Fabric (woven – knitted – or nonwoven textile or cloth – etc.) – Nonwoven fabric – Spun-bonded nonwoven fabric
Patent
1996-04-19
1997-03-18
Bell, James J.
Fabric (woven, knitted, or nonwoven textile or cloth, etc.)
Nonwoven fabric
Spun-bonded nonwoven fabric
D03D 300
Patent
active
056121237
ABSTRACT:
Improved meltspinning productivity is achieved by employing polyolefin resins having key molecular weight distribution and rheological property parameters within predetermined ranges. These parameters include the molecular weight distribution breadth parameter, M.sub.z /M.sub.n ; and rheological property parameters of flow rate ratio, I.sub.10 /I.sub.2, and the power law index, n, of the regression analysis viscosity equation. These parameters additionally include one or both of the z-average molecular weight, M.sub.z, of the resin, or the second order constant, b.sub.2, of the regression analysis viscosity equation, and unless both of the latter two parameters are met, the parameters further include the die swell and the spinnability factor (determined from the relationship between die swell and MFR) of the resin.
REFERENCES:
patent: 3183283 (1965-05-01), Reding
patent: 3472829 (1969-10-01), Claybaugh et al.
patent: 3522198 (1970-07-01), Tamada et al.
patent: 4230831 (1980-10-01), Sakurai et al.
patent: 4296022 (1981-10-01), Hudson
patent: 4336352 (1982-06-01), Sakurai et al.
patent: 4461873 (1984-07-01), Bailey et al.
patent: 4487875 (1984-12-01), Nakajima et al.
patent: 4500682 (1985-02-01), Chiba et al.
patent: 4530914 (1985-07-01), Ewen et al.
patent: 4536550 (1985-08-01), Moriguchi et al.
patent: 4547551 (1985-10-01), Bailey et al.
patent: 4626467 (1986-12-01), Hostetter
patent: 4644045 (1987-02-01), Fowells
patent: 4786697 (1988-11-01), Cozewith et al.
patent: 4789714 (1988-12-01), Cozewith et al.
patent: 4792588 (1988-12-01), Suga et al.
patent: 4842922 (1989-06-01), Krupp et al.
patent: 4863790 (1989-09-01), Horacek et al.
patent: 4874820 (1989-10-01), Cozewith et al.
patent: 4990204 (1991-02-01), Krupp et al.
Fowells William
Gessner Scott L.
Bell James J.
Fiberweb North America, Inc.
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