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公开(公告)号：US12145853B2
公开(公告)日：2024-11-19
申请号：US17291027
申请日：2019-11-06
Applicant: RHODIA OPERATIONS
Abstract: Precipitated silica having large median particle size for use as reinforcing filler in elastomeric compositions as well as its method of manufacture. In particular, a precipitated silica characterised by a CTAB surface area SCTAB in the range from 70 to 350 m2/g; an amount WM of at least one metal M selected from elements of groups 3, 4 and 5 of at least 0.1 mol %; and a median particle size d50, measured by centrifugal sedimentation, such that: |d50|≥183×|RION|×|WM|−0.67×|SCTAB|+233 (I) wherein |d50| represents the numerical value of median particle size d50 measured by centrifugal sedimentation and expressed in nm; |RION|, the numerical value of the ionic radius of metal M expressed in nm; |SCTAB|, the numerical value of the CTAB surface area SCTAB expressed in m2/g; and |WM|, the numerical value of the percentage molar amount of the metal WM.
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公开(公告)号：US20240182312A1
公开(公告)日：2024-06-06
申请号：US18553723
申请日：2022-04-01
Applicant: RHODIA OPERATIONS
Inventor： Cédric Feral-Martin , Pascaline Lauriol-Garbey , Caroline Fayolle , Frédéric Colbeau-Justin
CPC classification number: C01B33/18 , B29D30/00 , C08K3/36 , C01P2004/51 , C01P2006/10 , C01P2006/12 , C01P2006/22 , C08K2201/003 , C08K2201/006
Abstract: A precipitated silica characterised by low silanol ratio. The precipitated silica is in particularly suitable for use as filler in elastomeric mixtures.
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公开(公告)号：US20250059055A1
公开(公告)日：2025-02-20
申请号：US18723400
申请日：2022-12-21
Applicant: Rhodia Operations
Inventor： Cédric Feral-Martin , Emmanuelle Allain Najman , Pascaline Lauriol-Garbey , Thomas Chaussee , Laurent Guy
IPC: C01B33/193 , B60C1/00 , C08K3/36
Abstract: The present invention relates to precipitated silica having small sized particles and to a process for its manufacture. The invention further relates to the use of precipitated silica as reinforcing filler in polymeric compositions, preferably elastomeric compositions.
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公开(公告)号：US20250051173A1
公开(公告)日：2025-02-13
申请号：US18723051
申请日：2022-12-21
Applicant: Rhodia Operations
Inventor： Cédric Feral-Martin , Emmanuelle Allain Najman , Pascaline Lauriol-Garbey , Thomas Chaussee , Laurent Guy
IPC: C01B33/193 , B60C1/00 , C08K3/36 , C08L9/06
Abstract: The present invention relates to precipitated silica having small sized particles and to a process for its manufacture. The invention further relates to the use of precipitated silica as reinforcing filler in polymeric compositions, preferably elastomeric compositions.
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