Abstract: The present invention relates to a saddle underlay (10) for placement on a riding animal, comprising at least one layer made of a sheet structure (11), the sheet structure (11) being formed from a plurality of spring members (14). In order to ensure improved ventilation, it is proposed that at least one spring member (14) has a passage (16) for air circulation and for discharging moisture. Furthermore, the invention relates to a saddle system (40) comprising a saddle underlay (10) according to the invention.

Abstract: A spring element unit for a padding element, especially a mattress, comprises a plurality of spring elements. The spring element consists of an open-cell polyurethane flexible foam material and comprises at least one recess. Such a spring element unit is used in a padding element, especially a mattress, which comprises a base body for receiving the spring element unit. Such a spring element unit prevents a build-up of heat and humidity between the body and the supporting padding element.

Abstract: A spring element unit for a padding element, especially a mattress, comprises a plurality of spring elements. The spring element consists of an open-cell polyurethane flexible foam material and comprises at least one recess. Such a spring element unit is used in a padding element, especially a mattress, which comprises a base body for receiving the spring element unit. Such a spring element unit prevents a build-up of heat and humidity between the body and the supporting padding element.

Abstract: A spring element unit for a padding element, especially a mattress, comprises a plurality of spring elements. The spring element consists of an open-cell polyurethane flexible foam material and comprises at least one recess. Such a spring element unit is used in a padding element, especially a mattress, which comprises a base body for receiving the spring element unit. Such a spring element unit prevents a build-up of heat and humidity between the body and the supporting padding element.

Abstract: A spring element unit for a padding element, especially a mattress, comprises a plurality of spring elements. The spring element consists of an open-cell polyurethane flexible foam material and comprises at least one recess. Such a spring element unit is used in a padding element, especially a mattress, which comprises a base body for receiving the spring element unit. Such a spring element unit prevents a build-up of heat and humidity between the body and the supporting padding element.

Abstract: A foam material element for sound-damping cavities, particularly for light metal extruded profiles used in rail car construction. The foam material element has a foam material sandwich with at least two layers, namely a resilient layer and at least one heavy layer disposed on the resilient layer. The resilient layer is formed of soft foam polyurethane and the heavy layer is formed of a flocculated foam polyurethane compound. Prior to being inserted in a cavity to be sound-proofed, the foam material element is compressed and weld-sealed in an air-tight film. The element is inserted through an opening of the cavity in its compressed condition. After insertion and placement of the foam material element, the film is opened and, as a result of its exposure to air, the foam material element expands to such a degree that at least one heavy layer, biassed by the resilient layer, comes into contact with the walls substantially over a broad surface area.

Abstract: A process for preparing a flame-resistant, elastic soft polyurethane foam includes admixing a portion of expanded graphite having a particle size of from 0.2 to 1 mm as a flame retardant and a portion of melamine, with a foam reaction mixture of polyol and polyisocyanate.

Abstract: A process for producing a flame-resistant elastic soft polyurethane foam from a foam reaction component mixture of a polyol, a polyisocyanate, and a proportion of expanded graphite in the form of flakes as a flame retardant, includes initially admixing the flakes having a size on the order of magnitude of resultant foam cell walls with the polyol component. The flakes are incorporated to form at least part of the cell walls upon expansion of the foam.

Abstract: This invention relates to a process for preparing flame-retardant polyurethane foams comprising impregnating an open-cell polyurethane foam with a mixture of a cross-linkable polychloroprene elastomer latex; a flame-retarding zinc salt of a metaboric or polyboric acid; a crosslinking agent, preferably zinc oxide; and, optionally, aluminum hydroxide and other additives.This invention further relates to the use of the low flammability, non-melting polyurethane foams for the manufacture of upholstery materials.

Abstract: In a backrest cushion of polyurethane foam in flame-retardant finish for air passenger seats, the protection against the risk of fire spreading is increased and at the same time the weight is reduced and the comfort increased according to the invention by making the whole volume of the backrest cushion of a flame-retardant foam and providing it, at least in the region which is put under pressure in use, with recesses extending parallel to the direction of pressure and all ending equidistant from the surface of the cushion.

Abstract: An airline passenger seat with flame-retarding properties with seat and back-rest upholstery consisting of polyurethane foam which is provided with a flame-retarding surface and is covered by a covering material with flame-retarding properties. A polyurethane foam film is arranged between the seat and back-rest upholstery and the covering material, at least on the surface not covered by the seat frame parts, and the surface of the film is connected to the upholstery.

Abstract: A roof web for pitched roofs includes a vapor diffusion permeable but surface water impermeable foil, a reinforcement disposed below the foil, and an open-pore soft foam material disposed below the reinforcement and connected to the foil through the reinforcement, the reinforcement being a tear-proof grid fabric with a diffusion equivalent air layer thickness of substantially 0.07-0.12 m.

Abstract: A planar element for the absorption of air-transmitted sound, includes a flexible layer of open-cell foam material including a surface having protuberances with peaks formed thereon, and a flat closed cover layer formed of synthetic foil material fastened to the peaks of the protuberances, and a method of manufacturing the same.

Abstract: Foam molding apparatus, including a rotatable table, a plurality of molds disposed on the table, a device for heating and cooling each of the molds, a device being fixed in place relative to the table for filling a specific quantity of foamable reaction mixture having several components into each of the molds, a device for opening and closing each of the molds, a first computer connected to the opening and closing device and to the heating and cooling device for opening and closing each of the molds in dependence on the position thereof and for controlling the heating and cooling of each of the molds in dependence on time, and a second computer connected to the filling device for controlling the filling device in dependence on the position of the molds.

Abstract: Method for manufacturing composite foam articles from foam material flakes, polyurethane binders and additional solid components which cause a modification or change of the properties of foam material by mixing and hardening the mixture under pressure. The additional solid components are admixed in the form of an aqueous dispersion and/or aqueous solution thereby introducing and admixing them without difficulty and permitting the manufacture of composite foam materials with different properties as required.

Abstract: Method for the manufacture of molded bodies, which includes heating a plate of thermo-plastic hard polyurethane foam, placing a reinforcing cover layer of UP-Prepreg on at least one side of the plate, and forming the heated body under pressure to a given shape during the hardening of the polyester in the cover layer.

Abstract: Method and apparatus for the manufacture of a ball of foam material with an embossed surface pattern corresponding to the surface marking of a leather ball, which includes marking the surface of the ball in a single operation by simultaneously applying a set of heated embossing tools.

Abstract: Handprotector for athletes, including a one-piece protective cushion of soft polyurethane integral foam having a tubular forearm region surround the forearm and the wrist, the tubular forearm region having a narrow slit formed therein over the entire length thereof along the inside of the arm, a balloon-shaped hand region adjacent the forearm region, the hand region being bent back approximately 180.degree. from the back of the hand in the vicinity of the fingertips to form the shape of a closed fist, a molded finger grip strap disposed on the inside of the hand region, and a protective thumb cover disposed adjacent the hand region and extending over the thumb at the side of the forearm region, the thumb cover being closed at the outer side of the handprotector.

Abstract: Method for the manufacture of a ball formed of foam material with surface embossing corresponding to a soccer ball, which includes subdividing the surface of the ball into a plurality of equilateral polygons, and embossing the contour of at least one polygon into the surface of the ball in stages.