Abstract: Poles of this invention have an annular body with a wall structure comprising a number of fiber reinforced resin layers, which can be positioned to form an inside and/or outside portion of the wall structure. A portion of the layers are oriented longitudinally within the wall structure, and the wall structure also includes radially-oriented fiber reinforced resin layers. The pole includes one or more layers or a core of a composite material or polymer mortar disposed within one or more locations of the wall structure, e.g., as an intermediate layer and/or as part of the wall inside and/or outside portion. The pole can include an outside surface resistant to ultra violet radiation. Poles of this invention can be formed using a continuous process on a rotating mandrel, making use of differently positioned stations to form the different portions of the pole as the fabrication is moved axially along the mandrel.

Abstract: Mortar-coated steel pipe comprise a steel cylinder having a mortar layer disposed therein, such mortar layer being free of any metallic reinforcement. An overcoat is disposed over the mortar layer and is formed from a material that is a dielectric and/or a barrier to moisture and oxygen entering the mortar layer, e.g., a polymeric material. The pipe may include a further concrete or mortar layer disposed over the overcoat, forming an outermost pipe surface. The outer layer can be cement, mortar, or other material. The mortar layer thickness is about 2 to 30 mm, the overcoat thickness is about 0.1 to 2 mm, and any outer layer thickness is about 1.2 to 4 cm. The pipe is made by compression coating method, where mortar layer and overcoat are applied simultaneously. When an outer layer is desired, it is preferably applied at the same time as the mortar layer and overcoat.

Abstract: Pressure cast lined steel pipes comprise an annular concrete or mortar liner along an inside diameter, and a metal shell surrounding the liner, wherein the liner is in direct contact with the metal shell. The wall thickness of the liner can be from 10 to 50 times the thickness of the metal shell. The pipe may be coated with a dielectric material. A mold assembly used to form the pipe includes an annular concrete or mortar composition chamber formed between the metal shell and an inner mold member. Pressurized water is used in the mold assembly to pressurize the concrete or mortar composition and exert a desired pressure force onto the metal shell while the composition cures in the mold. Once a desired degree of cure is achieved, the pressure is removed causing the metal shell to exert a desired compression force onto the cured liner.

Abstract: Pressure cast lined steel pipes comprise an annular concrete or mortar liner along an inside diameter, and a metal shell surrounding the liner, wherein the liner is in direct contact with the metal shell. The wall thickness of the liner can be from 10 to 50 times the thickness of the metal shell. The pipe may be coated with a dielectric material. A mold assembly used to form the pipe includes an annular concrete or mortar composition chamber formed between the metal shell and an inner mold member. Pressurized water is used in the mold assembly to pressurize the concrete or mortar composition and exert a desired pressure force onto the metal shell while the composition cures in the mold. Once a desired degree of cure is achieved, the pressure is removed causing the metal shell to exert a desired compression force onto the cured liner.

Abstract: A contained pipeline and leak detection system includes a primary pipeline section surrounded by a secondary pipeline section and an interstitial space formed between the primary pipeline section and the secondary pipeline section. A pressurized fluid reservoir having a volume of fluid, and in fluid communication with the interstitial space is provided. The fluid in the interstitial space has a pressure greater than the pressure of a fluid inside the primary pipeline section. A sensor detects changes in the volume of fluid in the fluid reservoir, which are indicative of leakage or system malfunction.

Abstract: Poles of this invention have an annular body with a wall structure comprising a number of fiber reinforced resin layers, which can be positioned to form an inside and/or outside portion of the wall structure. A portion of the layers are oriented longitudinally within the wall structure, and the wall structure also includes radially-oriented fiber reinforced resin layers. The pole includes one or more layers or a core of a composite material or polymer mortar disposed within one or more locations of the wall structure, e.g., as an intermediate layer and/or as part of the wall inside and/or outside portion. The pole can include an outside surface resistant to ultra violet radiation. Poles of this invention can be formed using a continuous process on a rotating mandrel, making use of differently positioned stations to form the different portions of the pole as the fabrication is moved axially along the mandrel.

Abstract: Methods for forming double containment pipeline sections are provided where granular material is used to define the annuluses of such pipeline sections.

Abstract: Elastomer-modified Epoxy-polysiloxane compositions of this invention are prepared by combining a silicone intermediate, with an epoxy resin, an elastomeric resinous intermediate, a polyfunctional amine, an optional organometallic catalyst, and optional fillers, pigments, and processing agents. The composition is prepared using a sufficient amount of water to promote hydrolysis of the polysiloxane and the polycondensation of the silanols produced by such hydrolysis. In its cured form, the epoxy-polysiloxane composition exists as a uniformly dispersed arrangement of linear epoxy chain fragments that are cross-linked with a continuous polysiloxane polymer chain, wherein either or both of the epoxy and/or polysiloxane polymers are elastomer modified to provide coatings and floorings having significantly improved properties of impact resistance, flexibility, crack resistance, and abrasion resistance with compared to conventional epoxy systems.

Abstract: A contained pipeline and leak detection system having a plurality of pipeline sections adjoined to one or more fluid reservoirs, and a method of detecting leakage in the system are provided. Each pipeline section includes a primary pipeline section and a secondary pipeline section disposed around the primary pipeline section, defining an interstitial space therebetween. The pipeline sections are adjoined by a fitting that maintains fluid communication between the primary and secondary pipeline sections, and the interstitial spaces. Fluid is disposed within the interstitial spaces and the fitting such that fluid entering or exiting the interstitial spaces or the fitting, changes the volume of fluid in the fluid reservoir. An alarm system is connected to the fluid reservoir having a sensor that detects changes in the volume of fluid in the fluid reservoir.

Abstract: A pipe section for lining sewer pipelines along with a system of such pipe sections and method of lining a sewer pipeline are provided. The pipe section has a first end portion having a spigot. A protective ring is mounted around the spigot for transferring a load to the pipe section for axially moving the pipe section within a sewer pipeline. A second end portion of the pipe section is designed for surrounding the spigot of an adjacent pipe. A seal is formed is formed around the spigot for sealing with the second end portion of the adjacent pipe section.

Abstract: Elastomer-modified Epoxy-polysiloxane compositions of this invention are prepared by combining a silicone intermediate, with an epoxy resin, an elastomeric resinous intermediate, a polyfunctional amine, an optional organometallic catalyst, and optional fillers, pigments, and processing agents. The composition is prepared using a sufficient amount of water to promote hydrolysis of the polysiloxane and the polycondensation of the silanols produced by such hydrolysis. In its cured form, the epoxy-polysiloxane composition exists as a uniformly dispersed arrangement of linear epoxy chain fragments that are cross-linked with a continuous polysiloxane polymer chain, wherein either or both of the epoxy and/or polysiloxane polymers are elastomer modified to provide coatings and floorings having significantly improved properties of impact resistance, flexibility, crack resistance, and abrasion resistance with compared to conventional epoxy systems.

Abstract: Abrasion resistant pipes of this invention comprise a structural wall formed from a filament wound fiberglass-reinforced material, and an elastomeric abrasion resistant material disposed along the inside and/or outside surface of such pipe. In a preferred embodiment, the structural pipe wall is formed from a filament wound fiberglass-reinforced epoxy resin material, and the abrasion resistant material is formed from a polyurea elastomer. Abrasion resistant pipes of this invention are manufactured using existing filament winding processes by first coating a mandrel with the elastomeric abrasion resistant material, and than winding the resin impregnated filament therearound. Pipes prepared according to principles of this invention have improved properties of toughness, temperature resistance, chemical resistance, and abrasion resistance when compared to conventional fiberglass-reinforced pipes that either have no protective liner or have liners formed from other elastomeric materials.

Abstract: Elastomer-modified Epoxy-polysiloxane compositions of this invention are prepared by combining a silicone intermediate, with an epoxy resin, an elastomeric resinous intermediate, a polyfunctional amine, an optional organometallic catalyst, and optional fillers, pigments, and processing agents. The composition is prepared using a sufficient amount of water to promote hydrolysis of the polysiloxane and the polycondensation of the silanols produced by such hydrolysis. In its cured form, the epoxy-polysiloxane composition exists as a uniformly dispersed arrangement of linear epoxy chain fragments that are cross-linked with a continuous polysiloxane polymer chain, wherein either or both of the epoxy and/or polysiloxane polymers are elastomer modified to provide coatings and floorings having significantly improved properties of impact resistance, flexibility, crack resistance, and abrasion resistance with compared to conventional epoxy systems.

Abstract: A fitting assembly for joining a double containment pipe (DCP), including primary and secondary pipes, to a double containment fitting, including primary and secondary fittings, wherein the secondary fitting has a larger diameter than the secondary pipe. A sealing reducer has a larger diameter end for fitting over the secondary fitting and a smaller diameter end for fitting over the secondary pipe. The sealing reducer is fit over the secondary pipe, the primaries of the DCP and double containment fitting are joined, and then the sealing reducer is positioned over the primary joint and its smaller and larger diameter ends sealed, either by adhesive or a combination of interlocking threaded fitting components and O-rings, to the ends of the secondary pipe and secondary fitting, respectively.

Abstract: A steel strip laminate pipe having increased lap shear strength and peel off strength between the steel layers in the pipe and a method for making such a steel strip pipe are provided. Steel strips coated with a sol-gel or a silane adhesion promoter are wound over an inner lining to form steel layers bonded to each other in a steel strip laminate pipe. In an alternate embodiment, fiber fillers and resin are used to bond the steel layers in the pipe together. In further embodiment, glass sphere and resin are used to bond the steel layers together. The steel strips bonded together using continuous reinforced fiber filler or glass spheres may be coated with sol-gel or silane. In an alternate embodiment, the sol-gel or silane may also be mixed in the resin used to bond the steel layers together.

Abstract: A steel strip laminate pipe having increased lap shear strength and peel off strength between the steel layers in the pipe and a method for making such a steel strip pipe are provided. Steel strips coated with a sol-gel or a silane adhesion promoter are wound over an inner lining to form steel layers bonded to each other in a steel strip laminate pipe. In an alternate embodiment, fiber fillers and resin are used to bond the steel layers in the pipe together. In further embodiment, glass sphere and resin are used to bond the steel layers together. The steel strips bonded together using continuous reinforced fiber filler or glass spheres may be coated with sol-gel or silane. In an alternate embodiment, the sol-gel or silane may also be mixed in the resin used to bond the steel layers together.

Abstract: Waterborne hydrophobic cleaning and coating compositions of this invention are prepared by combining one or more silicone ingredient, with water, and at least one solubilizing agent capable of making the silicone ingredient miscible in water to form a homogeneous mixture. Optionally, cleaning and costing compositions of this invention can include volatilizing agents, to reduce application time, and colorizing agents, to provide a desired composition color. The silicone ingredient can be selected from the group of silicone resins, silicone oils, and mixtures thereof. Preferably, the silicone ingredient comprises a functional group that is capable of forming a bond with a chemical group of the underlying substrate. Preferably, the solubilizing agent is one that is selected from the group consisting of organic solvents, alcohols, ketones, acetates, ethers, esters, aromatics, and mixtures thereof that are soluble in water and that are capable of cleaning a substrate surface.

Abstract: A double containment glass fiber pipe section is formed by a single winding operation. The pipe section may be a pipe or a pipe fitting. A section of primary pipe is wound and wrapped by a plastic tape. A permeable material layer is then wrapped around the wrapped primary section. One or more plastic tape layers are then wrapped over the permeable material layer followed by a winding of the secondary pipe section. The assembly is then cured forming a double containment pipe section having a permeable annulus having a radial thickness of about 1 mm. The permeable annulus is defined by the permeable material between the primary and the secondary sections. The permeable material allows for the flow of fluids within the annulus. A pair of wires may be helically wound within the annular space and can be used to detect leakage from the primary pipe section flowing within the annulus by monitoring changes in the capacitance or the resistance between the wires.

Abstract: A pipe coupling for two pipe ends having the same inner diameter includes a first pipe coupling joining the pipe ends. The first pipe coupling is formed from a section of pipe having approximately the same inner diameter as the pipe ends and is split longitudinally. A second pipe coupling is clamped over the location of the junction between the pipe ends. The second pipe coupling is formed from a section of pipe having approximately the same inner diameter as the pipe ends and is split longitudinally. The split of the second pipe coupling is offset from the split of the first pipe coupling. The couplings may include an inner and an outer coupling, two outer couplings, or an inner coupling and two outer couplings. Each inner coupling have a strip of material removed along its longitudinal split so that it can be compressed to substantially close the gap at its split and inserted into a pipe end.

Abstract: Halogenated resin compositions are prepared without using halogen acids by combining at least one silicone intermediate, with an optional silane, an organic halogen-containing ingredient having functional groups selected from the group consisting of hydroxy, amine, and carboxyl groups, and a resin selected from the group consisting of hydroxy- and epoxy-functional resins. One or more amine curing agent and/or catalyst selected from the group consisting of organometallic compounds, acids, bases, and mixtures thereof can optionally be added to facilitate ambient temperature curing of the resulting composition. The combined ingredients undergo hydrolysis reactions to form a halogenated organooxysilane that condenses to form a cross-linked halogenated polysiloxane composition. The resin also reacts with the condensing halogenated organooxysilane to introduce itself into the cross-linked halogenated polysiloxane and, thereby form the halogenated polysiloxane resin composition.