Epoxy resins prepared by co-curing fluorinated epoxy prepolymers and non-fluorinated epoxy prepolymers
CA 1300309 C · Owner: De Giorgi, Marco · Inventors: Re, Alberto; De Giorgi, Marco
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
EPOXY RESINS PREPARED BY CO-CURING FLUORINATED EPOXY PREPOLYMERS AND NON-FLUORINATED EPOXY PREPOLYMERS". ABSTRACT OF THE DISCLOSURE: A non-fluorinated epoxy prepolymer of known type is mixed with a fluorinated epoxy prepolymer containing perfluoropolyethereal blocks or perfluoroalkylene blocks of type -(CF2CF2)n- and/or of type , and the two prepolymers are co-cured by treating the mixture with crosslinking agents of known type suitable for epoxy resins thereby obtaining a cross-linked epoxy resin having a fluorine content ? 30% by weight, preferably ? 25% by weight.
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 May 5, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 5, 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.