Adhesion between ACSM and CSM to RFL-treated polyester cord
AssigneeDayco Products, Inc.
InventorDaniel A. Pelton
Life of this patent
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Abstract
A method for improving the adhesion of alkylated chlorosulfonated polyethylene (ACSM) and chlorosulfonated polyethylene (CSM) rubber compounds to a resorcinol-formaldehyde latex (RFL) treated polyester reinforcing element using lower than conventional heat set temperatures comprising dipping the element into a RFL dip comprising chlorosulfonated polyethylene; drying the element; heat setting the element at a temperature in the range from about 300.degree. F. to about 425.degree. F. under tension; incorporating the element into the rubber compounds; and curing the element and the rubber compounds. Further, adding an amine functional polyacrylate to the RFL dip prevents failure of the adhesion of the cord at start up temperatures of about -40.degree. F.
Claims14
A polyethylene rubber article comprising:
- a polyester reinforcing element, wherein the element is dipped into a resorcinol-formaldehyde latex dip including chlorosulfonated polyethylene, dried, and heat set at a temperature in the range from about 300.degree. F. to about 460.degree. F. under tension;
- and
- wherein the element is incorporated into a polyethylene rubber compound, and the element and the rubber compound are cured.
A polyethylene rubber article comprising:
- a polyester reinforcing element, wherein the element is dipped into a resorcinol-formaldehyde latex dip including chlorosulfonated polyethylene and an amine functional polyacrylate, dried, and heat set at a temperature in the range from about 300.degree. F. to about 425.degree. F. under tension;
- and
- wherein the element is incorporated into a polyethylene rubber compound, and the element and the rubber compound are cured.
Dependencies are inferred from the claim text.