초록 ▼

The present disclosure provides for a method of preparing and using an emulsion for treating a papermaking process. The emulsion is an oil-in-water emulsion of alkenyl succinic anhydride emulsified with a polymer comprising at least one primary or secondary amine containing monomer. The method compr

The present disclosure provides for a method of preparing and using an emulsion for treating a papermaking process. The emulsion is an oil-in-water emulsion of alkenyl succinic anhydride emulsified with a polymer comprising at least one primary or secondary amine containing monomer. The method comprises adding an oil-in-water emulsion to the papermaking process; wherein the oil-in-water emulsion comprises alkenyl succinic anhydride emulsified with a polymer comprising at least one primary or secondary amine containing monomer; and wherein the oil-in-water emulsion is added in an amount sufficient to improve sizing of the paper produced by the papermaking process. The primary or secondary amine may be a secondary amine comprising diallylamine, and the polymer may be a diallylamine-acrylamide copolymer.

대표청구항 ▼

1. A method of sizing paper produced by a papermaking process, the method comprising: adding an oil-in-water emulsion to the papermaking process; wherein the oil-in-water emulsion comprises alkenyl succinic anhydride emulsified with a polymer comprising from 10 to 60 mole percent of at least one pri

1. A method of sizing paper produced by a papermaking process, the method comprising: adding an oil-in-water emulsion to the papermaking process; wherein the oil-in-water emulsion comprises alkenyl succinic anhydride emulsified with a polymer comprising from 10 to 60 mole percent of at least one primary or secondary amine-containing allyl-monomer, and the remainder of the polymer comprising a nonionic monomer selected from the group consisting of: acrylamide, methacrylamide, N,N-dimethylacrylamide, N,N-diethylacrylamide, N-isopropylacrylamide, N-vinylformamide, N-vinylmethylacetamide, N-vinyl pyrrolidone, hydroxyethyl methacrylate, hydroxyethyl acrylate, hydroxypropyl acrylate, hydroxypropyl methacrylate, N-t-butylacrylamide, N-methylolacrylamide, vinyl acetate, vinyl alcohol, and combinations thereof;wherein the oil-in-water emulsion has an emulsion particle size ranging from about 0.01 to about 10 microns. 2. The method of claim 1, wherein the at least one primary or secondary amine-containing allyl-monomer is a compound of Formulae I or II or a salt thereof wherein R is hydrogen or alkyl; R1, R2, R3, R4, R5, R6 are each independently selected from the group consisting of: hydrogen, alkyl, and alkoxylalkyl. 3. The method of claim 1, wherein the polymer is hydrolyzed. 4. The method of claim 1, wherein the polymer and the alkenyl succinic anhydride are present in the oil-in-water emulsion at a weight ratio ranging from 1 part to 5 parts polymer per 10 parts alkenyl succinic anhydride. 5. The method of claim 1, wherein the polymer and the alkenyl succinic anhydride are present in the oil-in-water emulsion at a polymer-to-alkenyl succinic anhydride ratio ranging from 28 to 32 parts polymer per 100 parts alkenyl succinic anhydride. 6. The method of claim 1, wherein the oil-in-water emulsion is dosed into the papermaking process at a rate ranging from 0.01 to 100 pounds of oil-in-water emulsion per ton of dry fiber. 7. The method of claim 1, further comprising adding a cationic agent to the papermaking process. 8. The method of claim 7, wherein the cationic agent is selected from the group consisting of: alum, aluminum chloride, polyaluminum chloride, long chain fatty amines, sodium aluminate, substituted polyacrylamide, chromic sulfate, animal glue, cationic thermosetting resins, a polyamide polymer, an amine-containing starch derivative, and combinations thereof. 9. The method of claim 1, wherein the oil-in-water emulsion is added to the papermaking process via a mixing chamber. 10. The method of claim 1, wherein the oil-in-water emulsion is dosed into the papermaking process at a rate ranging from 0.25 to 20 pounds of oil-in-water emulsion per ton of dry fiber. 11. The method of claim 1, wherein the oil-in-water emulsion is dosed into the papermaking process at a rate ranging from 1 to 4 pounds of oil-in-water emulsion per ton of dry fiber. 12. The method of claim 1, wherein the at least one primary or secondary amine-containing allyl-monomer has a molecular weight less than 2,000,000 Daltons. 13. An oil-in-water emulsion comprising alkenyl succinic anhydride emulsified with a polymer consisting of from 10 to 60 mole percent of diallylamine, and a nonionic monomer selected from the group consisting of: acrylamide, methacrylamide, N,N-dimethylacrylamide, N,N-diethylacrylamide, N-isopropylacrylamide, N-vinylformamide, N-vinylmethylacetamide, N-vinyl pyrrolidone, hydroxyethyl methacrylate, hydroxyethyl acrylate, hydroxypropyl acrylate, hydroxypropyl methacrylate, N-t-butylacrylamide, N-methylolacrylamide, vinyl acetate, vinyl alcohol, and combinations thereof; wherein the oil-in-water emulsion has an emulsion particle size ranging from about 0.01 to about 10 microns. 14. The oil-in-water emulsion of claim 13, wherein 1 to 5 parts by weight of the polymer are present in the oil-in-water emulsion per 10 parts by weight of the alkenyl succinic anhydride. 15. The oil-in-water emulsion of claim 13, wherein the oil-in-water emulsion comprises from 8 to 12 percent by weight alkenyl succinic anhydride. 16. The oil-in-water emulsion of claim 13, wherein the oil-in-water emulsion comprises from 1 to 5 percent by weight polymer. 17. The oil-in-water emulsion of claim 13, wherein the oil-in-water emulsion comprises from 8 to 12 percent by weight alkenyl succinic anhydride, and from 1 to 5 percent by weight polymer. 18. A method of sizing paper produced by a papermaking process, the method comprising: adding the oil-in-water emulsion of claim 13 to the papermaking process; wherein the oil-in-water emulsion is added in an amount sufficient to size the paper produced by the papermaking process. 19. The method of claim 18, wherein the papermaking process produces a product suitable for use as a beverage container. 20. The method of claim 18, wherein the oil-in-water emulsion is added to the papermaking process via a mixing chamber.