The present invention relates to an apparatus (100) for crimping a sheet of material (6), the apparatus comprising: a first (9) and a second (10) facing crimping rollers defining a first (1) and a second (22) rotational axis, respectively, the first and second axis being parallel to each other, wherein at least one of the first and second crimping roller includes a plurality of corrugations; an angle changing device, the angle changing device being adapted to change a crimping angle (11) formed between a fixed reference plane (12) and a movable plane (13) containing the first and the second rotational axis.

Devices and methods for compressing thermal insulation material into blocks of insulation are disclosed which include a support surface for the compressed blocks of insulation, a compression device with a compression surface, and a feeding device for feeding thermal insulation material. By adapting the compression device for reciprocal movement between a first position, wherein the feeding device is allowed to feed thermal insulation material to a position on the support surface, and a second position, wherein, during movement from the first position to the second position of the compression device, thermal insulation material fed by the feeding device is compressed, highly compressed blocks of thermal insulation material are obtained that are suitable for use with known shredding devices.

The present invention relates to a method of providing thermal and/or acoustic insulation to a structure, comprising the steps of: providing a substrate which comprises fibres; applying the substrate to the structure; blending the substrate with a binder composition before, during or after application of the substrate to the structure; allowing curing of the binder composition after the substrate and the binder composition have been applied to the structure; wherein the binder composition comprises at least one hydrocolloid. The present invention also relates to an insulated structure obtainable by said method.

The invention relates to a thermal insulation product based on mineral wool comprising mineral fibers, the product comprising two main faces and longitudinal and transverse edges perpendicular to the main faces, the product being characterized by the following orientation fractions: a longitudinal orientation fraction greater than or equal to 48%, or even 50%, along an angle of more or less 6? with respect to the plane of the main faces, when the mineral fibers are counted only in a longitudinal cross-section, and a mean orientation fraction greater than or equal to 40%, or even 45%, along an angle of more or less 6? with respect to the plane of the main faces, when the mineral fibers are counted both in a transverse cross-section and in a longitudinal cross-section.

The invention allows the insulating power of a thermal insulation product based on mineral wool to be improved without increasing its thickness.

A method and a mineral wool product include a multiple of lamellae, such as a sandwich panel core. The product includes a plurality of lamellae cut from a mineral wool web, and bonded together by applying an adhesive on the surfaces of two adjacent lamellae to form a web-like product, wherein the adhesive comprises at least one hydrocolloid.

The invention relates to a mineral wool product comprising mineral fibres bound by a cured binder wherein the binder in its uncured state comprises at least one protein, and at least one enzyme.

The invention relates to a thermal insulation product based on mineral wool comprising mineral fibers, the product comprising two main faces and longitudinal and transverse edges perpendicular to the main faces, the product being characterized by the following orientation fractions: a longitudinal orientation fraction greater than or equal to 48%, or even 50%, along an angle of more or less 6? with respect to the plane of the main faces, when the mineral fibers are counted only in a longitudinal cross-section, and a mean orientation fraction greater than or equal to 40%, or even 45%, along an angle of more or less 6? with respect to the plane of the main faces, when the mineral fibers are counted both in a transverse cross-section and in a longitudinal cross-section. The invention allows the insulating power of a thermal insulation product based on mineral wool to be improved without increasing its thickness.

The invention relates to a water-based coating composition for heat insulating building surfaces, the coating composition comprising in the range of from 55 to 90 vol %, preferably of from 60 to 80 vol % hollow microspheres, in the range of from 1 to 30 wt % of a dispersed acrylic binder polymer, in the range of from 0.1 to 3 wt % of a thickener, in the range of from 40 to 80 wt % water; and in the range of from 0.05 to 5 wt % of additives selected from the group consisting of biocides, anti-foaming agents, surfactants, dispersants, and combinations of two or more thereof, wherein the coating composition is substantially free of non-hollow mineral and metallic fillers and is substantially free of hydraulic binders, and wherein the coating composition has a density of less than 500 kg/m3. The invention further relates to a method for applying such coating composition by using a notched trowel for applying a ridged coating layer and a non-woven sheet of glass fiber to smoothen such layer; and to a kit of parts comprising such coating composition, a non-woven sheet of glass fiber, and a notched trowel.

The invention relates to a formaldehyde-free binder composition for mineral fibres comprising at least one phenol and/or quinone containing compound, and at least one protein.

The invention relates to a method of bonding together surfaces of two or more elements, whereby at least one of the two or more elements is a mineral wool element, said mineral wool element(s) being bound by a mineral wool binder, the method comprising the steps of providing two or more elements; applying an adhesive to one or more of the surfaces to be bonded together before, during or after contacting the surfaces to be bonded together with each other; curing the adhesive, wherein the adhesive comprises at least one protein; at least one phenol and/or quinone containing compound, and/or at least one enzyme.