Leather finishing compositions comprising dioxolane derivatives
Uses of dioxolane derivatives in the finishing of leather are described. Also described, are leather finishing compositions comprising dioxolane derivatives and methods for treating leather.
1. A process for increasing penetration of leather finishing compositions into leather, said process comprising applying a leather finishing composition to a surface of the leather being treated, wherein the leather finishing composition comprises a dioxolane of formula I
where
R 1 and R 2 which are the same or different, are selected from the group consisting of hydrogen, alkyl, alkenyl, and phenyl, and
n is an integer from 1 to 5.
2. The process according to claim 1 , wherein in formula I, R 1 and R 2 are selected from the group consisting of methyl, ethyl, n-propyl, and isobutyl.
3. The process according to claim 1 , wherein in formula I, n is 1 or 2.
4. The process according to claim 1 , wherein the dioxolane is 2,2-dimethyl-1,3-dioxolane-4-methanol.
5. The process according to claim 1 , wherein the leather finishing composition further comprises at least one constituent selected from the group consisting of binders, colorants, auxiliary agents, varnishes, carriers, and biocides.
6. The process according to claim 1 , wherein the leather finishing composition further comprises at least one organic solvent selected from the group consisting esters, glycol ethers, alcohols, ketones, and aromatic hydrocarbons.
7. The process according to claim 1 , wherein the leather finishing composition further comprises a resin based on cellulose.
8. The process according to claim 7 , wherein the resin based on cellulose is cellulose acetobutyrate or nitrocellulose.
9. A process for treating leather, the process comprising applying a leather finishing composition to the surface of the leather being treated, wherein the leather finishing composition comprises a dioxolane of formula I
where
R 1 and R 2 which are the same or different, are selected from the group consisting of hydrogen, alkyl, alkenyl, and phenyl, and
n is an integer from 1 to 5.
10. The process according to claim 9 , wherein in formula I, R 1 and R 2 are selected from the group consisting of methyl, ethyl, n-propyl, and isobutyl.
11. The process according to claim 9 , wherein in formula I, n is 1 or 2.
12. The process according to claim 9 , wherein the dioxolane is 2,2-dimethyl-1,3-dioxolane-4-methanol.
13. The process according to claim 9 , wherein the leather finishing composition further comprises at least one constituent selected from the group consisting of binders, colorants, auxiliary agents, varnishes, carriers, and biocides.
14. The process according to claim 9 , wherein the leather finishing composition further comprises at least one organic solvent selected from the group consisting esters, glycol ethers, alcohols, ketones, and aromatic hydrocarbons.
15. The process according to claim 9 , wherein the leather finishing composition further comprises a resin based on cellulose.
16. The process according to claim 15 , wherein the resin based on cellulose is cellulose acetobutyrate or nitrocellulose.