Silicone-containing elastomer and process for the preparation thereof
AssigneeAkron Catheter, Inc.
InventorDwight L. Allen
Life of this patent
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Abstract
A novel elastomeric composition of matter comprises a suitable elastomer, a masterbatch consisting of a silicone compound in an amount of from about 10 to about 50 parts by weight based upon the weight of the elastomer, titanium dioxide, and clay. A process for the preparation of a silicone-containing elastomeric composition of matter is provided and includes the steps of masterbatching a silicone compound, clay and titanium dioxide to form a dispersion, adding the dispersion to the elastomer and thereafter forming and curing a desired product therefrom. The composition is useful in the manufacture of rubber goods such as surgical and medical products which can be single or multi-layered.
Claims3
A process for the preparation of a silicone-containing elastomeric composition of matter comprising the steps of:
- masterbatching a dimethylpolysiloxane compound, clay and titanium dioxide to form a dispersion;
- adding said dispersion to a natural rubber latex with stirring;
- and, thereafter
- forming and curing a product from the silicone-containing elastomeric composition wherein said dimethylpolysiloxane compound is present in an amount of more than 10 to about 50 parts by weight, based upon the weight of the rubber in the latex, the titanium dioxide is present in an amount of from about 5 to 15 parts by weight, based upon the weight of the rubber in the latex and the clay is present in an amount of from about 5 to 20 parts by weight, based upon the weight of the rubber in the latex.
Dependencies are inferred from the claim text.