An object of the present invention is to provide an aluminum phospite having spherical shape. An aluminum phosphite of the present invention has the following formula.

Al.sub.x(OH).sub.y(HPO.sub.3).sub.3.zH.sub.2O

wherein: x represents 2.01 or more and 2.50 or less, y represents 0.03 or more and 1.50 or less, and z represents an integer of 0 to 4, respectively.

An intumescent coating material, the material comprising first and second parts mixable together so that the material will cure by an addition reaction in the presence of a metallic catalyst. The first part including a polydiorganosiloxane polymer having at least two unsaturated groups per molecule. The first part also including the metallic catalyst and a reinforcing filler. The second part including an organohydrogensiloxane crosslinker described by formula R.sup.1.sub.3Si(OSiR.sup.2.sub.2).sub.x(OSiMeH).sub.yOSiR.sup.1.sub.3, where each R.sup.2 is independently selected from saturated hydrocarbon radicals comprising from 1 to 10 carbon atoms or aromatic hydrocarbon radicals and each R.sup.1 is independently selected from hydrogen or R.sup.2, x is zero or an integer and y is an integer. The organohydrogensiloxane has at least three SiH bonds per molecule.

The present disclosure relates to intumescent fireproofing coatings and methods to apply these coatings. In particular, the disclosure relates to an intumescent composition having a first epoxy resin layer containing a first intumescent material and a reinforcement mesh, wherein the reinforcement mesh has an adhesive applied to only one surface thereof. After the reinforcement mesh/adhesive is applied to the first epoxy resin layer, a second epoxy resin layer containing a second intumescent material is generally applied thereon.

A method of forming a crosslinked polyphenol, the method comprising: reacting a bio-based phenolic compound comprising at least one phenolic hydroxyl group, with a crosslinking agent comprising at least two functional groups reactive with the phenolic hydroxyl group, wherein the at least two functional groups are each independently a halogen group, acid halide group, sulfonyl halide group, glycidyl group, anhydride group, or a combination comprising at least one of the foregoing, to provide the crosslinked polyphenol.

The present invention relates to environmentally friendly flame retardant materials based on renewable resources and industrial waste streams. The materials have advantageous intumescent properties, charring, gas phase radical traps and thermal stability. The present invention further relates to processes for the preparation of the flame retardant materials and to plastic materials comprising said flame retardant materials.

A free-standing solid composite intumescent structure has at least one bendable metal mesh, preferably at least two, secured on or in a bendable intumescent sheet material. The structure is bendable by a bending force into a shape at a temperature above 10 C. while retaining the bended shape when the bending force is removed. The intumescent sheet material has 10 wt % or more, based on total weight of the sheet material, of a polymeric resin; inorganic filler; and, an intumescent component. Fire protection barriers can be made from the free-standing solid composite intumescent structure, which can be used in fire protection systems where the fire protection barrier is installed on a substrate, for example steel building elements.

The present invention relates to an intumescent coating composition, an intumescent multi-component coating product, methods for using the intumescent coating composition or the intumescent multi-component coating product, substrates coated with the intumescent coating composition or the intumescent multi-component coating product. The intumescent coating composition and the intumescent multi-component coating product of the present invention may have excellent low temperature resistance properties and anti-fire properties.

A high voltage battery module includes a plurality of battery cells, a plurality of cooling fins dispersed between the battery cells, and a frame for holding the plurality of battery cells and the plurality of fins. An intumescent layer is proximate to at least one battery module component selected from the battery cells, the plurality of cooling fins, and the frame. The intumescent layer includes sodium silicate having formula Na.sub.2SiO.sub.3, pentaerythitol, a resin that is cross-linked by melamine, boron nitride particles, and triammonium phosphate.

A fire protection composition contains a binder on the basis of an alkoxysilane-functionalized polymer and a liquid carbon supplier. The fire protection composition allows application in a simple and rapid manner of coatings having the layer thickness required for the particular fire resistance time, the layer thickness being reduced to a minimum while achieving a good fireproofing effect. The fire-protection composition is formulated as a multi-component system. The fire-protection composition is particularly suitable for fire protection, especially as a coating of construction elements such as steel carriers.

The present invention relates to an intumescent coating composition comprising: (a) a polyepoxy-functional compound; (b) a beta-hydroxy ester of (meth)acrylic acid comprising a plurality of beta-hydroxy (meth)acrylic ester groups; (c) a compound bearing a plurality of functional groups that are reactive with the epoxy groups of the polyepoxy-functional compound (a) and the (meth)acrylic ester groups of the beta-hydroxy ester of (meth)acrylic acid comprising a plurality of beta-hydroxy (meth)acrylic ester groups; and (d) a compound providing an expansion gas upon thermal decomposition; wherein compounds (a) to (d) differ from each other, a method for coating a substrate with said intumescent coating composition and to a substrate at least partially coated with a coating deposited from said intumescent coating composition.