Claims
- 1. A polymeric dye comprising a dye covalently bound to a carboxyl-containing polymer, the polymeric dye being fiber-reactive.
- 2. A polymeric dye according to claim 1 wherein the carboxyl-containing polymer is selected from the group consisting of poly(acrylic acid) and copolymers that contain acrylic acid, methacrylic acid, maleic acid, maleic anhydride, itaconic acid, and itaconic anhydride.
- 3. A polymeric dye according to claim 1 wherein the carboxyl-containing polymer is poly(acrylic acid).
- 4. A polymeric dye according to claim 1 wherein the carboxyl-containing polymer is a copolymer of butadiene/maleic anhydride.
- 5. A method of synthesizing a fiber-reactive polymeric dye comprising:
dispersing a carboxyl-reactive dye and a carboxyl-containing polymer in a suitable solvent; and heating the reaction solution such that the dye and the polymer react together by covalent bonding to give a fiber-reactive polymeric dye.
- 6. A method according to claim 5 which comprises a further step of reacting a reactive monomer with a dye comprising aromatic hydroxyl or amine groups to synthesize the carboxyl-reactive dye.
- 7. A method according to claim 6 wherein the reactive monomer is selected from the group consisting of glycidyl methacrylate, acryloyl chloride, methacryloyl chloride, maleic anhydride, and itaconic anhydride.
- 8. A method according to claim 5 which comprises a further step of reacting poly(vinyl alcohol) and a commercially available reactive dye to synthesize a composite dye-PVA polymer as the carboxyl-reactive dye.
- 9. A method according to claim 5 wherein the carboxyl-containing polymer is selected from the group consisting of poly(acrylic acid) and copolymers that contain acrylic acid, methacrylic acid, maleic acid, maleic anhydride, itaconic acid, and itaconic anhydride.
- 10. A polymeric dye according to claim 5 wherein the carboxyl-containing polymer is poly(acrylic acid).
- 11. A polymeric dye according to claim 5 wherein the carboxyl-containing polymer is a copolymer of butadiene/maleic anhydride.
- 12. A web comprising a covalently attached polymeric dye.
- 13. A web according to claim 9 wherein the polymeric dye comprises a dye covalently bound to a carboxyl-containing polymer.
- 14. A web according to claim 13 wherein the carboxyl-containing polymer is selected from the group consisting of poly(acrylic acid) and copolymers that contain acrylic acid, methacrylic acid, maleic acid, maleic anhydride, itaconic acid, and itaconic anhydride.
- 15. A web according to claim 13 wherein the carboxyl-containing polymer is poly(acrylic acid).
- 16. A web according to claim 13 wherein the carboxyl-containing polymer is a copolymer of butadiene/maleic anhydride.
- 17. A dye preparation comprising a solution or suspension of a fiber-reactive polymeric dye, the polymeric dye comprising a dye covalently bound to a carboxyl-containing polymer.
- 18. A dye preparation according to claim 17 wherein the carboxyl-containing polymer is selected from the group consisting of poly(acrylic acid) and copolymers that contain acrylic acid, methacrylic acid, maleic acid, maleic anhydride, itaconic acid, and itaconic anhydride.
- 19. A dye preparation according to claim 17 wherein the carboxyl-containing polymer is poly(acrylic acid).
- 20. A dye preparation according to claim 17 wherein the carboxyl-containing polymer is a copolymer of butadiene/maleic anhydride.
Parent Case Info
[0001] This application claims the benefit of co-pending Provisional patent application Serial No. 60/185,260, filed on Feb. 28, 2000, the entire disclosure of which is incorporated herein by reference.
Provisional Applications (1)
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Number |
Date |
Country |
|
60185260 |
Feb 2000 |
US |
Continuations (1)
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Number |
Date |
Country |
Parent |
09795855 |
Feb 2001 |
US |
Child |
10314577 |
Dec 2002 |
US |