Abstract: A method of manufacturing a mineral fiber thermal insulation product comprises the sequential steps of: Forming mineral fibers from a molten mineral mixture; spraying a substantially formaldehyde free binder solution on to the mineral fibers, the binder solution comprising: a reducing sugar, an acid precursor derivable from an inorganic salt and a source of nitrogen; Collecting the mineral fibers to which the binder solution has been applied to form a batt of mineral fibers; and Curing the batt comprising the mineral fibers and the binder which is in contact with the mineral fibers by passing the batt through a curing oven so as to provide a batt of mineral fibers held together by a substantially water insoluble cured binder.

Abstract: A two-part sizing composition including a precursor size composition and a binder composition, the binder composition being substantially free of any aminosilane coupling agent for is provided for the production of reinforcing fiber materials that exhibit little or no coloration. The two-part sizing composition may be advantageously employed to make substantially colorless, densified fiber pellets of a reinforcing fiber material. The densified fiber pellets may be produced by applying the sizing composition to reinforcing fiber strands, chopping the reinforcing fiber strands to form chopped strand segments, applying the binder composition, and palletizing and densifying the coated chopped strand segments to form flowable densified fiber pellets.

Abstract: A binder slurry for a continuous filament mat used in a phenolic pultrusion system comprising a phenolic compatible silane, a non-ionic surfactant, a defoamer, water, an organic acid and a bisphenol epoxy powdered resin having a thermally active dicyandiamide cross-linking resin. The binder slurry resin is unique in that the bisphenol epoxy powdered resin having a thermally active dicyandiamide cross-linking resin is compatable with presently available phenolic resins, and as such pultruded parts made have improved surface and mechanical properties as compared with traditional polyester type binder slurries which are not compatable with phenolic resins. Continuous filament mats made with the new binder slurry also may also be made into epoxy prepreg that can be used to make composite parts.

Abstract: A method of inhibiting the growth of microorganisms such as bacteria, fungi, and molds in fiberglass products by adding an anti-microbial to a binder solution to impregnate glass fibers with the anti-microbial in-line during the manufacturing process and before the curing process is provided. Suitable examples of the anti-microbial include zinc 2-pyrimidinethiol-1-oxide, 1-[2-(3,5-Dichloro-phenyl)-4-propyl-[1,3]dioxolan-2-ylmethyl]-1H-[1,2,4]triazole, 4,5-Dichloro-2-octyl-isothiazolidin-3-one, 2-Octyl-isothiazolidin-3-one, 5-Chloro-2-(2,4-dichloro-phenoxy)-phenol, 2-Thiazol-4-yl-1H-benzoimidazole, 1-(4-Chloro-phenyl)-4,4-dimethyl-3-[1,2,4]triazol-4-ylmethyl-pentan-3-ol, 10, 10′ Oxybisphenoxarsine, 1-(Diiodo-methanesulfonyl)-4-methyl-benzene and mixtures thereof. The fiberglass product formed by the method of the present invention is substantially free of bacteria, fungi, and molds.

Abstract: A method is disclosed for forming coated fibers suitable for making a composite article. A plurality of fibers are coated with an aqueous- or non-aqueous-based chemical treatment containing a curable resin such that the resin on the fibers is in a partially cured or uncured state. The coated fibers may then be formed into a composite article in a subsequent forming operation, for example, by filament winding, pultrusion, weaving, knitting, or extrusion coating. The strand of fibers may also be shaped into a preform which can be used in resin transfer molding (RTM) and injection molding processes.

Abstract: The invention relates to a method for manufacturing a product on a basis of mineral wool, including the steps of: i) preparing a phenol-formaldehyde resin, ammonia and a sugar preparation containing aqueous preparation; ii) applying the preparation to the mineral wool; and iii) curing the mineral wool with forming of the product, and to a kit for preparing the mineral wool product, including a container holding the resin preparation and a container holding the sugar preparation.

Abstract: A method of moulding, notably injection or compression moulding, of a composite product from an impregnation paste based upon thermosetting resin or resins and a reinforcement of glass threads, by supplying the moulds with an impregnation paste and reinforcement in the form of coated chopped direct rovings incorporated into the paste, the coating material of which includes an adhesive agent based upon polyurethane or polyurethanes.