Abstract:
An evacuated jacket for thermal insulation comprises a discontinuous or porous, organic or inorganic filling material arranged inside an envelope made with at least one multi-layer barrier sheet (1) of substantially rectangular shape, which comprises at least one polymeric or inorganic central layer (2) having barrier properties towards atmospheric gases, an upper layer (4) and a lower layer (3), both of a polymeric material. The polymeric material which forms said upper layer (4) and the polymeric material which forms said lower layer (3) of the barrier sheet (1) are mutually heat-sealable and said barrier sheet (1) is folded up so as to superimpose two opposite sides (5, 6) thereof which are welded to each other by melting said upper layer (4) at one margin (6) and said lower layer (3) at the other margin (5). The present invention also relates to a process for manufacturing said evacuated jacket for thermal insulation.
Abstract:
The invention relates to a method for producing water-driven, fine-cell rigid foams containing urethane and/or isocyanurate groups by reacting polyisocyanates with a polyol component in the form of an emulsion. The invention also relates to foam-mouldable open-cell polyurethane foams.
Abstract:
The invention relates to a vacuum insulating panel consisting of a) two foam pads (3, 4) placed flat on top of each other, where one pad consists of open-cell polystyrene foam (4) and the other pad of open-cell polyurethane foam (3), and b) a foil (1) enclosing both pads, which foil is evacuated and sealed in a gas-tight manner. The invention further relates to the use of said vacuum insulating panels for producing insulating elements of the type used, for example, for the outer walls of refrigerators.
Abstract:
The pipeline described comprises an outer pipe (2) with a medium-conveying pipe (1) disposed a certain radial distance inside it, the medium-conveying pipe (1) being surrounded by thermal insulation (3). The medium-conveying pipe (1) rests on spaced anchor points (6) which press axially against the outer pipe (2). The thermal insulation (3) consists of compression-resistant shaped elements, which are made in particular from glass or mineral micro-fibres and which are sufficiently resistant to compression that the medium-conveying pipe (1) is held by the insulation at a suitable insulating distance from the inside wall of the outer pipe (2).
Abstract:
A Closed Cell Cellulose Insulation (C3I) product is provided. The C3I is formed from small Closed-Cell Balloons (CCB) of Fire-Resistant Paper (FRP). An optional version of the C3I product includes the addition of one or more other components that may be selected to enhance the performance of the CCBs, such as cellulosic and non-cellulosic additives including, but not limited to, Conventional Open Cell Cellulose (COCC) material to fill voids between the CCBs. The additives to the CCBs can improve the R-value of the insulation above what can be achieved with COCC alone or CCBs alone.
Abstract:
A refrigerator includes a wrapper having an opening with a front edge. A liner includes an opening and a front edge. A thermal bridge interconnects the wrapper and the liner to form a vacuum insulated cavity therebetween. The thermal bridge includes an outwardly opening channel and first and second inwardly opening channels. The front edge of wrapper is received in the first inwardly opening channel, and the front edge of the liner is received in the second inwardly opening channel. The second inwardly opening channel is inset relative to the first inwardly opening channel on the thermal bridge. A conduit is disposed within the outwardly opening channel and is configured to circulate a heated medium. The wrapper and liner are contemplated to be comprised of conductive materials, such sheet metal, while the thermal bridge is comprised of a thermally resistant material, such as a polymeric material.