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US 2016/0355672 A1Published application
Zinc Ionomer Rubber Activator
AssigneeNIKE, Inc.
InventorThomas W. Wilson, III
Life of this patent
Estimating the term…
Abstract
Curable rubber compositions and cured articles are based on the use of zinc activator compositions for the sulfur cure. Activator compositions contain zinc and a polymeric component having a plurality of COOH groups, at least some of which are neutralized with the zinc. With polymeric zinc activators, sulfur cure can be activated at levels of zinc below those used in conventional systems.
Claims21
1-28. (canceled)
A method of making a curable rubber composition, comprising mixing together:
- at least one curable rubber;
- a copolymer containing a plurality of COOH groups;
- and
- a Zn+2 compound,
- wherein the curable rubber composition comprises 0.01-0.5% by weight Zn.
2 more elements
A method of making a curable rubber composition, comprising mixing together:
- at least one curable rubber;
- a copolymer containing a plurality of COOH groups associated with zinc ions;
- and
- a filler that has active hydrogens on its surface;
- wherein the curable rubber composition comprises 0.01-0.5% by weight zinc.
2 more elements
A method of making a curable rubber composition, comprising mixing together:
- at least one curable rubber;
- a partially zinc neutralized carboxylic polymer;
- and
- a filler that has active hydrogens on its surface;
- wherein the curable rubber composition comprises 0.01-0.5% by weight zinc.
2 more elements
Dependencies are inferred from the claim text.