Cloth-like totally biodegradable and/or compostable composites and method of manufacture
CA 2283521 A1 · Owner: Fiberweb France S.A. · Inventors: Ehret, Philippe; Wu, Pai-Chuan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A totally biodegradable and/or compostable soft cloth-like composite (110) of totally biodegradable and/or compostable film (30) and totally biodegradable and/or compostable nonwoven and method of manufacture. A totally biodegradable and/or compostable nonwoven fibrous web (40) and a totally biodegradable and/or compostable film (30) are laminated. The laminate is incrementally stretched by a stretcher (80) to produce a totally biodegradable and/or compostable laminate (110) that is softer than that produced when the biodegradable and/or compostable nonwoven web is bonded to the biodegradable and/or compostable film. The soft cloth-like features of the invention are desired in a …
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
- Filed March 2, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 2, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 2, 2020.
- 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.