Elastomeric compositions containing surface-modified silica gels
OwnerMeng-Jiao Wang, Joachim Floess +1inventors
InventorsMeng-Jiao Wang, Joachim Floess, Khaled Mahmud
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Abstract
Rubber compositions containing surface-modified, ambient pressure dried, highly dispersible silica gels are disclosed. Methods of making rubber compositions containing such surface-modified silica gels, and methods of functionalizing the surface-modified silica gel in-situ in the presence of an elastomeric component are also disclosed. Articles, including tires and tire components, made from the reinforced rubber compositions are also disclosed.
Claims26
A tire or tire component comprising an elastomeric composition comprising at least one elastomeric component and at least one surface-modified silica gel.
An elastomeric composition comprising a) at least one elastomeric component b) at least one surface-modified silica gel that has been formed in the presence of said elastomeric component, and c) optionally a filler material comprising carbon black, silica, silicon treated carbon black, carbon black having attached at least one organic group, or combinations thereof.
A method of making a reinforced elastomeric composition comprising;
- blending at least one elastomeric component, at least one surface-modified silica gel, and at least one surface-functionalizing agent together to form a blend;
- and subjecting said blend to conditions under which the surface-functionalizing agent reacts with said silica gel to form a surface-functionalized silica gel in the presence of said elastomeric component.
The method of clam 13, wherein said surface modified silica gel has a surface area of from about 50 to about 900 m2/gm.
A method of improving the wet-skid resistance of an elastomeric composition, comprising:
- blending an elastomeric composition with at least one surface-modified, ambient pressure dried, highly dispersible silica gel component and at least one functionalizing agent to form a reinforced blend;
- and
- forming said blend into an elastomeric component having a higher wet-skid resistance than either the same elastomeric composition containing no surface-modified silica gel, or containing the same silica gel but without surface-functionalization.
A method of improving the hysterisis of an elastomeric composition, comprising:
- blending an elastomeric composition with at least one surface-modified, ambient pressure dried, highly dispersible silica gel component and at least one functionalizing agent to form a reinforced blend;
- and
- forming said blend into an elastomeric component having a higher wet-skid resistance than either the same elastomeric composition containing no surface-modified silica gel, or containing the same silica gel but without surface-functionalization.
Dependencies are inferred from the claim text.