Photo-settable, light-shielding coating composition
CA 1238741 A · Owner: Matsushita Electric Industrial Co. Ltd. · Inventors: Inoue, Takao; Matsuo, Takahiro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract, The invention provides a photo-settable coating composition for forming a black-colored light shielding layer. The composition comprises 1 to 30 wt% of a polyacrylate selected from urethane polyacrylates epoxy poly-, acrylates, polyester polyacrylates and mixtures thereof; 30 to 70 wt% of an acrylate monomer selected from polyacrylate monomers, acrylate monomers and mixtures thereof; 5 to 30 wt% of a globular light-scattering agent; 5 to 30 wt% of a white-colored filler material; 2 to 10 wt% of carbon powder; and 2 to 7 wt% of a light sensitizer.
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 June 28, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 28, 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.