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：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：US11655151B2

公开(公告)日：2023-05-23

申请号：US16623259

申请日：2018-06-14

Applicant: RHODIA OPERATIONS

Inventor： Cyril Chomette ,  Valérie Buissette ,  Marc-David Braida ,  Thierry Le Mercier

IPC: C01B25/37 ,  C01B25/45 ,  C01B25/455

CPC classification number: C01B25/372 ,  C01B25/451 ,  C01B25/455 ,  C01P2002/72 ,  C01P2004/03 ,  C01P2004/61

Abstract: The present invention relates to a process for preparing an ammonium vanadium phosphate of formula (NH4)(VO2)(HPO4). It also relates to a process for preparing a vanadium orthophosphate VPO4.

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.