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US 2024/0199792 A1Published application
Two-component curable compositions
AssigneeHenkel AG & Co. KGaA
InventorStanley Shengqian Kong
Life of this patent
Estimating the term…
Abstract
Room temperature, two-component curable compositions and their uses are described. The curable compositions are alternative to isocyanate systems and are kinetically tunable to cure within seconds to months. The curable compositions are particularly useful as coatings, adhesives, sealants, and elastomers for consumer packages including food packages.
Claims18
A two-component curable composition comprising:
- a) an oxirane or oxetane functionalized component and
- b) a multifunctional acid derivative having a structure of (i)
- wherein R′ and R″, independently are H or R′—═—R″ is an aromatic ring, and may further contain substitutions on the aromatic ring;
- m=0 or 1, n is a positive integer from 2 to 100, and X is a multifunctional radical backbone, and
- wherein the multifunctional acid derivative is prepared from (1) a diacid precursor having the structure of (ii), which has a pKa1 of less than 3, or (2) the corresponding anhydride of the diacid (ii)
2 more elements
A two-component curable composition comprising:
- a) an epoxidized oil prepared from a renewable triglyceride compound and
- b) a multifunctional acid derivative having a structure of (i)
- wherein R′ and R″, independently are H or R′—═—R″ is an aromatic ring, and may further contain substitutions on the aromatic ring;
- m=0 or 1, n is a positive integer from 2 to 100, and X is a multifunctional radical backbone, and
- wherein the multifunctional acid derivative is prepared from (1) a diacid precursor having the structure of (ii), which has a pKa1 of less than 3, or (2) the corresponding anhydride of the diacid (ii)
2 more elements
A two-component curable composition comprising:
- a) oxirane or oxetane functionalized component and
- b) di- or tri-carboxylic acid having a pKa 1 less than 3.0 and selected from the group consisting of oxalic acid, maleic acid, fumaric acid, phthalic acid, trimellitic acid, and derivatives thereof.
Dependencies are inferred from the claim text.