Plastic foam products consisting of beads and mfg. method thereof

Plastics foam material from beads, especially for vehicles, has pimples formed at the outer surface to reduce friction noise. the pimples have a height of 0.001-1.0 mm, at intervals of 0.003-3.0 mm, with a diameter at the base of 0.001-5.0 mm and preferably 0.01-0.5 mm. The surface pimples are round...

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Bibliographische Detailangaben
1. Verfasser:	BRUNING JUERGEN
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CHEMISTRY COMPOSITIONS BASED THEREON GENERAL PROCESSES OF COMPOUNDING INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FORVEHICLES SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING VEHICLES IN GENERAL VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILARDEVICES FOR VEHICLES WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL WORKING-UP
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Beschreibung
Zusammenfassung:	Plastics foam material from beads, especially for vehicles, has pimples formed at the outer surface to reduce friction noise. the pimples have a height of 0.001-1.0 mm, at intervals of 0.003-3.0 mm, with a diameter at the base of 0.001-5.0 mm and preferably 0.01-0.5 mm. The surface pimples are round and/or polygonal, conical or truncated cones. The material has a fused surface. An independent claim is included for the production of foam products using an automatic molding assembly, with the plastics beads within the hollow molding zones. A gas heat carrier is fed into the molds, and especially hot steam, with openings for the steam inflow and outflow. The mold surfaces have recesses to shape the pimples at the foam surfaces.