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    1.
    发明专利
    未知

    公开(公告)号：FR2763581B1

    公开(公告)日：1999-07-23

    申请号：FR9706369

    申请日：1997-05-26

    Applicant: RHODIA CHIMIE SA

    Inventor： CHEVALLIER YVONICK ,  COCHET PHILIPPE ,  FOURRE PATRICK

    IPC: C01B33/193 ,  C08K3/36 ,  C09C1/28

    Abstract: The invention relates to a novel process for the preparation of precipitated silica which can be used as a reinforcing filler for elastomers. The invention also relates to novel precipitated silicas in the form of powder, granules or, preferably, substantially spherical beads, these silicas being characterized in that they have a BET specific surface of between 185 and 250 m2/g, a CTAB specific surface of between 180 and 240 m2/g, and a pore distribution such that the pore volume V2 made up of the pores with a diameter of between 175 and 275 Å represents less than 50% of the pore volume V1 made up of the pores with diameters of less than or equal to 400 Å, a pore volume (Vd1), made up of the pores with a diameter of less than 1 μm, of greater than 1.65 cm3/g, a fineness value (F.V.) of between 70 and 100 Å, and a content of fines (τf), after deagglomerability with ultrasound, of at least 50%.

    2.
    发明专利
    未知

    公开(公告)号：ES2198055T3

    公开(公告)日：2004-01-16

    申请号：ES98925723

    申请日：1998-05-15

    Applicant: RHODIA CHIMIE SA

    Inventor： CHEVALLIER YVONNICK ,  COCHET PHILIPPE ,  FOURRE PATRICK

    IPC: C01B33/193 ,  C08K3/36 ,  C09C1/28

    Abstract: The invention relates to a novel process for the preparation of precipitated silica which can be used as a reinforcing filler for elastomers. The invention also relates to novel precipitated silicas in the form of powder, granules or, preferably, substantially spherical beads, these silicas being characterized in that they have a BET specific surface of between 185 and 250 m2/g, a CTAB specific surface of between 180 and 240 m2/g, and a pore distribution such that the pore volume V2 made up of the pores with a diameter of between 175 and 275 Å represents less than 50% of the pore volume V1 made up of the pores with diameters of less than or equal to 400 Å, a pore volume (Vd1), made up of the pores with a diameter of less than 1 μm, of greater than 1.65 cm3/g, a fineness value (F.V.) of between 70 and 100 Å, and a content of fines (τf), after deagglomerability with ultrasound, of at least 50%.

    3.
    发明专利
    未知

    公开(公告)号：PT917519E

    公开(公告)日：2003-11-28

    申请号：PT98925723

    申请日：1998-05-15

    Applicant: RHODIA CHIMIE SA

    Inventor： FOURRE PATRICK ,  COCHET PHILIPPE ,  CHEVALLIER YVONNICK

    IPC: C01B33/193 ,  C08K3/36 ,  C09C1/28

    Abstract: The invention relates to a novel process for the preparation of precipitated silica which can be used as a reinforcing filler for elastomers. The invention also relates to novel precipitated silicas in the form of powder, granules or, preferably, substantially spherical beads, these silicas being characterized in that they have a BET specific surface of between 185 and 250 m2/g, a CTAB specific surface of between 180 and 240 m2/g, and a pore distribution such that the pore volume V2 made up of the pores with a diameter of between 175 and 275 Å represents less than 50% of the pore volume V1 made up of the pores with diameters of less than or equal to 400 Å, a pore volume (Vd1), made up of the pores with a diameter of less than 1 μm, of greater than 1.65 cm3/g, a fineness value (F.V.) of between 70 and 100 Å, and a content of fines (τf), after deagglomerability with ultrasound, of at least 50%.

    4.
    发明专利
    未知

    公开(公告)号：AT244683T

    公开(公告)日：2003-07-15

    申请号：AT98925723

    申请日：1998-05-15

    Applicant: RHODIA CHIMIE SA

    Inventor： CHEVALLIER YVONNICK ,  COCHET PHILIPPE ,  FOURRE PATRICK

    IPC: C01B33/193 ,  C08K3/36 ,  C09C1/28

    Abstract: The invention relates to a novel process for the preparation of precipitated silica which can be used as a reinforcing filler for elastomers. The invention also relates to novel precipitated silicas in the form of powder, granules or, preferably, substantially spherical beads, these silicas being characterized in that they have a BET specific surface of between 185 and 250 m2/g, a CTAB specific surface of between 180 and 240 m2/g, and a pore distribution such that the pore volume V2 made up of the pores with a diameter of between 175 and 275 Å represents less than 50% of the pore volume V1 made up of the pores with diameters of less than or equal to 400 Å, a pore volume (Vd1), made up of the pores with a diameter of less than 1 μm, of greater than 1.65 cm3/g, a fineness value (F.V.) of between 70 and 100 Å, and a content of fines (τf), after deagglomerability with ultrasound, of at least 50%.

    SILICE PRECIPITEE UTILISABLE COMME CHARGE RENFORCANTE POUR ELASTOMERES
    5.
    发明专利
    SILICE PRECIPITEE UTILISABLE COMME CHARGE RENFORCANTE POUR ELASTOMERES 未知

    公开(公告)号：CA2261618C

    公开(公告)日：2003-04-29

    申请号：CA2261618

    申请日：1998-05-15

    Applicant: RHODIA CHIMIE SA

    Inventor： COCHET PHILIPPE ,  FOURRE PATRICK ,  CHEVALLIER YVONICK

    IPC: C01B33/193 ,  C08K3/36 ,  C09C1/28

    Abstract: L'invention concerne un nouveau procédé de préparation de silice précipitée utilisable comme charge renforçante pour élastomères. Elle est aussi relativ e à de nouvelles silices précipitées sous forme de poudre, de granulés ou, de préférence, de billes sensiblement sphériques, ces silices étant caractérisé es par le fait qu'elles possèdent: une surface spécifique BET comprise entre 18 5 et 250 m2/g, une surface spécifique CTAB comprise entre 180 et 240 m2/g, une distribution poreuse telle que le volume poreux V2 constitué par les pores dont le diamètre est compris entre 175 et 275 .ANG. représente moins de 50 % du volume poreux V1 constitué par les pores de diamètres inférieurs ou égaux à 400 .ANG., un volume poreux (Vd1) constitué par les pores de diamètre inférieur à 1 .mu.m supérieur à 1,65 cm3/g, un indice de finesse (I.F.) compris entre 70 et 100 .ANG., un taux de fines (f), après désagglomération aux ultra-sons, d'au moins 50 %.

    6.
    发明专利
    未知

    公开(公告)号：FR2763581A1

    公开(公告)日：1998-11-27

    申请号：FR9706369

    申请日：1997-05-26

    Applicant: RHODIA CHIMIE SA

    Inventor： CHEVALLIER YVONICK ,  COCHET PHILIPPE ,  FOURRE PATRICK

    IPC: C01B33/193 ,  C08K3/36 ,  C09C1/28

    Abstract: The invention concerns a novel method for preparing precipitated silica used as reinforcing filler for elastomers. It also concerns novel silica precipitates in the form of powder, granules or, preferably, substantially spherical balls, said silica being characterised in that they contain: a BET specific surface area ranging between 185 and 250 m /g; a CTAB specific surface area ranging between 180 and 240 m /g; a porous distribution such that the porous volume V2 consisting of pores with diameter ranging between 175 and 275 ANGSTROM represents less than 50 % of the porous volume V1 consisting of pores with diameter not more than 400 ANGSTROM ; a porous volume (Vd1) consisting of pores with diameter less than 1 mu m more than 1.65 cm /g; a fineness number (I.F) between 70 and 100 ANGSTROM ; a fines contents ( tau f) after ultrasound disintegration, of at least 50 %.

    PRECIPITATED SILICA USED AS STRENGTHENING FILLER OF ELASTOMERS
    8.
    发明专利
    PRECIPITATED SILICA USED AS STRENGTHENING FILLER OF ELASTOMERS 未知

    公开(公告)号：PL193722B1

    公开(公告)日：2007-03-30

    申请号：PL33132798

    申请日：1998-05-15

    Applicant: RHODIA CHIMIE SA

    Inventor： CHEVALLIER YVONNICK ,  COCHET PHILIPPE ,  FOURRE PATRICK

    IPC: C01B33/193 ,  C08K3/36 ,  C09C1/28

    Abstract: The invention relates to a novel process for the preparation of precipitated silica which can be used as a reinforcing filler for elastomers. The invention also relates to novel precipitated silicas in the form of powder, granules or, preferably, substantially spherical beads, these silicas being characterized in that they have a BET specific surface of between 185 and 250 m2/g, a CTAB specific surface of between 180 and 240 m2/g, and a pore distribution such that the pore volume V2 made up of the pores with a diameter of between 175 and 275 Å represents less than 50% of the pore volume V1 made up of the pores with diameters of less than or equal to 400 Å, a pore volume (Vd1), made up of the pores with a diameter of less than 1 μm, of greater than 1.65 cm3/g, a fineness value (F.V.) of between 70 and 100 Å, and a content of fines (τf), after deagglomerability with ultrasound, of at least 50%.

    9.
    发明专利
    未知

    公开(公告)号：ID21812A

    公开(公告)日：1999-07-29

    申请号：ID990018

    申请日：1998-05-15

    Applicant: RHODIA CHIMIE SA

    Inventor： CHEVALLIER YVONNICK ,  COCHET PHILIPPE ,  FOURRE PATRICK

    IPC: C01B33/193 ,  C08K3/36 ,  C09C1/28

    Abstract: The invention relates to a novel process for the preparation of precipitated silica which can be used as a reinforcing filler for elastomers. The invention also relates to novel precipitated silicas in the form of powder, granules or, preferably, substantially spherical beads, these silicas being characterized in that they have a BET specific surface of between 185 and 250 m2/g, a CTAB specific surface of between 180 and 240 m2/g, and a pore distribution such that the pore volume V2 made up of the pores with a diameter of between 175 and 275 Å represents less than 50% of the pore volume V1 made up of the pores with diameters of less than or equal to 400 Å, a pore volume (Vd1), made up of the pores with a diameter of less than 1 μm, of greater than 1.65 cm3/g, a fineness value (F.V.) of between 70 and 100 Å, and a content of fines (τf), after deagglomerability with ultrasound, of at least 50%.

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