The present invention relates to a new structural class of phenalkamine, phenalkamine curing agent compositions, methods of making such phenalkamine, and methods of making such compositions. The phenalkamine curing agent compositions of the present invention can be prepared by reacting cardanol with an aldehyde compound and a mixture of methylene bridged poly(cycloaliphatic-aromatic)amines. These curing-agent compositions may be used to cure, harden, and/or crosslink an epoxy resin.

This disclosure relates to silicon modified vinyl acetate ethylene copolymers and to emulsions and articles of manufacture based on the same.

A particulate composition suitable for protection against lightning is disclosed. The particulate composition comprises of a particulate matter comprising a mineral compound, preferably black tourmaline, capable of emitting negatively charged ions continuously, a grinding auxiliary agent, and a liquid medium. The particulate composition is embedded in a substrate, coating or mixed into the granules of composite roofing to protect people, objects and structures from lightning by developing a negatively charged cloaking shield to prevent the attraction of negatively charged lightning from striking. The composition infused or applied on a subject continuously emits negative ions sufficiently producing a protective electromagnetic cloaking shield restricting the wicking action of positive ions up from ground surface and thereby restricting the formation of positive streamers that reach upwards towards the stepped leaders of lightning.

A particulate composition suitable for protection against lightning is disclosed. The particulate composition comprises of a particulate matter comprising a mineral compound, preferably black tourmaline, capable of emitting negatively charged ions continuously, a grinding auxiliary agent, and a liquid medium. The particulate composition is embedded in a substrate, coating or mixed into the granules of composite roofing to protect people, objects and structures from lightning by developing a negatively charged cloaking shield to prevent the attraction of negatively charged lightning from striking. The composition infused or applied on a subject continuously emits negative ions sufficiently producing a protective electromagnetic cloaking shield restricting the wicking action of positive ions up from ground surface and thereby restricting the formation of positive streamers that reach upwards towards the stepped leaders of lightning.

Disclosed are a composite gypsum board and a method of preparing composite gypsum board. The board contains set gypsum layers sandwiched between two cover sheets. The set gypsum layers are formed from at least stucco and water. The set gypsum layers include a board core and one or more skim coat layers. The set gypsum core makes up a substantial thickness (e.g., at least about 90%, at least about 92%, at least about 95%, or at least about 97%) of the total thickness of all the gypsum layers. A first skim coat layer is included on one side of the core, facing a first (face) cover sheet. A second skim coat layer is included on the other side of the core, facing a second (back) cover sheet. At least the second skim layer is formed from a slurry that contains starch. The stucco material generally includes a high salt impurity content, for example, when the stucco is calcined from certain sources of low-quality synthetic gypsum. For example, in some embodiments, the salts are chloride salts, e.g., sodium chloride (NaCl), potassium chloride (KCl), magnesium chloride (MgCl.sub.2), and/or calcium chloride (CaCl.sub.2).

A method of manufacturing a composition with hierarchical nanochemical bonding includes making a powder of one or more oxygen containing materials; mixing the powder either with a water solution of organic and/or inorganic acid to form an acidic slurry, or with water to form a hydrated basic slurry; and curing the slurry to form a solid. The powder comprises nanoscale particles, or microscale particles, or a mixture of nanoscale particles and microscale particles.

A cementitious adhesive composition, in particular a tile adhesive, especially for use in automatic tiling systems, includes 10-70 wt.-% of a hydraulic binder, in particular cement, 20-90 wt.-% of aggregates, in particular sand and/or calcium carbonate, and 0.01-5 wt.-% cellulose ether.

The present invention relates to a device comprising a cable and/or a cable accessory, said cable and/or said cable accessory comprising at least one composite layer obtained from a composite composition based on at least one aluminosilicate geopolymer composition and on at least one low-viscosity organic polymer or oligomer, and also to the process for preparing same.

A composition consisting essentially of (a) 1 to 30% by weight of a 1 to 90% by weight aqueous phosphoric acid and/or a hydrogen phosphate; (b) 1 to 40% by weight of a compound selected from the group of oxides, hydroxides and oxide hydrates of magnesium, calcium, iron, zinc and copper; (c) 40 to 95% by weight of a particulate filler selected from the group of glass; mono-, oligo- and polyphosphates of magnesium, calcium, barium and aluminium; calcium sulphate; barium sulphate; simple and complex silicates; simple and complex aluminates; simple and complex titanates; simple and complex zirconates; zirconium dioxide; titanium dioxide, aluminium oxide; silicon oxide; silicon carbide; aluminium nitride; boron nitride and silicon nitride; (d) 1 to 10% by weight of an urea compound selected from the group consisting of imidazolidine-2-on, allantoin and imidazolidinyl urea; and (e) 0 to 15% by weight of a component differing from (a) to (d).

A curable composition comprises (A) a first siloxane oligomer being free from a siloxane unit represented by the following formula (I) and containing an alkoxy-group-containing siloxane unit, (B) a second siloxane oligomer containing a siloxane unit represented by the formula (I) and an alkoxy-group-containing siloxane unit, (C) a silicone oil having a kinetic viscosity at 25 C. of not less than 100 mm.sup.2/s, (D) at least one curing catalyst selected from the group consisting of a metal alkoxide, a metal chelate compound, and a metal carboxylate, and (E) a solvent containing an organic solvent having a vapor pressure at 20 C. of not less than 1 kPa.