Plastic and nonmetallic article shaping or treating: processes – Forming continuous or indefinite length work – Shaping by extrusion
Patent
1975-04-02
1977-09-20
Woo, Jay H.
Plastic and nonmetallic article shaping or treating: processes
Forming continuous or indefinite length work
Shaping by extrusion
106170, 106187, 106189, 264187, 536 62, 536 56, 536 58, D01D 508
Patent
active
040497640
ABSTRACT:
In the formation of highly absorbent and rapidly wicking filaments and web structures by extrusion and solvent drying of extrudates composed of highly swollen hydrophilic chemically modified cellulose fibers, improved results are obtained in the form of a softer and better wicking product by treatment of the extrudate prior to extrusion. The extrudate is a mass containing the swollen chemically modified cellulose fibers and a water content of up to 98% at the time of extrusion. By adding to the extrudate, prior to extrusion, an amount of from about 2 to 50% of the solvent to be used in drying in the form of pure solvent or in the form of a mixture containing solvent but which may contain water or other non-solvent and the solvent to be used in drying, a much better performing extrudate is produced which results in better filament formation, improved bonding between filaments, lower water content in the extrudate, faster drying of the extruded product, and a softer, better wicking product.
REFERENCES:
patent: 1896725 (1933-02-01), Tanner
patent: 3366582 (1968-01-01), Adams et al.
patent: 3482011 (1969-12-01), Bohrer
patent: 3565886 (1971-02-01), Clermont
patent: 3658790 (1972-04-01), Bernardin
patent: 3691154 (1972-09-01), Bernardin
patent: 3739782 (1973-06-01), Bernardin
patent: 3740940 (1973-06-01), Berkovitch
patent: 3785918 (1974-01-01), Kawai et al.
patent: 3914354 (1975-10-01), Ueki et al.
patent: 3952081 (1976-04-01), Epstein et al.
Lassen Frederick O.
Sigl Wayne C.
Hanlon, Jr. Daniel J.
Herrick William D.
Kimberly-Clark Corporation
Miller Raymond J.
Woo Jay H.
LandOfFree
Method of forming highly absorbent filaments and webs having imp does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of forming highly absorbent filaments and webs having imp, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of forming highly absorbent filaments and webs having imp will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-671448