A composition for addition to a ceiling tile, flooring product, or other construction product may include microfibrillated cellulose and optionally an inorganic particulate material. The ceiling tile, flooring product, or other construction product may further include perlite, mineral wool, wood pulp, starch and other additives, where the wood pulp and other inorganic particulate materials are bonded to the microfibrillated cellulose. Methods of manufacturing the compound are also disclosed.

A composition for addition to a ceiling tile, flooring product, or other construction product may include microfibrillated cellulose and optionally an inorganic particulate material. The ceiling tile, flooring product, or other construction product may further include perlite, mineral wool, wood pulp, starch and other additives, where the wood pulp and other inorganic particulate materials are bonded to the microfibrillated cellulose. Methods of manufacturing the compound are also disclosed.

A composition for addition to a ceiling tile, flooring product, or other construction product may include microfibrillated cellulose and optionally an inorganic particulate material. The ceiling tile, flooring product, or other construction product may further include perlite, mineral wool, wood pulp, starch and other additives, where the wood pulp and other inorganic particulate materials are bonded to the microfibrillated cellulose. Methods of manufacturing the compound are also disclosed.

Fiber sheets, structures comprising the fiber sheets and the use of the sheets. The invention further relates to biodegradable and/or recyclable products comprising the fiber sheets, useful in replacing non-biodegradable products.

A method of treating tough inorganic fiber bundles including opening a plurality of the tough inorganic fiber bundles such that tough inorganic fibers can be dispersed in a liquid slurry to lay down a homogenous fiber aggregate, wherein the tough inorganic fibers have a crush settle volume of greater than 250 ml, optionally greater than 450 ml. Also, a method of treating tough inorganic fiber bundles including dispersing a plurality of the tough inorganic fiber bundles in a slurry with a dilution of about 0.1% to about 2%, optionally about 0.1% to about 1%, effective to lay down a homogenous fiber aggregate, wherein the tough inorganic fibers have a crush settle volume of greater than 250 ml, optionally greater than 450 ml.

The invention relates to fiber sheets, to structures comprising the fiber sheets and to the use of the sheets. The invention further relates to biodegradable and/or recyclable products comprising the fiber sheets, useful in replacing non-biodegradable products.

A fibre mat, for example a monolith support mat or end cone insulator, the mat comprising inorganic fibres having a pressure retained value at 10 minutes at 900 C. of greater than 20 kPa; and preferably a binder. The inorganic fibres comprise X and Y and K.sub.2O, the sum of which is greater than 95 wt. % wherein X is the sum of SiO.sub.2 and ZrO.sub.2 and Y is the sum of Al.sub.2O.sub.3 and La.sub.2O.sub.3, wherein ZrO.sub.2 and La.sub.2O.sub.3 is each present in up to 10 wt. % of the total weight of the inorganic fibres.

A fibre mat, for example a monolith support mat or end cone insulator, the mat comprising inorganic fibres having a pressure retained value at 10 minutes at 900 C. of greater than 20 kPa; and preferably a binder. The inorganic fibres comprise X and Y and K.sub.2O, the sum of which is greater than 95 wt. % wherein X is the sum of SiO.sub.2 and ZrO.sub.2 and Y is the sum of Al.sub.2O.sub.3 and La.sub.2O.sub.3, wherein ZrO.sub.2 and La.sub.2O.sub.3 is each present in up to 10 wt. % of the total weight of the inorganic fibres.

To provide an inorganic fiber sheet with high workability, which is also excellent in tackiness or adhesiveness when a pressure-sensitive adhesive or an adhesive has been applied thereto. The inorganic fiber sheet is a non-woven fabric containing inorganic fibers. The inorganic fiber sheet has a thickness T of 1 mm or more and contains shots derived from inorganic fibers and having a diameter of 45 ?m or more. The shots included in the inorganic fiber sheet is distributed in a sheet thickness direction as represented by Formula 1. Provided that Formula 1 is 1?Y/X? 0.11, where X represents a total weight of the shots in the inorganic fiber sheet per unit area / a total weight of the inorganic fiber sheet per unit area, and Y represents a weight of the shots per unit area included in the inorganic fiber sheet from which a portion having a thickness t and satisfying 0?t?s is removed, provided, however, that 0.10 mm?s?0.55 mm, with a wire side surface of the inorganic fiber sheet as a reference surface / a weight per unit area of the inorganic fiber sheet from which the portion having the thickness t is removed with the wire side surface of the inorganic fiber sheet as the reference surface.

To provide an inorganic fiber sheet with high workability, which is also excellent in tackiness or adhesiveness when a pressure-sensitive adhesive or an adhesive has been applied thereto. The inorganic fiber sheet is a non-woven fabric containing inorganic fibers. The inorganic fiber sheet has a thickness T of 1 mm or more and contains shots derived from inorganic fibers and having a diameter of 45 ?m or more. The shots included in the inorganic fiber sheet is distributed in a sheet thickness direction as represented by Formula 1. Provided that Formula 1 is 1?Y/X? 0.11, where X represents a total weight of the shots in the inorganic fiber sheet per unit area / a total weight of the inorganic fiber sheet per unit area, and Y represents a weight of the shots per unit area included in the inorganic fiber sheet from which a portion having a thickness t and satisfying 0?t?s is removed, provided, however, that 0.10 mm?s?0.55 mm, with a wire side surface of the inorganic fiber sheet as a reference surface / a weight per unit area of the inorganic fiber sheet from which the portion having the thickness t is removed with the wire side surface of the inorganic fiber sheet as the reference surface.