EP 3717407 A1 20201007 - HIGHLY DISPERSIBLE PRECIPITATED SILICAS
Title (en)
HIGHLY DISPERSIBLE PRECIPITATED SILICAS
Title (de)
HOCH DISPERGIERBARE GEFÄLLTE KIESELSÄUREN
Title (fr)
ACIDES SILICIQUES PRÉCIPITÉS HAUTEMENT DISPERSABLES
Publication
Application
Priority
EP 2018054514 W 20180223
Abstract (en)
[origin: WO2019161912A1] The invention relates to highly dispersible precipitated silicas. The invention specifically relates to modified precipitated silica, characterized in that the particle size of at least 90% of its particles does not exceed 1 pm. The invention further relates to a process suitable for preparing said modified precipitated silicas and characterized by a combination of a homogeneous in-situ modification of the silica together with high-performance wet grinding. Further described is a process for reinforcing elastomers, wherein modified precipitated silica according to the invention is incorporated as a filler.
IPC 8 full level
C01B 33/193 (2006.01); C08K 3/36 (2006.01)
CPC (source: EP KR US)
C01B 33/193 (2013.01 - EP KR US); C08K 3/36 (2013.01 - US); C08K 9/06 (2013.01 - EP KR US); C01P 2004/62 (2013.01 - EP KR); C01P 2004/64 (2013.01 - EP KR); C01P 2006/12 (2013.01 - EP KR US); C01P 2006/22 (2013.01 - EP KR US); C01P 2006/40 (2013.01 - EP KR US); C01P 2006/80 (2013.01 - EP KR); C08K 3/36 (2013.01 - EP); C08K 2201/005 (2013.01 - EP KR US); C08K 2201/006 (2013.01 - EP KR US)
Citation (search report)
See references of WO 2019161912A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2019161912 A1 20190829; BR 112020017275 A2 20201222; CN 111757850 A 20201009; EP 3717407 A1 20201007; JP 2021514341 A 20210610; KR 20200111748 A 20200929; US 2021114888 A1 20210422
DOCDB simple family (application)
EP 2018054514 W 20180223; BR 112020017275 A 20180223; CN 201880089516 A 20180223; EP 18707891 A 20180223; JP 2020544496 A 20180223; KR 20207024162 A 20180223; US 201816971194 A 20180223