Monomer-poor polyurethane bonding agent having an improved lubricant adhesion
CA 2338378 A1 · Owner: Krudenscheidt, Markus · Inventors: Krudenscheidt, Markus; Bolte, Gerd
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a polyurethane bonding agent which has a low content of highly volatile residual monomers, which essentially forms no migrates and which has an improved lubricant adhesion. The invention also relates to a method for producing the inventive bonding agent and to an adhesive containing such a polyurethane bonding agent. In addition the invention relates to the , use of a low-viscous polyurethane bonding agent said bonding agent carrying , isocyanate groups (NCO groups) during the production of adhesives, especially adhesives containing one and two constituents for example, provided for , gluing web materials comprised of e.g. paper plastic and/or aluminum, …
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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 July 10, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 10, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 10, 2021.
- 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.