Ion triggerable, cationic polymers, a method of making same and items using same
View Patent ↗The present invention is directed to ion triggerable, water-dispersible cationic polymers. The present invention is also directed to a method of making ion triggerable, water-dispersible cationic polymers and their applicability as binder compositions. The present invention is further directed to fiber-containing fabrics and webs comprising ion triggerable, water-dispersible binder compositions and their applicability in water-dispersible personal care products, such as wet wipes.
1. A wet wipe comprising:
a fibrous material;
a binder composition for binding said fibrous material into an integral web, said binder composition comprising the polymerization product of a vinyl-functional cationic monomer, a hydrophobic vinyl monomer with a methyl side chain, and one or more hydrophobic vinyl monomers with alkyl side chains of 1 to 4 carbon atoms; and
said fibrous material being wetted by a wetting solution comprising an aqueous salt solution comprising about 0.3% to about 10% by weight of a mono or divalent salt such that said binder composition is insoluble in said wetting solution and said binder composition is dispersible in water containing up to 200 ppm Ca 2+ and/or Mg 2+ ions.
2. The wet wipe of claim 1 , wherein said mono or divalent salt has a concentration of about 0.5% to about 5% by weight.
3. The wet wipe of claim 1 , wherein said mono or divalent salt has a concentration of about 1.0% to about 4.0% by weight.
4. The wet wipe of claim 1 , wherein said mono or divalent salt is an alkali metal halide.
5. The wet wipe of claim 1 , wherein said mono or divalent salt is selected from NaCl, NaBr, KCl, NH 4 Cl, Na 2 SO 4 , ZnCl 2 , CaCl 2 , MgCl 2 , MgSO 4 , NaNO 3 , NaSO 4 CH 3 , and combinations thereof.
6. The wet wipe of claim 1 , wherein said mono or divalent salt is NaCl.
7. The wet wipe of claim 1 , wherein the vinyl-functional cationic monomer is selected from [2-(acryloxy)ethyl] dimethyl ammonium chloride, [2-(methacryloxy)ethyl] dimethyl ammonium chloride, [2-(acryloxy)ethyl] trimethyl ammonium chloride, [2-(methacryloxy)ethyl] trimethyl ammonium chloride, (3-acrylamidopropyl) trimethyl ammonium chloride, N,N-diallyldimethyl ammonium chloride, [2-(acryloxy)ethyl] dimethylbenzyl ammonium chloride, and [2-(methacryloxy)ethyl] dimethylbenzyl ammonium chloride.
8. The wet wipe of claim 1 , wherein the vinyl-functional cationic monomer is selected from precursor monomers selected from vinylpyridine, dimethylaminoethyl acrylate and dimethylaminoethyl methacrylate followed by quaternization of the polymer.
9. The wet wipe of claim 1 , wherein the vinyl-functional cationic monomer is selected from [2-(acryloxy)ethyl] dimethyl ammonium chloride, [2-(acryloxy)ethyl] dimethyl ammonium bromide, [2-(acryloxy)ethyl] dimethyl ammonium iodide, and [2-(acryloxy)ethyl] dimethyl ammonium methyl sulfate.
10. The wet wipe of claim 1 , wherein the vinyl-functional cationic monomer is selected from [2-(methacryloxy)ethyl] dimethyl ammonium chloride, [2-(methacryloxy)ethyl] dimethyl ammonium bromide, [2-(methacryloxy)ethyl] dimethyl ammonium iodide, and [2-(methacryloxy)ethyl] dimethyl ammonium methyl sulfate.
11. The wet wipe of claim 1 , wherein the vinyl-functional cationic monomer is selected from [2-(acryloxy)ethyl] trimethyl ammonium chloride, [2-(acryloxy)ethyl] trimethyl ammonium bromide, [2-(acryloxy)ethyl] trimethyl ammonium iodide, and [2-(acryloxy)ethyl] trimethyl ammonium methyl sulfate.
12. The wet wipe of claim 1 , wherein the vinyl-functional cationic monomer is selected from [2-(methacryloxy)ethyl] trimethyl ammonium chloride, [2-(methacryloxy)ethyl] trimethyl ammonium bromide, [2-(methacryloxy)ethyl] trimethyl ammonium iodide, and [2-(methacryloxy)ethyl] trimethyl ammonium methyl sulfate.
13. The wet wipe of claim 1 , wherein the vinyl-functional cationic monomer is selected from (3-acrylamidopropyl) trimethyl ammonium chloride, (3-acrylamidopropyl) trimethyl ammonium bromide, (3-acrylamidopropyl) trimethyl ammonium iodide, and (3-acrylamidopropyl) trimethyl ammonium methyl sulfate.
14. The wet wipe of claim 1 , wherein the vinyl-functional cationic monomer is selected from N,N-diallyldimethyl ammonium chloride, N,N-diallyldimethyl ammonium bromide, N,N-diallyldimethyl ammonium iodide, and N,N-diallyldimethyl ammonium methyl sulfate.
15. The wet wipe of claim 1 , wherein the vinyl-functional cationic monomer is selected from [2-(acryloxy)ethyl] dimethylbenzyl ammonium chloride, [2-(acryloxy)ethyl] dimethylbenzyl ammonium bromide, [2-(acryloxy)ethyl] dimethylbenzyl ammonium iodide, and [2-(acryloxy)ethyl] dimethylbenzyl ammonium methyl sulfate.
16. The wet wipe of claim 1 , wherein the vinyl-functional cationic monomer is selected from [2-(methacryloxy)ethyl] dimethylbenzyl ammonium chloride, [2-(methacryloxy)ethyl] dimethylbenzyl ammonium bromide, [2-(methacryloxy)ethyl] dimethylbenzyl ammonium iodide, and [2-(methacryloxy)ethyl] dimethylbenzyl ammonium methyl sulfate.
17. The wet wipe of claim 1 , wherein the hydrophobic vinyl monomer with alkyl side chains is selected from branched or linear alkyl vinyl ethers, vinyl esters, acrylamides, and acrylates.
18. A wet wipe comprising:
a fibrous material;
a binder composition for binding said fibrous material into an integral web, said binder composition comprising a composition having the structure:
wherein x=1 to about 15 mole percent; y=about 60 to about 99 mole percent; and z=0 to about 30 mole percent; Q is selected from C 1 –C 4 alkyl ammonium, quaternary C 1 –C 4 alkyl ammonium and benzyl ammonium; Z is selected from —O—, —COO—, —OOC—, —CONH—, and —NHCO—; R 1 , R 2 , R 3 are independently selected from hydrogen and methyl; R 4 is methyl; R 5 is selected from hydrogen, methyl, ethyl, butyl, ethylhexyl, decyl, dodecyl, hydroxyethyl, hydroxypropyl, polyoxyethylene, and polyoxypropylene; and
said fibrous material being wetted by a wetting solution comprising an aqueous salt solution comprising about 0.3% to about 10% by weight of a mono or divalent salt such that said binder composition is insoluble in said wetting solution and said binder composition is dispersible in water containing up to 200 ppm Ca 2+ and/or Mg 2+ ions.
19. The wet wipe of claim 18 , wherein said mono or divalent salt has a concentration of about 0.5% to about 5% by weight.
20. The wet wipe of claim 18 , wherein said mono or divalent salt has a concentration of about 1.0% to about 4.0% by weight.
21. The wet wipe of claim 18 , wherein said mono or divalent salt is an alkali metal halide.
22. The wet wipe of claim 18 , wherein said mono or divalent salt is selected from NaCl, NaBr, KCl, NH 4 Cl, Na 2 SO 4 , ZnCl 2 , CaCl 2 , MgCl 2 , MgSO 4 , NaNO 3 , NaSO 4 CH 3 , and combinations thereof.
23. The wet wipe of claim 18 , wherein said mono or divalent salt is NaCl.
24. The wet wipe of claim 18 , wherein said composition is the polymerization product of a cationic acrylate or methacrylate and one or more alkyl acrylates or methacrylates having the structure:
wherein x=1 to about 15 mole percent; y=about 60 to about 99 mole percent; and z=0 to about 30 mole percent; R 4 is methyl; and R 5 is selected from hydrogen, methyl, ethyl, butyl, ethylhexyl, decyl, dodecyl, hydroxyethyl, hydroxypropyl, polyoxyethylene, and polyoxypropylene.
25. The wet wipe of claim 18 , wherein said composition has the structure:
wherein x=1 to about 15 mole percent; y=about 85 to about 99 mole percent and R 4 is methyl.
26. The wet wipe of claim 25 , wherein x=about 3 to about 6 mole percent, y=about 94 to about 97 mole percent and R 4 is methyl.
27. A wet wipe comprising:
a fibrous material;
a binder composition for binding said fibrous material into an integral web, said binder composition comprising a composition having the structure:
wherein x=3 to about 6 mole percent; y=about 96 to about 97 mole percent and R 4 is methyl; and
said fibrous material being wetted by a wetting solution comprising an aqueous salt solution comprising about 1% to about 4% by weight NaCl.
28. A wet wipe comprising:
a fibrous material;
a binder composition for binding said fibrous material into an integral web, said binder composition comprising a composition having the structure:
wherein x=1 to about 15 mole percent; y=about 85 to about 99 mole percent and R 4 is methyl; and
said fibrous material being wetted by a wetting solution comprising an aqueous salt solution comprising about 0.3% to about 10% by weight of a mono or divalent salt such that said binder composition is insoluble in said wetting solution and said binder composition is dispersible in water containing up to 200 ppm Ca 2+ and/or Mg 2+ ions.
29. The wet wipe of claim 28 , wherein said mono or divalent salt has a concentration of about 0.5% to about 5% by weight.
30. The wet wipe of claim 28 , wherein said mono or divalent salt has a concentration of about 1.0% to about 4.0% by weight.
31. The wet wipe of claim 28 , wherein said mono or divalent salt is an alkali metal halide.
32. The wet wipe of claim 28 , wherein said mono or divalent salt is selected from NaCl, NaBr, KCl, NH 4 Cl, Na 2 SO 4 , ZnCl 2 , CaCl 2 , MgCl 2 , MgSO 4 , NaNO 3 , NaSO 4 CH 3 , and combinations thereof.
33. The wet wipe of claim 28 , wherein said mono or divalent salt is NaCl.
34. The wet wipe of claim 28 , wherein x=about 3 to about 6 mole percent, and y=about 94 to about 97 mole percent.