Abstract: Polyisocyanurate or polyurethane-isocyanurate polymers are made by curing an aromatic polyisocyanate or a mixture of at least one aromatic polyisocyanate and at least one polyol having a hydroxyl equivalent weight of up to 200 in which the isocyanate index is at least 2.00, in the presence of at least one isocyanate trimerization catalyst, to form a polyisocyanurate or polyurethane-isocyanurate polymer having a glass transition temperature of at least 100° C., and then exposing the polyisocyanurate or polyurethane-isocyanurate polymer formed step a) to water under superatmospheric pressure at a temperature of at least 70° C.

Abstract: A reaction system for forming a polyurethane foam includes an isocyanate component that has at least one isocyanate and an isocyanate-reactive component that is a mixture formed by adding at least a polyol component, an additive component, and a preformed aqueous polymer dispersion. The mixture includes, based on the total weight of the mixture, from 50.0 wt % to 99.8 wt % of a polyol component including at least one polyether polyol, from 0.1 wt % to 50.0 wt % of an additive component including at least one catalyst, and from 0.1 wt % to 6.0 wt % of a preformed aqueous polymer dispersion. The preformed aqueous polymer dispersion has a solids content from 10 wt % to 80 wt %, based on the total weight of the preformed aqueous polymer dispersion, and is one of an aqueous acid polymer dispersion or an aqueous acid modified polyolefin polymer dispersion in which the polyolefin is derived from at least one C2 to C20 alpha-olefin.

Abstract: The present invention relates to coated proppants, a method to make said coated proppants, and a method to use such coated proppants in fracturing subterranean formations around oil and gas wells to improve oil recovery. Preferably, said proppants are coated with an oil well treatment agent, specifically, a wax inhibitor and/or a pour point depressant composition.

Abstract: An epoxy thermoset that includes a reaction product of a toughening agent prepared from a reaction of a first epoxy resin and a polyether polyamine, a second epoxy resin and a liquid amine hardener for the toughening agent and the second epoxy resin. The toughening agent is an adduct of the second epoxy resin and the polyether polyamine. The polyether polyamine phase of the toughening agent separates to form particles in the epoxy thermoset, where the particles have a volume average diameter in a range from 20 nanometers to 200 nanometers.

Abstract: The present disclosure is directed to a composition and articles containing the composition. The composition comprises a foam and a plurality of gel particles dispersed in the foam. The gel particles comprise an olefin block copolymer and an oil.

Abstract: The present disclosure is directed to a composition and articles containing the composition. The composition comprises a foam and a plurality of gel particles dispersed in the foam. The gel particles comprise an olefin block copolymer and an oil.

Abstract: A method for exposing a substrate to water under superatmospheric pressure at a temperature of at least 70° C. includes (a) applying a reaction mixture to a substrate, which reaction mixture has an isocyanate index of at least 10 and includes an aromatic polyisocyanate component, a polyol component having a polyol with a hydroxyl equivalent weight of at least 500, and a catalyst component having an isocyanate trimerization catalyst, and at least partially curing the reaction mixture to form a polyisocyanurate or polyurethane-isocyanurate polymer having a glass transition temperature of at least 80° C., and (b) exposing the substrate and the polyisocyanurate or polyurethane-isocyanurate polymer to water under superatmospheric pressure at a temperature of at least 70° C.

Abstract: The present invention discloses a structure comprising a plurality of three dimensional cells, wherein each cell comprises exterior walls defining an interior void wherein the walls comprise a plurality of struts and windows, the struts forming borders for the plurality of windows, wherein the struts have a plurality of pores. The present invention further discloses a viscoelastic foam having a ratio of elastic modulus (E?) at 20° C. to 25% compression force deflection (CFD) of 25 to 125.

Abstract: Embodiments of the present invention relate to polyurethane foams having high air flow while maintaining viscoelastic properties. In one embodiment, a reaction system for preparation of a viscoelastic polyurethane foam is provided. The reaction system comprises (a) a polyisocyanate component and (b) an isocyanate reactive component. The isocyanate reactive component comprises (i) from 35 to 74% by weight of the isocyanate reactive component of one or more propylene oxide rich (PO-rich) polyols having a combined number average equivalent weight from 200 to 500, (ii) from 24 to 50% by weight of the isocyanate reactive component of one or more ethylene oxide rich (EO-rich) polyols having a combined number average equivalent weight from 200 to 2,800, and (iii) from 2 to 10% by weight of the isocyanate reactive component of one or more butylene oxide rich (BO-rich) polyethers having a number average equivalent weight of 2,000 or more.

Abstract: Polyisocyanurate or polyurethane-isocyanurate polymers are made by curing an aromatic polyisocyanate or a mixture of at least one aromatic polyisocyanate and at least one polyol having a hydroxyl equivalent weight of up to 200 in which the isocyanate index is at least 2.00, in the presence of at least one isocyanate trimerization catalyst, to form a polyisocyanurate or polyurethane-isocyanurate polymer having a glass transition temperature of at least 100° C., and then exposing the polyisocyanurate or polyurethane-isocyanurate polymer formed step a) to water under superatmospheric pressure at a temperature of at least 70° C.

Abstract: Solid, non-melting polyurethanes having a glass transition temperature of at least 40° C. and free isocyanate groups are self-bonding materials that are useful in a variety of adhesive and molding operations. Under conditions of heat and moisture, these polyurethanes will self-bond. The polyurethanes can be used as adhesive coatings, which are solid and non-tacky and thus can be transported and stored easily under ambient conditions. These polyurethane adhesives are especially useful in applications in which, due to the location and/or orientation of the substrates, liquid or melting materials cannot be applied easily or will run off the substrates.

Abstract: Solid compositions made from or coated with a non-melting organic polymer having a main glass transition temperature of at least 65° C., few if any isocyanate groups and a wet aged glass transition temperature of up to 60° C. are self-bonding materials that are useful in a variety of adhesive and molding operations. Under conditions of heat and moisture, these compositions will self-bond. The compositions can be used as adhesive coatings, which are solid and non-tacky and thus can be transported and stored easily under ambient conditions. These compositions are especially useful in applications in which, due to the location and/or orientation of the substrates, liquid or melting materials cannot be applied easily or will run off the substrates.

Abstract: A reaction system comprising an organic polyisocyanate and an isocyanate reactive component for preparation of a viscoelastic polyurethane foam is provided. The isocyanate reactive component comprises (i) from 10 to 50% by weight of one or more low equivalent weight propylene oxide rich (PO-rich) polyols having a combined number average equivalent weight from 200 to 500, (ii) from 45 to 95% by weight of one or more ethylene oxide (EO-rich) polyols having a combined number average equivalent weight from 200 to 800 and an ethylene oxide content from 40% to 65% by weight of the total mass of the EO-rich polyol and at least one of (iii) from 10 to 30% by weight of one or more high equivalent weight PO-rich polyols having a number average equivalent weight from 800 to 2,000 or (iv) from 10 to 40% by weight of one or more propylene oxide co-polymer polyols containing styrene-acrylonitrile.

Abstract: Embodiments of the invention provide for paper mill equipment that can better withstand the conditions of a paper mill. Embodiments encompass paper mill equipment that incorporate a polyurethane layer having a hysteresis value of less than 70% and a permanent set of less than 30%. The polyurethane layer includes a polyurethane produced by curing a mixed composition. The mixed composition includes at least a urethane prepolymer (A) and at least a curing agent (B) having an active hydrogen group (H). The urethane prepolymer (A) has at least one terminal isocyanate group and is obtained by reacting at least a polyisocyanate compound (a) with at least a polycarbonate diol compound (b) having a number average molecular weight of at least 1500 g/mol. The curing agent (B) includes at least an amine compound. The elastomer compositions are also useful to coat the acid pickling roller in the steel industry.

Abstract: A reaction system comprising (a) a polyisocyanate component and (b) an isocyanate reactive component for preparation of a polyurethane foam having high air flow with low compression set is provided. The isocyanate reactive component comprises (i) from 45 to 70% by weight of one or more PO-rich polyols having a combined number average equivalent weight from 210 to 510, (ii) from 20 to 30% by weight of one or more ethylene oxide polyols having a combined number average equivalent weight from 200 to 500, (iii) from 10 to 25% by weight of one or more ethylene oxide-alkylene oxide polyethers having a combined number average equivalent weight from 300 to 800; and (iv) from 0.5 to 15% by weight of one or more PO-rich polyols having a functionality of 1 to 4 and a combined number average equivalent weight of 2,000 to 6,000.

Abstract: The present disclosure is directed to a composition and articles containing the composition. The composition comprises a foam and a plurality of gel particles dispersed in the foam. The gel particles comprise an olefin block copolymer and an oil.

Abstract: An epoxy thermoset that includes a reaction product of a toughening agent prepared from a reaction of a first epoxy resin and a polyether polyamine, a second epoxy resin and a liquid amine hardener for the toughening agent and the second epoxy resin. The toughening agent is an adduct of the second epoxy resin and the polyether polyamine. The polyether polyamine phase of the toughening agent separates to form particles in the epoxy thermoset, where the particles have a volume average diameter in a range from 20 nanometers to 200 nanometers.

Abstract: Embodiments of the invention provide for paper mill equipment that can better withstand the conditions of a paper Mill. Embodiments encompass paper mill equipment that incorporate a polyurethane layer having a hysteresis value of less than 70% and a permanent set of less than 30%. The polyurethane layer includes a polyurethane produced by curing a mixed composition. The mixed composition includes at least a urethane prepolymer (A) and at least a curing agent (B) having an active hydrogen group (H). The urethane prepolymer (A) has at least one terminal isocyanate group and is obtained by reacting at least a polyisocyanate compound (a) with at least a polycarbonate diol compound (b) having a number average molecular weight of at least 1500 g/mol. The curing agent (B) includes at least an amine compound. The elastomer compositions are also useful to coat the acid pickling roller in the steel industry.

Abstract: A reaction system comprising an organic polyisocyanate and an isocyanate reactive component for preparation of a viscoelastic polyurethane foam is provided. The isocyanate reactive component comprises (i) from 10 to 50% by weight of one or more low equivalent weight propylene oxide rich (PO-rich) polyols having a combined number average equivalent weight from 200 to 500, (ii) from 45 to 95% by weight of one or more ethylene oxide (EO-rich) polyols having a combined number average equivalent weight from 200 to 800 and an ethylene oxide content from 40% to 65% by weight of the total mass of the EO-rich polyol and at least one of (iii) from 10 to 30% by weight of one or more high equivalent weight PO-rich polyols having a number average equivalent weight from 800 to 2,000 or (iv) from 10 to 40% by weight of one or more propylene oxide co-polymer polyols containing styrene-acrylonitrile.

Abstract: A reaction system comprising (a) a polyisocyanate component and (b) an isocyanate reactive component for preparation of a polyurethane foam having high air flow with low compression set is provided. The isocyanate reactive component comprises (i) from 45 to 70% by weight of one or more PO-rich polyols having a combined number average equivalent weight from 210 to 510, (ii) from 20 to 30% by weight of one or more ethylene oxide polyols having a combined number average equivalent weight from 200 to 500, (iii) from 10 to 25% by weight of one or more ethylene oxide-alkylene oxide polyethers having a combined number average equivalent weight from 300 to 800; and (iv) from 0.5 to 15% by weight of one or more PO-rich polyols having a functionality of 1 to 4 and a combined number average equivalent weight of 2,000 to 6,000.