Additive for binder and / or fiber compositions

Abstract

There is provided a composition comprising fibers, a binder and an additive wherein: the binder comprises a colloidal dispersion of a polymer comprising from 0.1% to 25% by weight, based on the total weight of the polymer, of acid-functionalized monomer units wherein the colloidal dispersion of the polymer has a pH of from 5 to 12; and the additive comprises a water-soluble polymerization reaction product of monomeric units, the water-soluble polymerization reaction product of monomeric units comprising from 5 wt% to 99 wt% of a monomeric unit represented by at least one of the general formulae A1 or A2 as described herein. Related methods and / or uses are also provided.

Description

[0001] The disclosed technology relates to compositions comprising fibers, a binder, and an additive, wherein the additive can improve certain properties of the composition and / or reduce the amount of binder required in the composition.

[0002] Compositions comprising fiber and binding agent can be used in many applications, including for the preparation of fiber substrates, nonwoven mats and / or paper materials. In some compositions in which the composition is formed as sheet materials, it has been found that under certain conditions and / or in some compositions, the binding agent may migrate to the surface during the production of the composition. For example, when the preparation is intended to be used as the paper material of the filter medium, the binding agent may migrate to the surface of the paper material, and therefore be unevenly distributed on the whole thickness of the paper material. This may cause the undesirable physical properties of the paper material, which may need to add more binding agents, or other changes need to be made to the composition and / or structure to ensure that the paper material meets some required physical properties.

[0003] The disclosed technology solves this problem (and potentially other problems) by at least partially preventing binder migration in the composition during manufacturing via the addition of additives as described herein.

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

[0005]

[0006] Wherein independently, for each molecule of the monomer unit represented by at least one of the general formula A1 or A2: R 1 is H, CH3 or C2H5; R 2 is H or a C1-C4 alkyl group; R 3 is a C1-C6 alkyl group or a C1-C6 alkylene group; R 4 is H or a C1-C4 alkyl group; R 5 is H or a C1-C4 alkyl group; R 6 is H, CH3 or C2H5; R 7 is a C1-C6 alkyl group or a C1-C6 alkylene group; R 8 is H or a C1-C4 alkyl group; and R 9is H or a C1-C4 alkyl group.

[0007] Also provided is a method of preparing a composition, the method comprising combining, in any order, fibers, a binder, and an additive, wherein: the binder comprises a colloidal dispersion of a polymer comprising from 0.1 wt % to 25 wt % of acid-functionalized monomer units, based on the total weight of the polymer, wherein the colloidal dispersion of the polymer has a pH of 5 to 12; and the additive comprises a water-soluble polymerization reaction product of monomer units comprising from 5 wt % to 99 wt % of monomer units represented by at least one of the following general formulas A1 or A2, based on the total weight of the additive:

[0008]

[0009] Wherein independently, for each molecule of the monomer unit represented by at least one of the general formula A1 or A2: R 1 is H, CH3 or C2H5; R 2 is H or a C1-C4 alkyl group; R 3 is a C1-C6 alkyl group or a C1-C6 alkylene group; R 4 is H or a C1-C4 alkyl group; R 5 is H or a C1-C4 alkyl group; R 6 is H, CH3 or C2H5; R 7 is a C1-C6 alkyl group or a C1-C6 alkylene group; 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 for preparing a fibrous substrate, the method comprising forming fibers and a binder into a fibrous substrate, and thereafter adding an additive to the fibrous substrate, wherein: the binder comprises a colloidal dispersion of a polymer, the polymer comprising 0.1 wt % to 25 wt % of acid-functionalized monomer units, based on the total weight of the polymer, wherein the colloidal dispersion of the polymer has a pH of 5 to 12; and the additive comprises a water-soluble polymerization product of monomer units, the water-soluble polymerization product of the monomer units comprising 5 wt % to 99 wt % of monomer units represented by at least one of the following general formulas A1 or A2, based on the total weight of the additive:

[0011]

[0012] Wherein independently, for each molecule of the monomer unit represented by at least one of the general formula A1 or A2: R 1 is H, CH3 or C2H5; R 2is H or a C1-C4 alkyl group; R 3 is a C1-C6 alkyl group or a C1-C6 alkylene group; R 4 is H or a C1-C4 alkyl group; R 5 is H or a C1-C4 alkyl group; R 6 is H, CH3 or C2H5; R 7 is a C1-C6 alkyl group or a C1-C6 alkylene group; R 8 is H or a C1-C4 alkyl group; and R 9 is H or a C1-C4 alkyl group.

[0013] Also provided is a method of improving at least one physical property of a fibrous substrate, wherein the fibrous substrate comprises fibers and a binder, wherein the method comprises adding an additive to the fibrous substrate, wherein: the binder comprises a colloidal dispersion of a polymer comprising 0.1 wt % to 25 wt % of acid-functionalized monomer units, based on the total weight of the polymer, wherein the colloidal dispersion of the polymer has a pH of 5 to 12; and the additive comprises a water-soluble polymerization reaction product of monomer units, the water-soluble polymerization reaction product of the monomer units comprising 5 wt % to 99 wt % of monomer units represented by at least one of the following general formulas A1 or A2, based on the total weight of the additive:

[0014]

[0015] Wherein independently, for each molecule of the monomer unit represented by at least one of the general formula A1 or A2: R 1 is H, CH3 or C2H5; R 2 is H or a C1-C4 alkyl group; R 3 is a C1-C6 alkyl group or a C1-C6 alkylene group; R 4 is H or a C1-C4 alkyl group; R 5 is H or a C1-C4 alkyl group; R 6 is H, CH3 or C2H5; R 7 is a C1-C6 alkyl group or a C1-C6 alkylene group; R 8 is H or a C1-C4 alkyl group; and R 9 is H or a C1-C4 alkyl group.

[0016] Also provided is a method of preparing a fibrous substrate, wherein the fibrous substrate comprises 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 the physical properties of the fibrous substrate, wherein: the binder comprises a colloidal dispersion of a polymer comprising 0.1 wt % to 25 wt % of acid-functionalized monomer units, based on the total weight of the polymer, wherein the colloidal dispersion of the polymer has a pH of 5 to 12; and the additive comprises a water-soluble polymerization reaction product of monomer units, the water-soluble polymerization reaction product of the monomer units comprising 5 wt % to 99 wt % of monomer units represented by at least one of the following general formulas A1 or A2, based on the total weight of the additive:

[0017]

[0018] Wherein independently, for each molecule of the monomer unit represented by at least one of the general formula A1 or A2: R 1 is H, CH3 or C2H5; R 2 is H or a C1-C4 alkyl group; R 3 is a C1-C6 alkyl group or a C1-C6 alkylene group; R 4 is H or a C1-C4 alkyl group; R 5 is H or a C1-C4 alkyl group; R 6 is H, CH3 or C2H5; R 7 is a C1-C6 alkyl group or a C1-C6 alkylene group; R 8 is H or a C1-C4 alkyl group; and R 9 is H or a C1-C4 alkyl group.

[0019] The following implementations of the present subject matter are contemplated:

[0020] 1. A composition comprising fibers, a binder, and an additive, wherein: the binder comprises a colloidal dispersion of a polymer comprising 0.1 wt % to 25 wt % of acid-functionalized monomer units, based on the total weight of the polymer, wherein the colloidal dispersion of the polymer has a pH of 5 to 12; and the additive comprises a water-soluble polymerization product of monomer units comprising 5 wt % to 99 wt % of monomer units represented by at least one of the following general formulas A1 or A2, based on the total weight of the additive:

[0021]

[0022] Wherein independently, for each molecule of the monomer unit represented by at least one of the general formula A1 or A2: R 1is H, CH3 or C2H5; R 2 is H or a C1-C4 alkyl group; R 3 is a C1-C6 alkyl group or a C1-C6 alkylene group; R 4 is H or a C1-C4 alkyl group; R 5 is H or a C1-C4 alkyl group; R 6 is H, CH3 or C2H5; R 7 is a C1-C6 alkyl group or a C1-C6 alkylene group; R 8 is H or a C1-C4 alkyl group; and R 9 is H or a C1-C4 alkyl group.

[0023] 2. The composition according to embodiment 1, wherein independently, for each molecule of the monomer unit represented by at least one of the general formula A1 or A2: R 1 is H or CH3;

[0024] R 2 is H or CH3; R 4 is H or CH3; R 5 is H or CH3; R 6 is H or CH3;

[0025] R 8 is H or CH3; and R 9 It is H or CH3.

[0026] 3. The composition according to embodiment 1 or embodiment 2, wherein independently, for each molecule of the monomer unit represented by at least one of the general formula A1 or A2:

[0027] R 3 is a C1-C4 alkyl group or a C1-C4 alkylene group; and R 7 It is a C1-C4 alkyl group or a C1-C4 alkylene group.

[0028] 4. The composition according to any one of embodiments 1 to 3, wherein independently, for each molecule of the monomer unit represented by at least one of the general formula A1 or A2:

[0029] R 1 CH3; R 2 H; R 3 is C3H6; R 4 CH3; R 5 CH3; R 6 CH3; R 7 is C3H6; R 8 is CH3; and R 9 For CH3.

[0030] 5. The composition according to any one of embodiments 1 to 4, wherein the binder is present in the composition in an amount of 5% to 60% by weight, based on the total dry weight of the composition.

[0031] 6. The composition according to any one of embodiments 1 to 5, wherein the binder is present in the composition in an amount of 5% to 40% by weight, based on the total dry weight of the composition.

[0032] 7. The composition according to any one of embodiments 1 to 6, wherein the binder is present in the composition in an amount of 5% to 30% by weight, based on the total dry weight of the composition.

[0033] 8. The composition according to any one of embodiments 1 to 7, wherein the binder is present in the composition in an amount of 5% to 25% by weight, based on the total dry weight of the composition.

[0034] 9. The composition according to any one of embodiments 1 to 8, wherein the binder is present in the composition in an amount of 10% to 60% by weight, based on the total dry weight of the composition.

[0035] 10. The composition according to any one of embodiments 1 to 9, wherein the binder is present in the composition in an amount of 10% to 40% by weight, based on the total dry weight of the composition.

[0036] 11. The composition according to any one of embodiments 1 to 10, wherein the binder is present in the composition in an amount of 10% to 30% by weight, based on the total dry weight of the composition.

[0037] 12. The composition according to any one of embodiments 1 to 11, wherein the binder is present in the composition in an amount of 10% to 25% by weight, based on the total dry weight of the composition.

[0038] 13. The composition according to any one of embodiments 1 to 12, wherein the composition comprises 0.01 to 30 parts of the additive relative to 100 parts of the binder.

[0039] 14. The composition according to any one of embodiments 1 to 13, wherein the composition comprises 0.01 to 25 parts of the additive relative to 100 parts of the binder.

[0040] 15. The composition according to any one of embodiments 1 to 14, wherein the composition comprises 0.05 to 20 parts of the additive relative to 100 parts of the binder.

[0041] 16. The composition according to any one of embodiments 1 to 15, wherein the composition comprises 0.05 to 10 parts of the additive relative to 100 parts of the binder.

[0042] 17. The composition according to any one of embodiments 1 to 16, wherein the composition comprises 0.1 to 20 parts of the additive relative to 100 parts of the binder.

[0043] 18. The composition according to any one of embodiments 1 to 17, wherein the composition comprises 0.1 to 10 parts of the additive relative to 100 parts of the binder.

[0044] 19. The composition according to any one of embodiments 1 to 18, wherein the composition comprises 0.1 to 5 parts of the additive relative to 100 parts of the binder.

[0045] 20. The composition according to any one of embodiments 1 to 19, wherein the composition comprises 0.1 to 2.5 parts of the additive relative to 100 parts of the binder.

[0046] 21. The composition according to any one of embodiments 1 to 20, wherein the composition comprises 0.2 to 5 parts of the additive relative to 100 parts of the binder.

[0047] 22. The composition according to any one of embodiments 1 to 21, wherein the composition comprises 0.2 to 2.5 parts of the additive relative to 100 parts of the binder.

[0048] 23. The composition of any one of embodiments 1 to 22, wherein the polymer comprises 0.5 wt% to 10 wt% of acid-functional monomer units, based on the total weight of the polymer.

[0049] 24. The composition of any one of embodiments 1 to 23, wherein the polymer comprises 1 to 5 weight percent of acid-functional monomer units, based on the total weight of the polymer.

[0050] 25. The composition according to any one of embodiments 1 to 24, wherein the colloidal dispersion of the polymer has a pH of 7 to 12.

[0051] 26. The composition according to any one of embodiments 1 to 25, wherein the colloidal dispersion of the polymer has a pH of 7 to 10.

[0052] 27. The composition according to any one of embodiments 1 to 26, wherein the colloidal dispersion of the polymer has a pH of 7 to 9.

[0053] 28. The composition according to any one of embodiments 1 to 27, wherein the colloidal dispersion of the polymer has a pH of 7.5 to 9.

[0054] 29. The composition according to any one of embodiments 1 to 28, wherein the colloidal dispersion of the polymer has a pH of 8 to 9.

[0055] 30. The composition according to any one of embodiments 1 to 29, wherein the colloidal dispersion of the polymer comprises at least one of an acrylic latex, a styrene-butadiene resin latex, a vinyl chloride copolymer latex, or a vinylidene chloride copolymer latex.

[0056] 31. The composition according to any one of embodiments 1 to 30, wherein the water-soluble polymerization product of the monomer unit comprises 20 wt % based on the total weight of the additive.

[0057] To 95% by weight of monomer units represented by at least one of the general formula A1 or A2.

[0058] 32. The composition according to any one of embodiments 1 to 31, wherein the water-soluble polymerization product of the monomer unit comprises 50 wt % based on the total weight of the additive.

[0059] To 80% by weight of monomer units represented by at least one of the general formula A1 or A2.

[0060] 33. A composition according to any one of embodiments 1 to 32, wherein the water-soluble polymerization reaction product of the monomer unit contains 1 wt.% to 95 wt.% of monomer units containing vinyl groups other than the monomer unit represented by at least one of the general formulas A1 or A2, based on the total weight of the additive.

[0061] 34. A composition according to any one of embodiments 1 to 33, wherein the water-soluble polymerization reaction product of the monomer unit contains 5 wt.% to 80 wt.% of monomer units containing vinyl groups other than the monomer unit represented by at least one of the general formulas A1 or A2, based on the total weight of the additive.

[0062] 35. The composition according to any one of embodiments 1 to 34, wherein the water-soluble polymerization product of the monomer unit comprises 20 wt % based on the total weight of the additive.

[0063] To 50% by weight of a vinyl group-containing monomer unit other than the monomer unit represented by at least one of the general formula A1 or A2.

[0064] 36. The composition according to any one of embodiments 33 to 35, wherein the monomer unit containing a vinyl group other than the monomer unit represented by at least one of the general formulas A1 or A2 comprises at least one acrylate monomer and / or at least one styrene butadiene monomer.

[0065] 37. The composition of embodiment 36, wherein the at least one acrylate comprises at least one of methacrylate, methyl methacrylate, ethyl acrylate, ethyl methacrylate, butyl acrylate, butyl methacrylate, ethylhexyl acrylate, or ethylhexyl methacrylate.

[0066] 38. The composition according to embodiment 36, wherein the at least one acrylate comprises at least one monomer unit represented by the following general formula B:

[0067]

[0068] Wherein independently, for each molecule of the monomer unit: R 10 is H, CH3 or C2H5; R 11 is a poly(alkylene oxide) having a number average molecular weight of 88 g / mole to 1200 g / mole, wherein the poly(alkylene oxide) consists of repeating alkylene oxide units, and wherein each alkylene oxide unit independently has 2 to 4 carbons; and R 12 is H, a C1-C8 alkyl group or a C1-C8 alkylene group.

[0069] 39. The composition according to embodiment 38, wherein R 11 The number average molecular weight is 132g /

[0070] mol to 1100 g / mol of poly(alkylene oxide).

[0071] 40. The composition of embodiment 38 or embodiment 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).

[0072] 41. A composition according to any one of embodiments 38 to 40, wherein R 12 For H.

[0073] CH3 or C2H5.

[0074] 42. The composition of any one of embodiments 1 to 32, wherein the water-soluble polymerization reaction product of the monomer units comprises 1 wt % to 95 wt % of monomer units represented by the following general formula B:

[0075]

[0076] Wherein independently, for each molecule of the monomer unit: R 10 is H, CH3 or C2H5; R 11 is a poly(alkylene oxide) having a number average molecular weight of 88 g / mole to 1200 g / mole, wherein the poly(alkylene oxide) consists of repeating alkylene oxide units, and wherein each alkylene oxide unit independently has 2 to 4 carbons; and R 12 is H, a C1-C8 alkyl group or a C1-C8 alkylene group.

[0077] 43. A composition according to any one of embodiments 1 to 32, wherein the water-soluble polymerization reaction product of the monomer units comprises 5% to 80% by weight of the following general formula B

[0078] The monomer units represented are:

[0079]

[0080] Wherein independently, for each molecule of the monomer unit: R 10 is H, CH3 or C2H5; R 11 is a poly(alkylene oxide) having a number average molecular weight of 88 g / mole to 1200 g / mole, wherein the poly(alkylene oxide) consists of repeating alkylene oxide units, and wherein each alkylene oxide unit independently has 2 to 4 carbons; and R 12 is H, a C1-C8 alkyl group or a C1-C8 alkylene group.

[0081] 44. The composition of any one of embodiments 1 to 32, wherein the water-soluble polymerization reaction product of the monomer units comprises 20% to 50% by weight of monomer units represented by the following general formula B:

[0082]

[0083] Wherein independently, for each molecule of the monomer unit: R 10 is H, CH3 or C2H5; R 11 is a poly(alkylene oxide) having a number average molecular weight of 88 g / mole to 1200 g / mole, wherein the poly(alkylene oxide) consists of repeating alkylene oxide units, and wherein each alkylene oxide unit independently has 2 to 4 carbons; and R 12 is H, a C1-C8 alkyl group or a C1-C8 alkylene group.

[0084] 45. A composition according to any one of embodiments 42 to 44, wherein R 11 It is a poly(alkylene oxide) having a number average molecular weight of 132 g / mole to 1100 g / mole.

[0085] 46. ​​The composition of any one of embodiments 42 to 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).

[0086] 47. A composition according to any one of embodiments 42 to 46, wherein R 12 For H.

[0087] CH3 or C2H5.

[0088] 48. The composition of any one of embodiments 1 to 47, wherein the fiber comprises at least one of a natural fiber, a glass fiber, or a synthetic fiber.

[0089] 49. The composition of any one of embodiments 1 to 48, wherein the fibers comprise natural fibers.

[0090] 50. The composition of embodiment 49, wherein the natural fibers comprise cellulosic fibers.

[0091] 51. The composition of embodiment 49 or 50, wherein the fibers further comprise at least one additional type of fiber other than the natural fiber.

[0092] 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.

[0093] 53. A fibrous substrate comprising the composition according to any one of embodiments 1 to 52 formed into a substrate.

[0094] 54. A method of making a composition comprising combining, in any order, fibers, a binder, and an additive, wherein: the binder comprises a colloidal dispersion of a polymer comprising from 0.1 wt % to 25 wt % of acid-functional monomer units, based on the total weight of the polymer, wherein the colloidal dispersion of the polymer has a pH of from 5 to 12;

[0095] The additive comprises a water-soluble polymerization product of monomer units, and the water-soluble polymerization product of monomer units comprises 5 wt % to 99 wt % of monomer units represented by at least one of the following general formulas A1 or A2, based on the total weight of the additive:

[0096]

[0097] Wherein independently, for each molecule of the monomer unit represented by at least one of the general formula A1 or A2: R 1 is H, CH3 or C2H5; R2 is H or a C1-C4 alkyl group; R 3 is a C1-C6 alkyl group or a C1-C6 alkylene group; R 4 is H or a C1-C4 alkyl group; R 5 is H or a C1-C4 alkyl group; R 6 is H, CH3 or C2H5; R 7 is a C1-C6 alkyl group or a C1-C6 alkylene group; R 8 is H or a C1-C4 alkyl group; and R 9 is H or a C1-C4 alkyl group.

[0098] 55. A method of preparing a fibrous substrate, the method comprising forming fibers and a binder into the fibrous substrate, and thereafter adding an additive to the fibrous substrate, wherein: the binder comprises a colloidal dispersion of a polymer, the polymer comprising 0.1 wt% to 25 wt% of acid-functionalized monomer units, based on the total weight of the polymer, wherein the colloidal dispersion of the polymer has a pH of 5 to 12; and the additive comprises a water-soluble polymerization product of monomer units, the water-soluble polymerization product of the monomer units comprising 5 wt% to 99 wt% of monomer units represented by at least one of the following general formulas A1 or A2, based on the total weight of the additive:

[0099]

[0100] Wherein independently, for each molecule of the monomer unit represented by at least one of the general formula A1 or A2: R 1 is H, CH3 or C2H5; R 2 is H or a C1-C4 alkyl group; R 3 is a C1-C6 alkyl group or a C1-C6 alkylene group; R 4 is H or a C1-C4 alkyl group; R 5 is H or a C1-C4 alkyl group; R 6 is H, CH3 or C2H5; R 7 is a C1-C6 alkyl group or a C1-C6 alkylene group; R 8 is H or a C1-C4 alkyl group; and R 9 is H or a C1-C4 alkyl group.

[0101] 56. A method of improving at least one physical property of a fibrous substrate, wherein the fibrous substrate comprises fibers and a binder, wherein the method comprises adding an additive to the fibrous substrate, wherein: the binder comprises a colloidal dispersion of a polymer comprising from 0.1 wt% to 25 wt% of acid-functionalized monomer units, based on the total weight of the polymer, wherein the colloidal dispersion of the polymer has a pH of 5 to 12; and the additive comprises a water-soluble polymerization reaction product of monomer units comprising from 5 wt% to 99 wt% of monomer units represented by at least one of the following general formulas A1 or A2, based on the total weight of the additive:

[0102]

[0103] Wherein independently, for each molecule of the monomer unit represented by at least one of the general formula A1 or A2: R 1 is H, CH3 or C2H5; R 2 is H or a C1-C4 alkyl group; R 3 is a C1-C6 alkyl group or a C1-C6 alkylene group; R 4 is H or a C1-C4 alkyl group; R 5 is H or a C1-C4 alkyl group; R 6 is H, CH3 or C2H5; R 7 is a C1-C6 alkyl group or a C1-C6 alkylene group; R 8 is H or a C1-C4 alkyl group; and R 9 is H or a C1-C4 alkyl group.

[0104] 57. A method of preparing a fibrous substrate, wherein the fibrous substrate comprises 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 the physical properties of the fibrous substrate, wherein: the binder comprises a colloidal dispersion of a polymer comprising from 0.1 wt% to 25 wt% of acid-functionalized monomer units, based on the total weight of the polymer, wherein the colloidal dispersion of the polymer has a pH of 5 to 12; and the additive comprises a water-soluble polymerization product of monomer units comprising from 5 wt% to 99 wt% of monomer units represented by at least one of the following general formulas A1 or A2, based on the total weight of the additive:

[0105]

[0106] Wherein independently, for each molecule of the monomer unit represented by at least one of the general formula A1 or A2: R 1 is H, CH3 or C2H5; R2 is H or a C1-C4 alkyl group; R 3 is a C1-C6 alkyl group or a C1-C6 alkylene group; R 4 is H or a C1-C4 alkyl group; R 5 is H or a C1-C4 alkyl group; R 6 is H, CH3 or C2H5; R 7 is a C1-C6 alkyl group or a C1-C6 alkylene group; R 8 is H or a C1-C4 alkyl group; and R 9 is H or a C1-C4 alkyl group.

[0107] 58. The method according to any one of embodiments 54 to 57, wherein independently, for each molecule of the monomer unit represented by at least one of the general formula A1 or A2:

[0108] R 1 is H or CH3; R 2 is H or CH3; R 4 is H or CH3; R 5 is H or CH3;

[0109] R 6 is H or CH3; R 8 is H or CH3; and R 9 It is H or CH3.

[0110] 59. The method according to any one of embodiments 54 to 58, wherein independently, for each molecule of the monomer unit represented by at least one of the general formula A1 or A2:

[0111] R 3 is a C1-C4 alkyl group or a C1-C4 alkylene group; and R 7 It is a C1-C4 alkyl group or a C1-C4 alkylene group.

[0112] 60. The method according to any one of embodiments 54 to 59, wherein independently, for each molecule of the monomer unit represented by at least one of the general formula A1 or A2:

[0113] R 1 CH3; R 2 H; R 3 is C3H6; R 4 CH3; R 5 CH3; R 6 CH3; R 7 is C3H6; R 8 is CH3; and R 9 For CH3.

[0114] 61. The method according to any one of embodiments 54 to 60, wherein the binder is present in the composition in an amount of 5 wt.% to 60 wt.%, based on the total dry weight of the composition.

[0115] 62. The method according to any one of embodiments 54 to 61, wherein the binder is present in the composition in an amount of 5 wt.% to 40 wt.%, based on the total dry weight of the composition.

[0116] 63. The method according to any one of embodiments 54 to 62, wherein the binder is present in the composition in an amount of 5 wt.% to 30 wt.%, based on the total dry weight of the composition.

[0117] 64. The method according to any one of embodiments 54 to 63, wherein the binder is present in the composition in an amount of 5% to 25% by weight, based on the total dry weight of the composition.

[0118] 65. The method according to any one of embodiments 54 to 64, wherein the binder is present in the composition in an amount of 10 wt.% to 60 wt.%, based on the total dry weight of the composition.

[0119] 66. The method according to any one of embodiments 54 to 65, wherein the binder is present in the composition in an amount of 10 wt.% to 40 wt.%, based on the total dry weight of the composition.

[0120] 67. The method according to any one of embodiments 54 to 66, wherein the binder is present in the composition in an amount of 10 wt.% to 30 wt.%, based on the total dry weight of the composition.

[0121] 68. The method according to any one of embodiments 54 to 67, wherein the binder is present in the composition in an amount of 10 wt.% to 25 wt.%, based on the total dry weight of the composition.

[0122] 69. The method according to any one of embodiments 54 to 68, wherein the composition comprises 0.01 to 30 parts of the additive relative to 100 parts of the binder.

[0123] 70. The method according to any one of embodiments 54 to 69, wherein the composition comprises 0.01 to 25 parts of the additive relative to 100 parts of the binder.

[0124] 71. The method according to any one of embodiments 54 to 70, wherein the composition comprises 0.05 to 20 parts of the additive relative to 100 parts of the binder.

[0125] 72. The method according to any one of embodiments 54 to 71, wherein the composition comprises 0.05 to 10 parts of the additive relative to 100 parts of the binder.

[0126] 73. The method according to any one of embodiments 54 to 72, wherein the composition comprises 0.1 to 20 parts of the additive relative to 100 parts of the binder.

[0127] 74. The method according to any one of embodiments 54 to 73, wherein the composition comprises 0.1 to 10 parts of the additive relative to 100 parts of the binder.

[0128] 75. The method according to any one of embodiments 54 to 74, wherein the composition comprises 0.1 to 5 parts of the additive relative to 100 parts of the binder.

[0129] 76. The method according to any one of embodiments 54 to 75, wherein the composition comprises 0.1 to 2.5 parts of the additive relative to 100 parts of the binder.

[0130] 77. The method according to any one of embodiments 54 to 76, wherein the composition comprises 0.2 to 5 parts of the additive relative to 100 parts of the binder.

[0131] 78. The method according to any one of embodiments 54 to 77, wherein the composition comprises 0.2 to 2.5 parts of the additive relative to 100 parts of the binder.

[0132] 79. The method of any one of embodiments 54 to 78, wherein the polymer comprises 0.5 wt% to 10 wt% of acid-functional monomer units, based on the total weight of the polymer.

[0133] 80. The method of any one of embodiments 54 to 79, wherein the polymer comprises 1 to 5 wt% of acid-functional monomer units, based on the total weight of the polymer.

[0134] 81. The method according to any one of embodiments 54 to 80, wherein the colloidal dispersion of the polymer has a pH of 7 to 12.

[0135] 82. The method according to any one of embodiments 54 to 81, wherein the colloidal dispersion of the polymer has a pH of 7 to 10.

[0136] 83. The method according to any one of embodiments 54 to 82, wherein the colloidal dispersion of the polymer has a pH of 7 to 9.

[0137] 84. The method according to any one of embodiments 54 to 83, wherein the colloidal dispersion of the polymer has a pH of 7.5 to 9.

[0138] 85. The method according to any one of embodiments 54 to 84, wherein the colloidal dispersion of the polymer has a pH of 8 to 9.

[0139] 86. The method according to any one of embodiments 54 to 85, wherein the colloidal dispersion of the polymer comprises at least one of an acrylic latex, a styrene-butadiene resin latex, a vinyl chloride copolymer latex, or a vinylidene chloride copolymer latex.

[0140] 87. A method according to any one of embodiments 54 to 86, wherein the water-soluble polymerization reaction product of the monomer units comprises 20 wt% to 95 wt% of monomer units represented by at least one of the general formulas A1 or A2, based on the total weight of the additive.

[0141] 88. A method according to any one of embodiments 54 to 87, wherein the water-soluble polymerization reaction product of the monomer units comprises 50 wt% to 80 wt% of monomer units represented by at least one of formula A1 or A2, based on the total weight of the additive.

[0142] 89. A method according to any one of embodiments 54 to 88, wherein the water-soluble polymerization reaction product of the monomer unit contains 1 wt.% to 95 wt.% of monomer units containing vinyl groups other than the monomer unit represented by at least one of the general formulas A1 or A2, based on the total weight of the additive.

[0143] 90. A method according to any one of embodiments 54 to 89, wherein the water-soluble polymerization reaction product of the monomer unit contains 5 wt.% to 80 wt.% of monomer units containing vinyl groups other than the monomer unit represented by at least one of the general formulas A1 or A2, based on the total weight of the additive.

[0144] 91. A method according to any one of embodiments 54 to 90, wherein the water-soluble polymerization reaction product of the monomer unit contains 20 wt.% to 50 wt.% of monomer units containing vinyl groups other than the monomer unit represented by at least one of the general formulas A1 or A2, based on the total weight of the additive.

[0145] 92. The method according to any one of embodiments 89 to 91, wherein the monomer unit containing a vinyl group other than the monomer unit represented by at least one of the general formulas A1 or A2 comprises at least one acrylate monomer and / or at least one styrene butadiene monomer.

[0146] 93. A method according to embodiment 92, wherein the at least one acrylate comprises at least one of methacrylate, methyl methacrylate, ethyl acrylate, ethyl methacrylate, butyl acrylate, butyl methacrylate, ethylhexyl acrylate or ethylhexyl methacrylate.

[0147] 94. The method according to embodiment 92, wherein the at least one acrylic acid ester comprises at least one monomer unit represented by the following general formula B:

[0148]

[0149] Wherein independently, for each molecule of the monomer unit: R 10 is H, CH3 or C2H5; R 11 is a poly(alkylene oxide) having a number average molecular weight of 88 g / mole to 1200 g / mole, wherein the poly(alkylene oxide) consists of repeating alkylene oxide units, and wherein each alkylene oxide unit independently has 2 to 4 carbons; and R 12 is H, a C1-C8 alkyl group or a C1-C8 alkylene group.

[0150] 95. The method according to embodiment 94, wherein R 11 It is a poly(alkylene oxide) having a number average molecular weight of 132 g / mole to 1100 g / mole.

[0151] 96. The method of embodiment 94 or embodiment 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).

[0152] 97. The method according to any one of embodiments 94 to 96, wherein R 12 It is H, CH3 or C2H5.

[0153] 98. The method according to any one of embodiments 54 to 88, wherein the water-soluble polymerization reaction product of the monomer units comprises 1 wt% to 95 wt% of monomer units represented by the following general formula B:

[0154]

[0155] Wherein independently, for each molecule of the monomer unit: R 10 is H, CH3 or C2H5; R 11 is a poly(alkylene oxide) having a number average molecular weight of 88 g / mole to 1200 g / mole, wherein the poly(alkylene oxide) consists of repeating alkylene oxide units, and wherein each alkylene oxide unit independently has 2 to 4 carbons; and R 12is H, a C1-C8 alkyl group or a C1-C8 alkylene group.

[0156] 99. The method according to any one of embodiments 54 to 88, wherein the water-soluble polymerization reaction product of the monomer units comprises 5% to 80% by weight of monomer units represented by the following general formula B:

[0157]

[0158] Wherein independently, for each molecule of the monomer unit: R 10 is H, CH3 or C2H5; R 11 is a poly(alkylene oxide) having a number average molecular weight of 88 g / mole to 1200 g / mole, wherein the poly(alkylene oxide) consists of repeating alkylene oxide units, and wherein each alkylene oxide unit independently has 2 to 4 carbons; and R 12 is H, a C1-C8 alkyl group or a C1-C8 alkylene group.

[0159] 100. The method according to any one of embodiments 54 to 88, wherein the water-soluble polymerization product of the monomer units comprises 20% to 50% by weight of the following general formula B

[0160] The monomer units represented are:

[0161]

[0162] Wherein independently, for each molecule of the monomer unit: R 10 is H, CH3 or C2H5; R 11 is a poly(alkylene oxide) having a number average molecular weight of 88 g / mole to 1200 g / mole, wherein the poly(alkylene oxide) consists of repeating alkylene oxide units, and wherein each alkylene oxide unit independently has 2 to 4 carbons; and R 12 is H, a C1-C8 alkyl group or a C1-C8 alkylene group.

[0163] 101. The method according to any one of embodiments 98 to 100, wherein R 11 It is a poly(alkylene oxide) having a number average molecular weight of 132 g / mole to 1100 g / mole.

[0164] 102. The method of any one of embodiments 98 to 101, wherein at least 90 wt.% of the alkylene oxide units of the poly(alkylene oxide) have 2 carbons, based on the total weight of the poly(alkylene oxide).

[0165] 103. The method according to any one of embodiments 98 to 102, wherein R 12 For H.

[0166] CH3 or C2H5.

[0167] 104. The method according to any one of embodiments 54 to 103, wherein the fiber comprises at least one of a natural fiber, a glass fiber, or a synthetic fiber.

[0168] 105. The method of any one of embodiments 54 to 104, wherein the fiber comprises a natural fiber.

[0169] 106. The method of embodiment 105, wherein the natural fibers comprise cellulose fibers.

[0170] 107. The method according to embodiment 105 or 106, wherein the fibers further comprise at least one additional type of fiber other than the natural fiber.

[0171] 108. The composition of embodiment 107, wherein the at least one additional type of fiber comprises at least one of glass fibers or synthetic fibers.

[0172] Various features and embodiments of the present subject matter are described below by way of non-limiting illustration.

[0173] It is known that some of the substances described herein may interact in the final formulation, such that the components of the final formulation may differ from those initially added. The products formed thereby, including the products formed when the compositions of the subject matter are employed in their intended use, may not be easily described. However, all such adjustments and reaction products are included within the scope of the subject matter; the subject matter includes compositions prepared by mixing the components described herein.

[0174] As used herein, the indefinite article "a" / "an" is intended to mean one or more than one / one or more than one. As used herein, the phrase "at least one / at least one" means one or more than one / one or more than one of the following terms. Therefore, "a" / "an" and "at least one / at least one" can be used interchangeably. For example, "at least one of A, B or C" means that in alternative embodiments, only one of A, B or C may be included, and any mixture of two or more of A, B and C may be included.

[0175] As used herein, the transitional term "comprising," which is synonymous with "comprising," "containing," or "characterized by," is inclusive or open-ended and does not exclude additional, unrecited elements or method steps. However, in each use of "comprising" herein, it is intended that the term also encompasses the phrases "consisting essentially of" and "consisting of" as alternative embodiments, wherein

[0176] "Consisting of excludes any elements or steps not recited, 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 in question.

[0177] Provided is a composition comprising fibers, a binder, and an additive, wherein: the binder comprises a colloidal dispersion of a polymer comprising 0.1 wt % to 25 wt % of acid-functionalized monomer units, based on the total weight of the polymer, wherein the colloidal dispersion of the polymer has a pH of 5 to 12; and the additive comprises a water-soluble polymerization reaction product of monomer units, the water-soluble polymerization reaction product of the monomer units comprising 5 wt % to 99 wt % of monomer units represented by at least one of the following general formulas A1 or A2, based on the total weight of the additive:

[0178]

[0179] Wherein independently, for each molecule of the monomer unit represented by at least one of the general formula A1 or A2: R 1 is H, CH3 or C2H5; R 2 is H or a C1-C4 alkyl group; R 3 is a C1-C6 alkyl group or a C1-C6 alkylene group; R 4 is H or a C1-C4 alkyl group; R 5 is H or a C1-C4 alkyl group; R 6 is H, CH3 or C2H5; R 7 is a C1-C6 alkyl group or a C1-C6 alkylene group; R 8 is H or a C1-C4 alkyl group; and R 9 is H or a C1-C4 alkyl group.

[0180] Additives similar to the additives described herein are disclosed in WO 2020 / 068889 A1, where they are referred to as polyamine additives; it will be apparent to one of ordinary skill in the art that the various descriptions and / or embodiments of such polyamine additives can be applied to the embodiments of the additives described herein. However, the polyamine additives described in WO 2020 / 068889 A1 are not described as having usefulness in compositions comprising fibers, which is newly discovered as described herein.

[0181] In certain embodiments, R 1 is H or CH3. In certain embodiments, R 1 is H or C2H5. In certain embodiments, R 1 is CH3 or C2H5. In certain embodiments, R 1is H. In certain embodiments, R 1 is CH3. In certain embodiments, R 1 is C2H5.

[0182] In certain embodiments, R 2 is H or a C1-C4 (such as C1-C3, C1-C2, C2-C4, C2-C3, C3-C4, C1, C2, C3 or C4) alkyl group.

[0183] In certain embodiments, R 3 It is a C1-C6 (such as C1-C5, C1-C4, C1-C3, C1-C2, C2-C6, C2-C5, C2-C4, C2-C3, C3-C6, C3-C5, C3-C4, C4-C6, C4-C5, C5-C6, C1, C2, C3, C4, C5 or C6) alkyl group or a C1-C6 (such as C1-C5, C1-C4, C1-C3, C1-C2, C2-C6, C2-C5, C2-C4, C2-C3, C3-C6, C3-C5, C3-C4, C4-C6, C4-C5, C5-C6, C1, C2, C3, C4, C5 or C6) alkyl group.

[0184] In certain embodiments, R 4 is H or a C1-C4 (such as C1-C3, C1-C2, C2-C4, C2-C3, C3-C4, C1, C2, C3 or C4) alkyl group.

[0185] In certain embodiments, R 5 is H or a C1-C4 (such as C1-C3, C1-C2, C2-C4, C2-C3, C3-C4, C1, C2, C3 or C4) alkyl group.

[0186] In certain embodiments, R 6 is H or CH3. In certain embodiments, R 6 is H or C2H5. In certain embodiments, R 6 is CH3 or C2H5. In certain embodiments, R 6 is H. In certain embodiments, R 6 is CH3. In certain embodiments, R 6 is C2H5.

[0187] In certain embodiments, R 7It is a C1-C6 (such as C1-C5, C1-C4, C1-C3, C1-C2, C2-C6, C2-C5, C2-C4, C2-C3, C3-C6, C3-C5, C3-C4, C4-C6, C4-C5, C5-C6, C1, C2, C3, C4, C5 or C6) alkyl group or a C1-C6 (such as C1-C5, C1-C4, C1-C3, C1-C2, C2-C6, C2-C5, C2-C4, C2-C3, C3-C6, C3-C5, C3-C4, C4-C6, C4-C5, C5-C6, C1, C2, C3, C4, C5 or C6) alkyl group.

[0188] In certain embodiments, R 8 is H or a C1-C4 (such as C1-C3, C1-C2, C2-C4, C2-C3, C3-C4, C1, C2, C3 or C4) alkyl group.

[0189] In certain embodiments, R 9 is H or a C1-C4 (such as C1-C3, C1-C2, C2-C4, C2-C3, C3-C4, C1, C2, C3 or C4) alkyl group.

[0190] In certain embodiments, the binder is present in an amount of 5 to 60, such as 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 55, 20 to 50, 20 to 45, 20 to 40, 20 to 35, 20 to 30, 20 to 25, 20 to 20 40 to 60, 40 to 55, 40 to 50, 40 to 45, 45 to 60, 45 to 55, 45 to 50, 50 to 60, 50 to 55, or 55 to 60) weight % is present in the composition.

[0191] As used herein, the term "dry weight" refers to the weight of a composition excluding water and / or solvent, if any.

[0192] In certain embodiments, the composition comprises 0.01 to 30 (such as 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 to 2, 0.05 to 1.5, 0.05 to 1, 0.05 to 0.5, 0.05 to 0.4, 0.05 to 0.3, 0.05 to 0.2, 0.05 to 0.1, 0.1 to 30, 0.1 to 25, 0.1 to 20, 0.1 to 15, 0.1 to 10, 0.1 to 5, 0.1 to 4, 0.1 to 3, 0.1 to 2.5, 0.1 to 2, 0.1 to 1.5, 0.1 to 1, 0.1 to 0.5, 0.1 to 0.4, 0.1 to 0.3, 0.1 to 0.2, 0.2 to 30, 0.2 to 25, 0.2 to 20, 0.2 to 15, 0.2 to 10, 0.2 to 5, 0.2 to 4, 0.2 to 3, 0.2 to 2.5, 0.2 to 2, 0.2 to 1. 5, 0.2 to 1, 0.2 to 0.5, 0.2 to 0.4, 0.2 to 0.3, 0.3 to 30, 0.3 to 25, 0.3 to 20, 0.3 to 15, 0.3 to 10, 0.3 to 5, 0.3 to 4, 0.3 to 3, 0.3 to 2.5, 0.3 to 2, 0.3 to 1.5, 0.3 to 1, 0.3 to 0.5, 0.3 to 0.4, 0.4 to 30, 0.4 to 25, 0.4 to 20, 0.4 to 15, 0.4 to 10, 0.4 to 5, 0.4 to 4, 0.4 to 3, 0.4 to 2.5, 0.4 to 2, 0.4 to 1.5, 0.4 to 1, 0.4 to 0.5, 0.5 to 30, 0.5 to 25, 0.5 to 20, 0.5 to 15, 0.5 to 10, 0.5 to 5, 0.5 to 4, 0.5 to 3, 0.5 to 2.5, 0.5 to 2, 0.5 to 1.5, 0.5 to 1, 1 to 30, 1 to 25, 1 to 20, 1 to 15, 1 to 10, 1 to 5, 1 to 4, 1 to 3, 1 to 2.5, 1 to 2, 1 to 1.5, 1.5 to 30, 1.5 to 25, 1.5 to 20, 1 .5 to 15, 1.5 to 10, 1.5 to 5, 1.5 to 4, 1.5 to 3, 1.5 to 2.5, 1.5 to 2, 2 to 30, 2 to 25, 2 to 20, 2 to 15, 2 to 10, 2 to 5, 2 to 4, 2 to 3, 2 to 2.5, 2.5 to 30, 2.5 to 25, 2.5 to 20, 2.5 to 15, 2.5 to 10, 2.5 to 5, 2.5 to 4, 2.5 to 3, 3 to 30, 3 to 25, 3 to 20, 3 to 15, 3 to 10, 3 to 5, 3 to 4, 4 to 30, 4 to 25, 4 to 20, 4 to 15, 4 to 10, 4 to 5, 5 to 30, 5 to 25, 5 to 20, 5 to 15, 5 to 10, 10 to 30, 10 to 25, 10 to 20, 10 to 15, 15 to 30, 15 to 25, 15 to 20, 20 to 30, 20 to 25, or 25 to 30) parts of additives. In this document, the parts of additives and the parts of binder are considered to be on a "dry" basis, i.e., excluding water and / or solvent (if any). .

[0193] As understood by one of ordinary skill in the art, the term "colloidal dispersion," when used in the context of a colloidal dispersion of a polymer described herein, means that the polymer is dispersed and stable in the continuous phase of the dispersion.

[0194] In certain embodiments, the polymer comprises 0.1 to 25 (such as 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 , 0.5 to 9, 0.5 to 8, 0.5 to 7, 0.5 to 6, 0.5 to 5, 0.5 to 4, 0.5 to 3, 0.5 to 2, 0.5 to 1, 1 to 25, 1 to 20, 1 to 15, 1 to 10, 1 to 9, 1 to 8, 1 to 7, 1 to 6, 1 to 5, 1 to 4, 1 to 3, 1 to 2, 2 to 25, 2 to 20, 2 to 15, 2 to 10, 2 to 9, 2 to 8, 2 to 7, 2 to 6, 2 to 5, 2 to 4, 2 to 3, 3 to 25, 3 to 20, 3 to 15, 3 to 10, 3 to 9, 3 to 8, 3 to 7, 3 to 6, 3 to 5, 3 to 4, 4 to 25, 4 to 20, 4 to 15, 4 to 10, 4 to 9, 4 to 8, 4 to 7, 4 to 6, 4 to 5, 5 to 25, 5 to 20, 5 to 15, 5 to 10, 5 to 9, 5 to 8, 5 to 7, 5 to 6, 6 to 25, 6 to 20, 6 or 20 to 25) weight percent of acid functional monomer units.

[0195] In certain embodiments, the colloidal dispersion of the polymer has a particle size of 5 to 12 (such as 5.5 to 12, 6 to 12, 6.5 to 12, 7 to 12, 7.5 to 12, 8 to 12, 8.5 to 12, 5 to 11.5, 5.5 to 11.5, 6 to 11.5, 6.5 to 11.5, 7 to 11.5, 7.5 to 11.5, 8 to 11.5, 8.5 to 11.5, 5 to 11, 5.5 to 11, 6 to 11, 6.5 to 11, 7 to 11, 7.5 to 11, 8 to 11, 8.5 to 11, 5 to 10.5, 5.5 to 10.5 9, 5 to 9, 5.5 to 9, 6 to 9, 6.5 to 9, 7 to 9, 7.5 to 9, 8 to 9, or 8.5 to 9).

[0196] In certain embodiments, the colloidal dispersion of a polymer includes at least one of an acrylic latex, a styrene-butadiene resin latex, a vinyl chloride copolymer latex, or a vinylidene chloride copolymer latex.

[0197] In certain embodiments, the water-soluble polymeric reaction product of monomer units comprises from 5 to 99 (e.g., from 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 99, 8, 70 to 98, 5 to 97, 10 to 97, 15 to 97, 20 to 97, 30 to 97, 40 to 97, 50 to 97, 60 to 97, 70 to 97, 5 to 96, 10 to 96, 15 to 96, 20 to 96, 30 to 96, 40 to 96, 50 to 96, 60 to 96, 70 to 96, 5 to 95, 10 to 95, 15 to 95, 20 to 9 5, 30 to 95, 40 to 95, 50 to 95, 60 to 95, 70 to 95, 5 to 90, 10 to 90, 15 to 90, 20 to 90, 30 to 90, 40 to 90, 50 to 90, 60 to 90, 70 to 90, 5 to 85, 10 to 85, 15 to 85, 20 to 85, 30 to 85, 40 to 85, 50 to 85, 60 to 85, 70 to The invention also comprises at least one monomer unit represented by the general formula A1 or A2 in an amount of 85, 5 to 80, 10 to 80, 15 to 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) weight percent of the monomer units represented by at least one of the general formula A1 or A2.

[0198] In certain embodiments, the water-soluble polymerization reaction product of monomer units comprises 1 to 95 (such as 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 70, 1 3 to 40, 4 to 40, 5 to 40, 10 to 40, 15 to 40, 20 to 40, 25 to 40, 1 to 30, 2 to 30, 3 to 30, 4 to 30, 5 to 30, 10 to 30, 15 to 30, 20 to 30, or 25 to 30) wt% of monomer units containing vinyl groups other than monomer units represented by at least one of the general formula A1 or A2.

[0199] In certain embodiments, the monomeric unit containing a vinyl group other than the monomeric unit represented by at least one of the general formula 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., the at least one acrylate monomer) comprises at least one of methacrylate, 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., the at least one acrylate monomer) comprises at least one monomeric unit represented by the following general formula B:

[0200]

[0201] Wherein independently, for each molecule of the monomer unit: R 10 is H, CH3 or C2H5; R 11 is a poly(alkylene oxide), wherein the poly(alkylene oxide) consists of repeating alkylene oxide units; and R 12 is H, a C1-C8 alkyl group or a C1-C8 alkylene group. 10 is H or CH3. In certain embodiments, R10 is H or C2H5. In certain embodiments, R 10 is CH3 or C2H5. 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 11The poly(alkylene oxide) is a poly(alkylene oxide) having a number average molecular weight of 88 to 1200 (such as 132 to 1200, 88 to 1100, or 132 to 1100) g / mole. In certain embodiments, each alkylene oxide unit independently has 2 to 4 (such as 2 to 3, 3 to 4, 2, 3, or 4) carbon atoms. In certain embodiments, at least 5 (such as 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 % of the alkylene oxide units of the poly(alkylene oxide) have 2 carbon atoms, based on the total weight of the poly(alkylene oxide). In certain embodiments, the amount of the poly(alkylene oxide) is from 5 to 100 (e.g., from 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, 10 to 100, 10 to 95, 10 to 90, 10 to 85, 10 to 80, 10 to 75, 10 to 70, 10 to 65, 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 100, 15 to 95, 15 to 90, 15 to 85, 15 to 80, 15 to 75, 15 to 70, 15 to 65, 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 100, 20 to 95, 20 to 90, 20 to 85, 20 to 80, 20 to 75, 20 to 70, 20 to 65, 20 to 60, 20 to 55, 20 to 50, 20 to 45, 20 to 40, 20 to 35, 20 to 30, 20 to 25, 25 to 100, 25 to 95, 25 to 90, 25 to 85, 25 to 80, 25 to 75, 25 to 70, 25 to 65, 25 to 60, 25 to 55, 25 to 50, 25 to 45, 25 to 40, 25 to 35, 25 to 30, 30 to 100, 30 to 95, 30 to 90, 30 to 85, 30 to 80, 0 to 75, 30 to 70, 30 to 65, 30 to 60, 30 to 55, 30 to 50, 30 to 45, 30 to 40, 30 to 35, 35 to 100, 35 to 95, 35 to 90, 35 to 85, 35 to 80, 35 to 75, 35 to 70, 35 to 65, 35 to 60, 35 to 55, 35 to 50, 35 to 45, 35 to 40, 40 to 100, 40 to 95, 40 to 90, 40 to 85, 40 to 80, 40 to 75, 40 to 70, 40 to 65, 40 to 60,40 to 55, 40 to 50, 40 to 45, 45 to 100, 45 to 95, 45 to 90, 45 to 85, 45 to 80, 45 to 75, 45 to 70, 45 to 65, 45 to 60, 45 to 55, 45 to 50, 50 to 100, 50 to 95, 50 to 90, 50 to 85, 50 to 80, 50 to 75, 50 to 70, 50 to 65, 50 to 60, 50 to 55, 55 to 100, 55 to 95, 55 to 90, 55 to 85, 55 to 80, 55 to 75, 55 to 70, 55 to 65, 55 to 60, 60 to 100, 60 to 95, 60 to 90, 60 In some embodiments, R, R, R, R, R, R, R, R, R, R, R, R, R, R, R, R, R, R, R, R, R, R, R, R, R, R, R, R, R, R, R, R, R, R, R, R, R, R, R, R, R, R, 12 is H, 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) alkyl group , or 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. In certain embodiments, R 12 It is H, CH3 or C2H5.

[0202] In certain embodiments, the water-soluble polymerization reaction product of monomer units comprises 1 to 95 (such as 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, 3 to 40, 4 to 40, 5 to 40, 10 to 40, 15 to 40, 20 to 40, 25 to 40, 1 to 30, 2 to 30, 3 to 30, 4 to 30, 5 to 30, 10 to 30, 15 to 30, 20 to 30, or 25 to 30) wt% of monomer units represented by the following formula B:

[0203]

[0204] Wherein independently, for each molecule of the monomer unit: R 10 is H, CH3 or C2H5; R 11 is a poly(alkylene oxide), wherein the poly(alkylene oxide) consists of repeating alkylene oxide units; and R 12 is H, a C1-C8 alkyl group or a C1-C8 alkylene group. 10 is H or CH3. In certain embodiments, R 10 is H or C2H5. In certain embodiments, R 10 is CH3 or C2H5. 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 11The poly(alkylene oxide) is a poly(alkylene oxide) having a number average molecular weight of 88 to 1200 (such as 132 to 1200, 88 to 1100, or 132 to 1100) g / mole. In certain embodiments, each alkylene oxide unit independently has 2 to 4 (such as 2 to 3, 3 to 4, 2, 3, or 4) carbon atoms. In certain embodiments, at least 5 (such as 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 % of the alkylene oxide units of the poly(alkylene oxide) have 2 carbon atoms, based on the total weight of the poly(alkylene oxide). In certain embodiments, the amount of the poly(alkylene oxide) is from 5 to 100 (e.g., from 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, 10 to 100, 10 to 95, 10 to 90, 10 to 85, 10 to 80, 10 to 75, 10 to 70, 10 to 65, 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 100, 15 to 95, 15 to 90, 15 to 85, 15 to 80, 15 to 75, 15 to 70, 15 to 65, 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 100, 20 to 95, 20 to 90, 20 to 85, 20 to 80, 20 to 75, 20 to 70, 20 to 65, 20 to 60, 20 to 55, 20 to 50, 20 to 45, 20 to 40, 20 to 35, 20 to 30, 20 to 25, 25 to 100, 25 to 95, 25 to 90, 25 to 85, 25 to 80, 25 to 75, 25 to 70, 25 to 65, 25 to 60, 25 to 55, 25 to 50, 25 to 45, 25 to 40, 25 to 35, 25 to 30, 30 to 100, 30 to 95, 30 to 90, 30 to 85, 30 to 80, 0 to 75, 30 to 70, 30 to 65, 30 to 60, 30 to 55, 30 to 50, 30 to 45, 30 to 40, 30 to 35, 35 to 100, 35 to 95, 35 to 90, 35 to 85, 35 to 80, 35 to 75, 35 to 70, 35 to 65, 35 to 60, 35 to 55, 35 to 50, 35 to 45, 35 to 40, 40 to 100, 40 to 95, 40 to 90, 40 to 85, 40 to 80, 40 to 75, 40 to 70, 40 to 65, 40 to 60,40 to 55, 40 to 50, 40 to 45, 45 to 100, 45 to 95, 45 to 90, 45 to 85, 45 to 80, 45 to 75, 45 to 70, 45 to 65, 45 to 60, 45 to 55, 45 to 50, 50 to 100, 50 to 95, 50 to 90, 50 to 85, 50 to 80, 50 to 75, 50 to 70, 50 to 65, 50 to 60, 50 to 55, 55 to 100, 55 to 95, 55 to 90, 55 to 85, 55 to 80, 55 to 75, 55 to 70, 55 to 65, 55 to 60, 60 to 100, 60 to 95, 60 to 90, 60 In some embodiments, R, R, R, R, R, R, R, R, R, R, R, R, R, R, R, R, R, R, R, R, R, R, R, R, R, R, R, R, R, R, R, R, R, R, R, R, R, R, R, R, R, R, 12 is H, 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) alkyl group , or 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. In certain embodiments, R 12 It is H, CH3 or C2H5.

[0205] In certain embodiments, the fiber comprises at least one of natural fiber, glass fiber or synthetic fiber. In certain embodiments, the fiber comprises natural fiber. In certain embodiments, the natural fiber comprises cellulose fiber. In certain embodiments, the fiber also comprises at least one additional type of fiber except natural fiber. In certain embodiments, the at least one additional type of fiber comprises at least one of glass fiber or synthetic fiber. It is known that there are many types of fibers that can be used for applications described herein, and it is expected that the subject matter disclosed herein should have a wide range of applicability to the various types of fibers that can be used in the compositions described herein.

[0206] Also provided are fibrous substrates comprising the compositions described herein.

[0207] Various methods of preparing and / or using the above compositions are also provided, as described below. In addition to the methods described below, similar uses of the compositions described herein are also contemplated, and as those skilled in the art understand based on the description of the methods provided below, they should be considered to be disclosed herein.

[0208] In certain embodiments, a method of preparing the above-described composition is provided, the method comprising combining, in any order, fibers, a binder, and an additive, the characteristics of which are described in detail above.

[0209] In certain embodiments, a method for preparing a fibrous substrate is provided, the method comprising forming fibers and a binder into a fibrous substrate, and then adding an additive to the fibrous substrate. The fibers, binders and additives used to prepare the fibrous substrate and the compositions formed by combining them are described in detail above.

[0210] In certain embodiments, the fibers and binder may be combined together, and the additives may be added at any point during the manufacture of the composition. For example, the fibers and binder may be combined in a slurry and used to lay down a web including the fibers and binder, and the additives may be added prior to drying / curing of the web; the additives may be added at any point during further processing of the web, as long as they are added prior to drying / curing of the binder within the web.

[0211] In certain embodiments, the fibers may be formed into a slurry and laid flat in a fiber web, followed by the addition of binders and additives. In these embodiments, the binders and additives may be added to the fiber web individually or together.

[0212] In certain embodiments, the fibers, binder, and additives may be combined together to form a slurry, which is then used to lay down the fiber web.

[0213] Fibrous webs, nonwoven fibrous materials and / or paper are prepared according to various methods, as is known to those skilled in the art, and thus it will be apparent to those skilled in the art after reading this disclosure at which point during a particular manufacturing process the addition of additives may be most rapid, and any testing required to make such determinations will be relatively easily accomplished according to known procedures.

[0214] In certain embodiments, a method for improving at least one physical property of a fibrous substrate is provided, wherein the fibrous substrate comprises fibers and a binder, wherein the method comprises adding an additive to the fibrous substrate. The fibers, binders, and additives used to prepare the fibrous substrate and the compositions formed by combining them are described in detail above.

[0215] In certain embodiments, a method for preparing a fibrous substrate is provided, wherein the fibrous substrate comprises 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 the physical properties of the fibrous substrate. The fibers, binders, and additives used to prepare the fibrous substrate, as well as the compositions 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 will still meet the requirements of the specific application for which the fibrous substrate can be used.

[0216] As described above, certain fiber compositions may be subject to binder migration, which may adversely affect the physical properties of the fiber composition. It has been found that the additives described herein can reduce or prevent binder migration in at least some fiber compositions and thus allow for reduced binder requirements and / or increased physical properties in the fiber composition. It is uncertain which physical properties of the fiber composition may affect binder migration in the fiber composition, as 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 certain sheet-like fiber compositions; such methods are known in the industry. For example, the following procedure can be used to visually observe binder migration in some sheet-like fiber compositions (referred to as "fabrics" 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 so that there are greater than 20 parts of solution per 1 part of fabric to be tested; (2) Bring the dye bath to a boil; (3) Place the fabric in the boiling dye bath and allow to stand for 5 to 10 minutes; (4) Remove the fabric from the dye bath, rinse thoroughly with water, and dry; (5) Using a high power microscope - evaluation of binder migration is indicated by differential staining through the thickness of the fabric. It should be noted that this method may not work for certain fabrics, such as fabrics having a particular fiber composition that attracts dye and / or fabrics that are too thin to visually observe binder migration through the thickness of the fabric. It is believed that it will be apparent to one of ordinary skill in the art whether this method can successfully identify binder migration in a particular fabric after performing the procedure on the fabric. Example

[0217] The subject matter disclosed herein can be better understood with reference to the following examples, which are only used to further illustrate the subject matter disclosed herein. The exemplary embodiments should not be interpreted as limiting the subject matter in any way.

[0218] Example Preparation

[0219] Example 1: A polymerized latex was prepared by an emulsion polymerization process run in a 5 liter 4-neck spherical reactor equipped with a half-moon blade agitator, a temperature probe, a condenser, and a feed port. The monomers were contained separately in pre-mixed emulsion containers and gradually metered into the reactor over 2 hours to achieve a steady and controlled reaction rate. The reaction was carried out as a semi-batch in-situ seeding process, where 5 wt% of the pre-emulsified monomer mixture was polymerized in batches to provide a 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, where the reactor was immersed in a water bath with a controlled temperature. A slight nitrogen purge was applied throughout the reaction. The pre-emulsion contents were prepared as follows: 475 grams of water (as used in the examples, the term "water" refers to deionized water), 30.88 grams of A 45% aqueous solution of DB45 surfactant was mixed and then the monomers were added under stirring: 883 grams of styrene, 931 grams of n-butyl acrylate, 57 grams of a 50% aqueous solution of acrylamide and 57 grams of methacrylic acid. 1045 grams of water was mixed with 4.75 grams of The reactor contents were prepared by mixing a 45% aqueous solution of DB45. The reactor contents were heated to 80°C and an in-situ seed consisting of a 5% by weight 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 seed formation reaction was allowed to proceed for 15 minutes, the temperature was then set to 83.5°C, and the pre-emulsion was started to be fed into the reactor and continued at a constant rate for 120 minutes. Thirty minutes after the pre-emulsion feed began, an initiator solution consisting of 2.57 g of sodium persulfate and 133 g of water was metered into the reactor and continued for 120 minutes. After the metered initiator feed was completed, the temperature was maintained at 83.5° C. for another 60 minutes, then the reactor 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 tert-butyl hydroperoxide and 1.9 g of a 30% aqueous solution of sodium dodecyl sulfate was added, followed by an aqueous solution consisting of 19 g of water and 1.43 g of isoascorbic acid. Thirty minutes after the first redox initiator, another identical redox initiator was added to the reactor. Sixty minutes after the last redox initiator addition, the reactor was cooled to 40° C. and the reaction product was filtered through a 150 micron nylon mesh filter.

[0220] Example 2: Additives were prepared by a free radical solution copolymerization process as described below. The monomer composition was 70 DMAPMA: 30 MPEG350 MA. The following aqueous polymer was prepared. A monomer premix was prepared by mixing 120 grams of water, 84 grams of dimethylaminopropyl methacrylamide (DMAPMA) and 36 grams of polyethylene glycol methacrylate (MPEG 350MA). Initiator A was prepared by mixing 1.37 grams of 70% tert-butyl hydroperoxide (TBHP) in 4.8 grams of water. Reducing agent A was prepared by dissolving 0.96 grams of isoascorbic acid in 24 grams of water. A one liter reactor was charged with 336 grams of water, 1.68 grams of 0.15% iron (II) sulfate heptahydrate and 0.48 grams of 1% tetrasodium ethylenediaminetetraacetate (Na4-ETDA) under nitrogen blanketing and appropriate stirring, and then heated to 60°C. At 60°C, initiator A was added to the reactor. After about 2 minutes, the monomer premix was added to the reaction vessel in proportion over a period of 120 minutes, and the reducing agent A was added to the reactor in proportion over a period of 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 reactor 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 reactor. After 5 minutes, a solution of 0.25 g of isoascorbic acid in 6 g of water was added to the reactor. The reactor 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 reactor. After 5 minutes, a solution of 0.25 g of isoascorbic acid in 6 g of water was added to the reactor. The reactor was maintained at 50° C. for about 30 minutes. Then, the reactor was cooled to room temperature. The polymer had a pH of 10.5, a solids content of 22.4%, and a viscosity of 120 cps.

[0221] Example 3: A blend was prepared by first adjusting the Example 1 polymer latex to pH>9 with a 28% aqueous solution of ammonia, and then mixing the resulting latex with the Example 2 additive in a weight ratio of 99.5:0.5.

[0222] Example 4: A blend was prepared by first adjusting the Example 1 polymer latex to pH>9 with a 28% aqueous solution of ammonia, and then mixing the resulting latex with the Example 2 additive in a weight ratio of 99:1.

[0223] Example 5: A blend was prepared by first adjusting the Example 1 polymer latex to pH>9 with a 95% aqueous solution of 2-amino-2-methyl-1-propanol (AMP-95), and then mixing the resulting latex with the Example 2 additive in a weight ratio of 99.5:0.5.

[0224] Example 6: A blend was prepared by first neutralizing the Example 1 polymer latex with dimethylethanolamine (DMEA) to pH>9, and then mixing the resulting latex with the Example 2 additive in a weight ratio of 99.5:0.5.

[0225] Example 7: A blend was prepared by first neutralizing the Example 1 polymer latex with a 20% aqueous solution of sodium hydroxide to a pH>9, and then mixing the resulting latex with the Example 2 additive in a weight ratio of 99.5:0.5.

[0226] Example 8: A polymer latex was prepared and characterized in the same manner as described in Example 1, wherein 57 grams of a 50% aqueous solution of N-methylol acrylamide was used instead of 57 grams of a 50% aqueous solution of acrylamide.

[0227] Example 9: A blend was prepared by first neutralizing the Example 8 polymer latex with a 28% aqueous solution of ammonia to pH>9, and then mixing the resulting latex with the Example 2 additive in a weight ratio of 99.5:0.5.

[0228] Example 10: Additives were prepared by a free radical solution copolymerization process as described below. The monomer composition was 94DMAPMA:6MMA. The following aqueous polymer was prepared. A monomer premix was prepared by mixing 400 grams of water, 376 grams of dimethylaminopropyl methacrylamide (DMAPMA) and 24 grams of methyl methacrylate (MMA). Initiator A was prepared by mixing 4.57 grams of 70% tert-butyl hydroperoxide (TBHP) in 16 grams of water. Reducing agent A was prepared by dissolving 3.2 grams of isoascorbic acid in 80 grams of water. A three-liter reactor was charged with 720 grams of water, 5.6 grams of 0.15% iron (II) sulfate heptahydrate and 1.6 grams of 1% tetrasodium ethylenediaminetetraacetate (Na4-ETDA) under nitrogen blanketing and appropriate stirring, and then heated to 60°C. At 60°C, initiator A was added to the reactor. After about 2 minutes, the monomer premix was added to the reaction vessel in proportion over a period of 120 minutes, and the reducing agent A was added to the reactor in proportion over a period of 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 reactor was then cooled to 50° C. A solution of 1.43 g of 70% TBHP and 0.13 g of 30% sodium lauryl sulfate (SLS) in 20 g of water was added to the reactor. After 5 minutes, a solution of 0.84 g of isoascorbic acid in 20 g of water was added to the reactor. The reactor was maintained at 50° C. After 30 minutes, a solution of 1.43 g of 70% TBHP and 0.13 g of 30% sodium lauryl sulfate (SLS) in 20 g of water was added to the reactor. After 5 minutes, a solution of 0.84 g of isoascorbic acid in 20 g of water was added to the reactor. The reactor was maintained at 50° C. for about 30 minutes. Then, the reactor was cooled to room temperature. The polymer had a pH of 10.7, a solids content of 22.6%, and a viscosity of 270 cps.

[0229] Example 11: A blend was prepared by first neutralizing the Example 1 polymer latex with a 28% aqueous solution of ammonia to a pH>9, and then mixing the resulting latex with the Example 10 additive in a weight ratio of 99.5:0.5.

[0230] Paper Saturation and Evaluation

[0231] use 3MM CHR chromatography paper blank, GF / A borosilicate glass substrate or spunbond polyester substrate were used to evaluate paper properties. 3MM CHR is a 100% pure cellulose sheet without binders. GF / A is a 100% borosilicate glass sheet without a binder. The substrate is saturated using a dip and squeeze method, in which the substrate is placed in a pan containing a diluted saturant. The substrate is removed from the bath and fed through a pressure roller to squeeze out any excess material. The sheet is dried on a steam can at 99°C for one minute. The dry polymer content is controlled to 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 on dry paper and after aging for five minutes at 149°C. Glass sheet samples were tested after aging for 2 minutes at 191°C. Tensile properties were tested according to the 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 stretched at a rate of twelve inches / minute using a two-inch gauge length. After the samples were conditioned at 1% Wet tensile was evaluated after two minutes of immersion in a solution of X-100. The average of four samples was reported for each polymer.

[0232] The bursting strength was measured using a Mullen Bursting Tester. Dry bursting strength and wet bursting strength were tested according to TAPPI Standard T403-Burst Strength of Paper. Wet cracking was evaluated after two minutes of immersion in X-100 solution. An average of eight specimens was used, four with the wire side facing up and four with the felt side facing up.

[0233] Stiffness was tested according to TAPPI standard T543 - Bending resistance of paper (Gurley type tester). Test dry after soaking in X-100 solution for two minutes. Test samples in the cross-machine direction. Test two-inch by 2.5-inch samples with a 25-gram weight at 2 inches from the pivot point. Use an average of eight samples for each polymer.

[0234] result

[0235] 3MM CHR chromatography paper stock was used to evaluate the above example materials using the binder content (weight percent based on the total weight of the composition), curing temperature (°F) and time (minutes) shown in Table 1A, with the results of certain evaluations (as described above) shown in Table 1B.

[0236] Table 1A

[0237] Binder content Curing temperature Curing time Example 1 19.9 300 5 Example 3 21.3 300 5 Example 5 21.3 300 5 Example 6 21.0 300 5 Example 7 19.8 300 5 Example 8 19.0 300 5 Example 9 19.3 300 5

[0238] Table 1B

[0239]

[0240] 3MM CHR chromatography paper stock was used to evaluate the above example materials using the binder content (weight percent based on the total weight of the composition), curing temperature (°F) and time (minutes) shown in Table 2A, with the results of certain evaluations (as described above) shown in Table 2B.

[0241] Table 2A

[0242] Binder content Curing temperature Curing time Example 1 19.9 300 5 Example 3 21.3 300 5 Embodiment 11 21.3 300 5

[0243] Table 2B

[0244]

[0245] GF / A borosilicate glass substrates were used to evaluate the above example materials using binder content (weight percent based on the total weight of the composition), curing temperature (°F) and time (minutes), with the results of certain evaluations (as described above) being shown in Table 3.

[0246] Table 3

[0247]

[0248] Spunbond polyester substrates were used to evaluate the above example materials using binder content (weight percent based on the total weight of the composition), cure temperature (°F) and time (minutes), with the results of certain evaluations (as described above) being shown in Table 4.

[0249] Table 4

[0250]

[0251] Unless in the examples or otherwise clearly indicated or the context requires, all numerical values ​​of the amount of substance, reaction conditions, molecular weight, number of carbon atoms, etc. specified in this specification should be understood to be modified by the word "about". As used herein, the term "about" means that the value of a given amount is within ± 20% of the specified value. In other embodiments, the value is within ± 15% of the specified value. In other embodiments, the value is within ± 10% of the specified value. In other embodiments, the value is within ± 5% of the specified value. In other embodiments, the value is within ± 2.5% of the specified value. In other embodiments, the value is within ± 1% of the specified value. In other embodiments, the value is within the range of the clearly described values ​​that will be understood by those of ordinary skill in the art based on the disclosure provided herein, with a composition substantially similar to the literal amount described herein.

[0252] It should be understood that the upper and lower limits of the amounts, ranges, and ratios described herein can be independently combined, and any amount within the disclosed range is considered to provide a minimum or maximum value of a narrower range in an alternative embodiment (of course, provided that the minimum amount of the range must be lower than the maximum amount of the same range). Similarly, the ranges and amounts of each element of the subject matter disclosed herein can be used together with the ranges or amounts of any other element.

[0253] 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 may be made therein without departing from the scope of the subject matter. In this regard, the scope of the present invention is limited solely by the following claims.

Claims

1. A composition comprising fibers, a binder and an additive, wherein: The binder comprises a colloidal dispersion of a polymer comprising from 0.1 wt % to 25 wt % of acid-functional monomer units, based on the total weight of the polymer, wherein the colloidal dispersion of the polymer has a pH of from 5 to 12; and The additive comprises a water-soluble polymerization product of monomer units, and the water-soluble polymerization product of the monomer units comprises 5 wt % to 99 wt % of monomer units represented by at least one of the following general formulas A1 or A2, based on the total weight of the additive: Wherein independently, for each molecule of the monomer unit represented by at least one of the general formula A1 or A2: R 1 is H, CH3 or C2H5; R 2 is H or a C1-C4 alkyl group; R 3 is a C1-C6 alkyl group or a C1-C6 alkylene group; R 4 is H or a C1-C4 alkyl group; R 5 is H or a C1-C4 alkyl group; R 6 is H, CH3 or C2H5; R 7 is a C1-C6 alkyl group or a C1-C6 alkylene group; R 8 is H or a C1-C4 alkyl group; and R 9 is H or a C1-C4 alkyl group.

2. The composition according to claim 1, wherein independently, for each molecule of the monomer unit represented by at least one of the general formula A1 or A2: R 1 is H or CH3; R 2 is H or CH3; R 4 is H or CH3; R 5 is H or CH3; R 6 is H or CH3; R 8 is H or CH3; and R 9 It is H or CH3.

3. The composition according to claim 1 or claim 2, wherein independently, for each molecule of the monomeric unit represented by at least one of the general formula A1 or A2: R 3 is a C1-C4 alkyl group or a C1-C4 alkylene group; and R 7 It is a C1-C4 alkyl group or a C1-C4 alkylene group.

4. The composition according to any one of claims 1 to 3, wherein the binder is present in the composition in an amount of 5% to 60% by weight, based on the total dry weight of the composition. 5 . The composition according to claim 1 , wherein the composition comprises 0.01 to 30 parts of the additive relative to 100 parts of the binder.

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

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

8. The composition of any one of claims 1 to 7, wherein the colloidal dispersion of the polymer 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. The composition according to any one of claims 1 to 8, wherein the water-soluble polymerization reaction product of the monomer units comprises 20 to 95 wt% of monomer units represented by at least one of the general formula A1 or A2, based on the total weight of the additive.

10. The composition according to any one of claims 1 to 9, wherein the water-soluble polymerization reaction product of the monomer units comprises 1 wt % to 95 wt % of monomer units containing vinyl groups other than the monomer units represented by at least one of the general formula A1 or A2, based on the total weight of the additive. 11 . The composition according to claim 10 , wherein the vinyl group-containing monomer unit other than the monomer unit represented by at least one of the general formulas A1 or A2 comprises at least one acrylate monomer and / or at least one styrene butadiene monomer.

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 composition of claim 11, wherein the at least one acrylate comprises at least one monomer unit represented by the following general formula B: Wherein independently, for each molecule of the monomer unit: R 10 is H, CH3 or C2H5; R 11 is a poly(alkylene oxide) having a number average molecular weight of 88 g / mole to 1200 g / mole, wherein the poly(alkylene oxide) consists of repeating alkylene oxide units, and wherein each alkylene oxide unit independently has 2 to 4 carbons; and R 12 is H, a C1-C8 alkyl group or a C1-C8 alkylene group.

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

15. The composition of claim 13 or claim 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. A composition according to any one of claims 13 to 15, wherein R 12 It is H, CH3 or C2H5.

17. The composition according to any one of claims 1 to 9, wherein the water-soluble polymerization reaction product of the monomer units comprises 1 wt% to 95 wt% of monomer units represented by the following general formula B: Wherein independently, for each molecule of the monomer unit: R 10 is H, CH3 or C2H5; R 11 is a poly(alkylene oxide) having a number average molecular weight of 88 g / mole to 1200 g / mole, wherein the poly(alkylene oxide) consists of repeating alkylene oxide units, and wherein each alkylene oxide unit independently has 2 to 4 carbons; and R 12 is H, a C1-C8 alkyl group or a C1-C8 alkylene group.

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

19. The composition of claim 16 or claim 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. A composition according to any one of claims 17 to 19, wherein R 12 It is H, CH3 or C2H5.

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

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

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

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

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

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