Abstract: A dispersant composition for use in gypsum and/or cementitious compositions that includes, in combination, a polycarboxylate-based superplasticizer and a synergistically effective amount of an aluminum salt. The presence of the aluminum salt, such as aluminum chlorohydrate, improves the performance of the polycarboxylate-based superplasticizer.

Abstract: The present invention relates to cement dispersant that is a copolymerization product of a first monomer (A) comprising a carboxylic acid, a second monomer (B) comprising an alkoxylated allyl alcohol sulfate, and, optionally, a third monomer (C) comprising an alkoxylated allyl alcohol. The cement dispersant according to the invention provides improved slump life properties and water reduction properties in cement admixtures.

Abstract: The present invention relates to cement dispersant that is a copolymerization product of a first monomer (A) comprising a carboxylic acid, a second monomer (B) comprising an alkoxylated allyl alcohol sulfate, and, optionally, a third monomer (C) comprising an alkoxylated allyl alcohol. The cement dispersant according to the invention provides improved slump life properties and water reduction properties in cement admixtures.

Abstract: The present invention relates to cement dispersant that is a copolymerization product of a first monomer (A) comprising a carboxylic acid, a second monomer (B) comprising an alkoxylated allyl alcohol sulfate, and, optionally, a third monomer (C) comprising an alkoxylated allyl alcohol. The cement dispersant according to the invention provides improved slump life properties and water reduction properties in cement admixtures.

Abstract: The present invention provides a plaster composition that includes calcined gypsum and a naphthalene sulfonate-aldehyde condensate alkali salt polymer having a weight average molecular weight from about 17,000 to about 47,000. The present invention also provides a method of forming a plaster composition that includes belending calcined gypsum and a naphthalene sulfonate-aldehyde condensate alkali salt polymer having a weight average molecular weight from about 17,000 to about 47,000 together to form a dry blend and contacting the dry blend with water to form a hardenable aqueous slurry.

Abstract: The present invention provides a plaster composition that includes calcined gypsum and a naphthalene sulfonate-aldehyde condensate alkali salt polymer having a weight average molecular weight from about 17,000 to about 47,000. The present invention also provides a method of forming a plaster composition that includes belending calcined gypsum and a naphthalene sulfonate-aldehyde condensate alkali salt polymer having a weight average molecular weight from about 17,000 to about 47,000 together to form a dry blend and contacting the dry blend with water to form a hardenable aqueous slurry.

Abstract: The present invention provides a dispersant and foaming agent combination that is useful in the production of gypsum wallboard and other aqueous cementitious products, a method of forming a gypsum wallboard and a gypsum wallboard. The dispersant in the combination according to the invention is a naphthalene sulfonate-aldehyde condensate alkali salt polymer having a weight average molecular weight of from about 17,000 to about 47,000. The alkali is preferably an alkali metal and/or an alkaline earth metal. The aldehyde is preferably formaldehyde. The foaming agent used in the combination according to the invention is a soap, preferably an alkali salt of an alkyl ether sulfate and/or an alkyl sulfate. The combination of a high molecular weight dispersant and a foaming agent produces a gypsum wallboard core effect that more efficiently entrains air (i.e., creates void space), thereby lowering overall board weight without detrimentally affecting strength.

Abstract: The present invention provides a dispersant composition that is obtained by condensing an aldehyde, preferably formaldehyde, with a sulfonated middle fraction obtained from the distillation of coal tar. The middle fraction, prior to sulfonation, includes greater than 55% to about 95% by weight naphthalene and from about 5% to less than 45% by weight of a plurality of compounds selected from the group consisting of quinoline, indene, biphenyl, indane, acenaphthene, anthracene, phenanthrene, methyl naphthalene, cresol, phenol, xylenol, and tetralin. The condensation product is reacted with a base such as sodium hydroxide to form a salt polymer having a weight average molecular weight between about 2,000 and 40,000. Salt polymers formed in accordance with the method of the invention are useful as dispersants and plasticizers in aqueous cementitious slurries.

Abstract: A dispersant for use with concrete or cement, and a concrete or cement admixture that comprises a cementitious material, water, and the dispersant. The dispersant includes a polymeric derivative of carboxylic acid, and has a sulfur-containing moiety that is covalently bonded thereto. Adding the dispersant to the cementitious material and water improves the rheological properties of the admixture.

Abstract: The present invention provides a sulfonated coal tar distillate salt polymer that is a condensation product of an aldehyde, preferably formaldehyde, and a sulfonated middle fraction obtained during coal tar distillation. The middle fraction includes from about 40% to about 95% by weight naphthalene and from about 5% to about 60% by weight of a plurality of compounds selected from the group consisting of quinoline, indene, biphenyl, indane, acenaphthene, anthracene, phenanthrene, methyl naphthalene, cresol, phenol, xylenol, and tetralin. The present invention also provides a method of forming a sulfonated coal tar distillate salt polymer.

Abstract: The present invention relates to cement dispersant that is a copolymerization product of a first monomer (A) comprising a carboxylic acid, a second monomer (B) comprising an alkoxylated allyl alcohol sulfate, and, optionally, a third monomer (C) comprising an alkoxylated allyl alcohol. The cement dispersant according to the invention provides improved slump life properties and water reduction properties in cement admixtures.

Abstract: A dispersant for use with concrete or cement, and a concrete or cement admixture that comprises a cementitious material, water, and the dispersant. The dispersant includes a polymeric derivative of carboxylic acid, and has a sulfur-containing moiety that is covalently bonded thereto. Adding the dispersant to the cementitious material and water improves the rheological properties of the admixture.

Abstract: The present invention provides a dispersant and foaming agent combination that is useful in the production of gypsum wallboard and other aqueous cementitious products. The dispersant in the combination according to the invention is a naphthalene sulfonate-aldehyde condensate alkali salt polymer having a weight average molecular weight of from about 17,000 to about 47,000. The alkali is preferably an alkali metal and/or an alkaline earth metal. The aldehyde is preferably formaldehyde. The foaming agent used in the combination according to the invention is a soap, preferably an alkali salt of an alkyl ether sulfate and/or an alkyl sulfate. The combination of a high molecular weight dispersant and a foaming agent produces a gypsum wallboard core effect that more efficiently entrains air (i.e., creates void space), thereby lowering overall board weight without detrimentally affecting strength.

Abstract: The present invention provides a dispersant and foaming agent combination that is useful in the production of gypsum wallboard and other aqueous cementitious products, a method of forming a gypsum wallboard and a gypsum wallboard. The dispersant in the combination according to the invention is a naphthalene sulfonate-aldehyde condensate alkali salt polymer having a weight average molecular weight of from about 17,000 to about 47,000. The alkali is preferably an alkali metal and/or an alkaline earth metal. The aldehyde is preferably formaldehyde. The foaming agent used in the combination according to the invention is a soap, preferably an alkali salt of an alkyl ether sulfate and/or an alkyl sulfate. The combination of a high molecular weight dispersant and a foaming agent produces a gypsum wallboard core effect that more efficiently entrains air (i.e., creates void space), thereby lowering overall board weight without detrimentally affecting strength.

Abstract: The present invention provides a dispersant and foaming agent combination that is useful in the production of gypsum wallboard and other aqueous cementitious products, a method of forming a gypsum wallboard and a gypsum wallboard. The dispersant in the combination according to the invention is a naphthalene sulfonate-aldehyde condensate alkali salt polymer having a weight average molecular weight of from about 17,000 to about 47,000. The alkali is preferably an alkali metal and/or an alkaline earth metal. The aldehyde is preferably formaldehyde. The foaming agent used in the combination according to the invention is a soap, preferably an alkali salt of an alkyl ether sulfate and/or an alkyl sulfate. The combination of a high molecular weight dispersant and a foaming agent produces a gypsum wallboard core effect that more efficiently entrains air (i.e., creates void space), thereby lowering overall board weight without detrimentally affecting strength.

Abstract: The present invention provides a dispersant and foaming agent combination that is useful in the production of gypsum wallboard and other aqueous cementitious products, a method of forming a gypsum wallboard and a gypsum wallboard. The dispersant in the combination according to the invention is a naphthalene sulfonate-aldehyde condensate alkali salt polymer having a weight average molecular weight of from about 17,000 to about 47,000. The alkali is preferably an alkali metal and/or an alkaline earth metal. The aldehyde is preferably formaldehyde. The foaming agent used in the combination according to the invention is a soap, preferably an alkali salt of an alkyl ether sulfate and/or an alkyl sulfate. The combination of a high molecular weight dispersant and a foaming agent produces a gypsum wallboard core effect that more efficiently entrains air (i.e., creates void space), thereby lowering overall board weight without detrimentally affecting strength.

Abstract: The present invention provides a sulfonated coal tar distillate salt polymer that is a condensation product of an aldehyde, preferably formaldehyde, and a sulfonated middle fraction obtained during coal tar distillation. The middle fraction includes from about 40% to about 95% by weight naphthalene and from about 5% to about 60% by weight of a plurality of compounds selected from the group consisting of quinoline, indene, biphenyl, indane, acenaphthene, anthracene, phenanthrene, methyl naphthalene, cresol, phenol, xylenol, and tetralin. The present invention also provides a method of forming a sulfonated coal tar distillate salt polymer.

Abstract: Surfactants containing a mixture of alkyl sulfate and alkyl ether sulfate in specific ratios are provided. Preferred compositions are blends of alkyl sulfate with narrow range alkoxylated alcohols are sulfonated. These compositions are used as improved foaming agent compositions and exhibit desirable foaming characteristics for use in the manufacture of gypsum board and concrete and in oil field applications.

Abstract: Narrow range alkoxylated alcohols are sulfonated and used as improved foaming agent compositions. These compositions exhibit desirable foaming characteristics for use in the manufacture of gypsum board and concrete and in oil field applications.

Abstract: An aqueous drilling fluid having present in an amount sufficient to disperse the fluid and to provide resistance to high temperatures and solids contamination of the drilling fluid, at least one salt of a polymer or copolymer of acrylic or methacrylic acid with alkanolamine, alkylamine, mixtures of alkanolamine and alkylamine, mixtures of lithium and alkanolamine, mixtures of lithium and alkylamine and mixtures of lithium, alkanolamine and alkylamine, the polymer having a weight average molecular weight of between about 2,000 and about 15,000 and a pH of from about 6 to about 8.5 and where mixtures of lithium and alkanolamine, lithium and alkylamine or mixtures of lithium, alkanolamine and alkylamine are used, the amount of lithium is present to give from about 30% to about 70% of the desired neutralization of the polymer and the alkanolamine and/or alkylamine is present to give from about 70% to about 30% of the desired neutralization of the polymer.