Curable fluoroelastomers
AssigneeAusimont S.p.A.
InventorsAnna Staccione, Margherita Albano
Life of this patent
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Abstract
Fluoroelastomers curable by ionic route based on vinylidene fluoride (VDF) comprising: a) 100 parts by weight of fluoroelastomer based on vinylidene fluoride (VDF) substantially polar end group free; b) from 0.05 to 5 phr of accelerant; c) from 0.5 to 15 phr of curing agent; d) from 1 to 40 phr of one or more inorganic acid acceptors, preferably bivalent metal oxides; e) from 0 to 2.5 phr, preferably from 0 to 1.5 phr of one or more basic compounds preferably hydroxides of bivalent metals or of weak acid metal salts; f) from 0 to 80 phr of reinforcing fillers.
Claims32
Fluoroelastomers curable by ionic route based on vinylidene fluoride (VDF) comprising:
- a) 100 parts by weight of fluoroelastomer based on vinylidene fluoride (VDF) having an amount of polar end group lower than 3% by moles;
- b) from 0.05 to 5 phr of accelerant;
- c) from 0.5 to 15 phr of curing agent;
- d) from 1 to 40 phr of one or more inorganic acid acceptors;
- e) from 0 to 2.5 phr of one or more basic compounds;
- f) from 0 to 80 phr of reinforcing fillers.
Dependencies are inferred from the claim text.