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US 12,747,349 B2Granted
Curing agent, method of producing curing agent, and curable composition
AssigneeDexerials Corporation
InventorKazunobu Kamiya
Life of this patent
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Abstract
Provided is a curing agent that includes a curing catalyst, and an aliphatic cyclic polyolefin resin disposed on a surface of the curing catalyst. The curing catalyst includes porous polyurea particles each bearing an aluminum chelating compound, or a water-insoluble catalyst powder having a solubility of 5% by mass or less relative to water.
Claims10
A curing agent comprising:
- a curing catalyst;
- and
- an aliphatic cyclic polyolefin resin disposed on a surface of the curing catalyst,
- wherein the curing catalyst includes porous polyurea particles each bearing an aluminum chelating compound, or a water-insoluble catalyst powder having a solubility of 5% by mass or less relative to water, and
- wherein the water-insoluble catalyst powder is an amine adduct compound.
2 more elements
A method of producing a curing agent, the method comprising:
- dispersing, in a solution including an aliphatic cyclic polyolefin resin in an amount of 1% by mass or less and an organic solvent, porous polyurea particles each bearing an aluminum chelating compound or water-insoluble catalyst powder having a solubility of 5% by mass or less relative to water, to prepare a dispersion liquid, and
- spray-drying the dispersion liquid.
Dependencies are inferred from the claim text.