United States Gypsum Company

Tremco Incorporated

Knauf Gips Kg

Robert H Negri

Rafael Bury

Pamela L Hargrove

Mark Miklosz

Guy Rosenthal

Michael Patrick Shake

James M Ullett

Pamela K Hernandez

David D Pelot

Timothy G Kenny

Salvatore Immordino

Dominic Cremona

Aaron St James

Casey Sovey

Brett R Link

Paula McKnight

Paul Shipp

Kristin Schulte

Bernie St James

Dante Marimpietri

Scottie Lee Stinson

Ellen Zerucha

Muneer Mohammad

Richard B Stevens

Christopher Robert Nelson

Peter M Attard

Elliot St James

Subhash S Deodhar

Samar Emami

John Jason Roxburgh

Salvatore C Immordino, Jr

Srinivas Veeramasuneni

Terry L Rosenstiel

Jeffrey F Grussing

Tyler Kincaid

Alexander J Donovan

Naveen Punati

Donghong Li

Kevin W Moyer, Jr

Thomas G Houman

Thomas M Haugeberg

Claudia B Hill

Tom Haugeberg

David J Pekarcik

Elliott St James

Jeffrey Samuel Zunk

Juan Carlos Ruiz Castaneda

Edgar R De La Rosa Cruz

Jorge A Garcia Torres

Miguel Gama Goicochea

Antonio Contreras

Juan Huitzil

Joseph Adcock

Paula Hajakian

Juan Carlos Ruiz Castañeda

Juan Carlos Ruiz CASTAÑEDA

Kevin W Moyer Jr

Christopher R Nelson

Pamela Hargrove

Paula Mcknight

Kevin W Moyer

A joint compound including calcium sulfate hemihydrate and/or at least one filler, wherein a total amount of the at least one filler and/or calcium sulfate hemihydrate is at least about 50 wt % of the joint compound on a dry (water-free) basis, preferably the filler comprises calcium carbonate, calcium sulfate dihydrate, or calcium sulfate anhydrite, or a mixture thereof; binder at up to about 15 wt % of the joint compound on a dry basis; polymer thickener at up to about 3 wt % of the joint compound on a dry basis; plasticizer dedusting agent at about 0.01 to about 3 wt % of the joint compound on a dry (water free) basis; and an additive up to about 10 wt % of the joint compound on a dry basis.

Plasticizer dedusting agents for joint compounds

Method of making foamed gypsum slurry having 15 to 90 volume percent gas bubbles including: passing first slurry including water and on dry basis 50 to 98 wt. % calcium sulfate hemihydrate, 1 to 50 wt. % calcium carbonate, and 0.1 to 10 wt. % cellulose thickener via a first hose to a Wye connector conduit first inlet opening at Rate C and passing alum solution via a second hose to a second inlet opening of the conduit at Rate D to create combined mixed stream passing from the conduit to a static mixer for mixing for Time 3 to activate at least a portion of the calcium carbonate and alum to generate COand create the foamed gypsum slurry; transferring the slurry from the mixer to a cavity between two wall boards via a third hose. Allowing the slurry in the cavity to expand, harden and dry.

Method for making a lightweight gypsum composition with internally generated foam and products made from same

An exterior sheathing cementitious panel which prevents water penetration and air leakage is provided. Methods for manufacturing exterior sheathing cementitious panels with a highly efficient integrated air/water barrier membrane are provided as well.

Exterior sheathing panel with integrated air/water barrier membrane

A joint tape to be applied to wallboard is provided and includes a base substrate having opposing sides. In certain embodiments, a first adhesive layer is applied to one of the sides of the base substrate and a second adhesive layer is applied to the first adhesive layer, where the first adhesive layer is different than the second adhesive layer. In certain other embodiments, two different adhesives are used in a single adhesive layer. In use, the joint tape is positioned over and removably secured to a joint or corner between adjacent wallboard panels using the first adhesive layer. After the joint tape is in position, joint compound is applied to the joint tape, and the water in the joint tape activates it to form a secure bond with the wallboard panels.

Drywall joint tape with dual purpose adhesive backing

A gap finishing tape for use with drywall applications includes a trim strip body extending along a central body axis, a hot melt adhesive extending along the central body axis, and a backing paper. The trim strip body includes a first surface, a second surface opposite the first surface, a first side, and a second side opposite the first side, and is at least partially constructed from a metallic material. The backing paper is at least partially secured to the second surface of the trim strip body. The trim strip body is at least partially embedded in the hot melt adhesive.

Heat-applied gap finishing tape

A non-swelling joint tape for use with drywall applications includes a tapered trim strip body extending along a central body axis and a non-swelling backing paper. The tapered trim strip body includes a first surface, a second surface opposite the first surface, a first side, and a second side opposite the first side, and is at least partially constructed from a first dimensionally stable material. The non-swelling backing paper is at least partially secured to the second surface of the tapered trim strip body and is at least partially constructed from a second dimensionally stable material. The tapered trim strip body is dimensioned such that a first thickness between the first surface and the second surface at the central body axis is greater than a second thickness between the first surface and the second surface at the first side and the second side.

Non-swelling reinforced drywall joint tape

A gypsum-based composition of calcium sulfate hemihydrate with (a) alum and calcium carbonate and/or (b) zeolite and sodium percarbonate for making foamed gypsum slurry. A method to make foamed gypsum slurry from the composition. A method to make foamed gypsum product from the composition. A cavity wall having a cavity filled with the foamed gypsum product.

A prefill tool for finishing wallboard joints is provided for finishing a wallboard joint, and includes a box assembly defining a hopper, having a top wall and a front wall constructed and arranged for engaging the wallboard joint. The front wall partially defines a gate dimensioned for dispensing joint compound stored in the hopper. Also, the gate is located on a skid plate mounted on the front wall, the skid plate having a main portion, and a gate portion partially defining the gate being displaced from a plane defined by the main portion.

Prefill tool for finishing wallboard joints

An automatic dispensing device for wallboard joint taping is provided, including a body for holding a supply of viscous material and having a rear end and an opposite front end, a spool assembly disposed on the body and configured for supporting a spool of tape; at least one drive roller positioned at the front end and receiving an end of the spool of tape. Certain embodiments include an adhesive application assembly connected to the drive roller and mounted in operational relationship to the front end for dispensing a measured amount of adhesive upon an upper surface of the tape upon rotation of the at least one drive roll. In such embodiments, the body may be configured for holding sufficient adhesive to cover tape advanced by at least 200 rotations of the at least one drive roller.

Automatic dispensing device for wallboard joint taping

Provided is an adhesive composition suitable for fortifying panel joints in construction, the adhesive composition comprising a polymeric binder, filler and thickener, wherein the binder is selected from acrylic acid polymers, acrylic acid copolymers, alkyds, polyurethanes, polyesters, epoxies, and combinations thereof and wherein the viscosity of the composition is the range from 100 to 200 Brabender Units and density is in the range from about 7.5 lbs/gal to about 10 lbs/gal. Methods of using the adhesive composition in wall assembly are provided as well.

Joint finishing adhesive

Provided are compositions and methods for expeditious wall installation by spray-applying a joint compound comprising a polymeric binder and hollow spheres.

Spray-applied joint compound, wall assembly, and methods and products related thereto

A drying type joint compound composition is provided, including: at least one binder, a filler and water, the water having a weight percentage in the range of 12-18% of the total weight of the composition.

Low water drying type joint compound

Growing community of inventors

Lake Villa, IL, United States of America

Robert H Negri