(19)
(11)
EP 1 177 321 A1
(12)
(43)
Date of publication:
06.02.2002
Bulletin 2002/06
(21)
Application number:
00901424.2
(22)
Date of filing:
02.02.2000
(51)
International Patent Classification (IPC)
7
:
C14C
3/08
(86)
International application number:
PCT/BR0000/006
(87)
International publication number:
WO 0066/793
(
09.11.2000
Gazette 2000/45)
(84)
Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
Designated Extension States:
AL LT LV MK RO SI
(30)
Priority:
30.04.1999
BR 9901948
(71)
Applicant:
Rhodia Brasil Ltda
CEP-05804-902 Sao Paulo, SP (BR)
(72)
Inventor:
C LIO FERRAZ LOUREN O, Wagner
CEP-13083-080 Campinas, SP (BR)
(74)
Representative:
Prato, Roberto et al
STUDIO TORTA S.r.l., Via Viotti 9
10121 Torino
10121 Torino (IT)
(54)
APPLICATION OF CARBONYL COMPOUNDS IN THE PROCESS OF TANNING HIDES