Fluoroelastomer compositions containing a tetraalkylammonium halide and vulcanization accelerator
CA 1331252 C · Owner: Tabb, David Leo · Inventors: Tabb, David Leo; Wilson, Janet Marie
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A fluoroelastomer composition that has enhanced adhesion to metal when cured which comprises: (a) an elastomeric copolymer of vinylidene fluoride and at least one other fluorinated monomer, (b) a vulcanization accelerator that is a quaternary phosphonium compound, (c) a crosslinking agent selected from the group consisting of a bisphenol or a polyhydroxy phenol of the formula:, where R is H or an alkyl group or an aryl group and R' is an alkyl group or an aryl group, and (d) 0.02-0.8 weight percent based on the weight of the elastomeric copolymer of a metal adhesion promoter that is a tetraalkylammonium halide where each alkyl group contains 1-10 carbon atoms and the halide is a chloride, …
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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 August 2, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 2, 2011.
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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.