Stock material or miscellaneous articles – Structurally defined web or sheet – Including variation in thickness
Patent
1982-07-26
1986-11-11
Bell, James J.
Stock material or miscellaneous articles
Structurally defined web or sheet
Including variation in thickness
428 70, 428 72, 428156, 428166, 428172, 428281, 428283, 428284, 428300, 428323, 428331, B32B 300
Patent
active
046222600
ABSTRACT:
A mat like composite body (1) comprising a cover layer (2) of a fiber or filament fleece and a backing layer (3) comprising the same fleece or of a synthetic plastic sheet (7), in particular one provided with depressions (8), between the cover layer (2) and the backing layer (3) a layer (5) of particles (6) of an inert material, preferably rock particles, is arranged. The three layers (2, 3 5) are needle-bonded together prefereably with holding fibers (4) taken from the cover layer (2) is described. Different possible applications of the composite body (1) are disclosed, whereby the composite body (1) by the utilization of the properties of the granular particles (6), which serve for example to dilute and/or carry other particles (13), such as binders, active ingredients, etc, is applied to the external treatment of human or animal bodies, sound attenuation, fire protection, the weighting of third bodies or as a so-called car protection mat. Furthermore, advantageous measures are disclosed for the needle-bonding of for example rock particles.
REFERENCES:
patent: 3752721 (1973-08-01), Clark et al.
patent: 4250172 (1981-02-01), Mutzenberg et al.
patent: 4296166 (1981-10-01), Ogino
patent: 4357386 (1982-11-01), Luciano et al.
patent: 4424248 (1984-01-01), Tesch et al.
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