公开(公告)号：DE3005137A1

公开(公告)日：1981-08-20

申请号：DE3005137

申请日：1980-02-12

Applicant: DEGUSSA

Inventor： NAUROTH PETER ,  KUHLMANN ROBERT ,  TUERK GUENTER DIPL CHEM DR ,  BODE RUDOLF DIPL PHYS ,  REISERT ARTHUR

IPC: C08K3/00 ,  C01B33/12 ,  C01B33/187 ,  C01B33/193 ,  C01B33/20 ,  C08K3/22 ,  C08K3/34 ,  C08K3/36 ,  C08L83/00 ,  C08L83/04 ,  C09C1/30 ,  C08L83/06

Abstract: Cerium containing precipitated silica is disclosed as well as a process for its production as well as compositions hardenable to elastomers which contain the cerium containing precipitated silica. The precipitated silica -BET-surface area according -to DIN 66 131 m2/g 140 +/- 40 -Loss on drying according -to DIN 55 921 Wt.-% 2.0-4.0 -Loss on ignition according -to DIN 55 921 Wt.-% 2.5-12.5 -pH-according to DIN 53 200 3.0-7.0 -Conductivity in 4% aqueous -dispersion at 20 DEG C. mu s 500 -Packed density according -to DIN 53 194 g/l 80 +/- 40 -CeO2-content, based on the -material dried for 2 -hours at 105 DEG C. Wt.-% 0.3-50 -Sieve residue according -to Mocker 45 mu m -(DIN 53 580) Wt.-% 0.2 - They are prepared by adding a cerium (IV) salt solution to the original precipitated suspension of a precipitated silica. The compositions produced with the cerium containing precipitated silica hardenable elastomers based on diorganopolysiloxanes exhibit excellent heat stability. Additionally, the cerium containing precipitated silica acts as a fire retardant agent.

公开(公告)号：DE2716225A1

公开(公告)日：1978-10-26

申请号：DE2716225

申请日：1977-04-13

Applicant: DEGUSSA

Inventor： NAUROTH PETER ,  KUHLMANN ROBERT ,  BODE RUDOLF DIPL PHYS ,  TUERK GUENTER DIPL CHEM DR ,  REISERT ARTHUR

IPC: C01B33/193 ,  C08K3/38 ,  C09C1/30 ,  C01B33/14 ,  C08K3/34 ,  C08L83/04

Abstract: Pptd. silica contg. B has the following properties: BET surface are (DIN 66 131) 140 plus-or-minus 60 mg2/g.; loss on drying (DIN 55 921) 2.0-4.0 wt. %; less on calcination (DIN 55 921) 2.5 plus-or-minus 1.0 wt. %; pH (DIN 53 200) 4.0-7.0; conductivity in 4% aq. dispersion 300 muS; tamped density (DIN 53 194) 110 plus-or-minus 4.0 g./l.; B2O3 content 4-20 wt. %; SO3 content 0.25-wt. % and Na2O content 0.25 wt. % after drying 2 hrs. at 105 degrees C. This material is claimed for use as filler in diorganopolysiloxane-based compsns. which cure to elastomers. This filler, like B2O3 and its cpds., effects the condens. of silanol gps. at elevated temp., giving bounding putty. It avoids the danger of higher B cpds., which can be toxic in vapour form, evaporating or diffusing from the mixt.

公开(公告)号：DE2729244A1

公开(公告)日：1979-01-04

申请号：DE2729244

申请日：1977-06-29

Applicant: DEGUSSA

Inventor： NAUROTH PETER ,  ESCH HEINZ ,  KUHLMANN ROBERT ,  BODE RUDOLF DIPL PHYS ,  REISERT ARTHUR ,  BUEHLER HARALD ,  TUERK GUENTHER DIPL CHEM DR

IPC: C08K3/00 ,  C01B33/12 ,  C01B33/18 ,  C08K3/34 ,  C08K3/36 ,  C08L83/00 ,  C08L83/04 ,  C09C1/00 ,  C09C1/28 ,  C09C1/30 ,  C08K7/26

公开(公告)号：CH526619A

公开(公告)日：1972-08-15

申请号：CH1612367

申请日：1967-11-17

Applicant: DEGUSSA

Inventor： DIPL-CHEM FERCH HORST DR ,  BODE RUDOLF DIPL PHYS ,  HANS GRAEF

IPC: C09B67/20 ,  C09D17/00 ,  C09B67/00 ,  C09C3/00

公开(公告)号：DE3243194A1

公开(公告)日：1984-05-24

申请号：DE3243194

申请日：1982-11-23

Applicant: DEGUSSA

Inventor： BODE RUDOLF DIPL PHYS ,  FERCH HORST DIPL CHEM DR ,  REISERT ARTHUR

IPC: C08L83/00 ,  C08K3/36 ,  C08K5/14 ,  C08L83/04 ,  C08J3/24 ,  C08K5/54

公开(公告)号：DE3143354A1

公开(公告)日：1983-05-11

申请号：DE3143354

申请日：1981-10-31

Applicant: DEGUSSA

Inventor： BODE RUDOLF DIPL PHYS ,  FERCH HORST DIPL CHEM DR ,  REISERT ARTHUR

IPC: C08K3/00 ,  C09D7/00 ,  C09D7/44 ,  C09K3/00 ,  C09C1/30 ,  C09D5/04 ,  C09D7/02 ,  C09J1/00

Abstract: The invention relates to a process for improving the thickening, in particular gelling, effect of pyrogenically produced silica dispersed in water or organic liquids, in particular adhesives having a predominantly polar character. The improvement in the thixotropic effect is achieved by adding pulverulent type A zeolite to the silica.

公开(公告)号：DE2964052D1

公开(公告)日：1982-12-23

申请号：DE2964052

申请日：1979-07-23

Applicant: DEGUSSA

Inventor： BODE RUDOLF DIPL PHYS ,  REISERT ARTHUR ,  TURK GUNTER DR DIPL CHEM ,  STRACK HANS DR DIPL CHEM

IPC: C08K3/00 ,  B29B11/00 ,  B29C61/00 ,  B29D7/01 ,  C08K3/34 ,  C08L7/00 ,  C08L21/00 ,  C08L23/00 ,  C08L33/00 ,  C08L33/02 ,  C08L101/00

Abstract: There are provided thermoplastic polymer containing mixtures suitable for making synthetic resin films with antiblocking properties containing 0.05 to 70 weight % of a pulverulent zeolite.

公开(公告)号：DE2628975A1

公开(公告)日：1977-12-29

申请号：DE2628975

申请日：1976-06-28

Applicant: DEGUSSA

Inventor： NAUROTH PETER ,  ESCH HEINZ ,  KUHLMANN ROBERT ,  BODE RUDOLF DIPL PHYS ,  REISTER ARTHUR ,  BUEHLER HARALD ,  TUERK GUENTER DIPL CHEM DR

IPC: C08K3/00 ,  C01B33/12 ,  C01B33/18 ,  C01B33/193 ,  C08K3/34 ,  C08K3/36 ,  C08L83/00 ,  C08L83/04 ,  C09C1/00 ,  C09C1/28 ,  C09C1/30 ,  C08K9/00

Abstract: Finely divided precipitated silicic acid is obtained by the method of the invention. Compositions containing the finely divided precipitated silicic acid as a filler distributed in an elastomer such as an organopolysiloxane are disclosed.