Modification of carpet surface with binder powder
CA 1323253 C · Owner: Hackler, Lewis Richardson · Inventors: Hackler, Lewis Richardson
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Pile carpet of nylon, polyester, or other pile yarn, is coated with 0.1 to 5 weight percent based on, weight of the pile yarn of a heat-activated adhesive powder having a melting point within the range of 100 to 170°C, preferably 110 to 150°C. For nylon pile yarn a preferred adhesive powder is a ternary copolyamide selected from the group consisting of 6/6,6/12: 6/6,6/11; and 6/6,6/12,12. The powder is heat-activated for, example to 195°C for about 60 seconds. The treated carpet displays enhanced carpet tuft appearance improved, resilience, carpet surface cleanness and improved wear, performance.
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 October 19, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 19, 2010.
- 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.