Structured synthetic web material and method for the production thereof

Abstract

Abstract A FLEXIBLE SYNTHETIC SURFACE STRUCTURED WEB MATERIAL EMBODYING A DISCONTINUOUS UPPER LAYER FORMED OF CROSSLINKED PLASTIC WITH A YOUNG''S BENDING MODULUS OF ELASTICITY IN A RANGE OF 10,000 TO 30,000 KG./CM.2 AND A CONTINUOUS LOWER ALYER OR STRATUM FORMED OF CROSS-LINKED PLASTIC WITH A YOUNG''S BENDING MODULUS OF ELASTICITY IN A RANGE OF 3,000 TO 10,000 KG./CM.2 BOTH LAYERS BEING BONDED TO ONE ANOTHER BY COMMON OR JOINT POLYMERIZATION. THE METHOD FOR THE PRODUCTION OF SUCH FLEXIBLE SYNTHETIC SURFACE STRUCTURED WEB MATERIALS COMPRISES APPLYING TO A MOLDING BAND POSSESSING RECESSES A FIRST MASS CONTAINING A HARDENABLE POLYESTER MIIXTURE, POSSESSING A YOUNG''S BENDING MODULUS OF ELASTICITY FOLLOWING POLYMERIZATION WHICH IS IN A RANGE OF 10,000 TO 30,000 KG./CM.2, THERE IS APPLIED SUCH QUANTITY OF THIS MASS TOTHE MOLD ING BAND THAT ONLY THE RECESSES THEREOF ARE FILLED, AND THEREAFTER SUCH MASS IS GELLED. A SECOND MASS IS APPLIED TO THE GELLED COOLED MASS DICUSSED ABOVE, THIS SECOND MASS CONTAINING A HARDENABLE POLYESTER MIXTURE POSSESSING A YOUNG''S BENDING MODULUS OF ELASTICITY FOLLOWING POLYMERIAZTION WHICH IS IN A RANGE OF 3,000 TO 10,000 KG./ CM.2, THE SECOND MASS IS THEN LEVELLED INTO A LAYER AND THE ENTIRE STRUCTURE OR ARRANGEMENT IS THEN HARDENED AT ELEVATED TEMPERATURES AND REMOVED FROM THE MOLDING BAND SO THAT THERE IS OBTAINED A DUAL-LAYER STRUCTURED WEB MATERIAL.

Inventors

• 👤 P Joos

Bibliographic Details