Abstract: A process for producing a layered material in sheet or membrane form from thermoplastic foam is described. The laminated material is suitable in particular for use as a drainage sheet or membrane. To produce the membrane, the thermoplastic foam in the form of strips, lengths, shreds or the like is piled up to form a layer of uniform height and compressed and compacted at a temperature below the softening temperature of the foam. Subsequently, the compressed and compacted layer of thermoplastic foam is perforated and fused with the aid of pins which are heated to a temperature of 400.degree. to 800.degree. C., whereupon the perforated and fused layer is cooled while maintaining the compression.

Abstract: A foldable foam mat has a longitudinal fold line extending over the entire length of the foam mat and a plurality of transverse fold lines which are arranged in pairs and extend, perpendicular to the longitudinal fold line, over half of the mat toward the edges of the mat. One of each of the transverse fold lines, which are arranged in pairs, is configured as a single fold line, and one as a double fold line. Preferably, the fold lines have an asymmetric configuration, referring to the cross section of the foam mat.

Abstract: The invention describes a weatherable, plasticizer-free, uncrosslinked, and deep-drawable sheet, especially for the internal outfitting and external outfitting of automotive vehicles, as well as a process for its production, containing 65-25% by weight of a partially crystalline ethylene-propylene-diene terpolymer and 35-75% by weight of a homo- and/or copolymer of propylene, 0-10% by weight of fillers, as well as stabilizers and lubricants, the extruded or calendered sheet exhibiting a tensile strength at break in the longitudinal direction of at least 20 N/mm.sup.2. An advantageous further development of the invention comprises a composite sheet of EPDM/PP sheet with a crosslinked polyolefin foam layer.

Abstract: A multilayer composite sheet, especially for use as a padding layer underneath artificial grass, or turf includes a bottom layer of expanded synthetic resin, particularly of closed-cell polyethylene foam, and a metallic foil flatly bonded to the foam material. The multilayer composite sheet exhibits low weight per unit area, low water absorption, and low thermal linear expansion suitable for exposure to ambient weather conditions especially sunlight.

Abstract: A process for the production of multiple-layer moldings from a substrate, member based on polypropylene and an elastomer foam is provided wherein lamination of the foam to the substrate member and shaping of the polypropylene take place in one working step.

Abstract: A process is disclosed for the continuous embossing of the surface of flexible (i.e., soft-elastic) sheets or lengths of foam material optionally laminated to a synthetic resin film or a flat textile form or facing wherein the sheet of foam material is superficially plasticized by heating and is exposed to an embossing pressure by means of a perforated metallic embossing belt or band in accordance with a desired embossing pattern. The belt is removed after cooling and solidification of the embossed surface of the sheet of foam material.

Abstract: A process for the production of semifinished products and/or molded components from polypropylene by grafting thereto an alkoxysilane compound in the presence of an organic peroxide involves mising the polypropylene, the silane compound, and the peroxide and subsequently plasticizing and extruding at a temperature of about 170.degree.-240.degree. C. The process utilizes an essentially isotactic homopolymer of propylene with a density of about 0.90-0.91 g/cm.sup.3 and a melt index MFI (#.degree. C./5 kp) of smaller than 0.7 g/10 min, preferably smaller than 0.1 g/10 min, and with a molecular weight higher than 5.multidot.10.sup.5. An initially non-crosslinked semifinished product is obtained.

Abstract: A sound-insulated flow duct is provided with walls made up of a composite of an elastic thermoplastic, predominantly closed-cell foam material as the outer layer and an open-cell, elastic soft foam material as the inner layer.

Abstract: Mat for sports and athletics with a core layer made of an elastic foam material provided on the topside with a skin-compatible top material, for example, artificial leather or a textile material, and on the underside with a skidproof layer, wherein the side rims of the mat, starting with the core layer to the underside are continuously beveled, especially at 45.degree., and the top material is equipped with a border corresponding especially to twice the thickness of the mat and projecting beyond the topside, and wherein on the inside of the projecting border two especially equal-sized, wedge-like ridges are arranged so that they extend in parallel to the side of the mat in side-by-side relationship. These ridges have the cross-section of an isosceles right triangle and a height corresponding to half the thickness of the mat and are made of an elastic foam material.

Abstract: A hammock having a mat portion and loop-shaped arrangement at the head and foot ends of the mat portion to accommodate mounting dowels, said mat portion comprising an elastic crosslinked synthetic resin foam sheet, reinforced with a flat textile layer or organic and/or inorganic fibers, threads, strips, or the like, said sheet having a tensile strength of at least 0.20 N/mm.sup.2, a tear propagation resistance of at least 1.0 N/mm, and an ultimate elongation of at least 80%, with a gross density of about 30-130, preferably 30-80 kg/m.sup.3.

Abstract: A process for the continuous production of a sheeting of stratified material from synthetic resin foam particles especially particles of crosslinking polyethylene includes the steps of scattering foam particles onto a conveying means, preheating the foam particles during conveyance, superficially to a temperature in the range between 100.degree. and 160.degree. C.; thereafter feeding the thus-preheated foam particles to means defining a free falling zone; causing the preheated particle to free-fall within said zone; further heating the particles during falling, to a temperature of at least 200.degree. C., and, at the end of the free fall, piling up the particles on a support surface; compacting the piled-up particles into a sheet-like layer on said surface; and sizing the preliminarily compacted sheet with simultaneous cooling.

Abstract: A floor mat is formed essentially of cross-linked polyolefin foam for the lining of the floor interiors of motor vehicles. This mat includes a cross-linked polyolefin foam floor mat base having at least one preselected surface area covered with a permanently applied floor-protecting surface layer. The layer is made up of cross-linked polyolefin foam layer and a thermoplastic polymeric film which is heatable in a high-frequency electrical field in dielectric fashion and which exhibits wear resistance superior to the cross-linked polyolefin foam or base. The cross-linked polyolefin foam base is preshaped to conform to the contours of the floor interior of a motor vehicle.

Abstract: An engine hood lining for automotive vehicles has a continuous sheet-like body that is formed of a closed-cell polyethylene foam material and is shaped to fit the inside contour of a hood of the vehicle.

Abstract: A self-supporting molded headliner for use in the inside of automobile roofs is formed of a layered composite arrangement or construction of polyethylene foam panels laminated or otherwise secured on both sides to at least one reinforcing layer of rigid paperboard, for example, corrugated cardboard or carton material.

Abstract: Forming tool comprising a shaped structure that is porous and air-permeable and that is made from a reactive resin and at least one inert filler.

Abstract: An adhesive interior or dome lining is provided for the interior of a vehicle roof with the central portion of the dome lining being adhesively secured to the roof while free edges of the dome lining are inserted into the gap formed between the roof and the interior roof strut. A profiled member of a soft foam material is provided adjacent the gap with the free end of the dome lining passing over the profiled member to be clampingly engaged into the gap by the compressive forces of the foam material. A method for installing this arrangement is further provided.

Abstract: A self-supporting interior lining or vehicle dome having in the edge zones thereof at least one clamping or mounting bead adapted to cooperate with at least one undercut provided in the vehicle roof structure to mount the same thereon. At least one of the clamping bead and vehicle dome or a portion thereof is manufactured of an elastic material to facilitate installation within the vehicle.

Abstract: An interior covering for automotive vehicles, containers, or the like, which is insulating and optionally constructed to be self-supporting, comprising at least two sheets of polyethylene foam of identical or different density permanently bonded together with a reinforcing polymer-containing layer to form a multiple-layered structure.

Abstract: A process for joining abutting thermoplastic synthetic resin foam structures by a strip which covers a junction zone formed between the foam structures including the steps of pressing a metal strip heated to above the softening point and or the melting temperature of the synthetic resin foam under slight pressure onto the junction zone and then allowing the metal strip to cool. In this manner, a bond is formed between the foam structures and the metal strip.

Abstract: A process for the production of multiple-layer sheets, panels, shaped articles, or the like laminates having at least one layer of polyurethane foam material wherein at least one side of the polyurethane foam layer is bonded under the action of heat to a layer of cross-linked polyethylene foam material.