73 patents
Page 4 of 4
Utility
Wet press concrete slab manufacturing
11 May 20
The present invention provides a wet press process and admixture components for making concrete slabs (flags) (16), curb (kerb) units, panels, boards, and other flat shapes, whereby colloidal silica and at least one alkanolamine and optional rheology control components are employed to provide an ideal combination of pressing time, green strength, surface definition, stack-ability, final concrete strength, and permeability.
Klaus A. Rieder, David M. Hughes, Lukasz M. Marcinkowski
Filed: 5 Oct 15
Utility
Vapor Impermeable Flooring Underlayment
29 Apr 20
A water vapor impermeable flooring underlayment membrane of the present invention comprises a non-woven layer have first and second major faces, a first coating on the first major face of the non-woven layer, and, on the second major face, a water-vapor impermeable polymer layer, and a pressure sensitive adhesive layer partially coated on the polymer layer, the pressure sensitive partial coated adhesive layer being covered by a release liner.
Anandakumar Ranganathan, Robert A. Wiercinski, Jyoti Seth
Filed: 3 Jun 18
Utility
Expanding Nozzle for Component Additions In a Concrete Truck, and Method and System for Use of Same
1 Apr 20
A nozzle, including a support member and a nozzle boot surrounding at least a portion of the support member, the nozzle boot having a nozzle boot inlet and a nozzle boot outlet spaced from the nozzle boot inlet and a volume between the nozzle boot inlet and the nozzle boot outlet, the nozzle boot being expandable upon the introduction of fluid into the volume, and collapsible upon withdrawal of fluid from the volume.
Andrew Fuller, John Aho, James Bleck, Mark F. Roberts
Filed: 20 May 18
Utility
Postponed onset of quicklime hydration
23 Mar 20
The present invention provides compositions and methods relative to controlling hydration onset of an alkaline earth metal oxide such as calcium oxide, comprising heating an inorganic alkaline earth metal oxide to sub-calcination temperatures in the presence of organic material comprising a carbohydrate, an amino-carboxylic acid, a hydroxycarboxylic acid, or a mixture thereof.
Byong-wa Chun
Filed: 13 Nov 16
Utility
Early strength enhancing concrete admixture
2 Mar 20
The present invention provides an admixture composition comprising a liquid suspension of colloidal silica, siloxane, and polycarboxylate polymer cement dispersant for enhancing early age strength, finishability, and other properties in hydratable cementitious compositions such as concrete (e.g., shotcrete).
Ezgi Yurdakul, Damla Boyer, Klaus-Alexander Rieder, Yohannes K. Lemma
Filed: 26 Jun 18
Utility
Method for Controlling Clay Impurities in Construction Aggregates and Cementitious Compositions
26 Feb 20
The present invention provides a method for treating clay-bearing aggregates, particularly those used for construction purposes, which involve introducing to clay-bearing aggregates an ion-exchanged polycondensate of dialkylamine and epichlorohydrin having anionic groups comprising both acetate and chloride ionic groups, wherein the acetate is present in an amount of 51-99 percent, and more preferably in the amount of 60-95 percent, based on molar concentration of the anionic groups, whereby chloride ionic groups are minimally present.
Lukasz DEBNY, Lawrence L. Kuo, Shuqiang Zhang, Arthur Kyriazis
Filed: 8 Mar 18
Utility
Early Strength Enhancement of Cements
19 Feb 20
A method of making a cement composition, comprising grinding a cement clinker and a strength-enhancing agent, thereby producing a hydraulic cementitious powder, wherein the strength-enhancing agent is present in the hydraulic cementitious powder in an amount of from 0.001% to 0.09% based on dry weight of the hydraulic cementitious powder.
Denise A. Silva, Josephine H. Cheung, David F. Myers, Byong-Wa Chun, Ernie Rocha, Wee Fuk Lai, Leslie J. Buzzell
Filed: 24 Oct 17
Utility
Grinding Stabilizing Additive for Vertical Roller Mills
12 Feb 20
Denise A. Silva, Josephine H. Cheung, David F. Myers, Byong-Wa Chun, Ernie Rocha, Wee Fuk Lai, Leslie J. Buzzell, Jeffrey Thomas, Joshua Detellis
Filed: 4 Jan 18
Utility
Controllable High Flow Concrete
12 Feb 20
The present invention relates to very high workable yet controllable concrete mix design, admixture composition, and process for placing concrete.
Elizabeth BURNS, Nathan A. TREGGER, Hideo KOYATA, Lawrence L. KUO, Klaus-Alexander RIEDER, Mark F. ROBERTS, David MYERS
Filed: 10 Oct 17
Utility
Efficient Formulation Stable Crude Glycerine Grinding Additive
12 Feb 20
Compositions and methods for grinding inorganic particles, such as cement, cement clinker, limestone, or other inorganic particles, involving a grinding efficiency enhancing additive comprising a crude glycerin byproduct, obtained through the use of heterogeneous catalyst processes in biodiesel fuel production.
Leslie AJ Buzzell, Dorota Kazmierczak, Josephine H. Cheung
Filed: 9 Aug 19
Utility
All-Weather Pressure-Sensitive Adhesive
12 Feb 20
The present invention provides a non-cured-in-place waterproofing pressure-sensitive adhesive having a microfibrillar additive for achieving ideal balance between sag resistance at elevated temperatures and good adhesion at low temperatures.
MD Nasim Hyder, Robert A. Wiercinski, Anandakumar Ranganathan, Jyoti Seth
Filed: 8 Aug 19
Utility
Fire retardant coating composition
25 Nov 19
A fire retardant, vapor impermeable coating composition is disclosed which is useful for protecting gypsum, wood, polyurethane, polystyrene, and other construction materials and surfaces, such as components for buildings.
Marysusan Couturier
Filed: 6 Apr 15
Utility
Waterless Integral Waterproofing
30 Oct 19
Described are admixture composition and method for integrally waterproofing cementitious compositions, such as concrete and mortar, wherein an organosilicon compound (e.g., silane) is mixed with animal oil, vegetable oil, or mixture thereof, and defoaming agent.
David T. Geary, Elizabeth Burns, Nathan A. Tregger
Filed: 29 Apr 19