Encapsulating compound and articles comprising same
CA 1291841 C · Owner: Chapin, John Thomas · Inventors: Chapin, John Thomas; Sabia, Raffaele Antonio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract, A polyurethane-based cable splice encapsulant further comprises about 25-70% b.w. ester plasticizer and, optionally, no more than 35% b.w. diluents preferably less, than 15% b.w. diluents and has a cure time of at least 50, minutes at 25%. The relatively long cure time together, with other properties of the material including a, viscosity typically between 0.15 and 1.5 Pa-s (150 and 1500 centipoise), and relatively good "bonding" to plasticinsulated conductors, results in improved water-intrusion resistance of splices enveloped in the novel encapsulant.
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 November 5, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 5, 2008.
- 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.