Composition containing a polymerizable reducing agent, kit, and method
Assignee3M Innovative Properties Company
InventorsSumita B. Mitra, Afshin Falsafi
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Abstract
The present invention provides a hardenable (i.e., curable by polymerization, crosslinking, ionic, or other chemical reaction) composition that includes polymerizable urea or thiourea compounds that function as reductants (i.e., reducing agents) in redox polymerization reactions.
Claims48
A hardenable composition comprising:
- a hardenable resin system comprising an acid-functional component and an ethylenically unsaturated component;
- a polymerizable reducing agent comprising a thiourea group;
- a secondary reducing agent different from the polymerizable reducing agent comprising a thiourea group;
- and
- an oxidizing agent.
A hardenable composition comprising:
- a hardenable resin system comprising an ethylenically unsaturated component;
- a polymerizable reducing agent comprising a thiourea group;
- a secondary reducing agent different from the polymerizable reducing agent comprising a thiourea group;
- and
- an oxidizing agent.
A hardenable composition comprising:
- a hardenable resin system comprising an acid-functional component and an ethylenically unsaturated component;
- an acid-reactive filler;
- a polymerizable reducing agent comprising a thiourea group;
- secondary reducing agent different from the polymerizable reducing agent comprising a thiourea group;
- and
- an oxidizing agent.
A kit comprising one or more containers whose contents collectively comprise:
- a hardenable resin system comprising an acid-functional component and an ethylenically unsaturated component;
- a polymerizable reducing agent comprising a thiourea group;
- a secondary reducing agent different from the polymerizable reducing agent comprising a thiourea group;
- and
- an oxidizing agent.
A kit comprising one or more containers whose contents collectively comprise:
- a hardenable resin system comprising an ethylenically unsaturated component;
- a polymerizable reducing agent comprising a thiourea group;
- a secondary reducing agent different from the polymerizable reducing agent comprising a thiourea group;
- and
- an oxidizing agent.
A kit comprising one or more containers whose contents collectively comprise:
- a hardenable resin system comprising an acid-functional component and an ethylenically unsaturated component;
- an acid-reactive filler;
- a polymerizable reducing agent comprising a thiourea group;
- a secondary reducing agent different from the polymerizable reducing agent comprising a thiourea group;
- and
- an oxidizing agent.
A method of making a hardenable composition, the method comprising:
- providing a resin system comprising an acid-functional component and am ethylenically unsaturated component;
- providing a polymerizable reducing agent comprising a thiourea group;
- optionally providing an acid-reactive filler;
- providing a secondary reducing agent different from the polymerizable reducing agent comprising a thiourea group;
- providing an oxidizing agent;
- and
- mixing the resin system, the reducing agent, the optional acid-reactive filler, the optional secondary reducing agent, and the oxidizing agent to form the composition.
A method of making a hardenable composition, the method comprising:
- providing a hardenable resin system comprising an ethylenically unsaturated component;
- providing a polymerizable reducing agent comprising a thiourea group;
- providing a secondary reducing agent different from the polymerizable reducing agent comprising a thiourea group;
- providing an oxidizing agent;
- and
- mixing the resin system, the reducing agent, the secondary reducing agent, and the oxidizing agent to form the composition.
A method of cementing a dental article to a tooth or bone, the method comprising:
- providing a dental article;
- providing a hardenable composition comprising:
- a resin system comprising an acid-functional component and an ethylenically unsaturated component;
- a polymerizable reducing agent comprising a thiourea group;
- an optional acid-reactive filler;
- a secondary reducing agent different from the polymerizable reducing agent comprising a thiourea group;
- and
- an oxidizing agent;
- and
- cementing the dental article to the tooth or bone using the hardenable composition.
A method of filling a tooth, the method comprising:
- providing a hardenable composition comprising:
- a resin system comprising an acid-functional component and an ethylenically unsaturated component;
- a polymerizable reducing agent comprising a thiourea group;
- an optional acid-reactive filler;
- a secondary reducing agent different from the polymerizable reducing agent comprising a thiourea group;
- and
- an oxidizing agent;
- and
- applying the hardenable composition to the tooth.
Dependencies are inferred from the claim text.