Abstract: Compositions and methods for making compositions useful for imparting water resistance to gypsum products are disclosed. Processes for making gypsum products made from an emulsion of the composition are also disclosed. The compositions of the invention include at least one paraffin wax, a saponifiable wax, and a styrene-maleic anhydride copolymer. The composition may further include water and be in the form of an emulsion.

Abstract: Compositions for dust suppression, methods for forming the compositions, and methods for using the compositions are provided. In one embodiment, the composition includes at least a binding agent. The composition may be in the form of an emulsion. The compositions may be applied to an exposed surface of a substrate to suppress or mitigate fugitive dust therefrom.

Abstract: An additive composition for mortars, exterior insulation finish systems, self-leveling compounds and joint compounds is disclosed. The additive composition contains a nitrogen-containing polymer and a reactive agent capable of forming a crosslinking reaction with the nitrogen-containing polymer. Small amounts of the additive composition contained in a product not only can increase one or more properties of the product but can also minimize the use of redispersible polymers in the product.

Abstract: A wax extender may be employed in the manufacture of particle board, and oriented strand board to reduce the content of the wax in favor of a copolymer prepared by copolymerizing vinyl acetate with a hydrophobic reactive comonomer. The hydrophobic reactive comonomer may have the general formula: wherein R1 is a hydrophobic group having from about 4 to about 25 carbons; and R2, R3 and R4 are independently hydrogen or a methyl group subject to the limitation that at least one of these is hydrogen.

Abstract: Corrosion-resistant adhesive compositions are provided. The compositions are useful for bonding together plies in multi-ply cellulosic fibrous structures. Multi-ply cellulosic fibrous structures incorporating the adhesives, products produced from such structures, and methods of producing the structures are also disclosed. The adhesive compositions incorporate a polyvinyl alcohol polymer and a corrosion inhibitor. The adhesive compositions may be sprayed or coated onto the cellulosic structures to bond layers of the structure to each other. The corrosion-resistant adhesive compositions are useful for preventing corrosion in the various devices used for handling and application of the adhesives such as spray equipment and applicator rolls. The cellulosic fibrous structures may be used to produce a variety of products including paper towels, toilet tissue, facial tissue, napkins, and other absorbent materials.

Abstract: It is applied in those processes in which it is required to modify the configuration of a first piece (1) for which, when joined to a second piece (2), for carrying out different tests, as is the case of measurements of aerodynamic properties of objects in a wind tunnel, it is required to modify the first piece, which implies modifying the coupling part of the second piece (2) on the first piece (1). The invention avoids manufacturing the complete second piece (2) with each new design of the first piece (1), for which the latter is designed and manufactured with a fixed configuration, valid for any possible configuration (1a, 1b) of the first piece (1) and which lacks the coupling part (3) with the first piece (1) in such a way that a third piece (3) is designed and manufactured corresponding to the coupling part between the configuration (1a, 1b) of the first piece (1) and the second piece (2) for carrying out the joint between both, with each design of the first piece.

Abstract: The dummy elements (1) are pieces which are backed on to the object to test for measurement of aerodynamic properties. Once the geometry is known that the dummy element has to have on account of flight conditions, atmospheric conditions and the original aerodynamic surface, the shape of the dummy element (1) is reproduced by stereolithography, at the same time forming certain extensions (4) which follow the aerodynamic geometry of the object (3) and which are located in strategically selected positions, the whole acting by way of a negative template which is restricted to and follows the shapes of the leading edge. An adhesive is then applied to the surface of the dummy element (1) without it affecting the extensions (4) since they then have to be removed.

Abstract: An additive composition for mortars, exterior insulation finish systems, self-leveling compounds and joint compounds is disclosed. The additive composition contains a nitrogen-containing polymer and a reactive agent capable of forming a crosslinking reaction with the nitrogen-containing polymer. Small amounts of the additive composition contained in a product cannot only increase one or more properties of the product but can also minimize the use of redispersible polymers in the product.

Abstract: An additive composition for mortars, exterior insulation finish systems, self-leveling compounds and joint compounds is disclosed. The additive composition contains a nitrogen-containing polymer and a reactive agent capable of forming a crosslinking reaction with the nitrogen-containing polymer. Small amounts of the additive composition contained in a product cannot only increase one or more properties of the product but can also minimize the use of redispersible polymers in the product.

Abstract: Various processes and methods are disclosed for incorporating polyvinyl alcohol additives into products. In one embodiment, polyvinyl alcohol particles are dissolved in a solvent without the use of external heat to form a polyvinyl alcohol solution for incorporation into a product. In an alternative embodiment, polyvinyl alcohol particles are directly incorporated into a starch-based adhesive composition. Through the processes of the present disclosure, solid polyvinyl alcohol particles can be delivered directly to a manufacturing facility where the product that incorporates the polyvinyl alcohol additive is being made or formulated. In this manner, since the polyvinyl alcohol particles are not predissolved, the costs associated with shipping and transporting the polyvinyl alcohol product are greatly reduced.

Abstract: Corrosion-resistant adhesive compositions are provided. The compositions are useful for bonding together plies in multi-ply cellulosic fibrous structures. Multi-ply cellulosic fibrous structures incorporating the adhesives, products produced from such structures, and methods of producing the structures are also disclosed. The adhesive compositions incorporate a polyvinyl alcohol polymer and a corrosion inhibitor. The adhesive compositions may be sprayed or coated onto the cellulosic structures to bond layers of the structure to each other. The corrosion-resistant adhesive compositions are useful for preventing corrosion in the various devices used for handling and application of the adhesives such as spray equipment and applicator rolls. The cellulosic fibrous structures may be used to produce a variety of products including paper towels, toilet tissue, facial tissue, napkins, and other absorbent materials.

Abstract: Organometallic complexes suitable as olefin metathesis catalysts are provided. The complexes are Group 8 transition metal carbenes bearing a cationic substituent and having the general structure (I) wherein M is a Group 8 transition metal, L1 and L2 are neutral electron donor ligands, X1 and X2 are anionic ligands, m is zero or 1, n is zero or 1, and R1, W, Y, and Z are as defined herein. Methods for synthesizing the complexes are also provided, as are methods for using the complexes as olefin metathesis catalysts.

Abstract: The System for sealing for variable spaces comprising sealing means (3) for at least partially packing a space (4) between two pieces (1, 2) of a model, characterised in that at least a first piece (1) of the model presents, on its side facing a second piece (2) of the model, at least one recess (5) with a front end (5a) open and a back wall (5b), with the sealing means, comprising an elastic and flexible sealing body (3), being located in the front end (5a), and the back wall (5b) containing a set of spring elements (6, 7) among which are to be found coil springs or elastic strips, at least partially compressed by the sealing body (3) and which push the latter against the surface of the second piece (1b) of the model.

Abstract: System for transmitting pressures between a detachable part (2a,2b) and a fixed part (1) of a model in a wind tunnel, which presents pressure tapping holes (3a-3h) and pressure outlets (5a-5h) in the detachable part connected together by means of internal conduits (4a-4h), and pressure inlets (7a-7h) in the fixed part (1) connected to a pressure measuring module via pressure transmission ducts (8a-8h) and pressure transmission conduits (9a-9h), in such a way that when the two pieces are coupled by coupling means (6), the pressure outlets (5a-5h) are facing the pressure inlets (7a-7h), with a sealing joint 10 existing between them with passage holes (10a-10h), the entire unit permitting the transmission of pressure from the detachable part (2a,2b) to the fixed part (1) without any need for pipes or connectors.

Abstract: The System for sealing for variable spaces comprising packing means (3) for at least partially packing a space (4) between two pieces (1, 2) of a model, characterised in that at least a first piece (1) of the model presents, on its side facing a second piece (2) of the model, at least one recess (5) with a front end (5a) open and a back wall (5b), with the packing means, comprising an elastic and flexible packing body (3), being located in the front end (5a), and the back wall (5b) containing a set of spring elements (6, 7) among which are to be found coil springs or elastic strips, at least partially compressed by the packing body (3) and which push the latter against the surface of the second piece (1b) of the model.

Abstract: Methods of making polymeric fibers are provided and include spinning a solution containing at least one polymer, a modified pigment having attached at least one organic group, and a solvent. The polarity of the solvent and the polarity of the modified pigment are selected such that the polymer is soluble in the solution and the modified pigment is maintained dispersed throughout the solution. The polarity of the modified pigment may be substantially the same as the polarity of the solvent. Fibers of acrylic-containing polymers and other polymeric fibers are also provided. Articles and reinforcing material containing the various fiber(s) are also described.

Abstract: Methods of making polymeric fibers are provided and include spinning a solution containing at least one polymer, a modified pigment having attached at least one organic group, and a solvent. The polarity of the solvent and the polarity of the modified pigment are selected such that the polymer is soluble in the solution and the modified pigment is maintained dispersed throughout the solution. The polarity of the modified pigment may be substantially the same as the polarity of the solvent. Fibers of acrylic-containing polymers and other polymeric fibers are also provided. Articles and reinforcing material containing the various fiber(s) are also described.

Abstract: A blended flame spray powder composition is provided for use in producing a bonded wear resistant coating on an aluminum bronze substrate such as a glass mold part. The blended composition comprises a copper-base alloy mixed with a nickel-base alloy, the copper-base alloy powder comprising by weight about 5% to 15% aluminum, about 5% to 30% nickel, 0 to about 1% iron, about 0.1 to 1% silicon and the balance essentially copper. The nickel-base alloy powder comprises by weight 0 to about 0.5% carbon, 0 to about 1% manganese, 0 to about 21.5% chromium, 0 to about 7.5% iron, 0 to about 3.75% columbium, about 0.5% to 3% silicon, 0 to about 9% molybdenum, 0 to about 2% boron, 0 to about 2.5% phosphorus and the balance essentially nickel. The blending ratio of one powder to the other is such that a bonded coating produced therefrom on an aluminum bronze substrate, such as a glass mold part, contains at least about 9% copper and at least about 1.25% aluminum.

Abstract: A method for producing a weld-bonded nickel-base alloy coating on a cast iron part with minimum porosity at the weld interface is provided using a plasma transferred arc process in which the cast iron part is electrically coupled to the plasma-forming circuit, the flow of powder being directed into the plasma arc to the surface of the cast iron part. The method further resides in controlling the deposit of the nickel-base alloy during spraying to maintain a puddle of the alloy between the transfer arc plasma and the cast iron part substrate to protect it from overheating and burning from the transfer arc while promoting a welding reaction between the puddle and the cast iron substrate. The plasma spraying is continued progressively along the cast iron substrate to be coated while maintaining the alloy puddle between the plasma arc and the cast iron until completion of the coating thereof. The invention also relates to a composite article of manufacture.

Abstract: The invention contemplates a powder-feeding system for gas-propelled delivery of a powder to be controllably supplied, as to a flame-spraying gas torch or to a transferred-arc plasma torch. A fluidizing chamber receives (a) fluidizing-gas flow from below a porous screen, and (b) a restricted gravitational flow of powder at a relatively small central discharge location above the porous screen. A gas conduit extends transversely through the chamber between the powder-discharge location and the porous screen; it has a carrier-gas supply connection at one end and a gas-propelled powder-delivery connection at its other end. The conduit also has an upwardly extending opening virtually beneath and facing the powder-discharge location, but a shed interposed between this opening and the powder-discharge location sufficiently overlaps the opening to assure that no powder will pass through the opening and into the conduit unless it has been gas-fluidized.