002Date of Patent: July 6, 2004Assignee: W. R. Grace & Co.-Conn.Inventors: Klaus-Alexander Rieder, Neal S. Berke, Michael B. Macklin, Anandakumar Ranganathan
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Publication number: 20040018358Abstract: Exemplary mechanically-flattened fibers of the invention comprise generally elongate bodies having varied width or thickness dimensions and micro-diastrophic surface deformities. Preferred fibers are elongate synthetic polymer or multipolymer blend fibers for reinforcing matrix materials such as concrete, shotcrete, gypsum-containing materials, asphalt, plastic, rubber, and other matrix materials. Preferred methods for manufacturing such fibers comprise subjecting synthetic polymer fibers to compressive forces sufficient to achieve flattening and surface micro-diastrophism without substantially shredding and abrading the fibers. Further exemplary fibers and methods involve mechanically-flattening intertwined or braided fibers or fiber bundles, thereby providing fibers having physical impressions thereon of the intertwinement or braiding and, optionally though preferably of micro-diastrophic surface deformities.Type: ApplicationFiled: July 21, 2003Publication date: January 29, 2004Applicant: W.R. GRACE & CO.-CONN.Inventors: Klaus-Alexander Rieder, Neal S. Berke, Stephen J. Fyler, Michael Macklin
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Publication number: 20030157320Abstract: Synthetic polymer reinforcing fibers provide dispersability and strength in matrix materials such as concrete, masonry, shotcrete, and asphalt. The individual fiber bodies, substantially free of stress fractures and substantially non-fibrillatable, have generally quadrilateral cross-sectional profiles along their elongated lengths. Preferred fibers and matrix materials having such fibers demonstrate excellent finishability in addition to dispersion and toughness properties.Type: ApplicationFiled: March 5, 2003Publication date: August 21, 2003Applicant: W.R. Grace & Co.-Conn.Inventors: Klaus-Alexander Rieder, Neal S. Berke, Michael B. Macklin, Anandakumar Ranganathan, Saleh Altoubat
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Patent number: 6596210Abstract: Preferred methods for manufacturing such fibers involve subjecting synthetic polymer fibers to compressive forces sufficient to achieve flattening and surface micro-diastrophism without substantially shredding and abrading the fibers.Type: GrantFiled: August 6, 2001Date of Patent: July 22, 2003Assignee: W. R. Grace & Co.-Conn.Inventors: Klaus-Alexander Rieder, Neal S. Berke, Stephen J. Fyler, Michael Macklin
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Patent number: 6592790Abstract: Preferred methods for manufacturing such fibers involve subjecting synthetic polymer fibers to compressive forces sufficient to achieve flattening and surface micro-diastrophism without substantially shredding and abrading the fibers.Type: GrantFiled: April 11, 2001Date of Patent: July 15, 2003Assignee: W. R. Grace & Co.-Conn.Inventors: Klaus-Alexander Rieder, Neal S. Berke, Stephen J. Fyler
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Publication number: 20030116063Abstract: The invention relates to fiber compositions that can be pumped and metered in the fashion of fluid chemical admixtures into a concrete mix, thereby enabling the fibers to be dispensed by concrete ready-mix plant operators who can provide verification of fiber administration and dosage. The fibers, particularly plastic shrinkage control fibers having large cumulative surface area, are suspended in an aqueous medium such that their surface area is already wetted out, thereby virtually assuring that substantial uniform fiber dispersion can be achieved without clumping and the delay that is usually required by fiber intermixing.Type: ApplicationFiled: February 6, 2003Publication date: June 26, 2003Applicant: W.R. GRACE & CO.-CONN.Inventors: Michael B. Macklin, Anandakumar Ranganathan, Klaus-Alexander Rieder
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Patent number: 6569525Abstract: Synthetic polymer reinforcing fibers provide dispersability and strength in matrix materials such as concrete, masonry, shotcrete, and asphalt. The individual fiber bodies, substantially free of stress fractures and substantially non-fibrillatable, have generally quadrilateral cross-sectional profiles along their elongated lengths.Type: GrantFiled: April 25, 2001Date of Patent: May 27, 2003Assignee: W. R. Grace & Co.-Conn.Inventors: Klaus-Alexander Rieder, Neal S. Berke, Michael B. Macklin, Anandakumar Ranganathan
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Patent number: 6569233Abstract: The invention relates to fiber compositions that can be pumped and metered in the fashion of fluid chemical admixtures into a concrete mix, thereby enabling the fibers to be dispensed by concrete ready-mix plant operators who can provide verification of fiber administration and dosage. The fibers, particularly plastic shrinkage control fibers having large cumulative surface area, are suspended in an aqueous or non-aqueous medium such that their surface area is already wetted out, thereby virtually assuring that substantial uniform fiber dispersion can be achieved without clumping and the delay that is usually required by fiber intermixing.Type: GrantFiled: September 25, 2001Date of Patent: May 27, 2003Assignee: W. R. Grace & Co.-Conn.Inventors: Michael B. Macklin, Anandakumar Ranganathan, Klaus-Alexander Rieder
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Patent number: 6569526Abstract: Synthetic polymer reinforcing fibers provide dispersability and strength in matrix materials such as concrete, masonry, shotcrete, and asphalt. The individual fiber bodies, substantially free of stress fractures and substantially non-fibrillatable, have generally quadrilateral cross-sectional profiles along their elongated lengths. Preferred fibers and matrix materials having such fibers demonstrate excellent finishability in addition to dispersion and toughness properties.Type: GrantFiled: March 15, 2002Date of Patent: May 27, 2003Assignee: W. R. Grace & Co.-Conn.Inventors: Klaus-Alexander Rieder, Neal S. Berke, Michael B. Macklin, Anandakumar Ranganathan, Salah Altoubat
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Publication number: 20030082378Abstract: Synthetic polymer reinforcing fibers provide dispersability and strength in matrix materials such as concrete, masonry, shotcrete, and asphalt. The individual fiber bodies, substantially free of stress fractures and substantially non-fibrillatable, have generally quadrilateral cross-sectional profiles along their elongated lengths.Type: ApplicationFiled: December 11, 2002Publication date: May 1, 2003Applicant: W.R. GRACE & CO.-CONN.Inventors: Klaus-Alexander Rieder, Neal S. Berke, Michael B. Macklin, Anandakumar Ranganathan
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Publication number: 20030082376Abstract: Synthetic polymer reinforcing fibers provide dispersability and strength in matrix materials such as concrete, masonry, shotcrete, and asphalt. The individual fiber bodies, substantially free of stress fractures and substantially non-fibrillatable, have generally quadrilateral cross-sectional profiles along their elongated lengths.Type: ApplicationFiled: December 11, 2002Publication date: May 1, 2003Applicant: W.R. GRACE & CO.-CONN.Inventors: Klaus Alexander Rieder, Neal S. Berke, Michael B. Macklin, Anandakumar Ranganathan
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Publication number: 20030056694Abstract: The invention relates to fiber compositions that can be pumped and metered in the fashion of fluid chemical admixtures into a concrete mix, thereby enabling the fibers to be dispensed by concrete ready-mix plant operators who can provide verification of fiber administration and dosage. The fibers, particularly plastic shrinkage control fibers having large cumulative surface area, are suspended in an aqueous medium such that their surface area is already wetted out, thereby virtually assuring that substantial uniform fiber dispersion can be achieved without clumping and the delay that is usually required by fiber intermixing.Type: ApplicationFiled: September 25, 2001Publication date: March 27, 2003Inventors: Michael B. Macklin, Anandakumar Ranganathan, Klaus-Alexander Rieder
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Publication number: 20030056695Abstract: The invention relates to fiber compositions that can be pumped and metered in the fashion of fluid chemical admixtures into a concrete mix, thereby enabling the fibers to be dispensed by concrete ready-mix plant operators who can provide verification of fiber administration and dosage. The fibers, particularly plastic shrinkage control fibers having large cumulative surface area, are suspended in an aqueous or non-aqueous medium such that their surface area is already wetted out, thereby virtually assuring that substantial uniform fiber dispersion can be achieved without clumping and the delay that is usually required by fiber intermixing.Type: ApplicationFiled: March 29, 2002Publication date: March 27, 2003Applicant: W.R. GRACE & CO.-CONN.Inventors: Michael B. Macklin, Anandakumar Ranganathan, Klaus-Alexander Rieder, Ding Feng Shen, Michael Buchanan, Randall Fierke, Jessica Verrill, Donald Indge, David Agresti, Paul Westgate
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Patent number: 6503625Abstract: Exemplary mechanically-flattened fibers of the invention comprise generally elongate bodies having varied width or thickness dimensions and micro-diastrophic surface deformities. Preferred fibers are elongate synthetic polymer or multipolymer blend fibers for reinforcing matrix materials such as concrete, shotcrete, gypsum-containing materials, asphalt, plastic, rubber, and other matrix materials. Preferred methods for manufacturing such fibers comprise subjecting synthetic polymer fibers to compressive forces sufficient to achieve flattening and surface micro-diastrophism without substantially shredding and abrading the fibers. Further exemplary fibers and methods involve mechanically-flattening intertwined or braided fibers or fiber bundles, thereby providing fibers having physical impressions thereon of the intertwinement or braidingand, optionally though preferably of micro-diastrophic surface deformities.Type: GrantFiled: June 30, 2000Date of Patent: January 7, 2003Assignee: W.R. Grace & Co. - Conn.Inventors: Klaus-Alexander Rieder, Neal S. Berke, Stephen J. Fyler, Michael Macklin
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Publication number: 20020182406Abstract: Synthetic polymer reinforcing fibers provide dispersability and strength in matrix materials such as concrete, masonry, shotcrete, and asphalt. The individual fiber bodies, substantially free of stress fractures and substantially non-fibrillatable, have generally quadrilateral cross-sectional profiles along their elongated lengths.Type: ApplicationFiled: April 25, 2001Publication date: December 5, 2002Inventors: Klaus-Alexander Rieder, Neal S. Berke, Michael B. Macklin, Anandakumar Ranganathan
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Publication number: 20020182408Abstract: Synthetic polymer reinforcing fibers provide dispersability and strength in matrix materials such as concrete, masonry, shotcrete, and asphalt. The individual fiber bodies, substantially free of stress fractures and substantially non-fibrillatable, have generally quadrilateral cross-sectional profiles along their elongated lengths. Preferred fibers and matrix materials having such fibers demonstrate excellent finishability in addition to dispersion and toughness properties.Type: ApplicationFiled: March 15, 2002Publication date: December 5, 2002Applicant: W.R. Grace & Co.-Conn.Inventors: Klaus-Alexander Rieder, Neal S. Berke, Michael B. Macklin, Anandakumar Ranganathan, Salah Altoubat
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Patent number: 6348093Abstract: Exemplary packaging of the invention can be introduced in a sealed form directly into a mixer, whereby, upon agitation of the mixer, a cemenititous binder, an admixture or admixtures, and/or fibers can be released to make or modify, in the mixer, a castable cementitious composition within which the packaging material, which is made of a non-water-soluble, basic-medium-soluble polymeric material, can disappear from sight.Type: GrantFiled: April 27, 2000Date of Patent: February 19, 2002Assignee: W. R. Grace & Co. - ConnInventors: Klaus-Alexander Rieder, William J. Hurley, Jr., Anandakumar Ranganthan, Michael B. Macklin
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Patent number: 6340522Abstract: Exemplary fibers of the invention, useful for reinforcing hydratable cementitious materials such as concrete and mortar, have three-dimensional twist curvatures. Preferably, the fibers are flat or flattened and have first and second opposed flat or flattened ends that are twisted out of phase, and which preferably define therebetween an intermediate elongate fiber body having a curvature in more than one direction. Processes of the invention comprise forming a fiber with a three-dimensional twisted shape by twisting at least two fibers together to form a twisted fiber bundle to impart a twist curvature into the fiber material. The twisted fiber bundle can then be cut into separate fibers or stored on bobbins for shipment to another location for cutting. Advantages of the invention include enhanced dispersibility of the fibers in hydratable cementitious compositions.Type: GrantFiled: July 13, 2000Date of Patent: January 22, 2002Assignees: WR Grace & Co.-Conn., Atlantic Fiber Technologies LimitedInventors: Sean Burke, Michael B. Macklin, Klaus-Alexander Rieder, Jean-François Trottier
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Publication number: 20010051266Abstract: Exemplary mechanically-flattened fibers of the invention comprise generally elongate bodies having varied width or thickness dimensions and micro-diastrophic surface deformities. Preferred fibers are elongate synthetic polymer or multipolymer blend fibers for reinforcing matrix materials such as concrete, shotcrete, gypsum-containing materials, asphalt, plastic, rubber, and other matrix materials. Preferred methods for manufacturing such fibers comprise subjecting synthetic polymer fibers to compressive forces sufficient to achieve flattening and surface micro-diastrophism without substantially shredding and abrading the fibers. Further exemplary fibers and methods involve mechanically-flattening intertwined or braided fibers or fiber bundles, thereby providing fibers having physical impressions thereon of the intertwinement or braidingand, optionally though preferably of micro-diastrophic surface deformities.Type: ApplicationFiled: August 6, 2001Publication date: December 13, 2001Applicant: W.R. GRACE & CO.-CONN.Inventors: Klaus-Alexander Rieder, Neal S. Berke, Stephen J. Fyler, Michael Macklin
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Publication number: 20010023019Abstract: Exemplary mechanically-flattened fibers of the invention comprise generally elongate bodies having varied width or thickness dimensions and micro-diastrophic surface deformities. Preferred fibers are elongate synthetic polymer or multipolymer blend fibers for reinforcing matrix materials such as concrete, shotcrete, gypsum-containing materials, asphalt, plastic, rubber, and other matrix materials. Preferred methods for manufacturing such fibers comprise subjecting synthetic polymer fibers to compressive forces sufficient to achieve flattening and surface micro-diastrophism without substantially shredding and abrading the fibers.Type: ApplicationFiled: April 11, 2001Publication date: September 20, 2001Applicant: W.R. GRACE & CO.-CONN.Inventors: Klaus-Alexander Rieder, Neal S. Berke, Stephen J. Fyler