Mat material of melt-spun polymeric filaments having discontinuo

Details Mat material of melt-spun polymeric filaments having discontinuo Mat material of melt-spun polymeric filaments having discontinuo

1978-07-03

1980-07-15

Bell, James J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

264 458, 428296, 428297, 428307, 428308, 428398, D04H 158

Patent

active

042129150

ABSTRACT:
A mat material suitable for use for reinforcing plastics, as an upholstery material, filter material and various other purposes is made by melt spinning a synthetic polymeric material onto a moving embossed surface where the filaments become melt fused together at mutual points of contact. A gas or gas producing substance is mixed with the melt prior to extrusion to produce a plurality of adjacent, separate, discontinuous cavities in the filament.

REFERENCES:
patent: 3576931 (1971-04-01), Chopra et al.
patent: 3684647 (1972-08-01), Matsui et al.
patent: 3700544 (1972-10-01), Matsui
patent: 3706828 (1972-12-01), Izentes
patent: 3725192 (1973-04-01), Ando et al.
patent: 4045352 (1977-08-01), Rembaum et al.
patent: 4051300 (1977-09-01), Klein et al.
patent: 4054709 (1977-10-01), Belitsin et al.

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