Process for producing cured, curved moulded articles
CA 1184106 A · Owner: Ciba-Geigy Ag · Inventors: Gruber, Urs; Patzeli, Bernd
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Process for producing cured, curved molded articles Abstract, A process for producing cured curved molded articles, having a sandwich structure by heating-and press-molding a composite material comprising an inner layer of a solid material having hollow spaces therein and covering layers consisting of a B-stage epoxide resin/curing agent mixture reinforced with a fiber mat or fiber fleece. The process being conducted at pressure of from 0.5-1.5 N/mm2 and at temperature of from 100-200°C.
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
- Granted March 19, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 19, 2002.
- 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.