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    PROCESO CONTINUO PARA LA PRODUCCION DE GRANULADOS DE CAUCHO QUE CONTIENEN CARGAS.
    13.
    发明专利
    PROCESO CONTINUO PARA LA PRODUCCION DE GRANULADOS DE CAUCHO QUE CONTIENEN CARGAS. 未知

    公开(公告)号：ES2285042T3

    公开(公告)日：2007-11-16

    申请号：ES03103814

    申请日：2003-10-15

    Applicant: DEGUSSA

    Inventor： SCHMITT MATTHIAS ,  GORL UDO DR ,  STOBER REINHARD DR

    IPC: C08J3/03 ,  C08J3/205 ,  C08J3/16 ,  C08J3/215 ,  C09C1/00 ,  C09C3/10 ,  C09D11/00

    Abstract: Proceso para la producción continua de granulados de caucho que contienen cargas basados en emulsiones o látex de caucho acuosos(as), caracterizado porque a) una preparación acuosa de cargas que contiene agentes de precipitación paralelamente con una emulsión acuosa de caucho o un látex se introduce en un reactor, se coagula el caucho sobre la superficie de las carga, y la suspensión precipitada así producida se retira continuamente del reactor. b) Se realiza la alimentación de las materias primas al reactor por tuberías separadas. c) Se realiza la reacción en un reactor tubular que opera continuamente o en varios reactores tubulares dispuestos en serie (cascada) que operan continuamente. d) Se realiza la coagulación del látex por medio de una disminución del pH y/o la adición de una sal soluble en agua de metales de los Grupos IIa, IIb, IIIa, o VIII del Sistema Periódico de los Elementos.

    GRANULOS DE CAUCHO QUE CONTIENEN CARGAS D ESILICATO Y/O OXIDO.
    15.
    发明专利
    GRANULOS DE CAUCHO QUE CONTIENEN CARGAS D ESILICATO Y/O OXIDO. 未知

    公开(公告)号：ES2252367T3

    公开(公告)日：2006-05-16

    申请号：ES02018990

    申请日：2002-08-27

    Applicant: DEGUSSA

    Inventor： GORL UDO DR ,  SCHMITT MATTHIAS ,  STOBER REINHARD DR

    IPC: C08J3/12 ,  C08J3/215 ,  C08K3/36 ,  C08K9/06 ,  C08L21/00 ,  C08J3/16 ,  C08L21/02 ,  C09C1/30 ,  C09C3/12

    Abstract: Procedimiento para la fabricación de polvos o gránulos que contienen cargas de silicato y/u óxido basados en emulsiones acuosas de caucho o látex, caracterizado porque: a) se suspende en agua la carga de silicato y/u óxido, uno o más agentes de hidrofobización de la clase de polisiloxano en cantidades de 0,5 a 7%, referidas a la carga, uno o más tensioactivos no iónicos en cantidades de 0,1 a 2%, referidas a la carga, a 10 a 60ºC, y se ajusta a este respecto una densidad de suspensión de 0,5 a 15%, b) a continuación, se añade la emulsión de caucho-látex con agitación a la suspensión de carga, c) se reduce el valor de pH de la mezcla en agua mediante un ácido, preferiblemente ácido sulfúrico o sulfato de aluminio, a un valor de pH de 2,5 a 7, d) se separa el polvo de caucho precipitado de la mayor parte del agua de proceso mediante un procedimiento adecuado de separación sólido/líquido, e) se somete la torta de filtrado precipitada, dado el caso, mediante medidas adecuadas, a un conformado,y f) el producto en forma de polvo o gránulo se seca mediante un procedimiento de secado adecuado hasta una humedad final menor de un 3%.

    16.
    发明专利
    未知

    公开(公告)号：AT313589T

    公开(公告)日：2006-01-15

    申请号：AT02018990

    申请日：2002-08-27

    Applicant: DEGUSSA

    Inventor： GOERL UDO DR ,  SCHMITT MATTHIAS ,  STOBER REINHARD DR

    IPC: C08J3/16 ,  C08J3/12 ,  C08J3/215 ,  C08K3/36 ,  C08K9/06 ,  C08L21/00 ,  C08L21/02 ,  C09C1/30 ,  C09C3/12

    Abstract: Preparation of silicate and/or oxygenic filler-containing rubber powder or granulate, based on aqueous rubber emulsion or latex, involves suspension of silicate and/or filler, polysiloxane hydrophobizing agent and nonionic surfactant in water, adjustment of the pH to 2.5-7, separation of the deposited rubber powder from the solid particles, and drying the powdered or granulated product to a moisture content of less than 3%. A process for preparation of silicate and/or oxygenic filler-containing rubber powder or granulate based on aqueous rubber emulsion or latexes involves: (a) suspension of a silicate and/or oxygenic filler, polysiloxane hydrophobizing agent(s) (in amount 0.5-7% relative to the filler) and nonionic surfactant(s) (in amount 0.1-2% relative to the filler) at 10-60 degrees C in water, giving a suspension of density 0.5-5%, (b) addition of the rubber latex emulsion to the filler suspension with stirring, (c) adjustment of the pH of the aqueous mixture with an acid, preferably sulfuric acid or aluminum sulfate to a pH of 2.5-7, (d) separation of the deposited rubber powder from the process water by, for example, solid/liquid separation of the solid particles, (e) molding of the filter cake, and (f) drying of the powdered or granulated product to an end moisture content of less than 3%.

    RUBBER GRANULES CONTAINING SILICATES AND OXIDS AS STUFFING
    17.
    发明专利
    RUBBER GRANULES CONTAINING SILICATES AND OXIDS AS STUFFING 未知

    公开(公告)号：HU0203554A2

    公开(公告)日：2004-04-28

    申请号：HU0203554

    申请日：2002-10-17

    Applicant: DEGUSSA

    Inventor： GOERL UDO DR ,  SCHMITT MATTHIAS ,  STOBER REINHARD DR

    IPC: C08J3/12 ,  C08J3/16 ,  C08J3/215 ,  C08K3/36 ,  C08K9/06 ,  C08L21/00 ,  C08L21/02 ,  C08J3/09

    Abstract: Preparation of silicate and/or oxygenic filler-containing rubber powder or granulate, based on aqueous rubber emulsion or latex, involves suspension of silicate and/or filler, polysiloxane hydrophobizing agent and nonionic surfactant in water, adjustment of the pH to 2.5-7, separation of the deposited rubber powder from the solid particles, and drying the powdered or granulated product to a moisture content of less than 3%. A process for preparation of silicate and/or oxygenic filler-containing rubber powder or granulate based on aqueous rubber emulsion or latexes involves: (a) suspension of a silicate and/or oxygenic filler, polysiloxane hydrophobizing agent(s) (in amount 0.5-7% relative to the filler) and nonionic surfactant(s) (in amount 0.1-2% relative to the filler) at 10-60 degrees C in water, giving a suspension of density 0.5-5%, (b) addition of the rubber latex emulsion to the filler suspension with stirring, (c) adjustment of the pH of the aqueous mixture with an acid, preferably sulfuric acid or aluminum sulfate to a pH of 2.5-7, (d) separation of the deposited rubber powder from the process water by, for example, solid/liquid separation of the solid particles, (e) molding of the filter cake, and (f) drying of the powdered or granulated product to an end moisture content of less than 3%.

    18.
    发明专利
    未知

    公开(公告)号：DE10151430A1

    公开(公告)日：2003-04-30

    申请号：DE10151430

    申请日：2001-10-18

    Applicant: DEGUSSA

    Inventor： GOERL UDO ,  SCHMITT MATTHIAS ,  STOBER REINHARD

    IPC: C08J3/16 ,  C08J3/12 ,  C08J3/215 ,  C08K3/36 ,  C08K9/06 ,  C08L21/00 ,  C08L21/02 ,  C08C1/07 ,  C08L7/02 ,  C08K3/00 ,  C08L83/04 ,  B60C1/00 ,  C09C3/12 ,  B01J20/22 ,  E04B1/66

    Abstract: Preparation of silicate and/or oxygenic filler-containing rubber powder or granulate, based on aqueous rubber emulsion or latex, involves suspension of silicate and/or filler, polysiloxane hydrophobizing agent and nonionic surfactant in water, adjustment of the pH to 2.5-7, separation of the deposited rubber powder from the solid particles, and drying the powdered or granulated product to a moisture content of less than 3%. A process for preparation of silicate and/or oxygenic filler-containing rubber powder or granulate based on aqueous rubber emulsion or latexes involves: (a) suspension of a silicate and/or oxygenic filler, polysiloxane hydrophobizing agent(s) (in amount 0.5-7% relative to the filler) and nonionic surfactant(s) (in amount 0.1-2% relative to the filler) at 10-60 degrees C in water, giving a suspension of density 0.5-5%, (b) addition of the rubber latex emulsion to the filler suspension with stirring, (c) adjustment of the pH of the aqueous mixture with an acid, preferably sulfuric acid or aluminum sulfate to a pH of 2.5-7, (d) separation of the deposited rubber powder from the process water by, for example, solid/liquid separation of the solid particles, (e) molding of the filter cake, and (f) drying of the powdered or granulated product to an end moisture content of less than 3%.

    20.
    发明专利
    未知

    公开(公告)号：DE50205335D1

    公开(公告)日：2006-01-26

    申请号：DE50205335

    申请日：2002-08-27

    Applicant: DEGUSSA

    Inventor： GOERL DR ,  SCHMITT MATTHIAS ,  STOBER DR

    IPC: C08J3/16 ,  C08J3/12 ,  C08J3/215 ,  C08K3/36 ,  C08K9/06 ,  C08L21/00 ,  C08L21/02 ,  C09C1/30 ,  C09C3/12

    Abstract: Preparation of silicate and/or oxygenic filler-containing rubber powder or granulate, based on aqueous rubber emulsion or latex, involves suspension of silicate and/or filler, polysiloxane hydrophobizing agent and nonionic surfactant in water, adjustment of the pH to 2.5-7, separation of the deposited rubber powder from the solid particles, and drying the powdered or granulated product to a moisture content of less than 3%. A process for preparation of silicate and/or oxygenic filler-containing rubber powder or granulate based on aqueous rubber emulsion or latexes involves: (a) suspension of a silicate and/or oxygenic filler, polysiloxane hydrophobizing agent(s) (in amount 0.5-7% relative to the filler) and nonionic surfactant(s) (in amount 0.1-2% relative to the filler) at 10-60 degrees C in water, giving a suspension of density 0.5-5%, (b) addition of the rubber latex emulsion to the filler suspension with stirring, (c) adjustment of the pH of the aqueous mixture with an acid, preferably sulfuric acid or aluminum sulfate to a pH of 2.5-7, (d) separation of the deposited rubber powder from the process water by, for example, solid/liquid separation of the solid particles, (e) molding of the filter cake, and (f) drying of the powdered or granulated product to an end moisture content of less than 3%.

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