Abstract: The present invention relates to a mat of polymer fibers capable of trapping formaldehyde which contains at least 0.5% by weight of an acetoacetamide of formula: in which R1 and R2, which may be identical or different, represent a hydrogen atom, a methyl radical or an ethyl radical. Another subject of the invention is the use of said mat, in particular as a surface covering for thermal and/or sound insulation products, in particular based on mineral wool, polystyrene or on an organic or inorganic foam.

Abstract: The invention relates to a structure based on glass strand coated with a resin composition which comprises the following constituents in the proportions indicated, expressed in percentage by weight of solid matter: 75 to 98% of a mixture of at least one novolac having a glass transition temperature lower than or equal to 60° C. and at least one novolac having a glass transition temperature above 60° C., 0.5 to 10% of at least one wax, 1 to 15% of at least one crosslinking agent chosen from imines and modified melamines of formula: in which R1, R2, R3, R4, R5 and R6, which are identical or different, represent a hydrogen atom or a —CH2OH, —CH2OCH3 or —CH2OCH2OCH3 radical, at least one of the radicals R1 to R6 being other than H, 0 to 10% of at least one plasticizing agent. The invention also relates to the resin composition suitable for producing the reinforcing structure and bonded abrasive articles incorporating such a structure, in particular abrasive grinding wheels.

Abstract: The present invention relates to a mat of polymer fibers capable of trapping formaldehyde which contains at least one dihydrazide. Another subject of the invention is the use of said mat, in particular as a surface covering for thermal and/or sound insulation products, in particular based on mineral wool, polystyrene or on an organic or inorganic foam.

Abstract: A reinforcing drywall tape and a method of making the same, the tape having a greige combined with a laid scrim constructed in situ on the greige and bonded to the greige by a resin coating, and a pressure sensitive adhesive fully covering an inward facing surface of the greige wherein the greige is adapted for adherence to drywall sections.

Abstract: A radiation-collecting device includes at least one radiation-collecting element and a scattering layer placed, in relation to the element, on that side on which the radiation is incident on the device. The scattering layer has a transparent fibrous structure and a transparent medium for encapsulating the fibers of the fibrous structure, the absolute value of the difference between the refractive index of the fibers of the fibrous structure and the refractive index of the encapsulating medium being equal to or greater than 0.05.

Abstract: The invention concerns a polymer dispersion free of water and volatile organic solvent for preparing a lubricating composition for glass yarns and for finishing glass yarns and assembling glass yarns, in particular for grids and fabrics. The dispersion comprises the product of polymerization of a vinyl monomer in the presence of a free radical initiator in a reactive organic dispersion medium.

Abstract: A composite material comprises: an open grid comprising at least two sets of strands. Each set of strands has openings between adjacent strands. The sets are oriented at a substantial angle to one another. A tack film is laminated to the open grid. The tack film has first and second major surfaces, such that a material of the tack film at its first and second major surfaces includes about 50% or more of resinous non-asphaltic component and about 50% or less of asphaltic component.

Abstract: A cementitious board and a reinforcement sheet for the board includes, a water vapor porous layer of glass fibers bonded together by a cured binder, and a hydrophilic coating material being mobile in slurry water to wet the binder coated glass fibers and spread a slurry of a cementitious compound, and the hydrophilic coating material being volatile to dissipate by evaporation at an elevated temperature at which the cementitious compound dries to form a dried cementitious board having both the cementitious compound and the binder coated glass fibers essentially free of the hydrophilic coating material.

Abstract: Process for surface functionalization of a glass reinforcement, characterized in that the said reinforcements are chemically modified by means of surface treatment by the action of a homogeneous plasma at atmospheric or sub-atmospheric pressure in a controlled, oxidizing or nitriding gas atmosphere, and in that the said surface portion is contacted with an aqueous impregnating solution of an organic or inorganic matrix, or directly with the matrix.

Abstract: A composite material comprises: an open grid comprising at least two sets of strands. Each set of strands has openings between adjacent strands. The sets are oriented at a substantial angle to one another. A tack film is laminated to the open grid. The tack film has first and second major surfaces, such that a material of the tack film at its first and second major surfaces includes about 50% or more of resinous non-asphaltic component and about 50% or less of asphaltic component.

Abstract: The present invention relates to a film-forming composition intended to be applied to an inner surface of a building which includes an agent capable of trapping formaldehyde chosen from compounds comprising active methylene(s), tannins and amides. Another subject matter of the present invention is the use of said film-forming composition in reducing the amount of formaldehyde in the air inside a building.

Abstract: A method of making a reinforcement sheet for a cementitious board includes applying a hydrophilic coating material on binder coated glass fibers, the hydrophilic coating material being mobile in slurry water at a surface of a slurry of a cementitious compound to dilute and disperse, and to wet and spread the slurry on the binder coated glass fibers, and the hydrophilic coating material in the slurry water being volatile to dissipate by evaporation at an elevated temperature at which the cementitious compound is dried for the binder coated glass fibers to be essentially free of the hydrophilic coating material.

Abstract: A reinforcement membrane for reinforcing a roofing membrane has first and second layers including a fiberglass mat and a scrim of low-shrinkage organic fibers; a third layer comprising nonwoven low-shrinkage organic fibers providing an added mass of the low-shrinkage organic fibers for possessing latent shrinkage while the reinforcement membrane is in tension, which latent shrinkage is released in the absence of tension thereon during a temperature increase within a range of about 10° C. to about 30° C.; and a membrane coating material bonds together the three layers in tension, without completely filling interstices among the respective fibers of the three layers, wherein the interstices are adapted to be filled with a bituminous roofing composition.

Abstract: The present invention relates to a mat of mineral fibers which comprises an agent capable of trapping formaldehyde present in particular in dwellings or offices and transportation vehicles. The agent capable of trapping formaldehyde is chosen from compounds comprising active methylene(s), hydrazides, tannins, amides, amino acids and sulfites. Another subject matter of the present invention is the processes for the manufacture of said mat of mineral fibers.

Abstract: The present invention provides thickened fabrics and reinforcements for use as a spacer or reinforcement for a matrix system. The fabric includes in a first embodiment a woven fabric comprising weft and warp yarns containing glass fibers. A portion of the weft yarns are undulated into a sinusoidal path forming a generally “C” shaped bridge between adjacent warp yarns which results in an increased thickness for the fabric. The fabric is coated with a polymeric resin or bonding agent, for substantially binding the weft yarns in the undulated condition. This invention also includes methods for making such fabric by increasing the thickness of a woven or non-woven material by such methods as applying tension to warp yarns having opposite twists during weaving operations, or using unbalanced yarns, for example.

Abstract: A method for making a reinforcement material comprises providing at least one strand of carbon fibers. A polyolefin coating is applied. A coating comprising an inner layer of a first polyolefin material and an outer layer of a second polyolefin material may be coextruded on the at least one strand. The first polyolefin material has a substantially lower viscosity than the second polyolefin material at an extrusion temperature of the coextruding step. Alternatively, polyolefin fibers may be core sheath spun on the strands to coat the strands, and the coated strands of carbon fibers formed into a woven or knit fabric or a non-woven mesh for a reinforcing a material.

Abstract: The present invention relates to a painter's canvas based on glass fibers intended to be applied to an interior surface of a building, which includes an agent capable of trapping formaldehyde chosen from compounds comprising active methylene(s), hydrazides, tannins, amides, amino acids, peptides and proteins. Another subject matter of the present invention is the process for producing said painter's canvas.