Solid, water-dispersible plastics precursors containing isocyanate groups, a process for the production of aqueous plastics dispersions using such plastics precursors and the use of such plastics precursors as cross-linking agents for aqueous
CA 1208842 A · Owner: Bayer Aktiengesellschaft · Inventors: Dieterich, Dieter; Wenzel, Wolfgang
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to water-dispersible plastics precursors which are solid at temperatures below about 40°C. The plastics precursors are based on isocyanate-terminated prepolymers which have been hydrophilically modified with ionic groups and/or ethylene oxide units and which contain specified amounts of isocyanate groups and -NH- groups. The present invention also relates to processes for preparing aqueous dispersions from the solid plastics precursors and to using the plastics precursors for cross-linking dispersed plastics containing isocyanatereactive groups.
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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
- Granted July 29, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 29, 2003.
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.