Low smoke modified polypropylene insulation compositions and process for the preparation thereof
CA 1307864 C · Owner: Shell Canada Limited · Inventors: Icenogle, Ronald Dean; Djiauw, Lie Khong
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A flame retardant insulation composition comprising the following components:-, (a) in the range of from 5 to 40 per cent by weight of a hydrogenated monoalkylarene (A)-conjugated diene (B) block copolymer contain at at least two A blocks and at least one B block;, (b) in the range of from 1 to 20 per cent by weight of a plasticizer; (c) in the range of from 1 to 40 per cent by weight of functionalized or not functionalized polypropylene;, (d) in the range of from 10 to 85 per cent by weight of a hydrated inorganic filler which optionally has been surface treated with a coupling agent;, (e) and optionally in the range of from 0.25 to 10 per cent by weight of a functionalized low molecular …
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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 September 22, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 22, 2009.
- 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.