Process for the preparation of coatings from polyurethane singlecomponent systems and steam
CA 1291377 C · Owner: Elastogran Polyurethane Gmbh · Inventors: Rank, Mathaeus; Roche, Peter; Liebl, Herbert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure, The present invention relates to a process for the preparation of coatings by reacting polyurethane single component systems, which preferably contain at least one prepolymer containing NCO groups in bonded form and a latent hardener, whereby the polyurethane single component system is mixed with steam at a temperature from 100°C to 500°C and fed under a pressure of 0.5 to 10 bars and finally, sprayed using a general spray method. The coatings so formed cure bubble free independent of the moisture content of the surroundings and without exhibiting coating mass runoff.
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 29, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 29, 2008.
- 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.