Inorgano-neutralized calcined kaolins for use in silicone rubber-based formulations
AssigneeImerys Kaolin, Inc.
InventorsRobert Bradshaw, Walter J. Polestak, Edward Sare
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Abstract
Disclosed herein are inorgano-neutralized calcined kaolin comprising calcined kaolin treated with at least one basic inorganic compound, a composition comprising the inorgano-neutralized calcined, and use of the inorgano-neutralized calcined kaolin in silicone rubber formulation. Further disclosed herein are a method of making the inorgano-neutralized calcined kaolin and a method of making a silicone rubber formulation comprising the inorgano-neutralized calcined kaolin.
Claims48
An inorgano-neutralized calcined kaolin, comprising calcined kaolin treated with at least one basic inorganic compound in an amount sufficient to reduce the activity of surface acid sites of the calcined kaolin.
A composition comprising an inorgano-neutralized calcined kaolin, wherein the inorgano-neutralized calcined kaolin comprises calcined kaolin treated with at least one inorganic compound in an amount sufficient to reduce the activity of surface acid sites of the calcined kaolin.
A product, comprising an inorgano-neutralized calcined kaolin, wherein the inorgano-neutralized calcined kaolin comprises calcined kaolin treated with at least one inorganic compound in an amount sufficient to reduce the activity of surface acid sites of the calcined kaolin.
A silicone rubber formulation, comprising at least one filler comprising an inorgano-neutralized calcined kaolin, wherein the inorgano-neutralized calcined kaolin comprises calcined kaolin treated with at least one inorganic compound in an amount sufficient to reduce the activity of surface acid sites of the calcined kaolin;
- and at least one silicone polymer.
A method of making an inorgano-neutralized calcined kaolin, comprising treating calcined kaolin with at least one inorganic compound in an amount sufficient to reduce the activity of surface acid sites of the calcined kaolin, wherein said treating is in an ionizing medium.
A method of making a silicone rubber product, comprising adding into a silicone rubber formulation an inorgano-neutralized calcined kaolin, wherein the silicone rubber formulation comprises at least one silicone polymer and at least one initiator and the inorgano-neutralized calcined kaolin comprises calcined kaolin treated with at least one basic inorganic compound in an amount sufficient to reduce the activity of surface acid sites of the calcined kaolin.
A method of making a silicone rubber product, comprising adding into a silicone rubber formulation a calcined kaolin and at least one basic inorganic compound in an amount sufficient to reduce the activity of surface acid sites of the calcined kaolin, wherein the silicone rubber formulation comprises at least one silicone polymer and at least one initiator.
Dependencies are inferred from the claim text.