Method of drawing nylon monofilaments
CA 1107022 A · Owner: Firestone Tire & Rubber Company (The) · Inventors: Tay See, Francisco
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process is provided for improving the longitudinal and loop tenacity properties of polyamide monofilaments. The process contemplates the treating of an undrawn spun polyamide, monofilament with a vapor medium such as steam and while the, monofilament is exposed to such vapor drawing the monofilament, to a draw ratio of from 2.0:1.0 to 4.0:1.0 and further drawing, the monofilament in a subsequent drawing operation to an aggregate draw ratio of from 5.0:1 to 8.0:1. The drawn products are particularly useful as reinforcing elements in rubber bodies such as tires.
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 August 18, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 18, 1998.
- 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.