Polyethylene terephthalate sheath/thermoplastic polymer core bic

Details Polyethylene terephthalate sheath/thermoplastic polymer core bic Polyethylene terephthalate sheath/thermoplastic polymer core bic

1996-07-29

1997-05-27

Raimund, Christopher

Stock material or miscellaneous articles

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

Rod, strand, filament or fiber

428373, 428401, 428903, D02G 300

Patent

active

056330820

ABSTRACT:
Sheath-core bicomponent fibers comprising a core of a low-cost, high strength, thermoplastic material, preferably polypropylene or polybutylene terephthalate, completely covered with a sheath formed of polyethylene terephthalate or a copolymer thereof are produced, preferably melt blown to an average diameter of 12 microns or less, and formed into a self-sustaining, three-dimensional, porous element having various applications, principally as an ink reservoir element for a marking or writing instrument, although the porous element may also find utility as a tobacco smoke filter. Other forms of the product have utility in diverse applications where its excellent capillary, absorption and filtering properties are advantageous. The resultant products retain or improve upon the desirable features and processing capabilities of conventional elements, but are substantially less expensive, requiring less high cost polyester for equivalent or better properties.

REFERENCES:
patent: 2688380 (1954-07-01), MacHenry
patent: 2936482 (1960-05-01), Kilian
patent: 3095343 (1963-06-01), Berger
patent: 3111702 (1963-11-01), Berger
patent: 3176345 (1965-04-01), Powell
patent: 3192562 (1965-07-01), Powell
patent: 3347247 (1967-10-01), Lloyd
patent: 3381070 (1968-04-01), Sublett et al.
patent: 3409020 (1968-11-01), Westbrook, Jr. et al.
patent: 3595245 (1971-07-01), Buntin et al.
patent: 3615995 (1971-10-01), Buntin et al.
patent: 3637447 (1972-01-01), Berger et al.
patent: 3744497 (1973-07-01), Marciuliano
patent: 3825379 (1974-07-01), Lowkamp et al.
patent: 3825380 (1974-07-01), Harding et al.
patent: 3849241 (1974-11-01), Buntin et al.
patent: 3971373 (1976-07-01), Braun
patent: 3972759 (1976-08-01), Buntin
patent: 4117194 (1978-09-01), Barbe et al.
patent: 4173504 (1979-11-01), Tomioka et al.
patent: 4217321 (1980-08-01), Campbell
patent: 4270962 (1981-06-01), Sugihara et al.
patent: 4286005 (1981-08-01), Berger
patent: 4307151 (1981-12-01), Yamauchi et al.
patent: 4354889 (1982-10-01), Berger
patent: 4355995 (1982-10-01), Berger
patent: 4380570 (1983-04-01), Schwarz
patent: 4406850 (1983-09-01), Hills
patent: 4729808 (1988-03-01), Berger
patent: 4731215 (1988-03-01), Schwarz
patent: 4795668 (1989-01-01), Krueger et al.
patent: 4869275 (1989-09-01), Berger et al.
patent: 5010165 (1991-04-01), Pruett et al.
patent: 5074320 (1991-12-01), Jones, Jr. et al.
patent: 5094717 (1992-03-01), Manning et al.
patent: 5105834 (1992-04-01), Saintsing et al.
patent: 5162153 (1992-11-01), Cooke et al.
patent: 5246772 (1993-09-01), Manning
patent: 5254399 (1993-10-01), Oku et al.
patent: 5298348 (1994-03-01), Kung
Andrzej Ziabicki, "Fundamentals of Fibre Formation, The Science of Fibre Spinning and Drawing," pp. 366-373 and 386.

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