A thermally expandable fire-resistant material composition comprising an adhesive base and an a thermally expandable compound, wherein the thermally expandable fire-resistant material composition is flowable at an ordinary temperature or at a temperature lower than the expansion onset temperature of the thermally expandable fire-resistant material, and is solidifiable or curable.

The invention relates to an agent, in particular a flame retarding agent and/or a fire retarding agent, for reducing the combustibility and flammability of various materials or matters, e.g. like wood and wood products, textiles, paper, cardboard, fibers and fabrics, paints, including composites and/or composite materials therewith, the manufacture of the composition and methods of using the agent and/or the corresponding combination of its constituents to reduce combustibility and flammability. An exemplary composition in dry form (powder) for 1 l of aqueous solvent, in particular for 1 l of water, contains borax in an amount of 30 to 70 wt.-%, boric acid of 30 to 70 wt.-%, sodium chloride (NaCl) in a maximum amount of less than 5 wt.-%, and, if desired, urea in an amount up to 5 g; based in each case on the composition as 100 wt.-%. However, the compositions are preferably free from urea.

An intumescent mesh has a flexible grid with a plurality of strands that form a series of openings in the flexible grid, and an intumescent coating applied to the flexible grid. The intumescent coating is made of an expandable graphite and a polymer-based carrier as ingredients and having an activation temperature above which the intumescent coating swells. The grid is sized such that the intumescent coating permits airflow through the flexible grid until the intumescent coating is exposed to temperatures at or above the activation temperature, whereupon the intumescent coating swells to seal the openings and prevent air flow through the flexible grid.

The invention relates to compositions comprising as component (A) 0.1% to 99.9% by weight of phase II ammonium polyphosphate and as component (B) 0.1% to 99.9% by weight of phase I and/or phase III, IV, V and/or VI ammonium polyphosphate, where the sum total of the components is 100% by weight, and to the use thereof in intumescent coatings.

A process for the application of an intumescent coating system to a substrate comprising (I) applying to a substrate an intumescent coating composition comprising i. an epoxy-based binder; ii. a curing agent; iii. an expansion agent; iv. an acid generating compound; and v. at least 5 wt. % water; and allowing said composition to cure to form an intumescent coating layer; (II) applying to a cured or partially cured intumescent coating layer, a top coat composition comprising an acrylic-based binder, a polyurethane binder or a silicone-based binder and at least 10 wt. % water so as to form a top coat layer.

A fire-retardant laminate consists of a metallic foil having first and second surfaces, a primer layer having first and second surfaces, the first surface of the primer layer being attached to the first surface of the metallic foil and a fire-retardant coating applied on the second surface of the primer layer, wherein the fire-retardant coating comprises an aromatic isocyanate component, a polyol component and an intumescent component.

The invention relates to flame-retardant foam coatings for textile sheet products, wherein the coatings include plate-like expandable graphite which has a reduced salt content and a particle distribution with a proportion of >80 percent by weight having a diameter of at least 0.2 mm, and/or a minimum proportion of 70% having a mesh size of >50 mesh (0.3 mm), at least one binder and at least one foam stabilizer, and also processes for the production thereof, the use thereof for producing textile sheet products and also textile sheet products having such flame-retardant foam coatings.

A flexible foam composition includes a flexible foam body having a surface, which flexible foam is polyurethane and/or latex flexible foam, and an expandable graphite layer on the surface or within the foam surface adjacent to the surface. The flexible foam composition with the expandable graphite layer imparts improved flame retardant properties to the composition.

A coating composition includes a first composition comprising a polymeric binder comprising a hyperbranched polymer or a polymer comprising a covalently bonded surfactant; a second composition comprising a coagulating agent; and an additive comprising an intumescent agent, a vibration damping agent, an insulation agent, or a combination of two or more thereof; wherein: the additive is present in the first composition, the second composition, or both the first and second compositions; the intumescent agent comprises an acid source, a carbon source, and a gas forming agent; the vibration damping agent comprises a first filler; the insulation agent comprises a second filler; and the first composition and the second composition are configured to form a coating within 30 seconds of application to a substrate, and the coating is non-sagging, water-resistant, and dry-to-the touch.

Fire impregnation substance is produced by polymerization of non-toxic components in such a way that pentaerythritol (5% to 90% of the mass) and ammonium polyphosphate (5% to 90% of the mass) are added to the water (30% to 96% of the mass) with temperature from 5 C. to 98 C. and the solution is mixed until it is pure. The mutual ratio of the components of pentaerythritol and ammonium polyphosphate can range from 1:18 to 18:1 During the production of the cellulose product or fibrous wood products such as chipboards or particle boards the wood chips or sawmill shavings are dipped in the impregnation substance before connecting and pressing, or the impregnation substance is added to adhesive or binder, respectively, which coats the chips or shavings before pressing into desired product. The cores of microintumescence inside the material, mainly on surfaces of the original chips, shavings or fibers subsequently produce gradually activate layers preventing the permeation of the fire's effects.