Abstract: A coated article comprises an article, and one or more amide based coatings on an outer surface of the proppant particle, the amide based coating include the reaction product of an isocyanate component that includes at least one isocyanate and a carboxylic acid component that includes one or more poly-carboxylic acids.

Abstract: A coated article comprises an article, and one or more amide based coatings on an outer surface of the proppant particle, the amide based coating include the reaction product of an isocyanate component that includes at least one isocyanate and a carboxylic acid component that includes one or more poly-carboxylic acids.

Abstract: A composition for preparing a foam comprises (A) a polyol, (B) a pre-mixture comprising (B1) a silicone resin at least partially solubilized in (B2) a physical blowing agent capable of at least partially solubilizing the silicone resin (B1), (C) a polyisocyanate, and (D) a catalyst. The silicone resin (B1) includes at least 20 mol % (R13SiO1/2) siloxy units and at least 40 mol % of (SiO4/2) siloxy units, each based on the total moles of siloxy units present in the silicone resin (B1), with the proviso that the combined amount of (R13SiO1/2) and (SiO4/2) siloxy units is at least 85 mol % based on the total moles of siloxy units present in the silicone resin (B1), where each R1 is independently a substituted or unsubstituted hydrocarbyl group.

Abstract: A composition is disclosed, which comprises (A) an organohydrogensiloxane having cyclic siloxane moieties including silicon-bonded hydrogen atoms. The composition further comprises (B) a polyether compound having an aliphatically unsaturated group. Finally, the composition comprises (C) a hydrosilylation catalyst. A silicone polyether surfactant prepared by reacting components (A) and (B) in the presence of component (C) is also disclosed. In addition, an isocyanate-reactive component comprising a polyol and the silicone polyether surfactant is disclosed. A composition comprising the isocyanate-reactive component, an isocyanate component comprising a polyisocyanate, and a catalyst is further disclosed. Finally, a method of preparing an article comprising a polyurethane and/or polyisocyanurate foam, and an article formed from the composition and/or the method, are disclosed.

Abstract: A composition for preparing a foamed polyurethane article is disclosed. The composition comprises (1) an isocyanate-reactive component and (2) an isocyanate component. The (1) isocyanate-reactive component comprises (A) an organopolysiloxane having an average of at least two carbinol functional groups per molecule and (B) a polyol. The (A) organopolysiloxane is present in an amount of from > 10 to < 99 wt.% based on the combined weight of the (A) organopolysiloxane and the (B) polyol. The (2) isocyanate component comprises (C) a polyisocyanate. The composition further comprises (D) a blowing agent, and (E) a catalyst. A foamed polyurethane article comprising the reaction product of the composition is also disclosed, along with use of the foamed polyurethane article.

Abstract: A method of preparing a polymer concrete composition includes preparing one or more adhesion promoter pre-coated aggregates, each having a base substrate and an adhesion promoter coating and the adhesion promoter coating being an outermost layer on the base substrate, providing a base composition including an isocyanate component and an isocyanate-reactive component, and mixing the one or more adhesion promoter pre-coated aggregates, the isocyanate component, and the isocyanate-reactive component to form the polymer concrete composition.

Abstract: A polymer concrete composition has a base composition including a first isocyanate component and a first isocyanate reactive component, and one or more pre-coated aggregates that each has a base substrate and a two-component reaction product polymeric coating on an outer surface of the base substrate. The polymeric coating is the reaction product of a second isocyanate component and a second isocyanate-reactive component.

Abstract: A coated article, such as a proppant, includes a base substrate and one or more polyurethane based coatings on an outer surface of the base substrate. The one or more polyurethane based coatings including the reaction product of an isocyanate component that has at least one isocyanate and an isocyanate-reactive component that has one or more simple polyols and one or more polyether monols at a ratio from 1:18 to 18:1. An isocyanate index is greater than 0.2 and less than 1.0.

Abstract: A coated proppant includes a solid core proppant particle and a heavy metal recovery coating, including heavy metal recovery crystals embedded within a polymer resin matrix. A process for the manufacture of a coated proppant includes providing a solid core proppant particle, and forming on the solid core proppant particle, a heavy metal recovery coating including heavy metal recovery crystals embedded within a polymer resin matrix.

Abstract: A coated proppant includes a solid core proppant particle, a first resin coating, and a second coating on the first resin coating. The second coating includes the reaction product of one or more curatives and one or more preformed aliphatic or cycloaliphatic based isocyanurate tri-isocyanates, derived from aliphatic diisocyanates, cycloaliphatic diisocyanates, or a combination of aliphatic and cycloaliphatic diisocyanates.

Abstract: A coated article, such as a proppant, includes a base substrate and one or more polyurethane based coatings on an outer surface of the base substrate. The one or more polyurethane based coatings including the reaction product of an isocyanate component that has at least one isocyanate and an isocyanate-reactive component that has one or more simple polyols and one or more polyether monols at a ratio from 1:18 to 18:1. An isocyanate index is greater than 0.2 and less than 1.0.

Abstract: Moisture-curable polysilylated polyether compositions contain titanium (IV) catalysts and/or zinc/amidine catalyst mixtures and are devoid of or nearly devoid of tin compounds. The titanium catalysts and zinc/amide catalyst mixtures are surprisingly found to be highly effective, even when the moisture-curable silane groups of the compositions are dialkoxysilyl groups. The moisture-cured compositions are surprisingly stable when aged at high temperatures. In addition, the compositions are surprisingly storage-stable in the uncured state, particularly when the polysilylated polyethers contain aliphatic urethane groups. The polyether compositions are also preferably devoid of aminosilane adhesion promoters.

Abstract: A coated proppant includes a solid core proppant particle, and a sulfide recovery coating that includes a sulfide capturing agent embedded within a polymer resin matrix. The sulfide capturing agent is a metal oxide.

Abstract: A coated proppant includes a solid core proppant particle and a heavy metal recovery coating, including heavy metal recovery crystals embedded within a polymer resin matrix. A process for the manufacture of a coated proppant includes providing a solid core proppant particle, and forming on the solid core proppant particle, a heavy metal recovery coating including heavy metal recovery crystals embedded within a polymer resin matrix.

Abstract: A contaminant capturing liner includes a cured product of a composition including an epoxy resin component including at least one alkanolamine modified epoxy resin and at least one hardener. The contaminant capturing liner includes at least one contaminant capturing material embedded therewithin, and the contaminant capturing liner is a permeable layer having a difference between dry glass transition temperature and wet glass transition temperature of at least 14 C.

Abstract: A sulfide recovery coating for containers, tanks, pipes, and pipelines, which sulfide recovery coating includes a sulfide capturing agent embedded within a polymer resin matrix. The sulfide capturing agent is a metal oxide and accounts for less than 70 wt % of a total weight a composition for forming the sulfide recovery coating.

Abstract: A coated proppant includes a solid core proppant particle, a first resin coating, and a second coating on the first resin coating. The second coating includes the reaction product of one or more curatives and one or more preformed aliphatic or cycloaliphatic based isocyanurate tri-isocyanates, derived from aliphatic diisocyanates, cycloaliphatic diisocyanates, or a combination of aliphatic and cycloaliphatic diisocyanates.