Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Rod – strand – filament or fiber
Patent
1998-12-02
2000-08-22
Edwards, N
Stock material or miscellaneous articles
Coated or structually defined flake, particle, cell, strand,...
Rod, strand, filament or fiber
428387, D01F 600
Patent
active
061069426
ABSTRACT:
The invention is directed to LCP monofilaments and yarn made therefrom which have improved adhesion properties, said monofilaments, and yarn made therefrom, comprising a liquid crystalline polymer filament having a finish selected from the group consisting of esters formed between (a) pentaerythritol and saturated polyols of up to 10 carbon atoms and 2 to 6 hydroxyl groups, and (b) a carboxylic acid of formula C.sub.x H.sub.2x=1 COOH, wherein x is from 2 to 20, and wherein 2 to 6 of the hydroxy functions are converted to ester functions. In a preferred embodiment of the invention the finish is an ester formed from the reaction of pentaerythritol and a carboxylic acid of formula C.sub.x H.sub.2x=1 COOH, wherein x is from 2 to 20, and preferably between 14 and 20. The most preferred esters are pentaerythritol tetrapelargonate and pentaerythritol tetraisostearate.
REFERENCES:
patent: 3997450 (1976-12-01), Steinmiller
patent: 4183895 (1980-01-01), Luise
patent: 4294883 (1981-10-01), Hawkin
patent: 4468364 (1984-08-01), Ide
patent: 4910057 (1990-03-01), Ide et al.
patent: 5232742 (1993-08-01), Chakiravarti
patent: 5246776 (1993-09-01), Meraldi et al.
patent: 5358648 (1994-10-01), Chakiravarti
patent: 5427165 (1995-06-01), Balestra et al.
patent: 5464546 (1995-11-01), Bialas et al.
patent: 5478485 (1995-12-01), Bialas et al.
patent: 5525243 (1996-06-01), Ross
D.E. Turrek et al., "The effect of die aspect ratio on the rheological properties of a thermotropic copolyester"; J. Rheology, 36 (6): 1057-1078 (1992).
A. Kaito et al., "Effects of Shear Rate on the Molecular Orientation in Extruded Rods of a Thermotropic Liquid Crystalline Polymer"; J. Applied Poly. Sci. 55: 1489-1493 (1995).
"Liquid crystalline Polymers", Encyclopedia of Polymer Science and Engineering, vol. 9, (J. Wiley & Sons, New York 1987) pp. 1-7.
"Liquid Crystalline Materials", Kirk-Othmer Encyclopedia of Chemical Technology, vol. 15 (J. Wiley & Sons, New York 1995), pp. 372-409.
Anderson Norman S.
Gibbon John D.
Haider M. Ishaq
Lees Gerard
Celanese Acetate LLC
Douglas Walter M.
Edwards N
LandOfFree
Liquid crystalline polymer monofilaments having improved adhesio does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Liquid crystalline polymer monofilaments having improved adhesio, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Liquid crystalline polymer monofilaments having improved adhesio will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-578438