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US 9,580,868 B2Granted
Method of making a paper and paperboard and the paper and paperboard thereof
AssigneeSolenis Technologies, L.P.
InventorClement L. Brungardt
Life of this patent
Estimating the term…
Abstract
A method of making paper or paperboard using a composition made by the hydrogenation or partial hydrogenation of an alkyl ketene dimer, alkenyl ketene dimer, or ketene multimer (collectively labeled H2-AKD). Also, relates to a paper or paperboard having increased water and water vapor resistance while maintaining good recyclability and repulpability.
Claims13
A method of making a paper and paperboard comprising:
- providing 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 2-34 carbon atoms in length;
- 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;
- contacting the composition with a pulp material;
- forming a paper or paperboard;
- and
- optionally, applying the composition of Formula I to the surface of the paper or paperboard.
10 more elements
A method for increasing the repulpability of a paper or paperboard comprising:
- providing a paper or paperboard;
- applying to the surface of the paper or paperboard 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 repulping the paper or paperboard;
- and wherein Formula I is the result of the hydrogenation or partial hydrogenation of an alkyl ketene dimer, alkenyl ketene dimer, or ketene multimer.
8 more elements
Dependencies are inferred from the claim text.