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：FI90984B

公开(公告)日：1994-01-14

申请号：FI883618

申请日：1988-08-02

Applicant: DEGUSSA

Inventor： STOBER REINHARD ,  FISCHER WOLFGANG ,  HUSS MICHAEL ,  PIETER REIMUND

IPC: C08B37/00 ,  C08B37/14 ,  D21H17/24 ,  C08B37/18

Abstract: The process entails reaction with alkylene epoxides in alkaline medium in the presence of water at 5 to 60 DEG C and in the presence of a finely divided hydrophilic silica.

公开(公告)号：IN169654B

公开(公告)日：1991-11-30

申请号：IN570CA1988

申请日：1988-07-07

Applicant: DEGUSSA

Inventor： STOBER REINHARD ,  FISCHER WOLFGANG ,  HUSS MICHAEL ,  PIETER REIMUND

IPC: C08B37/00 ,  C08B37/14 ,  D21H17/24

Abstract: The process entails reaction with alkylene epoxides in alkaline medium in the presence of water at 5 to 60 DEG C and in the presence of a finely divided hydrophilic silica.

公开(公告)号：FI82840C

公开(公告)日：1991-04-25

申请号：FI870249

申请日：1987-01-21

Applicant: DEGUSSA

Inventor： STOBER REINHARD ,  FISCHER WOLFGANG ,  HUSS MICHAEL

IPC: C08B37/00 ,  C08B37/14

公开(公告)号：FI884450A

公开(公告)日：1989-04-04

申请号：FI884450

申请日：1988-09-28

Applicant: DEGUSSA

Inventor： STOBER REINHARD ,  BISCHOFF DIETMAR ,  HUSS MICHAEL

IPC: C08B11/145 ,  C08B

Abstract: The ethers are prepared by reacting alkylene epoxides with cellulose or derivatives thereof in alkaline medium in the presence of water. Cationisation agents employed are alkylene epoxides or mixtures thereof with the general formulae in which n is 1, 2 or 3, R , R and R are identical or different alkyl radicals with 1 to 18 carbon atoms or R is the benzyl radical or -C2H4OH, and X is chloride, bromide, sulphate or acetate.

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%.

公开(公告)号：FI103798B

公开(公告)日：1999-09-30

申请号：FI902525

申请日：1990-05-22

Applicant: DEGUSSA

Inventor： FISCHER WOLFGANG ,  BISCHOFF DIETMAR ,  HUSS MICHAEL ,  STOBER REINHARD ,  ROESSLER GERT

IPC: C08B31/12 ,  D21H17/28 ,  D21H17/29

公开(公告)号：FI91414B

公开(公告)日：1994-03-15

申请号：FI883661

申请日：1988-08-05

Applicant: DEGUSSA

Inventor： STOBER REINHARD ,  FISCHER WOLFGANG ,  HUSS MICHAEL ,  PIETER REIMUND

IPC: C08B31/12 ,  D21H17/28 ,  C08B31/08

Abstract: The process entails reaction with alkylene epoxides in alkaline medium in the presence of water.