Public Patent

Synthetic leather articles and methods for producing the same

Synthetic Leather Patent Ideas Abstract

Novel synthetic leather articles comprise a substrate and a coating applied to a surface of the substrate. The coating comprises a resin and a polymeric colorant. The polymeric colorant comprises a chromophore and an oligomeric constituent bound to the chromophore. Novel methods for producing synthetic leather articles using polymeric colorants are also provided.

Synthetic Leather Patent Ideas Claims

1. A synthetic leather article comprising: (a) a fibrous substrate having at least one surface, and (b) a coating on the surface of the substrate, the coating comprising: (i) a resin selected from the group consisting of polyurethane resins, polyurea resins, and combinations thereof, and (ii) a polymeric colorant, the polymeric colorant comprising a chromophore and an oligomeric constituent bound to the chromophore.

2. The article of claim 1, wherein the polymeric colorant is selected from the group of colorants conforming to structure (I) and structure (III) wherein R.sub.1 or R.sub.1-E is an organic chromophore, E is a linking moiety selected from the group consisting of nitrogen, oxygen, sulfur, a sulfite group, a sulfonamide group, and a carboxyl group, and n and m are independently selected from the group consisting of integers between 1 and 5; wherein R.sub.4 or R.sub.4(G).sub.h is an organic chromophore, G is selected from the group consisting of SO.sub.3.sup.- and CO.sub.2.sup.-, each R.sub.5 is independently selected from the group consisting of hydrogen, alkyl groups, and aryl groups, M is selected from the group consisting of nitrogen atoms and phosphorous atoms, h is an integer between 1 and 4, k is an integer between 0 and 5, j is an integer between 1 and 6, and the sum of k and j is equal to 4 when M is a nitrogen atom and 6 when M is a phosphorous atom; wherein each Z is an oligomeric constituent independently selected from the group consisting of: (i) oligomers comprising at least three monomers selected from the group consisting of C.sub.2-C.sub.20 alkyleneoxy groups, glycidol groups, and glycidyl groups, (ii) aliphatic oligomeric esters conforming to structure (II) wherein R.sub.2 and R.sub.3 are independently selected from the group consisting of hydrogen and C.sub.1-C.sub.10 alkyl groups, f is an integer between 1 and 10, and g is any positive integer or fraction between 1 and 20, and (iii) combinations of (i) and (ii); wherein each X is an end group independently selected from the group consisting of hydrogen, hydroxyl groups, thiol groups, amine groups, alkyl groups, aryl groups, alkyl ester groups, aryl ester groups, organic sulfonate groups, organic sulfate groups, and amide groups.

3. The article of claim 2, wherein the polymeric colorant conforms to structure (IV) wherein R.sub.6 is selected from the group consisting of hydrogen, alkyl groups, aryl groups, arylalkyl groups, alkylaryl groups, and oligomeric constituents having the structure -Z-X; wherein each R.sub.7 is independently selected from the group consisting of hydrogen, halogen atoms, alkyl groups, alkoxy groups, nitrile groups, nitro groups, amide groups, and sulfonamide groups, and q is an integer between 0 and 4; and R.sub.8 and R.sub.9 are independently selected from the group consisting of hydrogen, halogen atoms, tertiary amino groups, imine groups, cyano groups, pyridinium groups, ester groups, amide groups, sulfate groups, sulfonate groups, sulfide groups, sulfoxide groups, phosphine groups, phosphinium groups, phosphate groups, nitrile groups, mercapto groups, nitro groups, sulfone groups, acyl groups, azo groups, alkyl groups, alkoxy groups, aryl groups, aryloxy groups, arylalkyl groups, arylalkoxy groups, alkylaryl groups, and alkylaryloxy groups.

4. The article of claim 2, wherein the polymeric colorant conforms to structure (V) wherein R.sub.10 is selected from the group consisting of hydrogen, alkyl groups, aryl groups, arylalkyl groups, alkylaryl groups, and oligomeric constituents having the structure -Z-X; wherein each R.sub.11 is independently selected from the group consisting of hydrogen, halogen atoms, alkyl groups, alkoxy groups, nitrile groups, nitro groups, amide groups, and sulfonamide groups, and q is an integer between 0 and 4; wherein R.sub.12 is selected from the group consisting of aromatic groups and heteroatom-containing aromatic groups; wherein Q is hydrogen or a linking group selected from the group consisting of oxygen, sulfur, a carbonyl group, a sulfonyl group, a C.sub.1-C.sub.8 alkyl group, a C.sub.2-C.sub.8 alkene group, a p-phenylenediamine group, a m-hydroxybenzene group, and a m-di(C.sub.1-C.sub.4) alkoxybenzene; and wherein r is equal to 1 or 2.

5. The article of claim 2, wherein the polymeric colorant conforms to structure (VI) wherein R.sub.13 is selected from the group consisting of hydrogen, alkyl groups, aryl groups, arylalkyl groups, alkylaryl groups, and oligomeric constituents having the structure -Z-X; wherein R.sub.14 is selected from the group consisting of hydrogen, halogen atoms, alkyl groups, alkoxy groups, alkylamino groups, and arylamino groups; wherein R.sub.15 is selected from the group consisting of hydrogen, halogen atoms, alkyl groups, alkoxy groups, alkylamino groups, arylamino groups, cyano groups, nitro groups, amide groups, sulfite groups, and sulfonamide groups; and wherein each q is an integer between 0 and 4.

6. The article of claim 2, wherein the polymeric colorant conforms to structure (VII) wherein Y is selected from the group consisting of oxygen, sulfur, and --NR.sub.40, wherein R.sub.40 is selected from the group consisting of hydrogen, alkyl groups, and aryl groups; wherein R.sub.16 and R.sub.17 are independently selected from the group consisting of hydrogen, halogen atoms, hydroxyl groups, alkyl groups, alkenyl groups, and alkoxy groups; wherein R.sub.18, R.sub.19, R.sub.20, R.sub.21, and R.sub.22 are independently selected from the group consisting of hydrogen, halogen atoms, C.sub.1-C.sub.20 alkyl groups, C.sub.1-C.sub.20 alkylester groups, hydroxyl groups, thio groups, cyano groups, sulfonyl groups, sulfo groups, sulfato groups, aryl groups, nitro groups, carboxyl groups, C.sub.1-C.sub.20 alkoxy groups, C.sub.1-C.sub.20 alkylamino groups, acrylamino groups, C.sub.1-C.sub.20 alkylthio groups, C.sub.1-C.sub.20 alkylsulfonyl groups, C.sub.1-C.sub.20 alkylphenyl groups, phosphonyl groups, C.sub.1-C.sub.20 alkylphosphonyl groups, C.sub.1-C.sub.20 alkoxycarbonyl groups, phenylthio groups, and oligomeric constituents having the structure -E-(Z-X).sub.n; wherein at least one of R.sub.18, R.sub.19, R.sub.20, R.sub.21, and R.sub.22 is an oligomeric constituent having the structure -E-(Z-X).sub.n.

7. The article of claim 2, wherein the polymeric colorant conforms to structure (VIII) wherein R.sub.23 is selected from the group consisting of hydrogen, halogen atoms, hydroxyl groups, amine groups, nitro groups, and acetamide groups; wherein R.sub.24 and R.sub.25 are independently selected from the group consisting of hydrogen and hydroxyl groups; wherein A is selected from the group consisting of alkyl groups and aryl groups; and wherein B is selected from the group consisting of groups conforming to structure (XV) and structure (XVI) wherein R.sub.38 is selected from the group consisting of hydrogen, C.sub.1-C.sub.18 alkyl groups, and aryl groups; and wherein R.sub.39 is selected from the group consisting of aryl groups and oligomeric constituents having the structure -A-Z-X.

8. The article of claim 1, wherein the resin and the polymeric colorant are copolymerized.

9. The article of claim 1, wherein the substrate is a textile material selected from the group consisting of woven textiles, knit textiles, and non-wovens.

10. A method for producing a synthetic leather article, the method comprising the step of: (a) providing a resin or prepolymer, (b) providing a polymeric colorant, (c) mixing the polymer colorant and the resin or prepolymer to form a mixture, (d) applying the mixture obtained in step (c) onto a transfer substrate and heating the substrate to dry the substrate and form a resin coating thereon, (e) applying an adhesive onto the resin coating produced in step (d), (f) applying a fibrous backing substrate to the adhesive layer produced in step (e), (g) heating the assembly produced in step (f) to dry the assembly and bond the fibrous backing substrate to the adhesive layer, and (h) removing the transfer substrate from the assembly produced in (g) to produce a synthetic leather article.

11. The method of claim 10, wherein the resin or prepolymer is selected from the group consisting of polyurethane prepolymers, polyurethane resins, polyurea prepolymer, polyurea resins, and combinations thereof.

12. The method of claim 10, wherein the polymeric colorant is selected from the group of colorants conforming to structure (I) and structure (III) wherein R.sub.1 or R.sub.1-E is an organic chromophore, E is a linking moiety selected from the group consisting of nitrogen, oxygen, sulfur, a sulfite group, a sulfonamide group, and a carboxyl group, and n and m are independently selected from the group consisting of integers between 1 and 5; wherein R.sub.4 or R.sub.4(G).sub.h is an organic chromophore, G is selected from the group consisting of SO.sub.3.sup.- and CO.sub.2--, each R.sub.5 is independently selected from the group consisting of hydrogen, alkyl groups, and aryl groups, M is selected from the group consisting of nitrogen atoms and phosphorous atoms, h is an integer between 1 and 4, k is an integer between 0 and 5, j is an integer between 1 and 6, and the sum of k and j is equal to 4 when M is a nitrogen atom and 6 when M is a phosphorous atom; wherein each Z is an oligomeric constituent independently selected from the group consisting of: (i) oligomers comprising at least three monomers selected from the group consisting of C.sub.2-C.sub.20 alkyleneoxy groups, glycidol groups, and glycidyl groups, (ii) aliphatic oligomeric esters conforming to structure (II) wherein R.sub.2 and R.sub.3 are independently selected from the group consisting of hydrogen and C.sub.1-C.sub.10 alkyl groups, f is an integer between 1 and 10, and g is any positive integer or fraction between 1 and 20, and (iii) combinations of (i) and (ii); wherein each X is an end group independently selected from the group consisting of hydrogen, hydroxyl groups, thiol groups, amine groups, alkyl groups, aryl groups, alkyl ester groups, aryl ester groups, organic sulfonate groups, organic sulfate groups, and amide groups.

13. The method of claim 10, wherein the substrate is a textile material selected from the group consisting of woven textiles, knit textiles, and non-wovens.

14. A method for producing a synthetic leather article, the method comprising the step of: (a) providing a resin or prepolymer, (b) providing a polymeric colorant, (c) mixing the polymer colorant and the resin or prepolymer to form a mixture, (d) applying the mixture obtained in step (c) onto a fibrous backing substrate, (e) immersing the coated substrate obtained in step (d) in an aqueous solution to cure the resin or prepolymer and form a coating on the surface thereof, (f) removing the substrate from the aqueous solution, and (g) heating the substrate to dry the substrate and produce a synthetic leather article.

15. The method of claim 14, wherein the resin or prepolymer is selected from the group consisting of polyurethane prepolymers, polyurethane resins, polyurea prepolymer, polyurea resins, and combinations thereof.

16. The method of claim 14, wherein the polymeric colorant is selected from the group of colorants conforming to structure (I) and structure (III) wherein R.sub.1 or R.sub.1-E is an organic chromophore, E is a linking moiety selected from the group consisting of nitrogen, oxygen, sulfur, a sulfite group, a sulfonamide group, and a carboxyl group, and n and m are independently selected from the group consisting of integers between 1 and 5; wherein R.sub.4 or R.sub.4(G).sub.h is an organic chromophore, G is selected from the group consisting of SO.sub.3.sup.- and CO.sub.2.sup.-, each R.sub.5 is independently selected from the group consisting of hydrogen, alkyl groups, and aryl groups, M is selected from the group consisting of nitrogen atoms and phosphorous atoms, h is an integer between 1 and 4, k is an integer between 0 and 5, j is an integer between 1 and 6, and the sum of k and j is equal to 4 when M is a nitrogen atom and 6 when M is a phosphorous atom; wherein each Z is an oligomeric constituent independently selected from the group consisting of: (i) oligomers comprising at least three monomers selected from the group consisting of C.sub.2-C.sub.20 alkyleneoxy groups, glycidol groups, and glycidyl groups, (ii) aliphatic oligomeric esters conforming to structure (II) wherein R.sub.2 and R.sub.3 are independently selected from the group consisting of hydrogen and C.sub.1-C.sub.10 alkyl groups, f is an integer between 1 and 10, and g is any positive integer or fraction between 1 and 20, and (iii) combinations of (i) and (ii); wherein each X is an end group independently selected from the group consisting of hydrogen, hydroxyl groups, thiol groups, amine groups, alkyl groups, aryl groups, alkyl ester groups, aryl ester groups, organic sulfonate groups, organic sulfate groups, and amide groups.

17. The method of claim 14, wherein the substrate is a textile material selected from the group consisting of woven textiles, knit textiles, and non-wovens.

Synthetic Leather Patent Ideas Description

Related Patents
Leather Gloves
Crazy Patents
Clothing
Copyright 2006 - 2017 PubPat.net. All rights reserved