Low environmental toxicity latex coatings
CA 2314975 A1 · Owner: Sugerman, Gerald · Inventors: Sugerman, Gerald
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Combinations of nonvolatile reactive amines and hydroxyl bearing, unsaturated , esters and/or ethers and/or ether-esters (and/or combinations of non-hydroxyl bearing, unsaturated esters and/or ethers and/or ether-esters, and saturated hydroxyl bearing etherified and/or esterified oligomeric glycols and/or oligools) as replacements for , conventionally employed volatile amines and/or ammonia as neutralizers and organic solvents as coalescents respectively has been found to enable the , production of economical low to no VOC acrylic and, vinyl copolymer latex based coatings paints, and inks. Further enhancement may be had by substitution of hypersurfactants in place of, conventional soaps …
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 December 19, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 19, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 19, 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.