Urea/ureido functional polymerizable monomers
CA 2258874 A1 · Owner: Dileone, Roland Ralph · Inventors: Dileone, Roland Ralph; Chang, Laurence W.; Siesel, David A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to ethylenically unsaturated polymerizable monomers of formula (I) wherein Y is (a, b, c, d, e f, g, h or i) wherein A is (j, k, l, m n or o) wherein each R is individually H -(-CqH2q-O-)m-R2, (p), etc. which are particularly suitable for use as wet adhesion promoters and in the preparation of self-crosslinking polymers. More specifically the , polymerizable monomers of the present invention are useful to promote adhesion in polymers and copolymers, and especially in aqueous emulsion copolymer latices which are used to prepare latex paints as well as in the preparation , of self-crosslinking polymers for coating systems.
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
- Filed June 24, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 24, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 24, 2019.
- 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.