Plastisol composition
CA 2178726 A1 · Owner: Beck, Michael · Inventors: Ritter, Wolfgang; Beck, Michael; Hoeltgen, Christiane
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a plastisol composition based on bead polymers. The bead polymers preferably have a core/shell structure and an average diameter of 1 to 150 µm. The bead polymers are preferably chlorinefree and are made up at least of a) styrene .alpha.-methyl, styrene and/or p-methyl styrene on the one hand and b) 2 to 20% by weight (based on the copolymer) of olefinically unsaturated carboxylic acids. The plastisol composition according to the invention may be used for the production of coating compositions, sealing compounds and adhesives.
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 1, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 1, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 1, 2016.
- 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.