Polyolefin yarns with good performance for rugs and carpets and

Details Polyolefin yarns with good performance for rugs and carpets and Polyolefin yarns with good performance for rugs and carpets and

1992-08-05

1994-08-09

Ryan, Patrick J.

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Rod, strand, filament or fiber

428198, 428293, 428370, 57204, 57205, 57206, 57208, 57209, 57245, 57905, 156166, D02G 300

Patent

active

053365623

ABSTRACT:
The invention relates to a novel type of polyolefine yarns with good performance in the manufacture of rugs and carpets, made-up by admixing polypropylene filaments with polyethylene filaments, and by subjecting said filaments mixture to a temperature of from 125.degree. C. up to 130.degree. C., which substantially equals the melting temperature of the polyethylene filaments, whereby said polyethylene filaments become melted while the polypropylene filaments, with higher melting point, remain solid and stable, and with said melting of the polyethylene filaments constituting welding points for said polypropylene filaments, bulking and shaping the resulting yarn.

REFERENCES:
patent: 3049466 (1962-08-01), Erlich
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patent: 3649427 (1972-03-01), Hughes
patent: 3839854 (1974-10-01), Carranza et al.
patent: 4013816 (1977-03-01), Sabee et al.
patent: 4142355 (1979-03-01), Chambley et al.
patent: 4166357 (1979-09-01), Carranza et al.
patent: 4304234 (1981-12-01), Hartman
patent: 4451520 (1984-05-01), Tecl et al.
patent: 4490425 (1984-12-01), Knoke et al.
patent: 4668566 (1987-05-01), Braun
patent: 4696850 (1987-09-01), Josf et al.
patent: 5199141 (1993-04-01), Trask et al.

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