Radiation curable compositions and their use
CA 2103540 C · Owner: Fischer, Wolfgang · Inventors: Fischer, Wolfgang; Gupta, Pramod; Meixner, Jurgen
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to compositions which may be cured by radical polymerization at room temperature and contain A) 20 to 100 parts by weight of .alpha..beta.-ethylenically unsaturated polyesters which are the reaction products of a) a dicarboxylic acid component containing i) 40 to 100 carboxyl equivalent % of .alpha..beta. ethylenically unsaturated dicarboxylic acids and/or their anhydrides and ii) 0 to 60 carboxyl equivalent % of dicarboxylic acids and/or their anhydrides other than those set forth in i) with b) an alcohol component containing i) 25 to 100 hydroxyl equivalent % of alkoxylated 2-butene-1,4-diols having an average molecular weight 130 to 400 and ii) 0 to 75 …
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 August 6, 1993 and granted July 1, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 6, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 6, 2015.
- 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.