Flowing fluid into nozzle in flash-spinning emulsion and forming pulp
CA 1091412 A · Owner: Toray Industries, Inc. · Inventors: Fujita, Takashi; Kamaishi, Tadami; Kitagawa, Takao
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The synthetic pulp-like material of the present invention is a fibrillated fibrous material composed mainly of hydrophobic polymer and a hydrophilic polymer, in which the hydrophilic polymer exists in the shape of irregular islands when viewed in cross section taken at a right angle to the fiber axis. The hydrophilic polymer is arranged as continuous or intermittent striae in the direction of the fiber axis in a substantially, greater part of said fibrous material the ratio of the transverse dimension, (?1) to the longitudinal dimension (?2) (?1/?2) is within the range of, about 1-10 and the longitudinal dimension (?2) does not exceed 10 microns. This synthetic pulp-like material useful for …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted December 16, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 16, 1997.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.