Rubber-based elastomeric compositions and articles of manufacture produced therewith
Elastomeric materials and articles of manufacture produced using elastomeric materials are disclosed. In an embodiment, a rubber-based elastomeric material includes a diene rubber component, a reinforcing component, and a wax component. The rubber-based elastomeric material is provided in the form of a film having a thickness of at least about 30 mils. The film exhibits a flexural modulus of less than about 0.06 MPa.
1. A rubber-based elastomeric glove comprising:
a rubber component, wherein the rubber component consists of a diene rubber;
a silica reinforcing component in an amount of about 0.5 to about 1.5 parts per hundred rubber (PHR);
a first antiozonant wax in a total amount of about 0.2 to about 1.0 PHR, wherein the first antiozonant wax has a first kinematic viscosity at 100° C., and wherein the first antiozonant wax has a first congealing point; and
a second antiozonant wax in a total amount of about 0.75 to about 2.5 PHR, wherein the second antiozonant wax has a second kinematic viscosity at 100° C. greater than the first kinematic viscosity, and wherein the second antiozonant wax has a second congealing point greater than the first congealing point;
wherein the elastomeric glove has a thickness of at least about 30 mils, and wherein the elastomeric glove exhibits a flexural modulus of less than about 0.06 MPa.
2. The rubber-based elastomeric glove of claim 1 , wherein the rubber-based elastomeric glove is formed by:
milling the diene rubber to form a first milled diene rubber portion and a second milled diene rubber portion;
forming a first mixture by mixing the silica reinforcing component in an amount of about 0.5 to about 1.5 parts per hundred rubber (PHR) with the first milled diene rubber portion and the first antiozonant wax;
forming a second mixture by mixing the second antiozonant wax with the second milled diene rubber portion;
mixing the first mixture, the second mixture, and a solvent to form a viscous solution; and
dipping a glove mold into the viscous solution for a selected number of dips, and evaporating the solvent from the glove mold between dips to form the rubber-based elastomeric glove.
3. The rubber-based elastomeric glove of claim 2 , wherein forming the first mixture comprises mixing the silica reinforcing component, a first antidegradant, a first vulcanizing agent, and a first vulcanization accelerator with the first milled diene rubber portion and the first antiozonant wax.
4. The rubber-based elastomeric glove of claim 2 wherein forming the second mixture comprises mixing the second antiozonant wax, a second antidegradant, a second vulcanizing agent, a second vulcanization activator, a second vulcanization accelerator, and a pigment with the second milled diene rubber portion.
5. The rubber-based elastomeric glove of claim 2 wherein the first antiozonant wax is provided in an amount of about 0.2 to about 0.4 PHR and the second antiozonant wax is provided in an amount of about 0.75 to about 1.5 PHR.
6. The rubber-based elastomeric glove of claim 2 wherein:
forming the first mixture comprises excluding the second antiozonant wax from the first mixture; and
forming the second mixture comprises excluding the silica reinforcing component from the second mixture.
7. The rubber-based elastomeric glove of claim 2 wherein:
the first mixture consists essentially of the first antiozonant wax, the silica reinforcing component and the first milled diene rubber portion; and
the second mixture consists essentially of the second antiozonant wax and the second milled diene rubber portion.
8. The rubber-based elastomeric glove of claim 2 wherein:
the first mixture consists of the first milled diene rubber component, the silica reinforcing component, the first antiozonant wax, a first antidegradant, a first vulcanizing agent, and a first vulcanization accelerator; and
the second mixture consists of the second milled diene rubber component, the second antiozonant wax, a second antidegradant, a second vulcanizing agent, a second vulcanization activator, a second vulcanization accelerator, and a pigment.
9. A rubber-based elastomeric material consisting of:
a diene rubber;
a reinforcing component;
a wax component consisting of first antiozonant wax in a total amount of about 0.2 to about 1.0 parts per hundred rubber (PHR), wherein the first antiozonant wax has a first kinematic viscosity at 100° C., and wherein the first antiozonant wax has a first congealing point; and a second antiozonant wax in a total amount of about 0.75 to about 2.5 PHR, wherein the second antiozonant wax has a second kinematic viscosity at 100° C. greater than the first kinematic viscosity, and wherein the second antiozonant wax has a second congealing point greater than the first congealing point; and
at most five components selected from the group consisting of antidegradants, vulcanizing agents, vulcanizing activators, vulcanizing accelerators and pigments,
wherein the rubber-based elastomeric material is provided in the form of a film having a thickness of at least about 30 mils, and wherein the film exhibits a flexural modulus of less than about 0.06 MPa.