Additives for binders and / or fiber compositions

Abstract

Provided is a composition comprising fibers, a binder, and an additive, wherein the binder comprises a polymeric colloidal dispersion comprising 0.1 to 25 weight percent, based on the total weight of the polymer, of acid-functionalized monomer units, the polymeric colloidal dispersion having a pH of 5 to 12, and the additive comprises a water-soluble polymerization reaction product of monomer units comprising 5 to 99 weight percent of monomer units represented by at least one of general formulas A1 or A2, as described herein. Related methods and / or uses are also provided.

Description

[Technical Field]

[0001] The disclosed technology relates to compositions comprising fibers, a binder, and additives, which may improve certain properties of the composition and / or reduce the amount of binder required in the composition. [Background technology]

[0002] Compositions containing fibers and binders can be used in many applications, including the production of fibrous substrates, nonwoven mats, and / or paper. In certain of these compositions, where the composition is formed into a sheet-like material, it has been found that the binder may migrate to the surface during the formation of the composition under certain conditions and / or with certain compositions. For example, when producing paper intended for use as a filtration medium, the binder may migrate to the surface of the paper and thus be unevenly distributed throughout the thickness of the paper. This may result in undesirable physical properties of the paper, and may require the addition of more binder or other changes to the composition and / or structure to ensure that the paper meets certain required physical properties.

[0003] The disclosed technology solves this problem (and possibly others) by at least partially preventing binder migration in the composition during manufacturing through the addition of additives as described herein. Summary of the Invention [Means for solving the problem]

[0004] The subject matter disclosed herein is a composition comprising fibers, a binder, and an additive, wherein the binder comprises a polymeric colloidal dispersion comprising 0.1 to 25 weight percent, based on the total weight of the polymer, of acid-functionalized monomer units, the polymeric colloidal dispersion having a pH of 5 to 12, and the additive comprises a water-soluble polymerization reaction product of monomer units comprising 5 to 99 weight percent, based on the total weight of the additive, of monomer units represented by at least one of the following general formulas A1 or A2:

[0005] [ka] wherein, independently for each molecule of a monomer unit represented by at least one of general formulas A1 or A2, R 1 is H, CH3, or C2H5, and R 2 is H or a C1-C4 alkyl group, and R 3 is a C1-C6 alkyl group or a C1-C6 alkylene group, and R 4 is H or a C1-C4 alkyl group, and R 5 is H or a C1-C4 alkyl group, and R 6 is H, CH3, or C2H5, and R 7 is a C1-C6 alkyl group or a C1-C6 alkylene group, and R 8 is H or a C1-C4 alkyl group, and R 9 is H or a C1-C4 alkyl group.

[0006] Also disclosed is a method of making a composition, comprising combining, in any order, a fiber, a binder, and an additive, wherein the binder comprises a polymeric colloidal dispersion comprising 0.1 to 25 weight percent, based on the total weight of the polymer, of acid-functionalized monomer units, the polymeric colloidal dispersion having a pH of 5 to 12, and the additive comprises a water-soluble polymerization reaction product of monomer units comprising 5 to 99 weight percent, based on the total weight of the additive, of monomer units represented by at least one of the following general formulas A1 or A2:

[0007] [ka] wherein, independently for each molecule of a monomer unit represented by at least one of general formulas A1 or A2, R 1 is H, CH3, or C2H5, and R 2 is H or a C1-C4 alkyl group, and R 3 is a C1-C6 alkyl group or a C1-C6 alkylene group, and R4 is H or a C1-C4 alkyl group, and R 5 is H or a C1-C4 alkyl group, and R 6 is H, CH3, or C2H5, and R 7 is a C1-C6 alkyl group or a C1-C6 alkylene group, and R 8 is H or a C1-C4 alkyl group, and R 9 is H or a C1-C4 alkyl group.

[0008] Also disclosed is a method of making a fibrous substrate, comprising forming fibers and a binder into a fibrous substrate, and subsequently adding an additive to the fibrous substrate, wherein the binder comprises a polymeric colloidal dispersion comprising 0.1 to 25 weight percent, based on the total weight of the polymer, of acid-functionalized monomer units, the polymeric colloidal dispersion having a pH of 5 to 12, and the additive comprises a water-soluble polymerization reaction product of monomer units comprising 5 to 99 weight percent, based on the total weight of the additive, of monomer units represented by at least one of the following general formulas A1 or A2:

[0009] [ka] wherein, independently for each molecule of a monomer unit represented by at least one of general formulas A1 or A2, R 1 is H, CH3, or C2H5, and R 2 is H or a C1-C4 alkyl group, and R 3 is a C1-C6 alkyl group or a C1-C6 alkylene group, and R 4 is H or a C1-C4 alkyl group, and R 5 is H or a C1-C4 alkyl group, and R 6 is H, CH3, or C2H5, and R 7 is a C1-C6 alkyl group or a C1-C6 alkylene group, and R 8 is H or a C1-C4 alkyl group, and R 9 is H or a C1-C4 alkyl group.

[0010] Also provided is a method of improving at least one physical property of a fibrous substrate, the fibrous substrate comprising fibers and a binder, the method comprising adding an additive to the fibrous substrate, the binder comprising a polymeric colloidal dispersion comprising 0.1 to 25 weight percent, based on the total weight of the polymer, of acid-functionalized monomer units, the polymeric colloidal dispersion having a pH of 5 to 12, and the additive comprising a water-soluble polymerization reaction product of monomer units comprising 5 to 99 weight percent, based on the total weight of the additive, of monomer units represented by at least one of the following general formulas A1 or A2:

[0011] [ka] wherein, independently for each molecule of a monomer unit represented by at least one of general formulas A1 or A2, R 1 is H, CH3, or C2H5, and R 2 is H or a C1-C4 alkyl group, and R 3 is a C1-C6 alkyl group or a C1-C6 alkylene group, and R 4 is H or a C1-C4 alkyl group, and R 5 is H or a C1-C4 alkyl group, and R 6 is H, CH3, or C2H5, and R 7 is a C1-C6 alkyl group or a C1-C6 alkylene group, and R 8 is H or a C1-C4 alkyl group, and R 9 is H or a C1-C4 alkyl group.

[0012] Also disclosed is a method of making a fibrous substrate comprising fibers and a binder, the method comprising adding an additive to the fibrous substrate, wherein the additive reduces the amount of binder required in the fibrous substrate to substantially maintain physical properties of the fibrous substrate, the binder comprising a polymeric colloidal dispersion comprising 0.1 to 25 weight percent, based on the total weight of the polymer, of acid-functionalized monomer units, the polymeric colloidal dispersion having a pH of 5 to 12, and the additive comprising 5 to 99 weight percent, based on the total weight of the additive, of monomer units represented by at least one of the following general formulas A1 or A2:

[0013] [ka] wherein, independently for each molecule of a monomer unit represented by at least one of general formulas A1 or A2, R 1 is H, CH3, or C2H5, and R 2 is H or a C1-C4 alkyl group, and R 3 is a C1-C6 alkyl group or a C1-C6 alkylene group, and R 4 is H or a C1-C4 alkyl group, and R 5 is H or a C1-C4 alkyl group, and R 6 is H, CH3, or C2H5, and R 7 is a C1-C6 alkyl group or a C1-C6 alkylene group, and R 8 is H or a C1-C4 alkyl group, and R 9 is H or a C1-C4 alkyl group. DETAILED DESCRIPTION OF THE INVENTION

[0014] The following embodiments of the present subject matter are contemplated. 1. A composition comprising fibers, a binder, and an additive, wherein the binder comprises a polymeric colloidal dispersion comprising 0.1 to 25 weight percent, based on the total weight of the polymer, of acid-functionalized monomer units, the polymeric colloidal dispersion having a pH of 5 to 12, and the additive comprises a water-soluble polymerization reaction product of monomer units comprising 5 to 99 weight percent, based on the total weight of the additive, of monomer units represented by at least one of the following general formulas A1 or A2:

[0015] [ka] wherein, independently for each molecule of a monomer unit represented by at least one of general formulas A1 or A2, R 1 is H, CH3, or C2H5, and R 2 is H or a C1-C4 alkyl group, and R 3 is a C1-C6 alkyl group or a C1-C6 alkylene group, and R 4 is H or a C1-C4 alkyl group, and R 5 is H or a C1-C4 alkyl group, and R 6 is H, CH3, or C2H5, and R 7 is a C1-C6 alkyl group or a C1-C6 alkylene group, and R 8 is H or a C1-C4 alkyl group, and R 9 is H or a C1-C4 alkyl group. 2. Independently for each molecule of a monomer unit represented by at least one of general formulas A1 or A2, R 1 is H or CH3, and R 2 is H or CH3, and R 4 is H or CH3, and R 5 is H or CH3, and R 6 is H or CH3, and R 8 is H or CH3, and R 9 is H or CH3. 3. Independently for each molecule of a monomer unit represented by at least one of general formulas A1 or A2, R 3is a C1-C4 alkyl group or a C1-C4 alkylene group, and R 7 3. The composition of embodiment 1 or 2, wherein is a C1-C4 alkyl group or a C1-C4 alkylene group. 4. Independently for each molecule of a monomer unit represented by at least one of general formulas A1 or A2, R 1 is CH3 and R 2 is H and R 3 is C3H6 and R 4 is CH3 and R 5 is CH3 and R 6 is CH3 and R 7 is C3H6 and R 8 is CH3 and R 9 The composition of any one of embodiments 1-3, wherein is CH3. 5. The composition of any one of embodiments 1-4, wherein the binder is present in the composition in an amount of 5 to 60 weight percent, based on the total dry weight of the composition. 6. The composition of any one of embodiments 1-5, wherein the binder is present in the composition in an amount of 5 to 40 weight percent, based on the total dry weight of the composition. 7. The composition of any one of embodiments 1-6, wherein the binder is present in the composition in an amount of 5 to 30 weight percent, based on the total dry weight of the composition. 8. The composition of any one of embodiments 1-7, wherein the binder is present in the composition in an amount of 5 to 25 weight percent, based on the total dry weight of the composition. 9. The composition of any one of embodiments 1-8, wherein the binder is present in the composition in an amount of 10 to 60 weight percent, based on the total dry weight of the composition. 10. The composition of any one of embodiments 1-9, wherein the binder is present in the composition in an amount of 10 to 40 weight percent, based on the total dry weight of the composition. 11. The composition of any one of embodiments 1-10, wherein the binder is present in the composition in an amount of 10 to 30 weight percent, based on the total dry weight of the composition. 12. The composition of any one of embodiments 1-11, wherein the binder is present in the composition in an amount of 10 to 25 weight percent, based on the total dry weight of the composition. 13. The composition of any one of embodiments 1 to 12, wherein the composition comprises 0.01 to 30 parts of additive per 100 parts of binder. 14. The composition of any one of embodiments 1 to 13, wherein the composition comprises 0.01 to 25 parts of additive per 100 parts of binder. 15. The composition of any one of embodiments 1-14, wherein the composition comprises 0.05 to 20 parts of additive per 100 parts of binder. 16. The composition of any one of embodiments 1-15, wherein the composition comprises 0.05 to 10 parts of additive per 100 parts of binder. 17. The composition of any one of embodiments 1-16, wherein the composition comprises 0.1 to 20 parts of additive per 100 parts of binder. 18. The composition of any one of embodiments 1-17, wherein the composition comprises 0.1 to 10 parts of additive per 100 parts of binder. 19. The composition of any one of embodiments 1-18, wherein the composition comprises 0.1 to 5 parts of additive per 100 parts of binder. 20. The composition of any one of embodiments 1-19, wherein the composition comprises 0.1 to 2.5 parts of additive per 100 parts of binder. 21. The composition of any one of embodiments 1 to 20, wherein the composition comprises 0.2 to 5 parts of additive per 100 parts of binder. 22. The composition of any one of embodiments 1-21, wherein the composition comprises 0.2 to 2.5 parts of additive per 100 parts of binder. 23. The composition of any one of embodiments 1-22, wherein the polymer comprises 0.5 to 10 weight percent of acid-functionalized monomer units, based on the total weight of the polymer. 24. The composition of any one of embodiments 1 to 23, wherein the polymer comprises 1 to 5 weight percent of acid-functionalized monomer units, based on the total weight of the polymer. 25. The composition of any one of embodiments 1 to 24, wherein the colloidal dispersion of the polymer has a pH of 7 to 12. 26. The composition of any one of embodiments 1 to 25, wherein the colloidal dispersion of the polymer has a pH of 7 to 10. 27. The composition of any one of embodiments 1 to 26, wherein the colloidal dispersion of the polymer has a pH of 7 to 9. 28. The composition of any one of embodiments 1 to 27, wherein the colloidal dispersion of the polymer has a pH of 7.5 to 9. 29. The composition of any one of embodiments 1 to 28, wherein the colloidal dispersion of the polymer has a pH of 8 to 9. 30. The composition of any one of embodiments 1-29, wherein the polymer colloidal dispersion comprises at least one of an acrylic latex, a styrene-butadiene resin latex, a vinyl chloride copolymer latex, or a vinylidene chloride copolymer latex. 31. The composition of any one of embodiments 1 to 30, wherein the water-soluble polymerization reaction product of the monomer units comprises 20 to 95 weight percent of the monomer units represented by at least one of general formulas A1 or A2, based on the total weight of the additive. 32. The composition of any one of embodiments 1 to 31, wherein the water-soluble polymerization reaction product of the monomer units comprises 50 to 80 weight percent of monomer units represented by at least one of general formulas A1 or A2, based on the total weight of the additive. 33. The composition of any one of embodiments 1 to 32, wherein the water-soluble polymerization reaction product of the monomer units comprises 1 to 95 weight percent, based on the total weight of the additive, of vinyl-group-containing monomer units other than monomer units represented by at least one of general formulas A1 or A2. 34. The composition of any one of embodiments 1 to 33, wherein the water-soluble polymerization reaction product of the monomer units comprises 5 to 80 weight percent, based on the total weight of the additive, of vinyl-group-containing monomer units other than monomer units represented by at least one of general formulas A1 or A2. 35. The composition of any one of embodiments 1 to 34, wherein the water-soluble polymerization reaction product of the monomer units comprises 20 to 50 weight percent, based on the total weight of the additive, of vinyl-group-containing monomer units other than monomer units represented by at least one of general formulas A1 or A2. 36. The composition of any one of embodiments 33 to 35, wherein the vinyl group-containing monomer units other than the monomer units represented by at least one of general formulas A1 or A2 comprise at least one acrylate monomer and / or at least one styrene butadiene monomer. 37. The composition of embodiment 36, wherein the at least one acrylate comprises at least one of methyl acrylate, methyl methacrylate, ethyl acrylate, ethyl methacrylate, butyl acrylate, butyl methacrylate, ethylhexyl acrylate, or ethylhexyl methacrylate. 38. At least one acrylate comprises at least one monomer unit represented by the following general formula B:

[0016] [ka] wherein, independently for each molecule of the monomer unit, R 10 is H, CH3, or C2H5, and R 11 is a poly(alkylene oxide) having a number average molecular weight of 88 to 1200 g / mole, the poly(alkylene oxide) being composed of repeating alkylene oxide units, each alkylene oxide unit independently having 2 to 4 carbons; R 12 is H, a C1-C8 alkyl group, or a C1-C8 alkylene group. 39.R 11 is a poly(alkylene oxide) having a number average molecular weight of 132 to 1100 g / mol. 40. The composition of embodiment 38 or 39, wherein at least 90 weight percent of the alkylene oxide units of the poly(alkylene oxide) have 2 carbons, based on the total weight of the poly(alkylene oxide). 41.R 12 is H, CH3, or C2H5. 42. The water-soluble polymerization reaction product of monomer units comprises 1 to 95 weight percent of monomer units represented by the following general formula B:

[0017] [ka] wherein, independently for each molecule of the monomer unit, R 10 is H, CH3, or C2H5, and R 11 is a poly(alkylene oxide) having a number average molecular weight of 88 to 1200 g / mole, the poly(alkylene oxide) being composed of repeating alkylene oxide units, each alkylene oxide unit independently having 2 to 4 carbons; R 12 33. The composition of any one of embodiments 1-32, wherein is H, a C1-C8 alkyl group, or a C1-C8 alkylene group. 43. A water-soluble polymerization reaction product of monomer units comprising 5 to 80 weight percent of monomer units represented by the following general formula B:

[0018] [ka] wherein, independently for each molecule of the monomer unit, R 10 is H, CH3, or C2H5, and R 11 is a poly(alkylene oxide) having a number average molecular weight of 88 to 1200 g / mole, the poly(alkylene oxide) being composed of repeating alkylene oxide units, each alkylene oxide unit independently having 2 to 4 carbons; R 12 33. The composition of any one of embodiments 1-32, wherein is H, a C1-C8 alkyl group, or a C1-C8 alkylene group. 44. A water-soluble polymerization reaction product of monomer units comprising 20 to 50 weight percent of monomer units represented by the following general formula B:

[0019] [ka] wherein, independently for each molecule of the monomer unit, R 10 is H, CH3, or C2H5, and R 11 is a poly(alkylene oxide) having a number average molecular weight of 88 to 1200 g / mole, the poly(alkylene oxide) being composed of repeating alkylene oxide units, each alkylene oxide unit independently having 2 to 4 carbons; R 12 33. The composition of any one of embodiments 1-32, wherein is H, a C1-C8 alkyl group, or a C1-C8 alkylene group. 45.R 11 45. The composition of any one of embodiments 42-44, wherein is a poly(alkylene oxide) having a number average molecular weight of 132 to 1100 g / mol. 46. ​​The composition of any one of embodiments 42-45, wherein at least 90 weight percent of the alkylene oxide units of the poly(alkylene oxide) have 2 carbons, based on the total weight of the poly(alkylene oxide). 47.R 12 is H, CH3, or C2H5. 48. The composition of any one of embodiments 1-47, wherein the fibers comprise at least one of natural fibers, glass fibers, or synthetic fibers. 49. The composition of any one of embodiments 1-48, wherein the fibers comprise natural fibers. 50. The composition of embodiment 49, wherein the natural fibers comprise cellulose fibers. 51. The composition of embodiment 49 or 50, wherein the fibers further comprise at least one additional type of fiber other than natural fibers. 52. The composition of embodiment 51, wherein the at least one additional type of fiber comprises at least one of glass fibers or synthetic fibers. 53. A fibrous substrate comprising the composition of any one of embodiments 1-52 formed into a substrate. 54. A method of making a composition, comprising combining, in any order, fibers, a binder, and an additive, wherein the binder comprises a polymeric colloidal dispersion comprising 0.1 to 25 weight percent, based on the total weight of the polymer, of acid-functionalized monomer units, the polymeric colloidal dispersion having a pH of 5 to 12, and the additive comprises a water-soluble polymerization reaction product of monomer units comprising 5 to 99 weight percent, based on the total weight of the additive, of monomer units represented by at least one of the following general formulas A1 or A2:

[0020] [ka] wherein, independently for each molecule of a monomer unit represented by at least one of general formulas A1 or A2, R 1 is H, CH3, or C2H5, and R 2 is H or a C1-C4 alkyl group, and R 3 is a C1-C6 alkyl group or a C1-C6 alkylene group, and R 4 is H or a C1-C4 alkyl group, and R 5 is H or a C1-C4 alkyl group, and R 6 is H, CH3, or C2H5, and R 7 is a C1-C6 alkyl group or a C1-C6 alkylene group, and R 8 is H or a C1-C4 alkyl group, and R 9 is H or a C1-C4 alkyl group. 55. A method for making a fibrous substrate, comprising forming fibers and a binder into a fibrous substrate, and subsequently adding an additive to the fibrous substrate, wherein the binder comprises a polymeric colloidal dispersion comprising 0.1 to 25 weight percent, based on the total weight of the polymer, of acid-functionalized monomer units, the polymeric colloidal dispersion having a pH of 5 to 12, and the additive comprises a water-soluble polymerization reaction product of monomer units comprising 5 to 99 weight percent, based on the total weight of the additive, of monomer units represented by at least one of the following general formulas A1 or A2:

[0021] [ka] wherein, independently for each molecule of a monomer unit represented by at least one of general formulas A1 or A2, R 1 is H, CH3, or C2H5, and R 2 is H or a C1-C4 alkyl group, and R 3 is a C1-C6 alkyl group or a C1-C6 alkylene group, and R 4 is H or a C1-C4 alkyl group, and R 5 is H or a C1-C4 alkyl group, and R 6 is H, CH3, or C2H5, and R 7 is a C1-C6 alkyl group or a C1-C6 alkylene group, and R 8 is H or a C1-C4 alkyl group, and R 9 is H or a C1-C4 alkyl group. 56. A method for improving at least one physical property of a fibrous substrate, the fibrous substrate comprising fibers and a binder, the method comprising adding an additive to the fibrous substrate, the binder comprising a polymeric colloidal dispersion comprising 0.1 to 25 weight percent, based on the total weight of the polymer, of acid-functionalized monomer units, the polymeric colloidal dispersion having a pH of 5 to 12, and the additive comprising a water-soluble polymerization reaction product of monomer units comprising 5 to 99 weight percent, based on the total weight of the additive, of monomer units represented by at least one of the following general formulas A1 or A2:

[0022] [ka] wherein, independently for each molecule of a monomer unit represented by at least one of general formulas A1 or A2, R 1 is H, CH3, or C2H5, and R 2 is H or a C1-C4 alkyl group, and R 3 is a C1-C6 alkyl group or a C1-C6 alkylene group, and R 4 is H or a C1-C4 alkyl group, and R 5 is H or a C1-C4 alkyl group, and R 6 is H, CH3, or C2H5, and R 7 is a C1-C6 alkyl group or a C1-C6 alkylene group, and R 8 is H or a C1-C4 alkyl group, and R 9 is H or a C1-C4 alkyl group. 57. A method for making a fibrous substrate, the method comprising: adding an additive to the fibrous substrate; the additive reducing the amount of binder required in the fibrous substrate to substantially maintain the physical properties of the fibrous substrate; the binder comprising a polymeric colloidal dispersion comprising 0.1 to 25 weight percent, based on the total weight of the polymer, of acid-functionalized monomer units; the polymeric colloidal dispersion having a pH of 5 to 12; and the additive comprising a water-soluble polymerization reaction product of monomer units comprising 5 to 99 weight percent, based on the total weight of the additive, of monomer units represented by at least one of the following general formulas A1 or A2:

[0023] [ka] wherein, independently for each molecule of a monomer unit represented by at least one of general formulas A1 or A2, R 1 is H, CH3, or C2H5, and R 2 is H or a C1-C4 alkyl group, and R 3 is a C1-C6 alkyl group or a C1-C6 alkylene group, and R 4is H or a C1-C4 alkyl group, and R 5 is H or a C1-C4 alkyl group, and R 6 is H, CH3, or C2H5, and R 7 is a C1-C6 alkyl group or a C1-C6 alkylene group, and R 8 is H or a C1-C4 alkyl group, and R 9 is H or a C1-C4 alkyl group. 58. Independently for each molecule of a monomer unit represented by at least one of general formulas A1 or A2, R 1 is H or CH3, and R 2 is H or CH3, and R 4 is H or CH3, and R 5 is H or CH3, and R 6 is H or CH3, and R 8 is H or CH3, and R 9 58. The method of any one of embodiments 54-57, wherein is H or CH3. 59. Independently for each molecule of a monomer unit represented by at least one of general formulas A1 or A2, R 3 is a C1-C4 alkyl group or a C1-C4 alkylene group, and R 7 The method of any one of embodiments 54 to 58, wherein is a C1 to C4 alkyl group or a C1 to C4 alkylene group. 60. Independently for each molecule of a monomer unit represented by at least one of general formulas A1 or A2, R 1 is CH3 and R 2 is H and R 3 is C3H6 and R 4 is CH3 and R 5 is CH3 and R 6 is CH3 and R 7 is C3H6 and R 8 is CH3 and R 9 The method of any one of embodiments 54-59, wherein is CH3. 61. The method of any one of embodiments 54-60, wherein the binder is present in the composition in an amount of 5 to 60 weight percent, based on the total dry weight of the composition. 62. The method of any one of embodiments 54-61, wherein the binder is present in the composition in an amount of 5 to 40 weight percent, based on the total dry weight of the composition. 63. The method of any one of embodiments 54-62, wherein the binder is present in the composition in an amount of 5 to 30 weight percent, based on the total dry weight of the composition. 64. The method of any one of embodiments 54-63, wherein the binder is present in the composition in an amount of 5 to 25 weight percent, based on the total dry weight of the composition. 65. The method of any one of embodiments 54-64, wherein the binder is present in the composition in an amount of 10 to 60 weight percent, based on the total dry weight of the composition. 66. The method of any one of embodiments 54-65, wherein the binder is present in the composition in an amount of 10 to 40 weight percent, based on the total dry weight of the composition. 67. The method of any one of embodiments 54-66, wherein the binder is present in the composition in an amount of 10 to 30 weight percent, based on the total dry weight of the composition. 68. The method of any one of embodiments 54-67, wherein the binder is present in the composition in an amount of 10 to 25 weight percent, based on the total dry weight of the composition. 69. The method of any one of embodiments 54-68, wherein the composition comprises 0.01 to 30 parts of additive per 100 parts of binder. 70. The method of any one of embodiments 54-69, wherein the composition comprises 0.01 to 25 parts of additive per 100 parts of binder. 71. The method of any one of embodiments 54-70, wherein the composition comprises 0.05 to 20 parts of additive per 100 parts of binder. 72. The method of any one of embodiments 54-71, wherein the composition comprises 0.05 to 10 parts of additive per 100 parts of binder. 73. The method of any one of embodiments 54-72, wherein the composition comprises 0.1 to 20 parts of additive per 100 parts of binder. 74. The method of any one of embodiments 54-73, wherein the composition comprises 0.1 to 10 parts of additive per 100 parts of binder. 75. The method of any one of embodiments 54-74, wherein the composition comprises 0.1 to 5 parts of additive per 100 parts of binder. 76. The method of any one of embodiments 54-75, wherein the composition comprises 0.1 to 2.5 parts of additive per 100 parts of binder. 77. The method of any one of embodiments 54-76, wherein the composition comprises 0.2 to 5 parts of additive per 100 parts of binder. 78. The method of any one of embodiments 54-77, wherein the composition comprises 0.2 to 2.5 parts of additive per 100 parts of binder. 79. The method of any one of embodiments 54-78, wherein the polymer comprises 0.5 to 10 weight percent acid-functionalized monomer units, based on the total weight of the polymer. 80. The method of any one of embodiments 54-79, wherein the polymer comprises 1 to 5 weight percent acid-functionalized monomer units, based on the total weight of the polymer. 81. The method of any one of embodiments 54 to 80, wherein the colloidal dispersion of polymer has a pH of 7 to 12. 82. The method of any one of embodiments 54-81, wherein the colloidal dispersion of the polymer has a pH of 7-10. 83. The method of any one of embodiments 54-82, wherein the colloidal dispersion of the polymer has a pH of 7-9. 84. The method of any one of embodiments 54 to 83, wherein the colloidal dispersion of the polymer has a pH of 7.5 to 9. 85. The method of any one of embodiments 54-84, wherein the colloidal dispersion of the polymer has a pH of 8-9. 86. The method of any one of embodiments 54-85, wherein the polymer colloidal dispersion comprises at least one of an acrylic latex, a styrene-butadiene resin latex, a vinyl chloride copolymer latex, or a vinylidene chloride copolymer latex. 87. The method of any one of embodiments 54 to 86, wherein the water-soluble polymerization reaction product of the monomer units comprises 20 to 95 weight percent of the monomer units represented by at least one of general formulas A1 or A2, based on the total weight of the additive. 88. The method of any one of embodiments 54 to 87, wherein the water-soluble polymerization reaction product of the monomer units comprises 50 to 80 weight percent of the monomer units represented by at least one of general formulas A1 or A2, based on the total weight of the additive. 89. The method of any one of embodiments 54 to 88, wherein the water-soluble polymerization reaction product of the monomer units comprises 1 to 95 weight percent, based on the total weight of the additive, of vinyl-group-containing monomer units other than monomer units represented by at least one of general formulas A1 or A2. 90. The method of any one of embodiments 54 to 89, wherein the water-soluble polymerization reaction product of the monomer units comprises 5 to 80 weight percent, based on the total weight of the additive, of vinyl-group-containing monomer units other than monomer units represented by at least one of general formulas A1 or A2. 91. The method of any one of embodiments 54 to 90, wherein the water-soluble polymerization reaction product of the monomer units comprises 20 to 50 weight percent, based on the total weight of the additive, of vinyl-group-containing monomer units other than monomer units represented by at least one of general formulas A1 or A2. 92. The method of any one of embodiments 89-91, wherein the vinyl group-containing monomer units different from the monomer units represented by at least one of general formulas A1 or A2 comprise at least one acrylate monomer and / or at least one styrene butadiene monomer. 93. The method of embodiment 92, wherein the at least one acrylate comprises at least one of methyl acrylate, methyl methacrylate, ethyl acrylate, ethyl methacrylate, butyl acrylate, butyl methacrylate, ethylhexyl acrylate, or ethylhexyl methacrylate. 94. At least one acrylate comprises at least one monomer unit represented by the following general formula B:

[0024] [ka] wherein, independently for each molecule of the monomer unit, R 10 is H, CH3, or C2H5, and R 11 is a poly(alkylene oxide) having a number average molecular weight of 88 to 1200 g / mole, the poly(alkylene oxide) being composed of repeating alkylene oxide units, each alkylene oxide unit independently having 2 to 4 carbons; R 12 93. The method of embodiment 92, wherein is H, a C1-C8 alkyl group, or a C1-C8 alkylene group. 95.R 11 95. The method of embodiment 94, wherein is a poly(alkylene oxide) having a number average molecular weight of 132 to 1100 g / mol. 96. The method of embodiment 94 or 95, wherein at least 90 weight percent of the alkylene oxide units of the poly(alkylene oxide) have 2 carbons, based on the total weight of the poly(alkylene oxide). 97.R 12 The method of any one of embodiments 94-96, wherein is H, CH3, or C2H5. 98. The water-soluble polymerization reaction product of monomer units comprises 1 to 95 weight percent of monomer units represented by the following general formula B:

[0025] [ka] wherein, independently for each molecule of the monomer unit, R 10is H, CH3, or C2H5, and R 11 is a poly(alkylene oxide) having a number average molecular weight of 88 to 1200 g / mole, the poly(alkylene oxide) being composed of repeating alkylene oxide units, each alkylene oxide unit independently having 2 to 4 carbons; R 12 The method of any one of embodiments 54 to 88, wherein is H, a C1-C8 alkyl group, or a C1-C8 alkylene group. 99. The water-soluble polymerization reaction product of monomer units comprises 5 to 80 weight percent of monomer units represented by the following general formula B:

[0026] [ka] wherein, independently for each molecule of the monomer unit, R 10 is H, CH3, or C2H5, and R 11 is a poly(alkylene oxide) having a number average molecular weight of 88 to 1200 g / mole, the poly(alkylene oxide) being composed of repeating alkylene oxide units, each alkylene oxide unit independently having 2 to 4 carbons; R 12 The method of any one of embodiments 54 to 88, wherein is H, a C1-C8 alkyl group, or a C1-C8 alkylene group. 100. A water-soluble polymerization reaction product of monomer units comprising 20 to 50 weight percent of monomer units represented by the following general formula B:

[0027] [ka] wherein, independently for each molecule of the monomer unit, R 10 is H, CH3, or C2H5, and R 11 is a poly(alkylene oxide) having a number average molecular weight of 88 to 1200 g / mole, the poly(alkylene oxide) being composed of repeating alkylene oxide units, each alkylene oxide unit independently having 2 to 4 carbons; R 12The method of any one of embodiments 54 to 88, wherein is H, a C1-C8 alkyl group, or a C1-C8 alkylene group. 101.R 11 The method of any one of embodiments 98-100, wherein is a poly(alkylene oxide) of number average molecular weight from 132 to 1100 g / mol. 102. The method of any one of embodiments 98-101, wherein at least 90 weight percent of the alkylene oxide units of the poly(alkylene oxide) have 2 carbons, based on the total weight of the poly(alkylene oxide). 103.R 12 The method of any one of embodiments 98-102, wherein is H, CH3, or C2H5. 104. The method of any one of embodiments 54-103, wherein the fibers comprise at least one of natural fibers, glass fibers, or synthetic fibers. 105. The method of any one of embodiments 54-104, wherein the fibers comprise natural fibers. 106. The method of embodiment 105, wherein the natural fibers comprise cellulose fibers. 107. The method of embodiment 105 or 106, wherein the fibers further comprise at least one additional type of fiber other than natural fibers. 108. The composition of embodiment 107, wherein the at least one additional type of fiber comprises at least one of glass fiber or synthetic fiber.

[0028] Various features and embodiments of the present subject matter are described below by way of non-limiting example.

[0029] It is understood that some of the materials described herein may interact in the final formulation, such that the components of the final formulation may differ from those originally added. The products formed thereby, including the products formed upon using the subject compositions in their intended use, may not be easily described. Nevertheless, all such modifications and reaction products are included within the scope of the subject matter, which includes compositions prepared by mixing the components described herein.

[0030] As used herein, the indefinite article "a" / "an" is intended to mean one or more. As used herein, the phrase "at least one" means one or more of the following terms. Thus, "a" / "an" and "at least one" may be used interchangeably. For example, "at least one of A, B, or C" means that alternative embodiments may include only one of A, B, or C, or any mixture of two or more of A, B, and C.

[0031] As used herein, the transitional term "comprising," which is synonymous with "including," "containing," or "characterized by," is inclusive or open-ended and does not exclude additional, unrecited elements or method steps. However, in each occurrence of "comprising" herein, the term is also intended to encompass, as alternative embodiments, the phrases "consisting essentially of" and "consisting of," where "consisting" excludes any unspecified element or step, and "consisting essentially of" permits the inclusion of additional, unrecited elements or steps that do not materially affect the essential or basic and novel characteristics of the composition or method under consideration.

[0032] A composition comprising fibers, a binder, and an additive, wherein the binder comprises a polymeric colloidal dispersion comprising 0.1 to 25 weight percent, based on the total weight of the polymer, of acid-functionalized monomer units, the polymeric colloidal dispersion having a pH of 5 to 12, and the additive comprises a water-soluble polymerization reaction product of monomer units comprising 5 to 99 weight percent, based on the total weight of the additive, of monomer units represented by at least one of the following general formulas A1 or A2:

[0033] [ka] wherein, independently for each molecule of a monomer unit represented by at least one of general formulas A1 or A2, R 1 is H, CH3, or C2H5, and R 2 is H or a C1-C4 alkyl group, and R 3 is a C1-C6 alkyl group or a C1-C6 alkylene group, and R 4 is H or a C1-C4 alkyl group, and R 5 is H or a C1-C4 alkyl group, and R 6 is H, CH3, or C2H5, and R 7 is a C1-C6 alkyl group or a C1-C6 alkylene group, and R 8 is H or a C1-C4 alkyl group, and R 9 is H or a C1-C4 alkyl group.

[0034] Additives similar to those described herein are disclosed in WO 2020 / 068889 A1, where they are referred to as polyamine additives, and various descriptions and / or embodiments of such polyamine additives may be applied to embodiments of the additives described herein, as would be apparent to one of ordinary skill in the art. The polyamine additives described in WO 2020 / 068889 A1 were not described as having utility in compositions including fibers, although this has been newly discovered as described herein.

[0035] In certain embodiments, R 1 is H or CH. In certain embodiments, R 1 is H or C2H5. In certain embodiments, R 1 is CH or CH. In certain embodiments, R 1 is H. In certain embodiments, R 1 is CH3. In certain embodiments, R 1 is C2H5.

[0036] In certain embodiments, R 2 is H or a C1 to C4 (such as C1 to C3, C1 to C2, C2 to C4, C2 to C3, C3 to C4, C1, C2, C3, or C4) alkyl group.

[0037] In certain embodiments, R 3 is a C1 to C6 (such as C1 to C5, C1 to C4, C1 to C3, C1 to C2, C2 to C6, C2 to C5, C2 to C4, C2 to C3, C3 to C6, C3 to C5, C3 to C4, C4 to C6, C4 to C5, C5 to C6, C1, C2, C3, C4, C5, or C6) alkyl group or a C1 to C6 (such as C1 to C5, C1 to C4, C1 to C3, C1 to C2, C2 to C6, C2 to C5, C2 to C4, C2 to C3, C3 to C6, C3 to C5, C3 to C4, C4 to C6, C4 to C5, C5 to C6, C1, C2, C3, C4, C5, or C6) alkylene group.

[0038] In certain embodiments, R 4 is H or a C1 to C4 (such as C1 to C3, C1 to C2, C2 to C4, C2 to C3, C3 to C4, C1, C2, C3, or C4) alkyl group.

[0039] In certain embodiments, R 5 is H or a C1 to C4 (such as C1 to C3, C1 to C2, C2 to C4, C2 to C3, C3 to C4, C1, C2, C3, or C4) alkyl group.

[0040] In certain embodiments, R 6 is H or CH. In certain embodiments, R6 is H or C2H5. In certain embodiments, R 6 is CH or CH. In certain embodiments, R 6 is H. In certain embodiments, R 6 is CH3. In certain embodiments, R 6 is C2H5.

[0041] In certain embodiments, R 7 is a C1 to C6 (such as C1 to C5, C1 to C4, C1 to C3, C1 to C2, C2 to C6, C2 to C5, C2 to C4, C2 to C3, C3 to C6, C3 to C5, C3 to C4, C4 to C6, C4 to C5, C5 to C6, C1, C2, C3, C4, C5, or C6) alkyl group or a C1 to C6 (such as C1 to C5, C1 to C4, C1 to C3, C1 to C2, C2 to C6, C2 to C5, C2 to C4, C2 to C3, C3 to C6, C3 to C5, C3 to C4, C4 to C6, C4 to C5, C5 to C6, C1, C2, C3, C4, C5, or C6) alkylene group.

[0042] In certain embodiments, R 8 is H or a C1 to C4 (such as C1 to C3, C1 to C2, C2 to C4, C2 to C3, C3 to C4, C1, C2, C3, or C4) alkyl group.

[0043] In certain embodiments, R 9 is H or a C1 to C4 (such as C1 to C3, C1 to C2, C2 to C4, C2 to C3, C3 to C4, C1, C2, C3, or C4) alkyl group.

[0044] In certain embodiments, the binder comprises 5 to 60 (5 to 55, 5 to 50, 5 to 45, 5 to 40, 5 to 35, 5 to 30, 5 to 25, 5 to 20, 5 to 15, 5 to 10, 10 to 60, 10 to 55, 10 to 50, 10 to 45, 10 to 40, 10 to 35, 10 to 30, 10 to 25, 10 to 20, 10 to 15, 15 to 60, 15 to 55, 15 to 50, 15 to 45, 15 to 40, 15 to 35, 15 to 30, 15 to 25, 15 to 20, 20 to 60, 20 to 55, 20 to 50, 20 to and / or 55-60, such as 45, 20-40, 20-35, 20-30, 20-25, 25-60, 25-55, 25-50, 25-45, 25-40, 25-35, 25-30, 30-60, 30-55, 30-50, 30-45, 30-40, 30-35, 35-60, 35-55, 35-50, 35-45, 35-40, 40-60, 40-55, 40-50, 40-45, 45-60, 45-55, 45-50, 50-60, 50-55, or 55-60.

[0045] As used herein, the term "dry weight" means the weight of the composition without water and / or solvent, if present.

[0046] In certain embodiments, the composition contains 0.01 to 30 (0.01 to 25, 0.01 to 20, 0.01 to 15, 0.01 to 10, 0.01 to 5, 0.01 to 4, 0.01 to 3, 0.01 to 2.5, 0.01 to 2, 0.01 to 1.5, 0.01 to 1, 0.01 to 0.5, 0.01 to 0.4, 0.01 to 0.3, 0.01 to 0.2, 0.01 to 0.1, 0.01 to 0.05, 0.05 to 30, 0.05 to 25, 0.05 to 20, 0.05 to 15, 0.05 to 10, 0.05 to 5, 0.05 to 4, 0.05 to 3, 0.05 to 2.5, 0.05 ~2, 0.05~1.5, 0.05~1, 0.05~0.5, 0.05~0.4, 0.05~0.3, 0.05~0.2, 0.05~0.1, 0.1~30, 0.1~25, 0.1~20, 0.1~15, 0.1~10, 0.1~5, 0.1~4, 0.1~3, 0.1~2.5, 0.1~2, 0.1~1.5, 0.1~1, 0.1~0.5, 0.1~0.4, 0.1~0.3, 0.1~0.2, 0.2~30, 0.2~25, 0.2~20, 0.2~15, 0.2~10, 0.2~5, 0.2~4, 0.2~3, 0.2~2.5, 0.2~2, 0.2~1. 5, 0.2~1, 0.2~0.5, 0.2~0.4, 0.2~0.3, 0.3~30, 0.3~25, 0.3~20, 0.3~15, 0.3~10, 0.3~5, 0.3~4, 0.3~3, 0.3~2.5, 0.3~2, 0.3~1.5, 0.3~1, 0.3~0.5, 0.3 ~0.4, 0.4~30, 0.4~25, 0.4~20, 0.4~15, 0.4~10, 0.4~5, 0.4~4, 0.4~3, 0.4~2.5, 0.4~2, 0.4~1.5, 0.4~1, 0.4~0.5, 0.5~30, 0.5~25, 0.5~20, 0.5~15, 0.5 ~10, 0.5~5, 0.5~4, 0.5~3, 0.5~2.5, 0.5~2, 0.5~1.5, 0.5~1, 1~30, 1~25, 1~20, 1~15, 1~10, 1~5, 1~4, 1~3, 1~2.5, 1~2, 1~1.5, 1.5~30, 1.5~25, 1.5~20, 1 .5~15, 1.5~10, 1.5~5, 1.5~4, 1.5~3, 1.5~2.5, 1.5~2, 2~30, 2~25, 2~20, 2~15, 2~10, 2~5, 2~4, 2~3, 2~2.5, 2.5~30, 2.5~25, 2.5~20, 2.5~15, 2.5~10, 2.5-5, 2.5-4, 2.5-3, 3-30, 3-25, 3-20, 3-15, 3-10, 3-5, 3-4, 4-30, 4-25, 4-20, 4-15, 4-10, 4-5, 5-30, 5-25, 5-20, 5-15, 5-10, 10-30, 10-25, 10-20, 10-15, 15-30, 15-25, 15-20, 20-30, 20-25, or 25-30, etc.) parts of additive. In this context, the parts of additive and the parts of binder are considered to be on a "dry" basis, i.e., without water and / or solvent (if present).

[0047] The term "colloidal dispersion," when used in the context of the colloidal dispersions of polymers described herein, means that the polymer is dispersed and stable within the continuous phase of the dispersion, as would be understood by one of ordinary skill in the art.

[0048] In certain embodiments, the polymer is present in an amount of 0.1 to 25 (0.1 to 20, 0.1 to 15, 0.1 to 10, 0.1 to 9, 0.1 to 8, 0.1 to 7, 0.1 to 6, 0.1 to 5, 0.1 to 4, 0.1 to 3, 0.1 to 2, 0.1 to 1, 0.1 to 0.5, 0.5 to 25, 0.5 to 20, 0.5 to 15, 0.5 to 10, based on the total weight of the polymer. , 0.5~9, 0.5~8, 0.5~7, 0.5~6, 0.5~5, 0.5~4, 0.5~3, 0.5~2, 0.5~1, 1~25, 1~20, 1~15, 1~10, 1~9, 1~8, 1~7, 1~6, 1~5, 1~4, 1~3, 1~2, 2~25, 2~20, 2~15, 2~10, 2~9, 2~8, 2~7, 2~6, 2~5, 2-4, 2-3, 3-25, 3-20, 3-15, 3-10, 3-9, 3-8, 3-7, 3-6, 3-5, 3-4, 4-25, 4-20, 4-15, 4-10, 4-9, 4-8, 4-7, 4-6, 4-5, 5-25, 5-20, 5-15, 5-10, 5-9, 5-8, 5-7, 5-6, 6-25, 6-20, 6-15, 6-10 , 6-9, 6-8, 6-7, 7-25, 7-20, 7-15, 7-10, 7-9, 7-8, 8-25, 8-20, 8-15, 8-10, 8-9, 9-25, 9-20, 9-15, 9-10, 10-25, 10-20, 10-15, 15-25, 15-20, or 20-25, etc.) weight percent of acid-functionalized monomer units.

[0049] In certain embodiments, the colloidal dispersion of polymers is 5-12 (5.5-12, 6-12, 6.5-12, 7-12, 7.5-12, 8-12, 8.5-12, 5-11.5, 5.5-11.5, 6-11.5, 6.5-11.5, 7-11.5, 7.5-11.5, 8-11.5, 8.5-11.5, 5-11, 5.5-11, 6-11, 6.5-11, 7-11, 7.5-11, 8-11, 8.5-11, 5-10.5, 5.5-10.5, 6- 10.5, 6.5-10.5, 7-10.5, 7.5-10.5, 8-10.5, 8.5-10.5, 5-10, 5.5-10, 6-10, 6.5-10, 7-10, 7.5-10, 8-10, 8.5-10, 5-9.5, 5.5-9.5, 6-9.5, 6.5-9.5, 7-9.5, 7.5-9.5, 8-9.5, 8.5-9.5, 5-9, 5.5-9, 6-9, 6.5-9, 7-9, 7.5-9, 8-9, or 8.5-9, etc.

[0050] In certain embodiments, the polymer colloidal dispersion comprises at least one of an acrylic latex, a styrene-butadiene resin latex, a vinyl chloride copolymer latex, or a vinylidene chloride copolymer latex.

[0051] In certain embodiments, the water-soluble polymerization reaction product of the monomer units is in an amount of from 5 to 99, 10 to 99, 15 to 99, 20 to 99, 30 to 99, 40 to 99, 50 to 99, 60 to 99, 70 to 99, 5 to 98, 10 to 98, 15 to 98, 20 to 98, 30 to 98, 40 to 98, 50 to 98, 60 to 98, 70~98, 5~97, 10~97, 15~97, 20~97, 30~97, 40~97, 50~97, 60~97, 70~97, 5~96, 10~96, 15~96, 20~96, 30~96, 40~96, 50~96, 60~96, 70~96, 5~95, 10~95, 15~95, 20~95, 30~95, 40 ~95, 50~95, 60~95, 70~95, 5~90, 10~90, 15~90, 20~90, 30~90, 40~90, 50~90, 60~90, 70~90, 5~85, 10~85, 15~85, 20~85, 30~85, 40~85, 50~85, 60~85, 70~85, 5~80, 10~80, 15~ from 80, 20 to 80, 30 to 80, 40 to 80, 50 to 80, 60 to 80, 70 to 80, 5 to 75, 10 to 75, 15 to 75, 20 to 75, 30 to 75, 40 to 75, 50 to 75, 60 to 75, or 70 to 75, etc.) weight percent of monomer units represented by at least one of general formulas A1 or A2.

[0052] In certain embodiments, the water-soluble polymerization reaction product of the monomer units is 1 to 95 (2 to 95, 3 to 95, 4 to 95, 5 to 95, 10 to 95, 15 to 95, 20 to 95, 25 to 95, 1 to 90, 2 to 90, 3 to 90, 4 to 90, 5 to 90, 10 to 90, 15 to 90, 20 to 90, 25 to 90, 1 to 85, 2 to 85, 3-85, 4-85, 5-85, 10-85, 15-85, 20-85, 25-85, 1-80, 2-80, 3-80, 4-80, 5-80, 10-80, 15-80, 20-80, 25-80, 1-70, 2-70, 3-70, 4-70, 5-70, 10-70, 15-70, 20-70, 2 from 5 to 70, from 1 to 60, from 2 to 60, from 3 to 60, from 4 to 60, from 5 to 60, from 10 to 60, from 15 to 60, from 20 to 60, from 25 to 60, from 1 to 50, from 2 to 50, from 3 to 50, from 4 to 50, from 5 to 50, from 10 to 50, from 15 to 50, from 20 to 50, from 25 to 50, from 1 to 40, from 2 to 40, from 3 to 40, from 4 to 40, from 5 to 40, from 10 to 40, from 15 to 40, from 20 to 40, from 25 to 40, from 1 to 30, from 2 to 30, from 3 to 30, from 4 to 30, from 5 to 30, from 10 to 30, from 15 to 30, from 20 to 30, or from 25 to 30, etc.) weight percent of vinyl group-containing monomer units different from monomer units represented by at least one of general formulas A1 or A2.

[0053] In certain embodiments, the vinyl group-containing monomer unit other than the monomer unit represented by at least one of general formulas A1 or A2 comprises at least one acrylate monomer and / or at least one styrene-butadiene monomer. In certain embodiments, the at least one acrylate (i.e., at least one acrylate monomer) comprises at least one of methyl acrylate, methyl methacrylate, ethyl acrylate, ethyl methacrylate, butyl acrylate, butyl methacrylate, ethylhexyl acrylate, or ethylhexyl methacrylate. In certain embodiments, the at least one acrylate (i.e., at least one acrylate monomer) comprises at least one monomer unit represented by the following general formula B:

[0054] [ka] wherein, independently for each molecule of the monomer unit, R 10 is H, CH3, or C2H5, and R 11 is a poly(alkylene oxide), which is composed of repeating alkylene oxide units, R 12 is H, a C1-C8 alkyl group, or a C1-C8 alkylene group. 10 is H or CH. In certain embodiments, R 10 is H or C2H5. In certain embodiments, R 10 is CH or CH. In certain embodiments, R 10 is H. In certain embodiments, R 10 is CH3. In certain embodiments, R 10 is C2H5. In certain embodiments, R 11is a poly(alkylene oxide) with a number average molecular weight of 88 to 1200 (e.g., 132 to 1200, 88 to 1100, or 132 to 1100) g / mol. In certain embodiments, each alkylene oxide unit independently has 2 to 4 (e.g., 2 to 3, 3 to 4, 2, 3, or 4) carbon atoms. In certain embodiments, at least 5 (e.g., at least 10, at least 15, at least 20, at least 25, at least 30, at least 35, at least 40, at least 45, at least 50, at least 55, at least 60, at least 65, at least 70, at least 75, at least 80, at least 85, at least 90, or at least 95) weight percent of the alkylene oxide units of the poly(alkylene oxide), based on the total weight of the poly(alkylene oxide), have 2 carbon atoms. In certain embodiments, the poly(alkylene oxide) has a poly(alkylene oxide) content of 5 to 100 (5 to 95, 5 to 90, 5 to 85, 5 to 80, 5 to 75, 5 to 70, 5 to 65, 5 to 60, 5 to 55, 5 to 50, 5 to 45, 5 to 40, 5 to 35, 5 to 30, 5 to 25, 5 to 20, 5 to 15, 5 to 10, 5 to 15, 5 to 20, 5 to 30, 5 to 40, 5 to 45, 5 to 50, 5 to 55, 5 to 50, 5 to 50, 5 to 65, 5 to 60, 5 to 55, 5 to 50, 5 to 45, 5 to 40, 5 to 35, 5 to 30, 5 to 25, 5 to 20, 5 to 15, 5 to 10, 5 to 15, 5 to 20, 5 to 30, 5 to 40, 5 to 35, 5 to 30, 5 to 25, 5 to 20, 5 to 15, 5 to 10, 5 to 15, 5 to 20, 5 to 15, 5 to 10, 5 to 20, 5 to 25, 5 to 30 ...0, 5 to 15, 5 to 10, 10-100, 10-95, 10-90, 10-85, 10-80, 10-75, 10-70, 10-65, 10-60, 10-55, 10-50, 10-45, 10-40, 10-35, 10-30, 10-25, 10-20, 10-15, 15-100, 15-95, 15-90, 15-85, 15-80, 15-75, 15-70, 15-6 5, 15-60, 15-55, 15-50, 15-45, 15-40, 15-35, 15-30, 15-25, 15-20, 20-100, 20-95, 20-90, 20-85, 20-80, 20-75, 20-70, 20-65, 20-60, 20-55, 20-50, 20-45, 20-40, 20-35, 20-30, 20-25, 25 ~100, 25~95, 25~90, 25~85, 25~80, 25~75, 25~70, 25~65, 25~60, 25~55, 25~50, 25~45, 25~40, 25~35, 25~30, 30~100, 30~95, 30~90, 30~85, 30~80, 30~75, 30~70, 30~65, 30~60, 30~55, 30~50,30-45, 30-40, 30-35, 35-100, 35-95, 35-90, 35-85, 35-80, 35-75, 35-70, 35-65, 35-60, 35-55, 35-50, 35-45, 35-40, 40-100, 40-95, 40-90, 40-85, 40-80, 40-75, 40-70, 40-65, 40-6 0, 40-55, 40-50, 40-45, 45-100, 45-95, 45-90, 45-85, 45-80, 45-75, 45-70, 45-65, 45-60, 45-55, 45-50, 50-100, 50-95, 50-90, 50-85, 50-80, 50-75, 50-70, 50-65, 50-60, 50-55, 55 ~100, 55~95, 55~90, 55~85, 55~80, 55~75, 55~70, 55~65, 55~60, 60~100, 60~95, 60~90, 60~85, 60~80, 60~75, 60~70, 60~65, 65~100, 65~95, 65~90, 65~85, 65~80, 65~75, 65~70, 70~10 80-95, 80-90, 80-85, 80-80, 80-75, 80-95, 80-90, 80-85, 85-100, 80-95, 80-90, 80-85, 85-100, 85-95, 85-90, 90-100, 90-85, or 95-100, etc.) weight percent of the R, 12is H, C1~C8(C1~C7, C1~C6, C1~C5, C1~C4, C1~C3, C1~C2, C2~C8, C2~C7, C2~C6, C2~C5, C2~C4, C2~C3, C3~C8, C3~C7, C3~C6, C3~C5 , C3~C4, C4~C8, C4~C7, C4~C6, C4~C5, C5~C8, C5~C7, C5~C6, C6~C8, C6~C7, C7~C8, C1, C2, C3, C4, C5, C6, C7, or C8), or is a C1-C8 (such as C1-C7, C1-C6, C1-C5, C1-C4, C1-C3, C1-C2, C2-C8, C2-C7, C2-C6, C2-C5, C2-C4, C2-C3, C3-C8, C3-C7, C3-C6, C3-C5, C3-C4, C4-C8, C4-C7, C4-C6, C4-C5, C5-C8, C5-C7, C5-C6, C6-C8, C6-C7, C7-C8, C1, C2, C3, C4, C5, C6, C7, or C8) alkylene group. 12 is H, CH3, or C2H5.

[0055] In certain embodiments, the water-soluble polymerization reaction product of the monomer units is from 1 to 95 (2 to 95, 3 to 95, 4 to 95, 5 to 95, 10 to 95, 15 to 95, 20 to 95, 25 to 95, 1 to 90, 2 to 90, 3 to 90, 4 to 90, 5 to 90, 10 to 90, 15 to 90, 20 to 90, 25 to 90, 1 to 85, 2 to 85, 3 to 85, 4 to 85, 5 to 85, 10 to 85, 15 to 85, 20 to 85, 25 to 85, 1 to 80, 2 to 80, 3 to 80, 4 to 80, 5 to 80, 10 to 80, 15 to 80, 20 to 80, 25 to 80, 1 to 70, 2 to 70, 3 to 70, 4 to 70, 5 to 70, 10 to 7 from 0 to 15, from 15 to 70, from 20 to 70, from 25 to 70, from 1 to 60, from 2 to 60, from 3 to 60, from 4 to 60, from 5 to 60, from 10 to 60, from 15 to 60, from 20 to 60, from 25 to 60, from 1 to 50, from 2 to 50, from 3 to 50, from 4 to 50, from 5 to 50, from 10 to 50, from 15 to 50, from 20 to 50, from 25 to 50, from 1 to 40, from 2 to 40, from 3 to 40, from 4 to 40, from 5 to 40, from 10 to 40, from 15 to 40, from 20 to 40, from 25 to 40, from 1 to 30, from 2 to 30, from 3 to 30, from 4 to 30, from 5 to 30, from 10 to 30, from 15 to 30, from 20 to 30, or from 25 to 30, etc.) weight percent of monomer units represented by the following general formula B:

[0056] [ka] wherein, independently for each molecule of the monomer unit, R 10 is H, CH3, or C2H5, and R 11 is a poly(alkylene oxide), which is composed of repeating alkylene oxide units, R 12 is H, a C1-C8 alkyl group, or a C1-C8 alkylene group. 10 is H or CH. In certain embodiments, R 10 is H or C2H5. In certain embodiments, R 10 is CH or CH. In certain embodiments, R 10 is H. In certain embodiments, R 10 is CH3. In certain embodiments, R 10 is C2H5. In certain embodiments, R11is a poly(alkylene oxide) with a number average molecular weight of 88 to 1200 (e.g., 132 to 1200, 88 to 1100, or 132 to 1100) g / mol. In certain embodiments, each alkylene oxide unit independently has 2 to 4 (e.g., 2 to 3, 3 to 4, 2, 3, or 4) carbon atoms. In certain embodiments, at least 5 (e.g., at least 10, at least 15, at least 20, at least 25, at least 30, at least 35, at least 40, at least 45, at least 50, at least 55, at least 60, at least 65, at least 70, at least 75, at least 80, at least 85, at least 90, or at least 95) weight percent of the alkylene oxide units of the poly(alkylene oxide), based on the total weight of the poly(alkylene oxide), have 2 carbon atoms. In certain embodiments, the poly(alkylene oxide) has a poly(alkylene oxide) content of 5 to 100 (5 to 95, 5 to 90, 5 to 85, 5 to 80, 5 to 75, 5 to 70, 5 to 65, 5 to 60, 5 to 55, 5 to 50, 5 to 45, 5 to 40, 5 to 35, 5 to 30, 5 to 25, 5 to 20, 5 to 15, 5 to 10, 5 to 15, 5 to 20, 5 to 30, 5 to 40, 5 to 45, 5 to 50, 5 to 55, 5 to 50, 5 to 50, 5 to 65, 5 to 60, 5 to 55, 5 to 50, 5 to 45, 5 to 40, 5 to 35, 5 to 30, 5 to 25, 5 to 20, 5 to 15, 5 to 10, 5 to 15, 5 to 20, 5 to 30, 5 to 40, 5 to 35, 5 to 30, 5 to 25, 5 to 20, 5 to 15, 5 to 10, 5 to 15, 5 to 20, 5 to 15, 5 to 10, 5 to 20, 5 to 25, 5 to 30 ...0, 5 to 15, 5 to 10, 10-100, 10-95, 10-90, 10-85, 10-80, 10-75, 10-70, 10-65, 10-60, 10-55, 10-50, 10-45, 10-40, 10-35, 10-30, 10-25, 10-20, 10-15, 15-100, 15-95, 15-90, 15-85, 15-80, 15-75, 15-70, 15-6 5, 15-60, 15-55, 15-50, 15-45, 15-40, 15-35, 15-30, 15-25, 15-20, 20-100, 20-95, 20-90, 20-85, 20-80, 20-75, 20-70, 20-65, 20-60, 20-55, 20-50, 20-45, 20-40, 20-35, 20-30, 20-25, 25 ~100, 25~95, 25~90, 25~85, 25~80, 25~75, 25~70, 25~65, 25~60, 25~55, 25~50, 25~45, 25~40, 25~35, 25~30, 30~100, 30~95, 30~90, 30~85, 30~80, 30~75, 30~70, 30~65, 30~60, 30~55, 30~50,30-45, 30-40, 30-35, 35-100, 35-95, 35-90, 35-85, 35-80, 35-75, 35-70, 35-65, 35-60, 35-55, 35-50, 35-45, 35-40, 40-100, 40-95, 40-90, 40-85, 40-80, 40-75, 40-70, 40-65, 40-6 0, 40-55, 40-50, 40-45, 45-100, 45-95, 45-90, 45-85, 45-80, 45-75, 45-70, 45-65, 45-60, 45-55, 45-50, 50-100, 50-95, 50-90, 50-85, 50-80, 50-75, 50-70, 50-65, 50-60, 50-55, 55- 100, 55~95, 55~90, 55~85, 55~80, 55~75, 55~70, 55~65, 55~60, 60~100, 60~95, 60~90, 60~85, 60~80, 60~75, 60~70, 60~65, 65~100, 65~95, 65~90, 65~85, 65~80, 65~75, 65~70, 70~100, 70-95, 70-90, 70-85, 70-80, 70-75, 75-100, 75-95, 75-90, 75-85, 75-80, 80-100, 80-95, 80-90, 80-85, 85-100, 85-95, 85-90, 90-100, 90-85, or 95-100, etc., weight percent of R, 12is H, C1~C8(C1~C7, C1~C6, C1~C5, C1~C4, C1~C3, C1~C2, C2~C8, C2~C7, C2~C6, C2~C5, C2~C4, C2~C3, C3~C8, C3~C7, C3~C6, C3~C5 , C3~C4, C4~C8, C4~C7, C4~C6, C4~C5, C5~C8, C5~C7, C5~C6, C6~C8, C6~C7, C7~C8, C1, C2, C3, C4, C5, C6, C7, or C8), or is a C1-C8 (such as C1-C7, C1-C6, C1-C5, C1-C4, C1-C3, C1-C2, C2-C8, C2-C7, C2-C6, C2-C5, C2-C4, C2-C3, C3-C8, C3-C7, C3-C6, C3-C5, C3-C4, C4-C8, C4-C7, C4-C6, C4-C5, C5-C8, C5-C7, C5-C6, C6-C8, C6-C7, C7-C8, C1, C2, C3, C4, C5, C6, C7, or C8) alkylene group. 12 is H, CH3, or C2H5.

[0057] In certain embodiments, the fibers comprise at least one of natural fibers, glass fibers, or synthetic fibers. In certain embodiments, the fibers comprise natural fibers. In certain embodiments, the natural fibers comprise cellulose fibers. In certain embodiments, the fibers further comprise at least one additional type of fiber other than natural fibers. In certain embodiments, the at least one additional type of fiber comprises at least one of glass fibers or synthetic fibers. There are many types of fibers known to be used in the applications described herein, and it is expected that the subject matter disclosed herein will have broad applicability to various types of fibers that may be used in the compositions described herein.

[0058] Also provided is a fibrous substrate comprising the composition described herein.

[0059] Additionally, various methods of making and / or using the above-described compositions are provided, as follows: In addition to the methods described below, similar uses of the compositions described herein are also contemplated and should be considered disclosed herein, as would be understood by one of skill in the art based on the method descriptions provided below.

[0060] In certain embodiments, there is provided a method of making the above-described composition, comprising combining, in any order, a fiber, a binder, and an additive, the features of which are described in detail above.

[0061] In certain embodiments, a method of making a fibrous substrate is provided, comprising forming fibers and a binder into a fibrous substrate, and subsequently adding an additive to the fibrous substrate. The fibers, binders, and additives used to make the fibrous substrate, and the composition formed by combining them, are described in detail above.

[0062] In certain embodiments, the fibers and binder may be combined together, followed by the addition of additives at any time during the preparation of the composition. For example, the fibers and binder may be combined in a slurry and used to construct a fibrous web comprising the fibers and binder, followed by the addition of additives prior to drying / curing of the fibrous web; the additives may be added at any time during further processing of the fibrous web, as long as the binder is added prior to drying / curing in the fibrous web.

[0063] In certain embodiments, the fibers may be formed into a slurry and constructed into a fibrous web, followed by the addition of binders and additives. In these embodiments, the binders and additives may be added to the fibrous web separately or together.

[0064] In certain embodiments, the fibers, binder, and additives can be combined together to form a slurry, which can then be used to construct a fibrous web.

[0065] Fibre webs, nonwoven fibrous materials, and / or papers are made according to a variety of methods known to those skilled in the art; therefore, it will be clear to one skilled in the art after reading this disclosure at what point during a particular manufacturing process it may be most efficient to add an additive, and any testing required to make such a determination will be relatively straightforward to accomplish according to known procedures.

[0066] In certain embodiments, a method for improving at least one physical property of a fibrous substrate, the fibrous substrate comprising fibers and a binder, is provided, the method comprising adding an additive to the fibrous substrate. The fibers, binders, and additives used to make the fibrous substrate, and the composition formed by combining them, are described in detail above.

[0067] In certain embodiments, a method of making a fibrous substrate is provided, the fibrous substrate comprising fibers and a binder, the method comprising adding an additive to the fibrous substrate, the additive reducing the amount of binder required in the fibrous substrate to substantially maintain the physical properties of the fibrous substrate. The fibers, binders, and additives used to make the fibrous substrate, and the composition formed by combining them, are described in detail above. "Substantially maintaining the physical properties of the fibrous substrate" means that the physical properties of the fibrous substrate are such that the fibrous substrate still meets the requirements of the particular use to which the fibrous substrate may be put.

[0068] As mentioned above, certain fiber compositions may suffer from binder migration, which can adversely affect the physical properties of the fiber composition. It has been discovered that the additives described herein can reduce or prevent binder migration in at least some fiber compositions, thereby enabling reduced binder requirements and / or improved physical properties in the fiber composition. It is uncertain which physical properties of a fiber composition may affect binder migration in a fiber composition because this has not been observed in all sheet-like fiber compositions. However, despite these uncertainties, it is possible to directly observe whether binder migration occurs in a particular sheet-like fiber composition, and such methods are known in the art. For example, the following procedure can be used to visually observe binder migration in some sheet-like fiber compositions (referred to as "fabric" in the remainder of this paragraph for ease of understanding). (1) Prepare a dye bath of 1% DuPont Fiber ID Stain #4 and 99% water in a volume sufficient to provide more than 20 parts solution for each part of fabric being tested; (2) bring the dye bath to a boil; (3) place the fabric in the boiling dye bath and allow to sit for 5-10 minutes; (4) remove the fabric from the dye bath, rinse thoroughly with water, and dry; (5) evaluate under a high-power microscope—binder migration will be indicated by a difference in dyeing through the thickness of the fabric. Note that this method may not work for certain fabrics, such as fabrics with specific fiber compositions that attract dye and / or fabrics that are too thin to visually observe binder migration through the thickness of the fabric. It would be readily apparent to one skilled in the art whether this method will successfully identify binder migration in a particular fabric after this procedure has been performed on the fabric. [Example]

[0069] The presently disclosed subject matter may be better understood with reference to the following examples, which are provided merely to further illustrate the presently disclosed subject matter and should not be construed as limiting the subject matter in any manner.

[0070] Preparation of Examples Example 1: A polymer latex was prepared via an emulsion polymerization process carried out in a 5-liter, four-necked, spherical reactor equipped with a half-moon blade agitator, temperature probe, condenser, and feed inlet. The monomers were separately charged to a premixed emulsion bath and gradually metered into the reactor over a 2-hour period to achieve a constant and controlled reaction rate. The reaction was run as a semi-batch in-situ seed process, in which 5 wt. % of the pre-emulsified monomer mixture was batch polymerized to achieve consistent latex particle size. The seed formation temperature was 80°C and the polymerization temperature was 83.5°C at atmospheric pressure. The polymerization was carried out in a hood with the reactor submerged in a temperature-controlled water bath. A slight nitrogen purge was applied throughout the reaction. The pre-emulsion contents were prepared by mixing 475 g of water (when used in the examples, the term "water" refers to demineralized water) with 30.88 g of a 45% aqueous solution of Calfax® DB45 surfactant manufactured by Pilot Chemical, followed by the addition of the following monomers under stirring: 883 g of styrene, 931 g of n-butyl acrylate, 57 g of a 50% aqueous solution of acrylamide, and 57 g of methacrylic acid. The reactor contents were prepared by mixing 1045 g of water with 4.75 g of a 45% aqueous solution of Calfax® DB45. The reactor contents were heated to 80°C, and an in-situ seed consisting of 5 wt% of the pre-emulsion (130.88 g) was quickly added to the reactor. After the temperature stabilized, a solution consisting of 1.9 g of sodium persulfate and 38 g of water was added to the reaction mass. The seeding reaction was allowed to proceed for 15 minutes, after which the temperature was set to 83.5°C and a pre-emulsion feed to the reaction vessel was initiated and continued at a constant rate for 120 minutes. Thirty minutes after the start of the pre-emulsion feed, an initiator solution consisting of 2.57 g of sodium persulfate and 133 g of water was metered into the reaction vessel and continued for 120 minutes. After the metered initiator feed was completed, the temperature was maintained at 83.5°C for an additional 60 minutes, after which the reaction vessel was cooled to 65°C and a redox initiator consisting of 28.5 g of water, 4.07 g of a 70% aqueous solution of t-butyl hydroperoxide, and 1.9 g of a 30% aqueous solution of sodium dodecyl sulfate was added, followed by an aqueous solution of 19 g of water and 1.43 g of erythorbic acid.Another identical redox initiator was added to the reaction vessel 30 minutes after the first redox initiator. Sixty minutes after the final redox initiator addition, the reaction vessel was cooled to 40°C and the reaction product was filtered through a 150 micron nylon mesh filter.

[0071] Example 2: An additive was prepared via a free-radical solution copolymerization process as follows. The monomer composition was 70 DMAPMA:30 MPEG350MA. Aqueous polymers were prepared as follows: A monomer premix was made by mixing 120g water, 84g dimethylaminopropyl methacrylamide (DMAPMA), and 36g polyethylene glycol methacrylate (MPEG 350MA). Initiator A was made by mixing 1.37g 70% t-butyl hydrogen peroxide (TBHP) in 4.8g water. Reducing agent A was prepared by dissolving 0.96g erythorbic acid in 24g water. A 1-liter reaction vessel was charged with 336 g of water, 1.68 g of 0.15% iron(II) sulfate heptahydrate, and 0.48 g of 1% tetrasodium ethylenediaminetetraacetic acid (Na4-ETDA), and then heated to 60°C under a nitrogen blanket with adequate agitation. At 60°C, Initiator A was added to the reaction vessel. After approximately 2 minutes, the monomer premix was dispensed into the reaction vessel over 120 minutes, and Reducing Agent A was dispensed into the reaction vessel over 150 minutes. After the Reducing Agent A feed was completed, the reaction vessel temperature was maintained at 60°C for 60 minutes. The reaction vessel was then cooled to 50°C. A solution of 0.43 g of 70% TBHP and 0.04 g of 30% sodium lauryl sulfate (SLS) in 6 g of water was added to the reaction vessel. After 5 minutes, a solution of 0.25 g of erythorbic acid in 6 g of water was added to the reaction vessel. The reaction vessel was maintained at 50° C. After 30 minutes, a solution of 0.43 g of 70% TBHP and 0.04 g of 30% sodium lauryl sulfate (SLS) in 6 g of water was added to the reaction vessel. After 5 minutes, a solution of 0.25 g of erythorbic acid in 6 g of water was added to the reaction vessel. The reaction vessel was maintained at 50° C. for approximately 30 minutes. The reaction vessel was then cooled to room temperature. The polymer had a pH of 10.5, a solids content of 22.4%, and a viscosity of 120 cps.

[0072] Example 3: A blend was prepared by first adjusting the polymer latex of Example 1 to a pH >9 with a 28% aqueous solution of ammonia, and then mixing the resulting latex with the additive of Example 2 in a weight ratio of 99.5 to 0.5.

[0073] Example 4: A blend was prepared by first adjusting the polymer latex of Example 1 to a pH >9 with a 28% aqueous solution of ammonia, and then mixing the resulting latex with the additive of Example 2 in a 99 to 1 weight ratio.

[0074] Example 5: A blend was prepared by first adjusting the polymer latex of Example 1 to a pH >9 with a 95% aqueous solution of 2-amino-2-methyl-1-propanol (AMP-95), and then mixing the resulting latex with the additive of Example 2 in a weight ratio of 99.5 to 0.5.

[0075] Example 6: A blend was prepared by first neutralizing the polymer latex of Example 1 with dimethylethanolamine (DMEA) to a pH >9, and then mixing the resulting latex with the additive of Example 2 in a 99.5 to 0.5 weight ratio.

[0076] Example 7: A blend was prepared by first neutralizing the polymer latex of Example 1 with a 20% aqueous solution of sodium hydroxide to a pH >9, and then mixing the resulting latex with the additive of Example 2 in a weight ratio of 99.5 to 0.5.

[0077] Example 8: A polymer latex was prepared and characterized as described in Example 1, except that 57 g of a 50% aqueous solution of acrylamide was replaced with 57 g of a 50% aqueous solution of N-methylolacrylamide.

[0078] Example 9: A blend is prepared by first neutralizing the polymer latex of Example 8 with a 28% aqueous solution of ammonia to a pH >9, and then mixing the resulting latex with the additive of Example 2 in a weight ratio of 99.5 to 0.5.

[0079] Example 10: An additive was prepared via a free-radical solution copolymerization process as follows. The monomer composition was 94 DMAPMA:6 MMA. An aqueous polymer was prepared as follows: A monomer premix was made by mixing 400 g of water, 376 g of dimethylaminopropyl methacrylamide (DMAPMA), and 24 g of methyl methacrylate (MMA). Initiator A was made by mixing 4.57 g of 70% t-butyl hydrogen peroxide (TBHP) in 16 g of water. Reducing agent A was prepared by dissolving 3.2 g of erythorbic acid in 80 g of water. A 3-liter reaction vessel was charged with 720 g of water, 5.6 g of 0.15% iron(II) sulfate heptahydrate, and 1.6 g of 1% tetrasodium ethylenediaminetetraacetate (Na4-ETDA), and then heated to 60°C under a nitrogen blanket with adequate stirring. At 60°C, initiator A was added to the reaction vessel. After approximately 2 minutes, the monomer premix was dispensed into the reaction vessel over 120 minutes, and reducing agent A was dispensed into the reaction vessel over 150 minutes. After the reducing agent A feed was completed, the temperature of the reaction vessel was maintained at 60°C for 60 minutes. The reaction vessel was then cooled to 50°C. A solution of 1.43g of 70% TBHP and 0.13g of 30% sodium lauryl sulfate (SLS) in 20g of water was added to the reaction vessel. After 5 minutes, a solution of 0.84g of erythorbic acid in 20g of water was added to the reaction vessel. The reaction vessel was maintained at 50°C. After 30 minutes, a solution of 1.43g of 70% TBHP and 0.13g of 30% sodium lauryl sulfate (SLS) in 20g of water was added to the reaction vessel. After 5 minutes, a solution of 0.84 g of erythorbic acid in 20 g of water was added to the reaction vessel. The reaction vessel was maintained at 50° C. for approximately 30 minutes. The reaction vessel was then cooled to room temperature. The polymer had a pH of 10.7, a solids content of 22.6%, and a viscosity of 270 cps.

[0080] Example 11: A blend is prepared by first neutralizing the polymer latex of Example 1 with a 28% aqueous solution of ammonia to a pH >9, and then mixing the resulting latex with the additive of Example 10 in a weight ratio of 99.5 to 0.5.

[0081] Paper Impregnation and Evaluation Paper properties were evaluated using Whatman® 3MM CHR chromatography paper substrate, Whatman® GF / A borosilicate glass substrate, or spunbond polyester substrate. Whatman® 3MM CHR is a 100% pure cellulose sheet without binder. Whatman® GF / A is a 100% borosilicate glass sheet without binder. The substrate was impregnated using a dip-and-squeeze method, placing the substrate in a pan containing diluted impregnating agent. The substrate was removed from the bath and passed through nip rollers to squeeze out excess material. The sheet was dried at 99°C for 1 minute on a steam can. The dry polymer content was controlled at 20% based on the weight of the substrate. Prior to testing, the paper was conditioned at 21°C and 50% relative humidity. Paper properties were tested as dry and after aging at 149°C for 5 minutes. Glass sheet samples were tested after aging at 191°C for 2 minutes. Tensile properties were tested according to Technical Association of the Pulp and Paper Industry (TAPPI) standard T494 - Tensile Properties of Paper and Paperboard. One-inch wide samples were cut in the cross-machine direction and pulled at 12 inches per minute using a 2-inch gauge length. Wet tensile was evaluated after immersion of the samples in a 1% Triton® X-100 solution for 2 minutes. An average of four samples was recorded for each polymer.

[0082] Burst strength was measured using a Mullen burst tester. Dry and wet burst strength was tested according to TAPPI standard T403 - Burst Strength of Paper. Wet burst was evaluated after immersion of the samples in a 1% Triton® X-100 solution for 2 minutes. An average of eight samples was used, four wire-side up and four felt-side up.

[0083] Stiffness was tested according to TAPPI standard T543 - Resistance to Bending of Paper (Gurley-type tester). Samples were tested dry and after immersion in a 1% Triton® X-100 solution for 2 minutes. Samples were tested cross-grain. 2-inch by 2.5-inch samples were tested with a 25-gram weight 2 inches from the pivot point. An average of eight samples was recorded for each polymer.

[0084] result The above example materials were evaluated using Whatman® 3MM CHR chromatography paper substrate (using binder content (weight percent based on total weight of composition), cure temperature (°F), and time (minutes) as shown in Table 1A), and the results of the specific evaluations (described above) are shown in Table 1B.

[0085] [Table 1A]

[0086] [Table 1B]

[0087] The above example materials were evaluated using Whatman® 3MM CHR chromatography paper substrate (using binder content (weight percent based on total weight of composition), cure temperature (°F), and time (minutes) as shown in Table 2A), and the results of the specific evaluations (described above) are shown in Table 2B.

[0088] [Table 2A]

[0089] [Table 2B]

[0090] Whatman® GF / A borosilicate glass substrates were used to evaluate the above example materials (using the binder content (weight percent based on the total weight of the composition), cure temperature (°F), and time (minutes) as shown in Table 3).

[0091] [Table 3]

[0092] The above example materials were evaluated using a spunbond polyester substrate (using the binder content (weight percent based on the total weight of the composition), cure temperature (°F), and time (minutes) as shown in Table 4).

[0093] [Table 4]

[0094] Except in the examples, or where otherwise expressly indicated, or where required by context, all numerical quantities herein specifying amounts of ingredients, reaction conditions, molecular weights, numbers of carbon atoms, and the like, should be understood to be modified by the word "about." As used herein, the term "about" means that the value of a given quantity is within ±20% of the stated value. In other embodiments, the value is within ±15% of the stated value. In other embodiments, the value is within ±10% of the stated value. In other embodiments, the value is within ±5% of the stated value. In other embodiments, the value is within ±2.5% of the stated value. In other embodiments, the value is within ±1% of the stated value. In other embodiments, the value is within a range of the explicitly stated value that would be understood by one of ordinary skill in the art, based on the disclosure provided herein, to perform substantially similarly to a composition containing the literal amounts recited herein.

[0095] It should be understood that the upper and lower amount, range, and ratio limits set forth herein are independently combinable, and that any amount within a disclosed range is intended to provide, in alternative embodiments, the minimum or maximum value of a narrower range (provided, of course, that the minimum amount of a range must be lower than the maximum amount of that same range). Similarly, the ranges and amounts for each element of the subject matter disclosed herein can be used together with ranges or amounts for any of the other elements.

[0096] While certain representative embodiments and details have been shown for the purpose of illustrating the subject matter disclosed herein, it will be apparent to those skilled in the art that various changes and modifications can be made without departing from the scope of the subject matter. In this regard, the scope of the present invention should be limited only by the claims that follow.

Claims

1. A composition comprising fibers, a binder, and an additive, the binder comprises a polymeric colloidal dispersion comprising 0.1 to 25 weight percent acid-functionalized monomer units, based on the total weight of the polymer, the polymeric colloidal dispersion having a pH of 5 to 12; the additive comprises a water-soluble polymerization reaction product of monomeric units comprising from 5 to 99 weight percent, based on the total weight of the additive, of monomeric units represented by at least one of the following general formulas A1 or A2: 【Chemical 22】 wherein, independently for each molecule of said monomer unit represented by at least one of said general formulas A1 or A2, R １ But H, CH ３ , or C ２ H ５ and R ２ is H or C １ ~C ４ is an alkyl group, and R ３ But C １ ~C ６ Alkyl group or C １ ~C ６ is an alkylene group, and R ４ is H or C １ ~C ４ is an alkyl group, and R ５ is H or C １ ~C ４ is an alkyl group, and R ６ But H, CH ３ , or C ２ H ５ and R ７ But C １ ~C ６ Alkyl group or C １ ~C ６ is an alkylene group, and R ８ is H or C １ ~C ４ is an alkyl group, and R ９ is H or C １ ~C ４ The composition, wherein the alkyl group.

2. Independently for each molecule of the monomer unit represented by at least one of the general formulas A1 or A2, R １ is H or CH ３ and R ２ is H or CH ３ and R ４ is H or CH ３ and R ５ is H or CH ３ and R ６ is H or CH ３ and R ８ is H or CH ３ and R ９ is H or CH ３ 2. The composition of claim 1, wherein:

3. Independently for each molecule of the monomer unit represented by at least one of the general formulas A1 or A2, R ３ But C １ ~C ４ Alkyl group or C １ ~C ４ is an alkylene group, and R ７ But C １ ~C ４ Alkyl group or C １ ~C ４ The composition according to claim 1 or 2, wherein the alkylene group is an alkylene group.

4. The composition of any one of claims 1 to 3, wherein the binder is present in the composition in an amount of 5 to 60 weight percent, based on the total dry weight of the composition.

5. The composition of any one of claims 1 to 4, wherein the composition comprises 0.01 to 30 parts of the additive per 100 parts of the binder.

6. The composition of any one of claims 1 to 5, wherein the polymer comprises from 0.5 to 10 weight percent acid-functionalized monomer units, based on the total weight of the polymer.

7. The composition of any one of claims 1 to 6, wherein the polymer colloidal dispersion has a pH of from 7 to 12.

8. 8. The composition of any one of claims 1 to 7, wherein the polymer colloidal dispersion comprises at least one of an acrylic latex, a styrene-butadiene resin latex, a vinyl chloride copolymer latex, or a vinylidene chloride copolymer latex.

9. 9. The composition of any one of claims 1 to 8, wherein the water-soluble polymerization reaction product of the monomer units comprises 20 to 95 weight percent of the monomer units represented by at least one of the general formulas A1 or A2, based on the total weight of the additive.

10. 10. The composition of claim 1, wherein the water-soluble polymerization reaction product of the monomer units comprises 1 to 95 weight percent, based on the total weight of the additive, of vinyl-group-containing monomer units different from the monomer units represented by at least one of the general formulas A1 or A2.

11. 11. The composition of claim 10, wherein the vinyl group-containing monomer units other than the monomer units represented by at least one of the general formulas A1 or A2 comprise at least one acrylate monomer and / or at least one styrene butadiene monomer.

12. 12. The composition of claim 11, wherein the at least one acrylate comprises at least one of methyl acrylate, methyl methacrylate, ethyl acrylate, ethyl methacrylate, butyl acrylate, butyl methacrylate, ethylhexyl acrylate, or ethylhexyl methacrylate.

13. The at least one acrylate comprises at least one monomer unit represented by the following general formula B: 【Chemical 23】 wherein, independently for each molecule of said monomer unit, R １０ But H, CH ３ , or C ２ H ５ and R １１ is a poly(alkylene oxide) having a number average molecular weight of 88 to 1200 g / mole, said poly(alkylene oxide) being composed of repeating alkylene oxide units, each alkylene oxide unit independently having 2 to 4 carbons; R １２ But H, C １ ~C ８ Alkyl group, or C １ ~C ８ The composition of claim 11 wherein the alkylene group is an alkylene group.

14. R １１ The composition of claim 13, wherein is a poly(alkylene oxide) having a number average molecular weight of 132 to 1100 g / mole.

15. 15. The composition of claim 13 or 14, wherein at least 90 weight percent of the alkylene oxide units of the poly(alkylene oxide) have 2 carbons, based on the total weight of the poly(alkylene oxide).

16. R １２ But H, CH ３ , or C ２ H ５ The composition according to any one of claims 13 to 15,

17. the water-soluble polymerization reaction product of said monomer units comprising from 1 to 95 weight percent of monomer units represented by the following general formula B: 【Chemistry 24】 wherein, independently for each molecule of said monomer unit, R １０ But H, CH ３ , or C ２ H ５ and R １１ is a poly(alkylene oxide) having a number average molecular weight of 88 to 1200 g / mole, said poly(alkylene oxide) being composed of repeating alkylene oxide units, each alkylene oxide unit independently having 2 to 4 carbons; R １２ But H, C １ ~C ８ Alkyl group, or C １ ~C ８ The composition according to any one of claims 1 to 9, wherein the alkylene group is an alkylene group.

18. R １１ 18. The composition of claim 17, wherein is a poly(alkylene oxide) having a number average molecular weight of 132 to 1100 g / mole.

19. 18. The composition of claim 16 or 17, wherein at least 90 weight percent of the alkylene oxide units of the poly(alkylene oxide) have 2 carbons, based on the total weight of the poly(alkylene oxide).

20. R １２ But H, CH ３ , or C ２ H ５ The composition according to any one of claims 17 to 19, wherein

21. The composition of any one of claims 1 to 20, wherein the fibers comprise at least one of natural fibers, glass fibers, or synthetic fibers.

22. The composition of any one of claims 1 to 21, wherein the fibers comprise natural fibers.

23. 23. The composition of claim 22, wherein the natural fibers comprise cellulosic fibers.

24. 24. The composition of claim 22 or 23, wherein the fibers further comprise at least one additional type of fiber other than the natural fibers.

25. 25. The composition of claim 24, wherein the at least one additional type of fiber comprises at least one of glass fiber or synthetic fiber.

26. A fibrous substrate comprising the composition of any one of claims 1 to 25 formed into a substrate.

27. 26. A method of making the composition of any one of claims 1 to 25, comprising combining the fibers, the binder, and the additive in any order.

28. 27. A method of making the fibrous substrate of claim 26, comprising forming the fibers and the binder into the fibrous substrate and subsequently adding the additive to the fibrous substrate.

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