Tackified star block copolymer pressure-sensitive adhesive composition and sheet materials coated therewith
CA 1264388 C · Owner: Silver, Spencer F. · Inventors: Lau, Felix P.; Silver, Spencer F.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Tackified Star Block Copolymer Pressure-Sensitive Adhesive Composition and the Sheet Materials Coated Therewith Abstract of the Disclosure, Adhesive compositions comprising tackified star block copolymer having at least 12 block copolymer arms are provided. Sheet materials coated with the adhesive composition are also provided.
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 January 9, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 9, 2007.
- 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.