Mineral wool insulation products are provided. The mineral wool insulation includes a plurality of mineral wool fibers and a wax emulsion applied to the mineral wool fibers. The wax emulsion imparts excellent water resistance and thermal performance properties to the mineral wool insulation.

The invention is directed to a formaldehyde-free binder composition for mineral fibres comprising at least one phenol containing compound, at least one protein and at least one divalent metal cation M2+ containing compound.

The invention is directed to a formaldehyde-free binder composition for mineral fibres comprising at least one phenol containing compound, at least one protein and at least one divalent metal cation M2+ containing compound.

A system for spraying products onto glass fibers, designed to spray at least one sizing composition and an anti-dust agent onto the glass fibers includes two separate annular spraying elements which are successively arranged on the path of the glass fibers, the two spraying elements including a first annular element for spraying the sizing composition and a second annular element for spraying the anti-dust agent, each one embodied by at least one specific annular crown surrounding the glass fibers. The second annular element for spraying the anti-dust agent is arranged downstream of the first annular element for spraying the sizing composition in relation to the path of the glass fibers.

A system for spraying products onto glass fibers, designed to spray at least one sizing composition and an anti-dust agent onto the glass fibers includes two separate annular spraying elements which are successively arranged on the path of the glass fibers, the two spraying elements including a first annular element for spraying the sizing composition and a second annular element for spraying the anti-dust agent, each one embodied by at least one specific annular crown surrounding the glass fibers. The second annular element for spraying the anti-dust agent is arranged downstream of the first annular element for spraying the sizing composition in relation to the path of the glass fibers.

Provided is a glass strand that, when mixed with mortar, is less likely to decrease the fluidity of the mortar and can 5 effectively increase the mechanical strength of a cementitious material. A glass strand includes: a plurality of glass filaments containing 12% by mass or more ZrO.sub.2 and 10% by mass or more R.sub.2O (where R represents at least one selected from Li, Na, and K); and a coating covering surfaces of the glass filaments, 10 wherein the coating contains polyvinyl acetate resin and polyether-based urethane resin, and wherein a content of the polyether-based urethane resin in the coating is, in solid content ratio, not less than 10% by mass and not more than 90% by mass.

The purpose of the present invention is to provide a fiber-sizing agent which when applied to an inorganic reinforcement material contained in a resin composition, can provide a molded article having excellent impact resistance and high surface gloss properties. The fiber-sizing agent according to the present invention contains a modified olefin wax (A), a polyolefin resin (B), and a silane-coupling agent (C), wherein the mass ratio (A)/(B) of the modified olefin wax (A) to the polyolefin resin (B) is in the range of 0.2-10.

The purpose of the present invention is to provide a fiber-sizing agent which when applied to an inorganic reinforcement material contained in a resin composition, can provide a molded article having excellent impact resistance and high surface gloss properties. The fiber-sizing agent according to the present invention contains a modified olefin wax (A), a polyolefin resin (B), and a silane-coupling agent (C), wherein the mass ratio (A)/(B) of the modified olefin wax (A) to the polyolefin resin (B) is in the range of 0.2-10.

Mineral fiber processing is carried out by applying a dedust composition comprising a non-polar, plant-based, bodied oil having an acid value that is less than or equal to about 5 mg KOH/g, an iodine value of 60 to 120, a tan delta ranging from 0.0002 to 0.01 (at 25 C.), and a viscosity of from about 350 cSt to about 750 cSt at 40 C. to mineral fiber. The non-polar, plant-based, bodied oil provides a dedust fluid that is sourced from renewable resources and is surprisingly effective as a dedusting agent in the challenging environment of preparation of bonded mineral fiber-containing products.

Mineral fiber processing is carried out by applying a dedust composition comprising a non-polar, plant-based, bodied oil having an acid value that is less than or equal to about 5 mg KOH/g, an iodine value of 60 to 120, a tan delta ranging from 0.0002 to 0.01 (at 25 C.), and a viscosity of from about 350 cSt to about 750 cSt at 40 C. to mineral fiber. The non-polar, plant-based, bodied oil provides a dedust fluid that is sourced from renewable resources and is surprisingly effective as a dedusting agent in the challenging environment of preparation of bonded mineral fiber-containing products.