IP Library › Granted Patent US 12698359
Granted Patent B2
US 12698359 · App. 18/198,215 · Granted Aug 4, 2026

Cationic epoxy compositions

Inventors: Adrian Brandt (Essen, DE); Alissa Besler (Neuss, DE); Horst Beck (Neuss, DE); Sascha Andronescu (Duisburg, DE); Johannes Gerardus de Vries (Rostock, DE); Sarah Kirchhecker (Rostock, DE); Bernhard M. Stadler (Rostock, DE); Sergey Tin (Rostock, DE)
Assignee: Henkel AG & Co. KGaA
C08G59/223C08G59/36C08K3/36C09D163/00C09J163/00
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Quick Facts
Patent No.
US 12698359
App. No.
18/198,215
Granted
Aug 4, 2026
Kind
B2
Abstract

The present invention relates to an epoxy composition comprising a) a cycloaliphatic epoxy resin; b) a curing agent; and c) a bio-based epoxy compound having a structure I: The composition according to the present invention can be used as a structural adhesive, a coating and a primer.

Claims (17)

1 . An epoxy composition comprising

a) a cycloaliphatic epoxy resin;

b) a curing agent; and

c) a bio-based epoxy compound having a structure I:

2 . The epoxy composition according to claim 1 , wherein said bio-based epoxy compound having a structure I is a β-isomer.

3 . The epoxy composition according to claim 1 , wherein said bio-based epoxy compound having a structure I consists of 100% bio-based carbon atoms according ASTM D6866.

4 . The epoxy composition according to claim 1 , wherein said bio-based epoxy compound having a structure I is present in a quantity of from 1 to 80% by weight based on the total weight of the composition.

5 . The epoxy composition according to claim 1 , wherein said cycloaliphatic epoxy resin is selected from the group consisting of

and mixtures thereof.

6 . The epoxy composition according to claim 1 , wherein said cycloaliphatic epoxy resin is present in a quantity of from 10 to 98% by weight based on the total weight of the composition.

7 . The epoxy composition according to claim 1 , wherein said curing agent is selected from the group consisting of ammonium salts; pyridinium salts; imidazolium salts; guanidium salts; oxazolium salts; thiazolium salts; iodinium salts; sulfonium salts; and, phosphonium salts, and mixtures thereof.

8 . The epoxy composition according to claim 7 , wherein said curing agent is present in a quantity of from 0.01 to 15% by weight based on the total weight of the composition.

9 . The epoxy composition according to claim 7 , wherein said composition further comprises an inorganic filler.

10 . The epoxy composition according to claim 9 , wherein said inorganic filler is selected from the group consisting of silica, fumed silica, diatomaceous earth, alumina, zinc oxide, iron oxide, magnesium oxide, tin oxide, titanium oxide, magnesium hydroxide, aluminium hydroxide, magnesium carbonate, barium sulphate, gypsum, calcium silicate, talc, glass bead, sericite activated white earth, bentonite, aluminum nitride, silicon nitride, magnesia dihydroxide, alumina trihydroxide, barium sulfate, chalk, wollastonites and mixtures thereof.

11 . The epoxy composition according to claim 10 , wherein said inorganic filler is present in a quantity of from 0.1 to 80% by weight based on the total weight of the composition.

12 . A cured product of an epoxy composition according to claim 1 .

13 . The epoxy composition according to claim 1 for use as a structural adhesive, a coating or a primer.