Abstract:
SPECIAL SURFACES FOR PLAYING FIELDS COMPRISING AN UPPER LAYER (A1) AND A LOWER (A2), EACH LAYER CONSISTING OF A THERMOPLASTIC MOLDING MATERIAL HAVING A SPECIAL COMPOSITION. THE LAYERS (A1) AND (A2) ARE WEBS OR BOARDS PROVIDED WITH APRALLEL RIBS ON ONE SIDE ONLY, LAYER (A1) BEING ARRANGED ON TOP OF LAYER (A2) IN SUCH A WAY THAT THE RIBBED SIDES ARE IN CONTACT, THE RIBS OF ONE LAYER BEING AT AN ANGLE OF FROM 45* TO 90 TO THOSE OF THE OTHER LAYER.
Abstract:
A CONTINUOUS PROCESS FOR THE PRODUCTION OF FOAMS FROM CURABLE SYNTHETIC RESINS IN WHICH AQUEOUS SOLUTIONS ARE FOAMED BY MEANS OF FOAMING AGENTS, THE RESULTANT FOAMS ARE MIXED WITH AQUEOUS SOLUTIONS OF RESINS IN A PRE-MIXING ZONE AND THEN IN A MAIN MIXING ZONE AND THE MIXTURES
ARE DISCHARGED FROM THE MIXING ZONE AND CURED, AS WELL AS AN APPARATUS FOR CARRYING OUT THE PROCESS.
Abstract:
SPECIAL SURFACES FOR PLAYING FIELDS COMPRISING AN UPPER LAYER, A1, A MIDDLE LAYER A2 AND A LOWER LAYER A3, LAYERS A1 AND A3 CONSISTING OF A THERMOPLASTIC MOLDING MATERIAL HAVING A SPECIAL COMPOSITION. THE LAYERS A1 AND A3 ARE WEBS OR BOARDS HAVING PARALLEL RIBS ON ONE SIDE, AND THE LAYER A2 IS A STRIP OR SHEET OF STEEL OR PLASTICS MATERIAL. THE RIBS ON THE LAYERS A1 AND A3 ARE IN CONTACT WITH THE MIDDLE LAYER A2 AND ARRANGED IN SUCH A WAY THAT THEY ARE STAGGERED AT EQUAL DISTANCES IN REALTION TO EACH OTHER.
Abstract:
Molding material comprising (a) a specially selected bitumen left as a residue in the distillation of petroleum which has been deacidified with calcium hydroxide and (b) an olefin polymer. The molding material may be pigment-colored and is used in the form of sheeting for insulation in construction.
Abstract:
A PROCESS FOR THE SIZE REDUCTION OF EXPANDED PLASTICS, COMPRISING PRELIMINARY SIZE OREDUCTION OF EXPANDED PLASTICS BLOCKS BY SHEARING ACTION BETWEEN ROLLERS ARMED WITH SHEAR BLADES AND STATIONARY BLADES AND FURTHER SIZE REDUCTION BY CONTINUED SHEARING ACTION.
Abstract:
A PROCESS FOR IMPROVING THE FLOWABILITY OF AMINOPLAST FOAMS PRIOR TO CURING, PARTICULARLY FOR COVERING SOIL, BY INCORPORATING COARSE GAS BUBBLES INTO FOAM CONTAINING FINE BUBBLES.