Bleaching and dyeing; fluid treatment and chemical modification – Treatment of hides – skins – feathers and animal tissues – Tanning
Reexamination Certificate
2003-02-21
2009-12-29
Douyon, Lorna M (Department: 1796)
Bleaching and dyeing; fluid treatment and chemical modification
Treatment of hides, skins, feathers and animal tissues
Tanning
C008S09410R, C008S094210, C510S275000, C427S389000, C252S008570, C525S183000, C525S329700
Reexamination Certificate
active
07637961
ABSTRACT:
An oligomeric composition containing oligomers and at least one stabilizing component is provided. An aqueous dispersion composition containing the oligomeric composition is useful for treating tanned leather to provide leather with increased softness or strength. Also provided are a method of treating tanned leather using the composition and an article containing the treated leather.
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Chiou Shang-Jaw
Dougherty Robert Francis
El A'mma Anton Georges
Cantor & Colburn LLP
Douyon Lorna M
Jessum Kim R.
Nguyen Tri V
Rohm and Haas Company
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