Method and apparatus for needling of glass mat and composite product made from said mat
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United States of America Patent
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May 28, 1991
Grant Date -
N/A
app pub date -
Jun 24, 1988
filing date -
Jun 26, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
This invention relates to needling of continuous glass yarn mats. The invention consists in subjecting the mat to the action, preferably simultaneous action, of needles of different diameters. Thus perforations of different dimensions, preferably regularly distributed, are made in the mat. This mat is intended to be used as reinforcement in composite materials with a base of thermoplastic resins, in particular in laminates.
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Cited Art Landscape
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