Flexible polymeric acid compositions comprising phosphorus and/or halogen containing organic compounds
CA 1067235 A · Owner: B.F. Goodrich Company (The) · Inventors: Milenius, David L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A flexible polyacid containing at least one phosphorus and/or halogen-containing component may be prepared readily by (1) mixing together in bulk solution or, dispersion a polyacid and at least one of six hereinafternamed components and (2) drying or conditioning the mixture. The component may be selected from the group consisting of (A) at least one di(polyoxyethylene)hydroxymethyl phosphonate having the formula, HOCH2P(O)O(C2H4O)kH2 wherein k is from 1 to 5, (B) at least one compound having the formula wherein the sum of m and n is from 1 to 35 (C) tetrakis (hydroxymethyl)phosphonium chloride (HOCH2)4PCl (D) a, mixture of from about 75% to about 100% by weight 2,2-bis- …
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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 November 27, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 27, 1996.
- 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
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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.