Patent classifications
C04B24/20
Foamed Liquefiers in Gypsum Boards
The invention concerns a method for producing gypsum boards, wherein a liquefier for the gypsum slurry is foamed with gas to provide a foam having a water content of less than 85 wt.-%, then incorporated into a gypsum/water mixture and the mixture thus obtained is applied on a two dimensional substrate. The incorporation of the liquefier in foamed form allows for a significant reduction of the amount of liquefier required to provide a desired flowability of the gypsum/water mixture, thus allowing the production of gypsum boards with similar characteristics with less liquefier. The invention further concerns gypsum board prepared using this process, apparatuses for producing gypsum boards using this process and the use of a corresponding liquefier foam to minimize the amount of liquefier required to establish a desired flowability of a gypsum/water mixture.
Foamed Liquefiers in Gypsum Boards
The invention concerns a method for producing gypsum boards, wherein a liquefier for the gypsum slurry is foamed with gas to provide a foam having a water content of less than 85 wt.-%, then incorporated into a gypsum/water mixture and the mixture thus obtained is applied on a two dimensional substrate. The incorporation of the liquefier in foamed form allows for a significant reduction of the amount of liquefier required to provide a desired flowability of the gypsum/water mixture, thus allowing the production of gypsum boards with similar characteristics with less liquefier. The invention further concerns gypsum board prepared using this process, apparatuses for producing gypsum boards using this process and the use of a corresponding liquefier foam to minimize the amount of liquefier required to establish a desired flowability of a gypsum/water mixture.
MASONRY BASED MATERIALS WITH ANTI ODOR AND MICROBIAL CHARACTERISTICS
Antimicrobial and odor control masonry-based material compositions used to form a structure or surface include a base material and a halo active aromatic sulfonamide compound of Formula (I):
##STR00001##
wherein the variables R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, X, M and n are disclosed herein. The compositions and processes utilizing the same can be used to form surfaces and structures that maintain antimicrobial and odor-controlling properties over extended time periods.
MASONRY BASED MATERIALS WITH ANTI ODOR AND MICROBIAL CHARACTERISTICS
Antimicrobial and odor control masonry-based material compositions used to form a structure or surface include a base material and a halo active aromatic sulfonamide compound of Formula (I):
##STR00001##
wherein the variables R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, X, M and n are disclosed herein. The compositions and processes utilizing the same can be used to form surfaces and structures that maintain antimicrobial and odor-controlling properties over extended time periods.
MASONRY BASED MATERIALS WITH ANTI ODOR AND MICROBIAL CHARACTERISTICS
Antimicrobial and odor control masonry-based material compositions used to form a structure or surface include a base material and a halo active aromatic sulfonamide compound of Formula (I):
##STR00001##
wherein the variables R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, X, M and n are disclosed herein. The compositions and processes utilizing the same can be used to form surfaces and structures that maintain antimicrobial and odor-controlling properties over extended time periods.
METHODS FOR MAKING POLY(OXYALKYLENE) ACRYLIC POLYMERS AT HIGH SOLIDS AND LOW VISCOSITY
The present invention provides methods of making an aqueous composition comprising polymerizing in the presence of one or more initiators at a pH of from 1 to 5 an aqueous monomer mixture of an aqueous medium and one or more acrylic or vinyl macromonomers containing an oxyalkylene chain group in the presence of one or more carboxylic acid group containing fluids chosen from a copolymerizable ethylenically unsaturated carboxylic acid, a polymeric polycarboxylic acid and mixtures thereof, to form a brush polymer-containing oxyalkylene side chain groups, wherein, the polymerizing takes place at a solids content ranging from 8 to 60 wt.%, and, combining one or more aromatic cofactors with the aqueous composition. In addition, the present invention provides aqueous compositions of brush polymers containing oxyalkylene side chain groups having more than one phase domain and a substantially reduced viscosity to enable processing with far less energy input or water waste.
METHODS FOR MAKING POLY(OXYALKYLENE) ACRYLIC POLYMERS AT HIGH SOLIDS AND LOW VISCOSITY
The present invention provides methods of making an aqueous composition comprising polymerizing in the presence of one or more initiators at a pH of from 1 to 5 an aqueous monomer mixture of an aqueous medium and one or more acrylic or vinyl macromonomers containing an oxyalkylene chain group in the presence of one or more carboxylic acid group containing fluids chosen from a copolymerizable ethylenically unsaturated carboxylic acid, a polymeric polycarboxylic acid and mixtures thereof, to form a brush polymer-containing oxyalkylene side chain groups, wherein, the polymerizing takes place at a solids content ranging from 8 to 60 wt.%, and, combining one or more aromatic cofactors with the aqueous composition. In addition, the present invention provides aqueous compositions of brush polymers containing oxyalkylene side chain groups having more than one phase domain and a substantially reduced viscosity to enable processing with far less energy input or water waste.
Concrete repair coating
A concrete and asphalt repair coating formulation includes a cement component and an aggregate component. The cement component includes a calcium sulfoaluminate cement and a Portland cement. The aggregate component includes coarse aggregates between 125-500 microns in diameter and fine aggregates between 5-62.5 microns in diameter.
Concrete repair coating
A concrete and asphalt repair coating formulation includes a cement component and an aggregate component. The cement component includes a calcium sulfoaluminate cement and a Portland cement. The aggregate component includes coarse aggregates between 125-500 microns in diameter and fine aggregates between 5-62.5 microns in diameter.
Cement activator composition for treatment of subterranean formations
Various embodiments disclosed relate to cement activator compositions for treatment of subterranean formations. In various embodiments, the present invention provides a method of treating a subterranean formation including placing in the subterranean formation a liquid cement activator composition including water, an alkali sulfate salt, a polyphosphate salt, and a stabilizer polymer.