Plastic and nonmetallic article shaping or treating: processes – Forming continuous or indefinite length work – Shaping by extrusion
Reexamination Certificate
2009-04-08
2011-11-22
Sole, Joseph Del (Department: 1743)
Plastic and nonmetallic article shaping or treating: processes
Forming continuous or indefinite length work
Shaping by extrusion
C264S465000, C425S378200, C425S17480R
Reexamination Certificate
active
08062567
ABSTRACT:
A process for manufacturing organic fibers containing an inorganic component comprising the steps of: (1) preparing an inorganic spinnable sol solution; (2) mixing the inorganic spinnable sol solution, a solvent capable of dissolving the inorganic spinnable sol solution, and an organic polymer capable of being dissolved in the solvent to prepare a spinning solution; and (3) spinning the spinning solution to form the organic fibers containing an inorganic component composed of an inorganic gel and the organic polymer, is disclosed. The inorganic spinnable sol solution preferably has a weight average molecular weight of 10,000 or more, and the inorganic spinnable sol solution is preferably prepared from a material containing a metal alkoxide having an organic substituent. According to the process of the present invention, organic fibers containing an inorganic component having an improved mechanical strength can be produced by mixing an inorganic component into an organic component, and a nonwoven fabric containing the fibers can be provided.
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Han, Lei, Study on Preparation and Characterization of SiO2/Silicone Hybrid Materials by Sol-Gel Process, China Doctor & Master Theses Full-Text Database (CDMD) (Master Database), Engineering Technology I, Aug. 2005, No. 4, pp. 9-15, with partial English translation.
Kawabe Masaaki
Tarao Takashi
Watanabe Rie
Del Sole Joseph
Heslin Rothenberg Farley & & Mesiti P.C.
Japan Vilene Company Ltd.
Sultana Nahida
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