Sensitizers for photopolymerisation
CA 1234242 A · Owner: Ciba Specialty Chemicals Holding Inc. · Inventors: Felder, Louis; Husler, Rinaldo; Kirchmayr, Rudolf
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure Aromatic-aliphatic kittens of the formulae I II, III or IV, I, III, IV, wherein n is 1 or 2 Ar is an aryl radical, R1 and R2 are, monovalent aliphatic cycloaliphatic or araliphatic radi-, cals R3 is a direct bond or a divalent organic radical X is a hydroxyl or amino group or the monovalent etherification or silylation products thereof, and X' is a divalent amino, ether or silyloxy group, Y is a direct bond or CH2 and Z is O, S, SO2, CH2 or C(CH3)2 are suitable, sensitizers for the photopolymerisation of unsaturated compounds and for the photochemical crosslinking of polyolefins. Some of these compounds are novel and can be obtained by methods analogous to those …
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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 March 15, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 15, 2005.
- 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.