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.

A thermal insulating member includes a multilayer complex having first layer which is made of a hydrophobic aerogel; a second layer which is made of a fiber wool; and a metallic foil, called outer layer. The thickness of the first layer decreases along a variability direction of the multilayer complex. The thermal insulating member can be arranged around a vehicle component which extends in a longitudinal direction and which has a first end at a first temperature T1 and a second end at a second temperature T2 lower than T1, in use. In the mounted state, the variability direction of the multilayer complex is parallel the longitudinal direction of the vehicle component and the greatest thickness of the first layer is closer to the first end.

The present invention discloses moulded laminated reinforced composite glass which is mechanically strong composite of high optical quality and transparency. The moulded laminated reinforced composite glass comprises 10% to 20% (by vol.) of glass; and 80% to 90% (by vol.) nano composite liquid system comprising at least one resin selected from polyester and/or epoxy, at least one curing system and at least one nano particle uniformly dispersed in the resin. Another moulded composite glass comprises 10% to 20% (by vol.) of glass; 60% to 80% (by vol.) nano composite liquid system comprising at least one resin selected from polyester and/or epoxy, at least one curing agent and at least one nano particle uniformly dispersed in the resin and 5% to 10% (by vol.) of pre-stretched fabric embedded within the resin matrix. It also discloses a system and processes for the production of said moulded laminated reinforced composite glass.

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.

Elongated ventilation duct comprising a fibre layer (2) without any splices and an inner layer (3) surrounding an elongated flow space (4), wherein the fibre layer comprises mineral fibres and a binder, compressed into a desired duct shape, the fibres having a melting point over 800 degrees Celsius, the inner layer is a stainless-steel foil having a thickness of 0.01-0.3 mm, facing the flow space.

A method of manufacturing a ventilation duct having a fibre layer (2) and an inner layer (3) of steel foil, wherein a binder solution is sprayed on the fibre layer, whereafter the fibre layer is compressed into a duct shape, having an elongated flow space (4), under heated conditions so that water in the binder solution evaporates, and bringing the inner layer into the flow space of the duct, which inner layer seals the flow space of the duct from the fibre layer.

An insulated HVAC duct component such as a transition box includes a first insulation layer and a second, different insulation layer. The transition box includes at least four sidewalls and one of a top and a back wall, the transition box further including a first access port and a second access port, the first access port having a different cross section than the second access port, one of the access ports being spaced from a nearest sidewall by less than 2 inches. The first insulation layer is located along an inside surface of the box. The second different insulation layer overlies the first insulation layer, the second different insulation layer having an air impervious surface, wherein the combined thickness of the first insulation layer and the second different insulation layer is less than 2 inches.

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, comprises 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.

A ceiling material body (1a) includes a substrate layer (2) formed from rigid urethane foam; a first fiber-reinforced layer (3) provided on an in-cabin side of the substrate layer (2); a second fiber-reinforced layer (4) provided on an out-cabin side of the substrate layer (2); a surface layer (5) provided on an in-cabin side of the first fiber-reinforced layer (3); and a back layer (6) provided on an out-cabin side of the second fiber-reinforced layer (4). The second fiber-reinforced layer (4) includes a glass paper (7) overlaying the substrate layer (2) and a glass mat (8) overlaying an opposite side of the glass paper (7) from the substrate layer (2).

An insulated HVAC duct component such as a transition box includes a first insulation layer and a second, different insulation layer. The transition box includes at least four sidewalls and one of a top and a back wall, the transition box further including a first access port and a second access port, the first access port having a different cross section than the second access port, one of the access ports being spaced from a nearest sidewall by less than 2 inches. The first insulation layer is located along an inside surface of the box. The second different insulation layer overlies the first insulation layer, the second different insulation layer having an air impervious surface, wherein the combined thickness of the first insulation layer and the second different insulation layer is less than 2 inches.

In combination, a drywall panel perforated front to back across the full area of the panel, relatively thin film across a backside of the panel with uniform low tension, adhesive in discrete lines between the backside of the panel and isolating perforations from other perforations, the adhesive maintaining the film off of the drywall adjacent the perforations, areas of the film exceeding respective areas of the panel covered thereby such that the film is loose from the drywall at the perforations and capable of vibrating when subjected to sound in the perforations, the film preventing air flow through the perforations.