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US 2010/0040785 A1Published application
Method For Dry-Cleaning Leather
AssigneeClariant Finance (BVI) Limited
InventorFrank-Peter Lang
Life of this patent
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Abstract
The invention relates to a method for dry-cleaning leather, characterized by treating the leather with compound (I), wherein R1, R2, R3 and R4 are defined as in the description. The preferred solvent is tetraethoxyethane
Claims10
A process for dry cleaning of leather, which comprises the step of treating the leather with a compound of the formula (1)
- wherein
- A is (CH2)a or phenylene,
- R1, R2, R3 and R4 are identically or independently selected from the group consisting of:
- denote C1 to C13-n- and/or iso-alkyl, C5- or C6-cycloalkyl, phenyl-C1-C4-alkyl, C1-C9-alkylphenyl and phenyl, and a is an integer from 0 to 6.
1 more element
Dependencies are inferred from the claim text.