1416058-A1 is referenced by 1 patents and cites 3 patents.

Use is claimed in the post-tanning of iron-tanned leather of condensation products of (A) sulfonated aromatics; (B) aldehydes or ketones; and optionally also (C) non-sulfonated aromatics, urea or urea derivatives with the proviso that the content of naphthalenesulfonic acid-formaldehyde condensates and phenol-formaldehyde condensates is below 25 (especially below 5)% of the total weight of condensation products. Independent claims are also included for: (1) leather of iron content 1-7 wt.% containing a condensation product of (A)-(C) as above; and (2) production of leather especially of softness above 15 units (IUP/36) obtained by post-tanning iron-tanned leather with condensation products of (A)-(C) as above.

Title
Condensation products for the retanning of iron-tanned leather
Application Number
EP20030023286 20031015
Publication Number
1416058 (A1)
Application Date
October 15, 2003
Publication Date
May 6, 2004
Inventor
Whiteman John D
US
Tegtmeyer Dietrich Dr
DE
Markgraf Kirsten Dr
DE
Kaplan Ahmet
DE
Kleban Martin Dr
DE
Assignee
Rohm & Haas
US
Bayer Chemicals
DE
IPC
C14C 03/20
C14C 03/04
C14C 03/00
C08G 14/00
C08G 08/00
C14C 03/20
C14C 03/04
C08G 14/08
C08G 08/18
C14C 03/18
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