| http://www.w3.org/ns/prov#value | - The compound of the formula I is particularly suitable as a crosslinking agent for a polymer, polycondensate or polyadduct which contains from 0.001 to 20, preferably from 0.01 to 10, very particularly preferably from 0.05 to 4, % by weight of aldehyde groups (CHO) or keto groups (CO) and is present in solution or dispersion.
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