C - Chemistry – Metallurgy – 09 – D
Patent
C - Chemistry, Metallurgy
09
D
C09D 137/00 (2006.01) C08J 7/04 (2006.01)
Patent
CA 2522251
A coating that can be adhered to a polyethylene gasoline container to substantially reduce its gas permeability, and a gasoline container treated with such a coating. A single-component cationic curing composition with increased impermeability to gasoline vapour uses a bis 'F' epoxy in combination with a catalyst and oxetane. The invention takes advantage of a narrower ultraviolet absorption spectrum of the bis 'F' epoxy, whereby ultraviolet radiation outside the UV absorption spectrum of the bis ',F' will activate the catalyst, the highly active superacid from the antimonate anion, without any significant reduction of the cationic curing reaction. In the preferred embodiment the bis 'F' and oxetane combination is used along with various additives included for flow and cosmetic purposes.
Ulcar John
Crosslink Technology Inc.
Dimock Stratton Llp
LandOfFree
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