Polycarbonates with end groups containing double bonds which can be crosslinked by uv light
CA 1103840 A · Owner: Bayer Aktiengesellschaft · Inventors: Vernaleken, Hugo; Margotte, Dieter; Adelmann, Siegfried
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relaten to high-molecular weight arcwatic polycarbonates, based on diphenols and monofunctional chain stoppers, correnponding to the formula (I), (I), in which, z denotes the radical of a diphenol n denotes an integer from about 20 to 400 E denotes , wherein, m denotes 0 or 1 and R denotes H or C1-C3-alkyl. The present invention also relaten to a process for the preparation of the polycarbonatgs of the formula (I) comprising reacting diphenols of the formula (II) HO - Z - OH (II), wherein, z is a divalent aromatic radical and/or their chlorocarbonic acid eacers in accordance with the processes which are known for the preparation of polycarbonates, in a homogeneous or …
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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
- Granted June 23, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 23, 1998.
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.