Cross ply of plastic tapes as well as process and device for the manufacture thereof
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United States of America Patent
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Issued Date -
Dec 22, 2005
app pub date -
Jul 11, 2005
filing date -
Mar 11, 2003
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The invention relates to a process and device for the manufacture of a cross ply of plastic tapes as well as to the cross ply itself. The process comprises: a) providing a transverse web (1) comprising transverse plastic tapes (1a) interconnected by a synthetic layer (1b), b) cutting transverse web pieces (1c) of equal lengths from the transverse web (1) and conveying the transverse web pieces (1c) to a connecting station (6), where the transverse web pieces (1c) are drawn in transversely to the direction of the longitudinal axis of their transverse plastic tapes, c) providing a plurality of longitudinal plastic tapes (8), d) supplying the longitudinal plastic tapes (8) in parallel arrangement to the connecting station (6), e) connecting the longitudinal tapes (8) with supplied transverse web pieces (1c) at the connecting station (6) to form a cross ply (11, 19) by introducing a plastic melt layer (10) between the longitudinal plastic tapes (8) and the transverse web pieces (1c) as they are passed through the connecting station (6), and subsequent cooling of the plastic melt layer so that the direction of the longitudinal axis of the longitudinal plastic tapes (8) runs at an angle relative to the direction of the longitudinal axis of the plastic tapes of the transverse web pieces (1c).
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