United States Gypsum Company

Other

Knauf Gips Kg

Charles J Miller

Richard B Stevens

Salvatore C Immordino, Jr

Therese A Espinoza

Tyler Kincaid

Paul H Neill

Salvatore C Immordino

Guy Rosenthal

Scott D Cimaglio

Jeffrey F Grussing

Lee K Yeung

Michael R Lynn

Peter M Attard

Joshua D Sheldon

Nancy L Bernicke-Grussing

Frank A Wawrzos

Brett R Link

Joseph W Schlude

Therese A Fults

Friedrich Failmezger

Charles D Byers

Aida L Carbo

David Pickles

Scott A Cimaglio

John D Halm

Guy L Rosenthal

Ronald E Schenck

David Martin Pickles

A joint compound system includes a set-inhibited, pre-wetted, setting-type, ready-mix joint compound and a set initiator. The set-inhibited, pre-wetted, setting-type joint compound includes a ready-mixed, setting-type joint compound base with a calcium-free phosphate set preventing agent that impedes chemical hydration of a gypsum component of the setting-type joint compound. The joint compound base is free of calcium carbonate. The set initiator includes alum to reinitiate the chemical hydration reactions.

Snap-set, ready-mix joint compound

A ready-mixed setting type joint compound in which formation of gypsum seeds has been inhibited. A method for controlling a setting reaction by mixing a ready-mixed setting type joint compound with one or more metal ion control agents comprising aminopolycarboxylic acid and/or a salt thereof, and further mixing the setting type joint compound with one or more non-calcium phosphate compounds. The method may further comprise mixing the setting type joint compound with a set activator obtained by blending together a first set activator including a cadmium compound, lead compound and/or zinc compound and a second set activator including a ferrous compound, aluminum compound and/or manganese compound.

Joint compounds, activators and methods for setting a joint compound and preventing seed setting

The invention is directed to a joint tape for finishing a joint between boards having a nonwoven substrate that does not swell substantially in the presence of water. The invention further provides a method of finishing a joint between boards having the steps of (i) applying a joint tape of the invention to a joint between boards by embedding the joint tape in a first coat of joint compound, (ii) applying a second coat of joint compound over the tape, wherein step (ii) is carried out before the joint tape and joint compound applied in step (i) have substantially dried, and optionally (iii) applying a third fill or finish coat of joint compound over the tape, wherein step (iii) is carried out before the joint tape and second coat have substantially dried.

Nonwoven joint tape having low moisture expansion properties and method for using same

A joint compound system is provided including a main container of base joint compound; and an additive container isolated from the base joint compound and housing at least one and preferably multiple additive packages constructed and arranged so that the additive packages are protected from exposure to moisture prior to their ultimate mixing with the base joint compound.

Package for delivery of additives for powdered compositions

A method of making an identifiable gypsum-based building product, includes incorporating a suitable amount of an optically identifiable marker into the product to be sensed by a conventional detecting device; applying the product with the marker in a conventional manner in the course of building construction, creating a finished building product; and analyzing the finished building product and optically detecting the presence of the marker in real time onsite.

Fluorescent building product and related detection method

The invention is directed to a joint tape for finishing a joint between boards comprising a nonwoven substrate that does not swell substantially in the presence of water. The invention further provides a method of finishing a joint between boards comprising (i) applying a joint tape of the invention to a joint between boards by embedding the joint tape in a first coat of joint compound, (ii) applying a second coat of joint compound over the tape, wherein step (ii) is carried out before the joint tape and joint compound applied in step (i) have substantially dried, and optionally (iii) applying a third fill or finish coat of joint compound over the tape, wherein step (iii) is carried out before the joint tape and second coat have substantially dried.

A wallboard joint tape designed to cover a seam joint defined by joining adjacent sheets of wallboard includes an elongate length of tape being supplied as a rolled strip having a first side edge and a second side edge wrapped around a center member having a central opening. The strip has an upper side and an opposite lower side. A lengthwise crease is provided along a centered longitudinal line of the lower side. A plurality of indicators is provided for marking at least one side edge of the tape for enhancing a proper orientation of the tape. The proper orientation of the tape is determined based on a location of the indicators upon the tape.

Wallboard joint tape having directional indicators

The invention provides a composition useful as a joint compound comprising water, a filler comprising one or more of calcium carbonate, calcium sulfate dihydrate or calcium sulfate hemihydrate, a binder and/or a biocide, wherein the composition after curing is formaldehyde-free.

Compositions suitable for use as joint compounds and related methods

At least one of these or other problems is reduced using a building material that is uniquely identifiable. A method of making an identifiable gypsum-based building product includes selecting a tagging material occurring naturally in a component of the building material and choosing a carrier substance having a high concentration of the tagging material. By selecting an amount of the carrier substance and adding it to the building material, a building product having a unique product characteristic is created. In a second embodiment of the invention, a second tagging material is combined with the first tagging material to create a unique product. In yet another embodiment of the invention, a supplemental amount of the tagging material is added to the gypsum-based composition in addition to the carrier substance. Some tagging materials are useful in a gypsum-based composition to produce a visual confirmation of the presence of the tagging material.

Tagged joint compound and method of identification

A well drilling system including: an annular valve; a well casing in fluid communication with the annular valve; a first check valve in fluid communication with the annular valve; a hydraulic cylinder including a first chamber having an inlet and an outlet, wherein the inlet of the first chamber is in fluid communication with an outlet of the first check valve; and a transfer unit including an inlet and an outlet, wherein the inlet of the transfer unit is in fluid communication with the outlet of the first chamber, the outlet of the transfer unit is in fluid communication with an inlet of a second check valve, and an outlet of the second check valve is in fluid communication with the annular valve.

Pressure balanced drilling system and method using the same

A rough-surfaced substrate, such as a fiberboard, is provided with a smoother surface by applying a coating comprising calcium sulfate hemihydrate which has been prevented from hydrating to gypsum by set preventer, and which sets when brought into contact with a set initiator, e.g. aluminum sulfate, preferably present on the surface of the substrate.

Substrate smoothed by coating with gypsum-containing composition and method of making

The joint compound of the present invention utilizes hollow resin microspheres with a mean particle size less than 75 microns and exhibiting no more than 1.5% increase in density under high shear stress testing.

Lightweight ready-mix joint compound

A joint compound composition comprising a filler, a binder and a hydrocarbon substituted sulfate, sulfonate, sulfuric acid or sulfonic acid is disclosed. The composition of the present invention produces a joint compound that shrinks less and is resistant to cracking and cratering.

Growing community of inventors

Johnsburg, IL, United States of America

Charles J Miller