Acrylic fibers having superior abrasion/fatigue resistance
CA 1286071 C · Owner: Monsanto Company · Inventors: Bach, Hartwig C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Acrylic fibers are provided having superior abrasion resistance and flex fatigue properties as well as other properties desirable for end use applications in fabrics where wear performance properties are important, such as socks. The fibers may be made by a wet spinning process in which the spinbath consists of dimethylformamide and water where the concentration of the dimethylformamide is in the range of 72 to 84% by weight.
Read the whole patent
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 July 16, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 16, 2008.
- 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.