公开(公告)号：US12134564B2

公开(公告)日：2024-11-05

申请号：US17291030

申请日：2019-11-06

Applicant: RHODIA OPERATIONS

Inventor： Cyril Chomette ,  Frédéric Colbeau-Justin ,  Fabien Stocklouser ,  Cédric Boivin ,  Thomas Chaussee

IPC: C01B33/193 ,  B60C1/00 ,  C08K3/36 ,  C08L101/00 ,  B82Y40/00

Abstract: A precipitated silica having large particle size for use in tire applications. In particular, a precipitated silica characterised by a CTAB surface area SCTAB equal to or greater than 160 m2/g; a median particle size d50, measured by centrifugal sedimentation, such that |d50|>25000/|SCTAB|  (I) wherein |d50| represents the numerical value of the median particle size d50 measured by centrifugal sedimentation and expressed in nm and |SCTAB| represents the numerical value of the CTAB surface area SCTAB expressed in m2/g; and
an aluminium content not exceeding 4500 ppm.

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.

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.

公开(公告)号：US11958980B2

公开(公告)日：2024-04-16

申请号：US16772146

申请日：2018-12-20

Applicant: RHODIA OPERATIONS

Inventor： Emmanuelle Allain Najman ,  Pascaline Garbey ,  Cédric Feral-Martin ,  Laure Bertry ,  Laurent Guy ,  Thomas Chaussee ,  Stéphanie Croyeau

IPC: C09C1/30 ,  C08K3/36 ,  C08K9/04

CPC classification number: C09C1/3063 ,  C08K3/36 ,  C08K9/04 ,  C01P2006/12 ,  C08K2201/006

Abstract: A chemically modified precipitated silica characterised by the presence of alkyl moieties chemically bound to the silica and a process for its manufacture.

公开(公告)号：US12077444B2

公开(公告)日：2024-09-03

申请号：US17253197

申请日：2019-07-12

Applicant: RHODIA OPERATIONS

Inventor： Frédéric Colbeau-Justin ,  Cédric Boivin ,  Cyril Chomette ,  Thomas Chaussee ,  Laurent Guy

IPC: C08K3/36 ,  C01B33/193 ,  C08L9/06 ,  C08L23/22 ,  B60C1/00

CPC classification number: C01B33/193 ,  C08L9/06 ,  C08L23/22 ,  B60C1/0016 ,  B60C2200/04 ,  C01P2004/51 ,  C01P2006/12 ,  C08K3/36

Abstract: A precipitated silica for use in tire applications. In particular, a precipitated silica characterised by a CTAB surface area SCTAB greater than 140 m2/g; a width of the aggregate size distribution Ld, measured by centrifugal sedimentation, of at least 1.2; a pH of less than 5.5; and a carbon content of less than 1500 ppm.

公开(公告)号：US20250026649A1

公开(公告)日：2025-01-23

申请号：US18905025

申请日：2024-10-02

Applicant: RHODIA OPERATIONS

Inventor： Cyril Chomette ,  Frédéric Colbeau-Justin ,  Fabien Stocklouser ,  Cédric Boivin ,  Thomas Chaussee

IPC: C01B33/193 ,  B60C1/00 ,  B82Y40/00 ,  C08K3/36 ,  C08L101/00

Abstract: A precipitated silica having large particle size for use in tire applications. In particular, a precipitated silica characterised by a CTAB surface area SCTAB equal to or greater than 160 m2/g; a median particle size d50, measured by centrifugal sedimentation, such that ❘ "\[LeftBracketingBar]" d ⁢ 50 ⁢ ❘ "\[LeftBracketingBar]" > 25000 / ❘ "\[LeftBracketingBar]" S C ⁢ T ⁢ A ⁢ B ❘ "\[RightBracketingBar]" ( I ) wherein |d50| represents the numerical value of the median particle size d50 measured by centrifugal sedimentation and expressed in nm and |SCTAB| represents the numerical value of the CTAB surface area SCTAB expressed in m2/g; and an aluminium content not exceeding 4500 ppm.

公开(公告)号：US20240383761A1

公开(公告)日：2024-11-21

申请号：US18789072

申请日：2024-07-30

Applicant: RHODIA OPERATIONS

Inventor： Frédéric Colbeau-Justin ,  Cédric Boivin ,  Cyril Chomette ,  Thomas Chaussee ,  Laurent Guy

IPC: C01B33/193 ,  B60C1/00 ,  C08K3/36 ,  C08L9/06 ,  C08L23/22

Abstract: A precipitated silica for use in tire applications. In particular, a precipitated silica characterised by a CTAB surface area SCTAB greater than 140 m2/g; a width of the aggregate size distribution Ld, measured by centrifugal sedimentation, of at least 1.2; a pH of less than 5.5; and a carbon content of less than 1500 ppm.