Additive for improving weathering resistance and decreasing viscosity of high solids coatings
CA 1238440 A · Owner: Union Carbide Corporation · Inventors: Smith, Donald F. Jr.; Corcoran, Richard J.; Kopf, Peter W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Invention, The total solids and viscosity of high solids coating compositions containing hydroxyl functional acrylic copolymer base resins are decreased by incorporating up to about 30% by weight of a mixture of reactive diluents. The reactive diluents are a mixture of a reactive acrylic oligomer and a polycaprolactone hexol.
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 June 21, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 21, 2005.
- 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.