Impregnating, casting and coating compositions for electrical and/or electronic components and for carrier materials for sheetlike insulating materials
CA 2283706 C · Owner: Eichhorst, Manfred · Inventors: Eichhorst, Manfred; Lienert, Klaus-Wilhelm; Blum, Rainer
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns the use of a resin compound (A) as impregnating casting and coating compounds for electrotechnical and/or electronic components and for carrier materials for plane insulating materials. The resin compound (A) contains: A1) at least one unsaturated polyester resin; A2) at least one vinylether with a viscosity of less than 4000 mPa.s at 25 ~C; A3) optionally at least one further polymer and/or oligomer; A4) optionally at least one curing accelerator; A5) optionally at least one ethylenically unsaturated reactive thinner; and A6) optionally further conventional additives. The invention further concerns coating compounds which cure with low emission and are …
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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 March 16, 1998 and granted June 4, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 16, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 16, 2020.
- 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.