Claims
- 1. A linear, water-dispersible, block sulfopolyester including:
- (i) 70 to 100 mol %, based on total moles of acid equivalents, of at least one difunctional dicarboxylic acid which is not a sulfomonomer;
- (ii) 2 to 15 mol %, based on total moles of acid and glycol equivalents, of at least one difunctional sulfomonomer containing at least one metal sulfonate group bonded to an aromatic ring, wherein the functional groups on said difunctional sulfomonomer are selected from the group consisting of esters, hydroxyl, or carboxyl groups to provide water-dispersibility to said sulfopolyester;
- (iii) from about 25 to 99.9 mol %, based on the mol % of hydroxyl equivalents of at least one polyethylene glycol having the structure:
- H(OCH.sub.2 CH.sub.2).sub.x --OH
- where x is an integer of from 2 to 6;
- (iv) 0.1 to 20 mol %, based on total moles of hydroxyl equivalents of at least one polyethylene glycol having the structure:
- H(OCH.sub.2 CH.sub.2).sub.y --OH
- where y is an integer of from 3 to about 500;
- wherein x<y;
- wherein the sulfopolyester contains substantially equal molar proportions of acid equivalents and glycol equivalents, and wherein said sulfopolyester has an inherent viscosity of at least 0.28 dL/g measured in a 60/40 parts by weight solution of pheno/tetrachloroethane at 25.degree. C. at a concentration of about 0.50 g of sulfopolyester in 100 ml of solvent.
- 2. The linear, water-dispersible, block sulfopolyester according to claim 1, having a dry Tg ranging from -50 to 20.degree. C., and comprising repeating units including:
- (i) 85 to 100 mol %, based on total moles of acid equivalents, of a dicarboxylic acid that is not a sulfomonomer;
- (ii) 5 to 10 mol %, based on total moles of acid and glycol equivalents, of at least one difunctional sulfomonomer containing at least one metal sulfonate group bonded to an aromatic ring wherein the functional groups are ester, hydroxyl, or carboxyl;
- (iii) from about 25 to 75 mol %, based on total mol % of hydroxyl equivalents, of the polyethylene glycol having the structure:
- H--(OCH.sub.2 CH.sub.2).sub.x --OH
- where x is 2;
- (iv) 0.25 to 5 mol %, based on total moles of hydroxyl equivalents, at least one polyethylene glycol having the structure:
- H--(OCH.sub.2 CH.sub.2).sub.y --OH
- where y is an integer of from 3 to about 500; and
- wherein x<y;
- said sulfopolyester containing substantially equal molar proportions of acid equivalents and glycol equivalents and wherein the inherent viscosity is 0.28 to 0.8 dL/g, measured in a 60/40 parts by weight solution of pheno/tetrachloroethane at 25.degree. C. at a concentration of about 0.50 g of sulfopolyester in 100 ml of solvent.
- 3. A low odor adhesive formulation comprising the linear, water-dispersible, block sulfopolyester according to claim 1.
- 4. A low odor adhesive formulation comprising the linear, water-dispersible, block sulfopolyester according to claim 2.
- 5. The adhesive formulation according to claim 3, further comprising at least one additive selected from the group consisting of oxidative stabilizers, fillers, plasticizers, elastomers, tackifiers, crystalline thermoplastic polymers, crystalline waxes, and mixtures thereof.
- 6. The adhesive formulation according to claim 5, where y is from 21 to 100.
- 7. The adhesive formulation according to claim 5, where y is from 3 to 19.
- 8. The adhesive formulation according to claim 5, wherein said at least one additive is selected from the group consisting of thermoplastic polymers and crystalline waxes.
- 9. The adhesive formulation according to claim 5, further comprising a biodegradable polyester physically or reactively blended therewith.
- 10. The adhesive formulation according to claim 5, wherein said adhesive formulation is a hot-melt adhesive formulation.
- 11. The adhesive formulation according to claim 5, wherein said adhesive formulation is a pressure-sensitive adhesive formulation.
- 12. The adhesive formulation according to claim 5, wherein said adhesive formulation is a hot-melt, pressure-sensitive adhesive formulation.
- 13. The adhesive formulation according to claim 4, wherein said sulfopolyester has a Tg of from -50 to 20.degree. C., and RBSP of at least 80.degree. C.
- 14. The adhesive formulation according to claim 13, wherein the difference between the Tg and RBSP of said sulfopolyester is at least 90.degree. C.
- 15. An article of manufacture comprising at least one substrate and having applied thereto an adhesive composition comprising the sulfopolyester composition according to claim 2.
- 16. The article of manufacture according to claim 15, wherein said at least one substrate is selected from the group consisting of plastics, fabrics, metals, wood, and wood-derived products.
- 17. The article of manufacture according to claim 15, wherein said sulfopolyester composition further comprises at least one additive selected from the group consisting of oxidative stabilizers, fillers, plasticizers, tackifiers, crystalline thermoplastic polymers, crystalline waxes, and mixtures thereof.
- 18. The article of manufacture according to claim 15, comprising a first substrate having at least a portion of one surface thereof contacted with said adhesive composition and a second substrate having at least a portion of one surface thereof contacting said adhesive composition in contact with said first substrate, and wherein said first and second substrates are independently selected from the group consisting of plastics, fabrics, metals, wood, and wood-derived products.
- 19. A linear, water-dispersible, block sulfopolyester comprising repeating units of sulfomonomers containing at least one sulfonate group attached to an aromatic ring and polyethylene glycol, the improvement comprising having at least two different polyethylene glycol units of differing molecular weights, wherein at least one polyethylene glycol unit has the structure:
- H(OCH.sub.2 CH.sub.2).sub.y --OH
- where y is an integer of from 3 to about 500;
- said sulfopolyester characterized by being a low odor, linear, water-dispersible sulfopolyester having a dry Tg ranging from -50 to 20.degree. C., an inherent viscosity of at least 0.28 dL/g as measured in a 60/40 parts by weight solution of phenol/tetrachloroethane at 25.degree. C. at a concentration of 0.50 g of polymer in 100 mol of solution.
- 20. The sulfopolyester according to claim 19, wherein the difference between the Tg and RBSP of said sulfopolyester is at least 90.degree. C.
- 21. The linear, water-dispersible, block sulfopolyester of claim 1, wherein the inherent viscosity ranges from 0.4 to 1.1 dL/g.
- 22. The linear, water-dispersible, block sulfopolyester of claim 1, wherein is 20 or greater.
- 23. The linear, water-dispersible, block sulfopolyester of claim 1, wherein the component (iv) polyethylene glycol is a high molecular weight polyethylene glycol with a molecular weight of at least 900.
- 24. The linear, water-dispersible, block sulfopolyester of claim 23, wherein the molecular weight of said high molecular weight polyethylene glycol is at least 1000.
- 25. The linear, water-dispersible, block sulfopolyester of claim 2, wherein the Tg is less than 0.degree.C.
- 26. An article of manufacture comprising at least one substrate and having applied thereto an adhesive composition comprising the linear, water-dispersible, block sulfopolyester according to claim 1.
- 27. An article of manufacture comprising at least one substrate and having applied thereto an adhesive composition comprising the linear, water-dispersible, block sulfopolyester according to claim 19.
- 28. A linear, water-dispersible, block sulfopolyester including:
- (i) 70 to 100 mol%, based on total moles of acid equivalents, of at least one difunctional dicarboxylic acid which is not a sulfomonomer;
- (ii) 2 to 15 mol%, based on total moles of acid and glycol equivalents, of at least one difunctional sulfomonomer containing at least one metal sulfonate group bonded to an aromatic ring, wherein the functional groups on said difunctional sulfomonomer are selected from the group consisting of esters, hydroxyl, or carboxyl groups to provide water-dispersibility to said sulfopolyester;
- (iii) from about 25 to 99.9 mol%, based on the mol% of hydroxyl equivalents of at least one polyethylene glycol having the structure:
- H(OCH.sub.2 CH.sub.2).sub.x --OH
- where x is an integer of from 2 to 6; (iv) 0.1 to 5 mol%, based on total moles of hydroxyl equivalents of at least one polyethylene glycol having the structure:
- H(OCH.sub.2 CH.sub.2).sub.y --OH
- where is an integer of from 3 to 500;
- wherein x<y;
- wherein the sulfopolyester contains substantially equal molar proportions of acid equivalents and glycol equivalents, and wherein said sulfopolyester has an inherent viscosity of at least 0.1 dL/g measured in a 60/40 parts by weight solution of phenol/tetrachloroethane at 25.degree.C at concentration of about 0.50 g of sulfopolyester in 100 ml of solvent.
- 29. The linear, water-dispersible, block sulfopolyester of claim 28, wherein y is 20 or greater.
- 30. The linear, water-dispersible, block sulfopolyester of claim 28, wherein the component (iv) polyethylene glycol is a high molecular weight polyethylene glycol with a molecular weight of at least 900.
- 31. The linear, water-dispersible, block sulfopolyester of claim 30, wherein the molecular weight of said high molecular weight polyethylene glycol is at least 1000.
- 32. The linear, water-dispersible, block sulfopolyester of claim 28, wherein the Tg ranges from 30-60.degree.C.
- 33. The linear, water-dispersible, block sulfopolyester of claim 32, wherein the Tg ranges from 35-50.degree.C.
- 34. The linear, water-dispersible, block sulfopolyester of claim 28, wherein the inherent viscosity is at least 0.25 dL/g.
- 35. The linear, water-dispersible, block sulfopolyester of claim 34, wherein the inherent viscosity is at least 0.30 dL/g.
- 36. A fibrous article sized with a sizing composition comprising a linear, water-dispersible, block sulfopolyester according to claim 28.
CROSS-REFERENCE TO RELATED APPLICATIONS
This Application is a Continuation-in-Part of U.S. application Ser. No. 08/651,246, filed May 21, 1996 now U.S. Pat. No.5,709,940, which is a File Wrapper Continuation of U.S. application Ser. No. 08/328,744, filed Oct. 24, 1994, now abandoned.
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Continuations (1)
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328744 |
Oct 1994 |
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Continuation in Parts (1)
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651246 |
May 1996 |
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