BLOCKED BIO-BASED CARBOXYLIC ACIDS AND THEIR USE IN THERMOSETTING MATERIALS
First Claim
1. A vinyl-blocked bio-based polyfunctional carboxylic acid, comprising the reaction product of:
- a) at least one bio-based polyfunctional carboxylic acid; and
b) at least one vinyl ether compound.
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Accused Products
Abstract
This invention relates to bio-based polyfunctional carboxylic acids reacted with vinyl ether compounds to form liquid vinyl-blocked bio-based polyfunctional carboxylic acids. These liquid vinyl-blocked bio-based polyfunctional carboxylic acids can be mixed with a polyfunctional vegetable oil-based epoxy resin to form a homogeneous curable coating composition. Upon curing at elevated temperature, thermoset coatings are formed which have excellent hardness, solvent resistance, adhesion, and flexibility. The invention also relates to the use of a curable coating composition comprising at least one polyfunctional vegetable oil-based epoxy resin and at least one vinyl-blocked bio-based polyfunctional carboxylic acid, which may be coated onto a substrate and cured thermally. Methods of making the vinyl-blocked bio-based polyfunctional carboxylic acids and curable coating compositions and substrates containing the same are also disclosed.
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Citations
30 Claims
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1. A vinyl-blocked bio-based polyfunctional carboxylic acid, comprising the reaction product of:
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a) at least one bio-based polyfunctional carboxylic acid; and b) at least one vinyl ether compound. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 13, 14, 15, 17, 19, 20, 24, 25, 30)
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Specification