Back to results
US 4,729,767 AGranted
Amphoteric fatliquoring composition
AssigneeHenkel Kommanditgesellschaft auf Aktien
InventorsHans-Herbert Friese, Uwe Ploog, Gunter Uphues
Life of this patent
Estimating the term…
Abstract
A method and composition for fatliquoring during the leather and skin tanning process, in which an amphoteric surfactant is employed which is the condensation product of at least one C.sub.6-22 -fatty acid or corresponding ester with at least an aminoalkylalkanolamine followed by subsequent alkylation reaction with at least one vinylog compound.
Claims17
A method for fatliquoring leather skins during the tanning process consisting essentially of applying to said leather and skins a fatliquoring effective amount of at least one amphoteric surfactant consisting essentially of:
- the condensation product of at least one C.sub.6-22 -fatty acid or corresponding ester with at least one aminoalkyl-alkanolamine of the formula:
- H.sub.2 N--(CH.sub.2).sub.m --NH--(CH.sub.2).sub.n --OH
- wherein
- m is 2-6, and
- n is 2 or 3;
- followed by subsequent alkylati,on reaction with at least one vinylog compound.
3 more elements
Dependencies are inferred from the claim text.