Stabilizer for glass/polymer alloys
CA 2105904 A1 · Owner: Bookbinder, Dana Craig · Inventors: Aitken, Bruce Gardiner; Bookbinder, Dana Craig; Dickinson, James Edward, Jr.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention is directed to an alloy and a method of producing an alloy, of increased resistance to moisture, comprising a melt mixture of at least one phosphate glass, at least one organic thermoplastic or thermosetting polymer and an amount of a, water soluble stabilizer component which provides a source of metal cations having a valency of 2+ or higher. The amount of the stabilizer component added is that amount effective to improve the alloy's resistance to moisture. Preferably the alloy is comprised of: (a) 5-80% of the matrix material; (b) 15-90% of the phosphate glass; and (c) 0.1 to 40% of the stabilizer component. Additionally the metal cations which are found in the stabilizer …
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
- Filed September 10, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 10, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 10, 2015.
- 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.