United States Gypsum Company

University of Illinois

Alexander J Donovan

Joseph W Schlude

Salvatore C Immordino, Jr

Tyler Kincaid

Naveen Punati

Richard B Stevens

Robert H Negri

Jeffrey F Grussing

Pamela L Hargrove

David D Pelot

Ying Liu

Christian Huch

Joint compounds and spackling compounds which comprise a sanding indicator, the compounds displaying a first color at the surface upon drying/hardening. Methods for finishing a substrate or patching a substrate, the methods comprise applying the joint compound which comprises the sanding indicator and/or the spackling compound which comprises the sanding indicator and sanding the dried/hardened compound until the first color is removed. Accessory products which comprise at least one sanding indicator and methods for making joint compounds and spackling compounds comprising the sanding indicator.

Indicator for the sanding of joint compounds and spackles

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

A snap-setting joint compound with reduced calcium sulfate hemihydrate and improved sandability, as well as methods for building wall assemblies and repairing walls with the joint compound.

Setting type joint compound compositions with reduced plaster

A building construction product comprising an ionochromic dye, wherein the building construction product has a first color when the product comprises water, wherein the first color is dependent on the presence of metal ions in solution in the product; and wherein the product has a second color when the product has solidified. Methods of monitoring setting and drying reactions of building construction products, including setting-type and drying-type joint compounds and plasters.

Joint compounds and plasters with a complexometric dye and methods

Artificial dense granules composed of a sterically stabilized liposome shell encapsulating a polyphosphate nanoparticle core are provided as are methods for their production and use in the treatment of a severe hemorrhagic event.

Artificial platelets for treating catastrophic bleeding

A drying-type joint compound, a setting-type joint compound, and/or a ready-mixed, setting-type joint compound can include a phospholipid dedusting agent. For example, a drying-type joint compound can include: (a) a primary filler at 50 weight percent (wt %) to 98 wt % on a dry basis, wherein the primary filler includes one of calcium carbonate, calcium sulfate dihydrate, and talc, and a mixture thereof (b) a secondary filler at up to 25 wt % on a dry basis; (c) a binder at 1 wt % to 15 wt % on a dry basis; (d) a polymer thickener at 0.05 wt % to 3 wt % on a dry basis; (e) a phospholipid dedusting agent at 0.01 wt % to 3 wt % on a dry basis; (f) an additive up to 10 wt % o on a dry basis; and (g) water at a weight ratio of water to dry components of 1:6 to 2:1.

Phospholipid dedusting agents for joint compounds

Ceiling tiles and wallboards can be produced with vesicle dedusting agent. For example, a ceiling tile can comprise: a dried base mat that includes: (a) mineral wool; (b) binder; (c) a vesicle dedusting agent at about 0.01 to about 10 wt %, wherein the vesicle dedusting agent comprises vesicles; (d) optionally cellulosic fiber; (e) optionally perlite; (f) optionally glass fiber; and (g) optionally calcium sulfate dihydrate. For example, a wallboard produced from a slurry comprising: (a) calcium sulfate hemihydrate at 70 to 95 wt %; (b) a vesicle dedusting agent at about 0.01 to about 10 wt %, wherein the vesicle dedusting agent comprises vesicles; (c) optionally cellulose fibers at about 0.5 to about 3 wt %; (d) optionally at least one dispersant at about 0.01 to about 2 wt %; and (e) water at a ratio of water to dry components of about 1:6 to about 20:1.

Colloidal vesicles for use as dedusting agents in construction panels

A drying-type joint compound can comprise: (a) a primary filler at about 50 weight percent (wt %) to about 98 wt % on a dry basis, wherein the primary filler includes one member selected from the group of calcium carbonate, calcium sulfate dihydrate, and talc, and a mixture thereof; (b) a secondary filler at up to about 25 wt % on a dry basis; (c) a binder at about 1 wt % to about 15 wt % on a dry basis; (d) a polymer thickener at about 0.05 wt % to about 3 wt % on a dry basis; (e) a vesicle dedusting agent at about 0.01 wt % to about 10 wt % on a dry basis, wherein the vesicle dedusting agent comprises vesicles; and (f) an additive up to about 10 wt % o on a dry basis; and (g) water at a ratio of water to dry components of about 1:6 to about 3:1.

Growing community of inventors

Lake Forest, IL, United States of America

Alexander J Donovan