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US 9,005,398 B2Granted
Composition and use of hydrogenated alkyl ketene dimers
AssigneeSolenis Technologies, L.P.
InventorClement L. Brungardt
Life of this patent
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Abstract
Latent dispersants were made by the hydrogenation of an alkyl ketene dimer, alkenyl ketene dimer, or ketene multimer. Adding the latent dispersant to paper or paperboard increased its resistance to water and water vapor while maintaining recyclability and repulpability. Additionally, provided is a method for increasing the repulpability of a wax coated paper or paperboard. Dispersants made by the hydrolysis of the alkyl ketene dimer, alkenyl ketene dimer, and ketene multimer are also described.
Claims11
A composition comprising Formula I:
- wherein
- R is a branched or straight chain alkyl that is at least 6-carbon atoms in length;
- R1 is a branched or straight chain alkyl containing from 2 to 34 carbon atoms;
- R2 is a branched or straight chain alkyl that is at least 6-carbon atoms in length;
- wherein
- R, R1 and R2 may independently, optionally contain a cyclic functional group;
- and n is an integer from 1 to 6;
- and wherein Formula I is the result of the hydrogenation or partial hydrogenation of an alkyl ketene dimer, alkenyl ketene dimer, or ketene multimer.
5 more elements
Dependencies are inferred from the claim text.