Material sheet and process for its preparation
AssigneeDsm IP Assets B.V.
InventorsReinard Jozef Maria STEEMAN, Marcel JONGEDIJK, Johann VAN ELBURG
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Abstract
The invention relates to a material sheet comprising a woven fabric of polymer tapes, wherein the width of a tape varies less than 2% on average in the longitudinal direction of the tape. The invention also relates to a process for the preparation of the material sheet, and to a ballistic resistant article comprising the material sheet. A ballistic resistant article comprising the material sheet exhibits excellent antiballistic properties.
Claims14
A process for the preparation of a polymeric tape having a width that varies less than 2% on average in the longitudinal direction of the tape, the process comprising forming a polymeric powder bed, compression-moulding the polymeric powder bed at a temperature below the melting point of the polymeric powder, and wherein the powder bed is moulded by compression together with at least one compressible border element positioned onto the powder bed to partition said powder bed into at least two parts, said compressible bordering element being made of a compressible material.
Dependencies are inferred from the claim text.