Preparation of rubber compositions with organoclays
OwnerClois Powellinventor
Life of this patent
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Abstract
Rubber compositions may be prepared from rubber polymers, organoclays, accelerators, activators, vulcanizates and/or combinations thereof. A rubber polymer may be combined with an organoclay to form a clay-rubber composition. The clay-rubber composition may be cured in the presence of activators accelerators, vulcanizates and/or combinations thereof. In an embodiment, a rubber polymer may be combined with a clay to form a clay-rubber composition. The clay-rubber composition may be treated with an onium compound to form an organoclay-rubber composition. Improved mechanical and/or material properties may be observed in rubber compounds containing organoclays.
Claims44
A method of preparing a rubber polymer in the absence of carbon black, silica, silica treated carbon black or mixtures thereof, comprising;
- combining an organoclay with a rubber polymer to form an organoclay-rubber composition;
- and
- curing the organoclay-rubber composition, wherein the organoclay-rubber composition is substantially free of carbon black, silica, silica-treated carbon black or mixtures thereof.
A method of preparing a rubber compound in the absence of carbon black, silica, silica treated carbon black or mixtures thereof, comprising:
- combining a clay with a rubber polymer to form a clay-rubber composition;
- and
- combining the clay-rubber composition with an onium ion to form an organoclay-rubber composition;
- and
- curing the organoclay-rubber composition, wherein the organoclay-rubber composition is substantially free of carbon black, silica, silica-treated carbon black or mixtures thereof.
A rubber compound substantially free of carbon black, silica, silica treated carbon black or mixtures thereof made by the process, comprising:
- combining an organoclay with a rubber polymer to form a clay-rubber composition;
- and
- curing the organoclay-nitrile composition, wherein the organoclay-rubber composition is substantially free of carbon black, silica, silica-treated carbon black or mixtures thereof.
44-64. (canceled)
Dependencies are inferred from the claim text.