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US 2014/0155551 A1Published application
Peroxide curable fluoroelastomer compositions
AssigneeE. I. Du Pont de Nemours and Company
InventorSTEVEN R. ORIANI
Life of this patent
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Abstract
Disclosed herein is a curable composition comprising a peroxide curable fluoroelastomer, an organic peroxide, a multifunctional coagent and a polyamide. Such curable compositions cure to a high degree in a short time.
Claims15
A curable fluoroelastomer composition comprising:
- A) a peroxide curable fluoroelastomer;
- B) an organic peroxide;
- C) a multifunctional coagent;
- and
- D) 0.5 wt % to 30 wt % polyamide, based on total weight of fluoroelastomer and polyamide.
2 more elements
A process for preparing a curable fluoroelastomer composition comprising the steps of
- A) providing a peroxide curable fluoroelastomer;
- B) providing a polyamide having a melting peak temperature or a glass transition temperature;
- C) mixing said peroxide curable fluoroelastomer with said polyamide at a temperature greater than the melting peak temperature or glass transition temperature of the polyamide, whichever temperature is greater, to form a polymer blend comprising peroxide curable fluoroelastomer and 0.5 wt % to 30 wt % polyamide, based on total weight of fluoroelastomer and polyamide;
- D) cooling the polymer blend to solidify the polyamide;
- and
- E) adding a peroxide curative and a multifunctional coagent to said polymer blend at a temperature less than the melting peak temperature or glass transition temperature of the polyamide, whichever is less, to form a curable fluoroelastomer composition.
3 more elements
Dependencies are inferred from the claim text.