Curative and method
AssigneeNatural Fiber Welding, Inc.
InventorsAaron Kenneth Amstutz, Luke Michael Haverhals, Isaiah Amstutz, Skylar Clement
Life of this patent
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Abstract
A thermoset material containing β-hydroxyesters wherein said thermoset material is subject to a mechano-chemical process to regenerate an epoxide and a carboxylic acid functionality. A curative for epoxidized plant-based oils and epoxidized natural rubber is created from the reaction between a naturally occurring polyfunctional acid and an epoxidized plant-based oil is disclosed. The curative may be used to produce porosity-free castable resins and vulcanize rubber formulations based on epoxidized natural rubber. Materials made from disclosed materials may be advantageously used as leather substitutes.
Claims27
A thermoset material containing β-hydroxyesters wherein said thermoset material is subject to a mechano-chemical mixing process delivering at least 1.9×105 W/l to regenerate an epoxide and a carboxylic acid functionality, wherein said thermoset material comprises a reaction product between an epoxidized triglyceride and a naturally occurring polyfunctional carboxylic acid.
An unvulcanized rubber compound containing over 20% by weight of an elastomeric content of a previously thermoset material, wherein said previously thermoset material is mechano-chemically de-crosslinked during the mixing of the rubber compound, and wherein said previously crosslinked thermoset material is crosslinked via beta-hydroxyesters that are broken during said mixing of the rubber compound to regenerate an epoxide and a carboxylic acid functionality.
A material comprising:
- a. an epoxidized natural rubber;
- and
- b. a thermoset material reaction product of an epoxidized triglyceride and a naturally occurring polyfunctional carboxylic acid, wherein said thermoset material reaction product is subjected to a mechano-chemical process prior to incorporation into said epoxidized natural rubber, and wherein epoxidized natural rubber is subsequently mixed with said thermoset material reaction product to form said material.
A material comprising:
- a. an epoxidized natural rubber cured with a reaction product of an epoxidized triglyceride and a naturally occurring polyfunctional carboxylic acid, and
- b. wherein said material contains at least 20% by weight of a remilled elastomer that was a self-same epoxidized natural rubber cured with a reaction product of an epoxidized triglyceride and a naturally occurring polyfunctional carboxylic acid.
Dependencies are inferred from the claim text.