Method of making a paper and paperboard and the paper and paperboard thereof
View Patent ↗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 H 2 -AKD). Also, relates to a paper or paperboard having increased water and water vapor resistance while maintaining good recyclability and repulpability.
1. 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;
R 1 is a branched or straight chain alkyl containing from 2-34 carbon atoms in length;
R 2 is a branched or straight chain alkyl that is at least 6-carbon atoms in length;
wherein
R, R 1 and R 2 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.
2. The method according to claim 1 , wherein the paper or paperboard is formed and the composition comprising Formula I is applied to the surface of the formed paper or paperboard.
3. The method according to claim 1 , wherein the composition further comprises at least one additional wax.
4. The method according to claim 1 , wherein the composition optionally comprises a thermoplastic polymeric material, hydrocarbon resins, polyethylene acetate, polyethylene, or any combination thereof.
5. A paper or paperboard produced according to the method of claim 1 .
6. 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;
R 1 is a branched or straight chain alkyl containing from 2 to 34 carbon atoms;
R 2 is a branched or straight chain alkyl that is at least 6-carbon atoms in length;
wherein
R, R 1 and R 2 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.
7. The method according to claim 6 , wherein the composition of Formula I, further comprises at least one additional wax.
8. The method of claim 6 , wherein the composition optionally comprises a thermoplastic polymeric material, hydrocarbon resins, polyethylene acetate, polyethylene, or any combination thereof.
9. The method according to claim 6 , wherein repulping pH is from about 5 to about 14.
10. The method according to claim 6 , wherein the repulping temperature is from about 20° C. to about 100° C.
11. The method according to claim 6 , wherein the composition of Formula I comprises from about 1% to 100% of the total weight of the composition.
12. The method according to claim 6 , wherein the composition of Formula I comprises from about 15% to about 25% of the total weight of the composition.
13. A coated paper or paperboard comprising:
providing a paper or paperboard
applying the composition of claim 1 to the surface of the paper or paperboard.