Amino-resin compositions
CA 1101575 A · Owner: Imperial Chemical Industries Limited · Inventors: Hubbard, Donald A.; Henbest, Richard G.C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Canadian Abstract, The present invention provides a composition comprising an unreacted j or partially-reacted mixture of formose and at least one amino resin in particular ???? formaldehyde, containing ?% to 50% by weight of formose solids and 5?% to 95% by weight of amino resin the molar, ratio of formaldehyde to amino groups in the amino resin component being from 0.6 : 1 to 1.5 : 1, and the composition being in the form of an aqueous solution having a solids content of 40% to ?0% by weight.
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 May 19, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 19, 1998.
- 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.