公开(公告)号：JP2004182994A

公开(公告)日：2004-07-02

申请号：JP2003407939

申请日：2003-12-05

Applicant: Degussa Ag ,  デグサ アクチエンゲゼルシャフト

Inventor： SCHMITT MATTHIAS ,  GOERL UDO ,  STOBER REINHARD

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

CPC classification number: C08J3/215 ,  C08J2321/00

Abstract: PROBLEM TO BE SOLVED: To provide a process for producing a filler-containing rubber granule based on an aqueous rubber emulsion or latex, and to provide use of the rubber granule obtained by the process.
SOLUTION: The continuous process for producing the filler-containing rubber granule comprises (a) introducing an aqueous filler preparation into a reactor, in parallel with an aqueous rubber emulsion or latex, coagulating the rubber on the filler surface, and continuously discharging a thus produced precipitating suspension from the reactor, (b) supplying raw materials into the reactor through separate conduits, (c) carrying out reaction in a continuously operated reactor, (d) using, as a reactor, an agitating vessel having an intensive mixer, and (e) coagulating the latex through lowering pH and/or adding an aqueous salt of a group IIa, IIIa or VIII metal of the Periodic Table.
COPYRIGHT: (C)2004,JPO&NCIPI

公开(公告)号：JP2003160668A

公开(公告)日：2003-06-03

申请号：JP2002300980

申请日：2002-10-15

Applicant: DEGUSSA

Inventor： GOERL UDO DR ,  STOBER REINHARD ,  SCHMITT MATTHIAS

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

Abstract: PROBLEM TO BE SOLVED: To provide a method of manufacturing rubber powder or a rubber granule containing a silica filler and/or an oxidizing filler based on an aqueous rubber emulsion or a latex. SOLUTION: The manufacturing method comprizes preparing a water suspension of a silica filler and/or an oxidizing filler, a hydrophobicity imparting agent comprizing a polysiloxane and a nonionic surfactant, adding a rubber latex emulsion, adjusting pH with an acid, separating a precipitated product, drying and finally reducing its moisture content to less than 3%. COPYRIGHT: (C)2003,JPO

公开(公告)号：PL356736A1

公开(公告)日：2003-04-22

申请号：PL35673602

申请日：2002-10-18

Applicant: DEGUSSA

Inventor： GOERL UDO ,  STOBER REINHARD ,  SCHMITT MATTHIAS

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

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%.

公开(公告)号：AT506324T

公开(公告)日：2011-05-15

申请号：AT05821745

申请日：2005-12-20

Applicant: EVONIK DEGUSSA GMBH

Inventor： SCHUMACHER KAI ,  MOERTERS MARTIN ,  FLESCH JUERGEN ,  VON TWISTERN MARCUS ,  HAMM VOLKER ,  SCHMITT MATTHIAS ,  ALFF HARALD ,  SCHILLING ROLAND

IPC: C01F7/30 ,  B41M5/00 ,  C01F7/02 ,  C09K3/14

Abstract: Aluminum oxide powder in the form of aggregates of primary-particles, which has a BET surface area of from 10 to 90 m2/g and comprises as crystalline phases, in addition to gamma-aluminum oxide and/or theta-aluminum oxide, at least 30% of delta-aluminum oxide. It is prepared by vaporizing aluminum chloride and burning the vapor together with hydrogen and air, the ratio of primary air/secondary air being 0.01 to 2, the exit speed vB of the reaction mixture from the burner being at least 10 m/s, the lambda value being 1 to 4, the gamma value being 1 to 3 and the value of gamma*vB/lambda being greater than or equal to 55. Dispersion comprising the aluminum oxide powder. Coating composition comprising the dispersion.

公开(公告)号：CZ298124B6

公开(公告)日：2007-06-27

申请号：CZ20023441

申请日：2002-10-16

Applicant: DEGUSSA

Inventor： GOERL UDO ,  STOBER REINHARD ,  SCHMITT MATTHIAS

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

Abstract: Resení se týká zpusobu výroby kaucukových prásku nebo granulátu obsahujících kremicitá a/nebo oxidová plniva z vodných kaucukových emulzí, poprípade latexu, kysele katalyzovanou koagulací kaucuku s regulovanou hodnotou pH a pouzití techto produktu ve vulkanizovatelných kaucukových smesích, v oblasti ochrany zivotního prostredí jako adsorpcních a absorpcních cinidel a rovnez ve stavebnictví jako tesnicích hmot.

公开(公告)号：DE19950917A1

公开(公告)日：2001-04-26

申请号：DE19950917

申请日：1999-10-21

Applicant: DEGUSSA ,  DEUTSCHES INST KAUTSCHUK

Inventor： GOERL UDO ,  SCHMITT MATTHIAS ,  STOBER REINHARD ,  UPHUS REINHARD ,  SKIBBA OLAF

IPC: B29B7/48 ,  B29C47/40 ,  B29C47/64 ,  B01F7/08 ,  C08J3/20 ,  C08L21/00

公开(公告)号：HU227776B1

公开(公告)日：2012-02-28

申请号：HU0203554

申请日：2002-10-17

Applicant: EVONIK DEGUSSA GMBH

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

IPC: C08J3/09 ,  C08J3/12 ,  C08J3/16 ,  C08J3/215 ,  C08K3/00 ,  C08K3/34 ,  C08K3/36 ,  C08K5/00 ,  C08K9/06 ,  C08L7/00 ,  C08L15/00 ,  C08L21/00 ,  C08L21/02

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%.

公开(公告)号：DE50306835D1

公开(公告)日：2007-05-03

申请号：DE50306835

申请日：2003-10-15

Applicant: DEGUSSA

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

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

Abstract: Continuous production of filled rubber granules comprises introducing an aqueous filler composition and a rubber latex through separate inlets into a reactor with a high-speed stirrer and coagulating the latex by lowering the pH and/or adding a water-soluble Group IIa, IIb, IIIa or VIII metal salt.

公开(公告)号：DE102004061700A1

公开(公告)日：2006-07-06

申请号：DE102004061700

申请日：2004-12-22

Applicant: DEGUSSA

Inventor： SCHUMACHER KAI ,  MOERTERS MARTIN ,  FLESCH JUERGEN ,  TWISTERN MARCUS VON ,  HAMM VOLKER ,  SCHMITT MATTHIAS ,  ALFF HARALD ,  SCHILLING ROLAND

IPC: C01F7/02 ,  C01F7/30

Abstract: Aluminum oxide powder in the form of aggregates of primary-particles, which has a BET surface area of from 10 to 90 m2/g and comprises as crystalline phases, in addition to gamma-aluminum oxide and/or theta-aluminum oxide, at least 30% of delta-aluminum oxide. It is prepared by vaporizing aluminum chloride and burning the vapor together with hydrogen and air, the ratio of primary air/secondary air being 0.01 to 2, the exit speed vB of the reaction mixture from the burner being at least 10 m/s, the lambda value being 1 to 4, the gamma value being 1 to 3 and the value of gamma*vB/lambda being greater than or equal to 55. Dispersion comprising the aluminum oxide powder. Coating composition comprising the dispersion.

公开(公告)号：DE10142736A1

公开(公告)日：2003-03-27

申请号：DE10142736

申请日：2001-08-31

Applicant: DEGUSSA

Inventor： SCHMITT MATTHIAS ,  KUGE MARTIN ,  STOBER REINHARD ,  ESSER SUSANNE ,  GÖRL UDO ,  LEIMANN JÜRGEN ,  KOPIETZ JAN ,  TEIKE SILKE

IPC: B01J20/18 ,  B01J20/28 ,  B01J20/00 ,  B01J20/20

Abstract: Adsorbents for organic compounds consist of filler granules containing 20-99.9 wt% filler and a binder. An Independent claim is also included for a method for the production of these adsorbents by mixing binder(s) with filler(s) and granulating the mixture in a mixer or granulator.