Concessão da patente
#16.1
11/27/2018
RPI 2499
Application data
Number
PI0909518Type
Filing
Publication
PCT
EP2009052919 Patent grant document available
We have the complete official document for this filing, as published by INPI.
Access the documentThe patent was granted on 11/27/2018 and is in force until 03/12/2029. Until then, no one may make, use or sell the invention in Brazil without the owner's authorisation.
Protection valid until:03/12/2029
Latest action published by the INPI: 11/27/2018. We update with every new RPI gazette, published weekly.
Applicants
ARCHROMA IP GMBH
CH
CLARIANT FINANCE ( BVI ) LIMITED
VG
Inventors
A. J. (pessoa física)
CH
C. K. (pessoa física)
FR
D. P. (pessoa física)
CH
IPC Classification
Priority claims
EP
08 102906.8 · 03/26/2008
EP
08 171223.4 · 12/10/2008
EP
08 171480.0 · 12/12/2008
Abstract
COMPOSTOS BRANQUEADORES ÃTICOS, USO DOS MESMOS E PROCESSOS PARA A PREPARAÃÃO DOS REFERIDOS COMPOSTOS E PARA O BRANQUEAMENTO ÃTICO DE PAPEL.A presente invenção refere-se a sais mistos de branqueadores óticos de fórmula (1) na qual M representa uma mistura de Mg2+ com outro cátion, que proporciona efeitos superiores de branqueamento ótico quando aplicados à superfÃcie de papel.
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