Patents Represented by Attorney William L. Baker
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Patent number: 6816791Abstract: A novel methodology for rapid, cost-efficient discovery, identification, or improvement of additives and/or admixtures for hydratable cementitious compositions. Multiple formulations comprising hydratable cementitious compositions are deposited into a plurality of receptacles. A first assay output is obtained, such as through x-ray diffraction, which is then correlated to provide a second assay output value corresponding to physical or chemical properties of the cementitious compositions.Type: GrantFiled: October 15, 2002Date of Patent: November 9, 2004Assignee: W. R. Grace & Co.-Conn.Inventors: David F. Myers, Felek Jachimowicz, Joanna D. Blanchard, Neal S. Berke, Josephine H. Cheung, Paul J. Sandberg, Frank G. Serafin, Peter V. Coveney
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Patent number: 6808560Abstract: 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: GrantFiled: February 6, 2003Date of Patent: October 26, 2004Assignee: W. R. Grace & Co.-Conn.Inventors: Michael B. Macklin, Anandakumar Ranganathan, Klaus-Alexander Rieder
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Patent number: 6806313Abstract: An exemplary erucamide-free composition for making container closures or closure sealants includes a matrix polymer, a silicone lubricant such as poly(dimethyl) siloxane, and a slip aid comprising a saturated amide, oxidized polyethylene, or combination thereof.Type: GrantFiled: March 5, 2003Date of Patent: October 19, 2004Assignee: W. R. Grace & Co.-Conn.Inventor: Marysusan Couturier
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Patent number: 6800129Abstract: Exemplary liquid cement additive compositions have high solids loading which includes alkali or alkaline earth metal salts and other cement additive components. The liquid carrier is preferably aqueous in nature, although non-aqueous carriers are possible, and the carrier is modified using a viscosity modifying agent and dispersant to help load salt and other solids in high level amounts. Thus, methods for making the liquid cement additive compositions are also disclosed.Type: GrantFiled: January 30, 2003Date of Patent: October 5, 2004Assignee: W. R. Grace & Co.-Conn.Inventors: Leslie A. Jardine, David F. Myers, Anandakumar Ranganathan
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Patent number: 6793441Abstract: A tunnel waterproofing method comprises spraying a primary coating of concrete onto the excavation surface of a tunnel, installing thereon a waterproofing sheet having an adhesive layer operative to bond with concrete, and spraying a secondary coating of concrete against the adhesive side of the waterproofing sheet. Preferably, a buffer water conducting sheet is established between the primary concrete coating sprayed onto the excavation surface and the waterproofing sheet.Type: GrantFiled: December 5, 2002Date of Patent: September 21, 2004Assignee: W. R. Grace & Co.-Conn.Inventors: Sachio Shimizu, Keiichi Kosuge
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Patent number: 6790275Abstract: 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: March 29, 2002Date of Patent: September 14, 2004Assignee: 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: 6783345Abstract: The invention provides methods, systems, and devices for installing barriers in openings or gaps in or between structures such as walls, ceilings, and floors. At least one barrier molding bag is positioned in the hole or gap, and a flowable firestop material that is preferably operative to cure or harden, such as a hydratable cementitious slurry, is introduced into the bag to create a barrier in the hole or gap.Type: GrantFiled: May 20, 2002Date of Patent: August 31, 2004Assignee: W.R. Grace & Co.-ConnInventors: Michael D. Morgan, Xiudong Sun, Laura A. Tennenhouse, Robert A. Wiercinski, Benita Dair, Antonio J. Aldykiewicz, Jr., Leon Bablouzian, Lawrence Shapiro, William J. Hurley, Jr.
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Patent number: 6773646Abstract: 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: July 21, 2003Date of Patent: August 10, 2004Assignee: W. R. Grace & Co.-Conn.Inventors: Klaus-Alexander Rieder, Neal S. Berke, Stephen J. Fyler, Michael Macklin
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Patent number: 6767164Abstract: A tunnel waterproofing construction method that avoids dripping and fogging during spray application, organic solvents, unpleasant odors, and cracking, while providing workability, superior tunnel waterproofing characteristics, and economic advantage. A primary spray cement concrete is sprayed onto the excavated tunnel surface, and an ambient-temperature vulcanization-type rubber emulsion is sprayed onto the primary concrete, thereby forming a rubber film, and a secondary concrete coating is then established on the rubber surface. The primary spray cement concrete may be used to even out the irregular earthen excavation surface, and a drainage layer may be used along with the primary spray cement concrete surface.Type: GrantFiled: December 5, 2002Date of Patent: July 27, 2004Assignee: W. R. Grace & Co.-Conn.Inventors: Sachio Shimizu, Keiichi Kosuge
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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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Patent number: 6698146Abstract: The invention provides methods, systems, and devices for installing thermal barriers in openings or gaps in or between structures such as walls, ceilings, and floors. At least one thermal barrier molding bag is positioned in the hole or gap, and a flowable firestop material that is operative to cure or harden, such as a hydratable cementitious slurry, is introduced into the bag to mold a barrier in the hole or gap.Type: GrantFiled: October 31, 2001Date of Patent: March 2, 2004Assignee: W. R. Grace & Co.-Conn.Inventors: Michael D. Morgan, Xiudong Sun, Laura A. Tennenhouse, Robert A. Wiercinski, Benita Dair, Antonio J. Aldykiewicz, Jr., Leon Bablouzian, Lawrence Shapiro
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Patent number: 6689460Abstract: An exemplary primer/membrane package system comprises (a) a membrane comprising a carrier sheet and a pressure-sensitive adhesive thereon; and (b) an aqueous dispersion primer composition operative to promote adhesion between a construction surface and the membrane. The primer composition comprises at least two of an acetate, maleate, and acrylate, and has a viscosity of 200-2000 cp and more preferably 400-800 cp (Brookfield/#5 spindle/50 rpm, 25° C).Type: GrantFiled: June 14, 2001Date of Patent: February 10, 2004Assignee: W. R. Grace & Co.-Conn.Inventors: Jianye Wen, Frederick M. Drauschke, Salvador Crespo
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Patent number: 6670415Abstract: In the preparation of aqueous cement compositions containing a plasticizer, such as an EO/PO polymer-containing plasticizer, or EO/PO comb polymer-containing plasticizer, and further containing clay, such as a smectite clay, which expands when in contact with water, the step of providing an agent operative to modify the clay whereby the plasticizer absorbing capability of the clay is reduced. In exemplary methods of the invention, the plasticizer is an EO/PO (e.g., oxyalkylene) plasticizer and preferably an EO/PO comb polymer, and the clay-activity-modifying agent may comprise an inorganic cation, an organic cation, a polar organic molecule capable of being absorbed by the clay, a clay dispersant (such as a polyphosphate), or a mixture thereof. For clay-activity-modifying agents which comprise a cation or a polar organic molecule, the agent is preferably added to the clay before water is introduced to the clay.Type: GrantFiled: November 6, 2001Date of Patent: December 30, 2003Assignee: W. R. Grace & Co.-Conn.Inventors: Leslie A. Jardine, Hideo Koyata, Kevin J. Folliard, Chia-Chih Ou, Felek Jachimowicz, Byong-Wa Chun, Ara A Jeknavorian, Christon L. Hill
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Patent number: 6648962Abstract: Substantially hydrated cementitious particulates useful for delivering admixtures and additives into adhesives, coatings, paints, and other matrix compositions such as cement, concrete, masonry, mortar, fireproofing, shotcrete, and others. Preferred embodiments include intermixing at least one admixture, water, and hydratable cementitious binder to provide a substantially hydrated hardened mass and comminuting the hardened mass into particulates. Alternatively, or in addition, one or more admixtures may be coated onto the external surface area of the particulates, which are microscopically granulosic, to provide accurate and high level loading.Type: GrantFiled: September 6, 2001Date of Patent: November 18, 2003Assignee: W. R. Grace & Co.-Conn.Inventors: Neal S. Berke, Antonio J. Aldykiewicz, Jr., Noah D. Budiansky, Arnon Bentur
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Patent number: 6641661Abstract: A method for improving early strength of cements, comprising introducing into a cement during the grinding thereof (a) at least one water reducer comprising a polyoxyalkylene polymer; (b) a sugar; (c) an alkali or alkaline earth metal chloride; and (d) an amine. Additives and cement compositions are also disclosed.Type: GrantFiled: January 30, 2002Date of Patent: November 4, 2003Assignee: W. R. Grace & Co.-Conn.Inventors: Leslie A. Jardine, Josephine H. Cheung, Walter M. Freitas
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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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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