Uv-crosslinkable materials based on isoamyl (meth)acrylate copolymers
CA 2000736 A1 · Owner: Nestler, Gerhard · Inventors: Pfoehler, Peter; Rehmer, Gerd; Aydin, Oral
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
O.Z. 0050/40301, Abstract of the Disclosure: Materials which are crosslinkable by ultraviolet radiation under atmospheric oxygen and are based on (meth)acrylate copolymers having a X value of from 10 to 100 are obtained by free radical polymerization, in the presence or absence of a solvent of, a) from 5 to 97.4% by weight of isoamyl acrylate and/or isoamyl methacrylate, b) from 0 to 89.9% by weight of (meth)acrylates whose homopolymers have a glass transition temperature below -30°C, c) from 2.5 to 30% by weight of .alpha..beta.-monoolefinically unsaturated compounds whose homopolymers have a glass transition temperature above -30°C d) from 0 to 10% by weight of monoolefinically …
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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 October 16, 1989. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 16, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 16, 2011.
- 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
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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.