Reinforced elastomeric articles
AssigneeDunlop Limited
InventorsPeter Lothar Ernst Moring, Kenneth William John Raines
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Abstract
The invention relates to a method of bonding certain aromatic polyamide to nitrile rubber compositions by applying to an aromatic polyamide a coating of a vinyl chloride polymer, preferably as a latex or plastisol, assembling the coated aromatic polyamide with the rubber composition and vulcanizing the rubber in contact with the coated aromatic polyamide. Preferably both the coating and rubber composition contain aldehyde condensation resin-forming ingredients or a partially condensed aldehyde resin. The reinforced composites produced are useful in hose, belting or tires.
Claims23
A method of bonding an aromatic polyamide which, if manufactured as a fibre, would be termed an aramid to a nitrile rubber composition comprises applying to the aromatic polyamide a coating of a vinyl chloride polymer, assembling the coated aromatic polyamide with the rubber composition and vulcanising the rubber in contact with the coated surface of said aromatic polyamide.
A method according to any of the preceding claims wherein the rubber composition includes aldehyde condensation resin-forming ingredients or a partially condensed aldehyde resin.
A composite article comprising a vulcanised nitrile rubber composition bonded to a vinyl chloride polymer coated surface of an aromatic polyamide which, if manufactured as a fiber, would be termed an aramid.
Dependencies are inferred from the claim text.