Abstract: The invention relates to a method for the production of epichlorohydrin, wherein a chloropropane-containing ally chloride in excess is reacted in a first reaction stage with hydrogen peroxide. The non-reacted ally chloride is separated and returned to the reaction, wherein part of the separated ally chloride is added to a second reaction stage and reacted with hydrogen peroxide, wherein the hydrogen peroxide quantity is selected in the second reaction stage such that the ally chloride is largely reacted. The chloropropanes are separated from the reaction mixture of the second reaction stage by means of distillation and removed from the process.

Abstract: A composite prepared using a thermosettable epoxy resin composition having, as components: (1) an epoxy resin; (2) an epoxidized cycloaliphatic dicyclopentadiene phenolic resin; (3) an optional epoxidized bisphenol-A novolac resin; (4) an optional oligomeric butadiene; (5) an optional organic solvent; and (6) an alkylphenol novolac resin, the alkylphenol novolac resin serving as a curing agent. The composite so prepared may have good physical properties and superior a electrical properties as compared to conventional composites, such as laminates. The prepregs used to make the laminates may have a better surface appearance as well.

Abstract: Composite panels may be prepared using a moisture resistance additive having a formulation that includes a triglyceride having a saponification value of at least 150 and an iodine value of at least 35. The additive may be used in the form of a water emulsion. The water emulsion may be prepared by dispersing the components of the additive formulation under conditions sufficient to at least partially saponify the triglyceride. The moisture resistance additive can impart resistance to moisture absorption and thickness swelling to composite panels prepared therewith.

Abstract: Disclosed are bonding agents useful in the production of pelletized or briquetted fuels. The bonding agents may be incorporated into a feed containing the fuel material, providing both adhesion and cohesion of the fines to produce a uniform and predictable pellet or briquette. Specifically, the bonding composition contains a solubulized starch, a sugar source and/or a diol or polyol compound, and optionally a polymer selected from polyvinyl alcohol (PVOH), PVOH copolymers, polyvinyl acetate (PVA), polyvinyl acetate copolymers (PVAc), ethylene vinyl acetate (EVAc or VAE) or any subset or combination of such polymers. Also disclosed are methods of preparing the bonding agents and to densified and/or torrefied biomass products prepared therewith.

Abstract: Proppant materials, and methods for making proppant materials, are provided. In one embodiment, the proppant material comprises a substrate material, a polymeric material disposed on the substrate material and a surface wettability modifier disposed on the polymeric material. Methods of making and using the proppant materials are also disclosed.

Abstract: Disclosed are wax emulsion compositions for curing or sealing concrete and cement formulations, methods for preparing and processes for using the same. The modifiers are applicable to curing or sealing membranes, used in roadways, highways, parking lots and other freshly placed or poured concrete surfaces to retain moisture and achieve high compressive strengths. This invention also relates to materials used to coat, spray, brush, roll etc. on conventional Portland cement concrete mix designs or other applied concrete mixes in formed structural shapes and transport road mix designs, providing an effective layer that controls and minimizes moisture loss from the mix to enable proper curing and achievement of desired compressive strengths. The compositions of the invention further provide for concrete and cement formulations having lower water soluble chloride content.

Abstract: The invention relates to non aqueous curing agents for water dispersed epoxy resins. The curing agent composition offers a binder pot life of several hours, and in the presence of a metal, such as zinc, nearly no hydrogen generation is observed. The present curing composition can be mixed with a metal powder to provide a storage stable paste. The curing agent composition and/or paste is fully compatible with an epoxy water based resin. After low shear blending, the epoxy curing agent and metal system is storage stable for several hours working pot life that provides for cured coatings having good performance.

Abstract: A method for determining fracture geometry of a subterranean formation from radiation emitted from a fracture in the formation, including measuring gamma-radiation emitted from the fracture; subtracting background radiation from the measured gamma-radiation to obtain a peak-energy measurement; comparing the peak-energy measurement with a gamma-ray transport/spectrometer response model; and determining formation fracture geometry of the fracture in accordance with values associated with the response model.

Abstract: A logging system and method for measuring propped fractures and down-hole subterranean formation conditions including: a radar source; an optical source; an optical modulator for modulating an optical signal from the optical source according to a signal from the radar source; a photodiode for converting the modulated optical signal output from the optical modulator to the source radar signal. A transmitter and receiver unit receives the source radar signal from the photodiode and transmits the source radar signal via at least one antenna attached to the casing and in communication with at least one photodiode into the formation and receives a reflected radar signal. A mixer mixes the reflected radar signal with the source radar signal to provide an output. This can describe fractures connected to the wellbore and differentiate between the dimensions of the two vertical wings of a propped fracture.

Abstract: An organic solvent free process to make an aqueous co-dispersion of epoxy resins and at least phenolic novolac resins is reported. The compositions of such co-dispersions are based on blends of epoxy resins and at least a phenolic novolac resin within the profile viscosity versus temperature in the ranges from 1 500 000 to 300 mPas at 80° C. and 10 000 to 20 mPas at 120° C.

Abstract: Composite panels may be prepared using a moisture resistance additive having a formulation that includes a triglyceride having a saponification value of at least 150 and an iodine value of at least 35. The additive may be used in the form of a water emulsion. The water emulsion may be prepared by dispersing the components of the additive formulation under conditions sufficient to at least partially saponify the triglyceride. The moisture resistance additive can impart resistance to moisture absorption and thickness swelling to composite panels prepared therewith.

Abstract: An aqueous reaction product of a composition that may consist essentially of a source of an acid having a pKa in water of about 2 to about 8, a source of a base having a pKb in water of about 2 to about 6, and urea. A curable urea/formaldehyde resin composition may contain a curable urea/formaldehyde resin and the foregoing composition, and may be made by combining the resin with the composition. A reconstituted wood product may be made by combining particulate lignocellulosic material with the foregoing curable resin, and curing the resin. Optionally, a reconstituted wood panel may contain a particulate lignocellulosic material and a binder composition comprising the cured product of curable resin and the aforesaid aqueous reaction product. A concentrate for forming a polymerization enhancing composition is also disclosed.

Abstract: Disclosed are wax emulsion modifiers for concrete and cement formulations and methods for preparing same. The modifiers are applicable to pervious concrete, used in residential areas, parking lots and parks to more effectively manage storm waters and improve environmental practices. This invention also relates to conventional Portland cement concrete mix designs with little to no sand, which provide improved workability, low hydration rates without sacrificing strength while achieving high levels of porosity for water transmission.

Abstract: The present invention is directed to a wax formulation for use in lignocellulosic products, which impart improved properties such as dimensional stability when the products are exposed to moisture. The wax formulations include a wax and a surface tension/interfacial tension reducing agent comprising one or more of a fluorinated compound having two to six carbon atoms, an alkylphenol alkoxylate or an ethoxylated acetylenic diol.

Abstract: Disclosed herein are methods of making free flowing coated particles and low temperature including a step of curing the coating with UV light or electron beam. Each particle has a precured coating disposed upon a substrate. Methods of using the particles are also disclosed.

Abstract: Disclosed herein is a method for making a coated proppant particle including an inorganic material and a cold set thermosetting resin coating disposed upon the substrate. The proppants are suitable for treating a subterranean formation including injecting a fracturing fluid into the subterranean formation; wherein the fracturing fluid includes the coated particle. Methods for making and using gravel pack particles are also disclosed.

Abstract: Disclosed are wax emulsion modifiers for concrete and cement formulations and methods for preparing the same. The modifiers are applicable to roller compacted concrete (RCC), used for manufacturing of industrial floor slabs, dams and roads. This invention also relates to conventional Portland cement concrete mix designs or other applied concrete mixes for formed structural shapes and transport road mix designs, providing a more rapid dehydration of the aqueous phase, without sacrificing strength, yet providing a higher density that remains workable at the point of application. The modifier of the invention may be utilized for either the initial soil/cement base or for the final/finished placement.

Abstract: A composite prepared using a thermosettable epoxy resin composition having, as components: (1) an epoxy resin; (2) an epoxidized cycloaliphatic dicyclopentadiene phenolic resin; (3) an optional epoxidized bisphenol-A novolac resin; (4) an optional oligomeric butadiene; (5) an optional organic solvent; and (6) an alkylphenol novolac resin, the alkylphenol novolac resin serving as a curing agent. The composite so prepared may have good physical properties and superior a electrical properties as compared to conventional composites, such as laminates. The prepregs used to make the laminates may have a better surface appearance as well.

Abstract: An adhesive composition for use in the manufacture of wood-based boards, wherein the adhesive composition is foamable and comprises a resin, a filler and a foaming agent without any cationic acrylamide copolymer. According to the invention, the adhesive composition contains 40-80 wt % resin, 5-30 wt % filler, 0-40 wt % solvent, and 0.1-10 wt % foaming agent, which has been selected from organic and/or inorganic surface-active sulfate, sulfonate, phosphate or phosphonate compounds or their derivatives or mixtures.

Abstract: Disclosed herein is a method comprising disposing in a formation fracture, a proppant and/or a fracturing fluid that comprises a radiation susceptible material that comprises indium and/or vanadium; irradiating the radiation susceptible material with neutrons; measuring gamma-radiation emitted from the radiation susceptible material in a single pass; wherein the single pass does not involve measuring of background radiation from previous or subsequent logging passes; and determining formation fracture height from the measured gamma-radiation.