Organic polymer stabilisation
CA 1250288 A · Owner: Enichem Sintesi S.P.A. · Inventors: Greco, Alberto; Cassar, Luigi; Busetto, Carlo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Reactive stabilising compounds able to stabilise organic polymers, contain in their molecule a sterically hindered amino group and a hydrolysable silyl function. Three examples are:, where m is zero or one, R' is hydrogen or methyl Z is a, bivalent group, R is an optionally substituted hydrocarbon radical, X is an alkyl radical, n is one two or three and, Y is an organic or inorganic radical. In stabilising organic polymers, these reactive stabilising compounds can be hydrolysed at the silyl function with the formation of silanol groups, which are made to interact in order to form complex resinous stabilising structures. These latter are added in stabilising quantities to the polymer to be …
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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 February 21, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 21, 2006.
- 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.