Abstract: Removable flooring, which can be peeled from a flooring substrate is prepared by applying to an adhesive layer attached to the surface of a flooring substrate a particulate material followed by application of a cross-linkable or curable polymer composition, or by applying to the adhesive layer a slurry comprising the particulate material and the cross-linkable or curable polymer composition. The cross-linkable or curable polymer composition surrounds the particulate material and adheres to the adhesive layer to provide, upon cure, a coherent, flooring layer comprising the adhesive, particular material and cured polymer which can be peeled from the underlying flooring substrate as a single substrate.
Type:
Application
Filed:
March 23, 2019
Publication date:
February 24, 2022
Applicant:
Dur-A-Flex, Inc.
Inventors:
Ming Zhao, Kyle Sanford Smith, Murty Venkata Bhamidipati, Michael Joseph Schatz, David Royston Hughes
Abstract: According to some embodiments, a system and method for dispensing a floor coating in a specified ratio of multiple components is disclosed. The system and method may set and maintain a desired ratio of the multiple components by controlling, with a controller, a drive rate of respective pumps configured for propelling the components from a reservoir to a mixer or a dispenser. The controller may be responsive to at least one of a measured actual drive rate, an environmental condition, an actual usage of each component, and an operational parameter of the system, for adjusting a drive rate of the respective pumps to compensate for discrepancies that may affect the ratio of the multiple components.
Type:
Application
Filed:
August 23, 2019
Publication date:
October 28, 2021
Applicant:
Dur-A-Flex, Inc.
Inventors:
Kyle Sanford Smith, Murty Venkata Bhamidipati, David Royston Hughes, Robert S. Smith, Peter V. Ferris, Daniel R. Allen, Charles R. Sperry, David M. Kroll
Abstract: A low odor, fast curing composition coating composition with improved safety and mechanical properties, which cures readily under ambient conditions comprises a) a reactive polymer, oligomer or prepolymer having pendant acrylate or methacrylate groups, b) low odor acrylate or methacrylate monomers, c) an acrylate or methacrylate crosslinker, d) an isocyanate crosslinker, e) a thermal or photo active initiator, and optionally a reactive diluent and/or bead polymer. The composition is cured through multiple pathways, e.g., peroxide initiated radical curing and urethane step chain polymerization. Flooring and other construction materials coated with the composition are also provided.
Type:
Grant
Filed:
July 24, 2016
Date of Patent:
April 9, 2019
Assignee:
Dur-A-Flex Inc.
Inventors:
Ming Zhao, David Royston Hughes, Murty Venkata Bhamidipati, Kyle Sanford Smith, Ronald Joseph Phillips
Abstract: Waterborne polyurethane coating compositions comprising a polyol, an isocyanate crosslinker, and a small amount of thermoplastic microfibers, e.g., polyolefin microfibers, having a length of less than 1 mm, exhibit a much less sag, roller lines and other surface imperfections upon application to a substrate, in particular a vertical substrate such as a wall, than analogous water borne polyurethane compositions that lack the microfibers.
Type:
Grant
Filed:
December 1, 2016
Date of Patent:
July 31, 2018
Assignee:
Dur-A-Flex, Inc.
Inventors:
Ming Zhao, Murty Venkata Bhamidipati, Clay Carrington, David Royston Hughes
Abstract: A UV or thermally curable, low odor, liquid coating composition, which readily applied at room temperature without heating comprising: a) a reactive acrylic based polymer comprising pendant acrylate or methacrylate groups; b) reactive unsaturated monomers, typically acrylic or methacrylic monomers, often polyfunctional monomers; c) a thermal or UV activated radical initiator; and in many embodiments, d) an inert and non-polar wax or viscous oil, e.g., a paraffinic material, and e) optionally a tertiary amine, for example, a tertiary amine accelerator used with a thermally activated radical initiator. Also provided are substrates coated with the composition of the invention, for example, flooring coated with the inventive composition.
Type:
Grant
Filed:
December 29, 2014
Date of Patent:
May 23, 2017
Assignee:
Dur-A-Flex, Inc.
Inventors:
Ming Zhao, David Royston Hughes, Murty Venkata Bhamidipati
Abstract: A UV or thermally curable, low odor, liquid coating composition, which readily applied at room temperature without heating comprising: a) a reactive acrylic based polymer comprising pendant acrylate or methacrylate groups; b) reactive unsaturated monomers, typically acrylic or methacrylic monomers, often polyfunctional monomers; c) a thermal or UV activated radical initiator; and in many embodiments, d) an inert and non-polar wax or viscous oil, e.g., a paraffinic material, and e) optionally a tertiary amine, for example, a tertiary amine accelerator used with a thermally activated radical initiator. Also provided are substrates coated with the composition of the invention, for example, flooring coated with the inventive composition.
Type:
Application
Filed:
December 29, 2014
Publication date:
July 9, 2015
Applicant:
Dur-A-Flex, Inc.
Inventors:
Ming Zhao, David Royston Hughes, Murty Venkata Bhamidipati