公开(公告)号：DE2755450A1

公开(公告)日：1979-06-21

申请号：DE2755450

申请日：1977-12-13

Applicant: DEGUSSA

Inventor： MUELLER KARL-HANS DIPL CHEM DR ,  BARTHEL WALTER ,  OELMUELLER ROLF

IPC: C08L95/00 ,  C04B26/26 ,  C08K3/36 ,  E01C7/18 ,  E01C7/26

Abstract: There is provided a process for improving mineral asphaltic coatings for streets and roadways comprising preparing a mixture to be used as the base mineral asphalt coating material, homogeneously mixing in 0.1 to 10 weight % of silica which is either (1) a precipitated silica, (2) a precipitated and spray dried silica or (3) a pyrogenically produced silica and further working this mixture into a mineral asphalt coating for streets and roadways.

公开(公告)号：IN176338B

公开(公告)日：1996-04-27

申请号：IN911CA1990

申请日：1990-10-29

Applicant: DEGUSSA

Inventor： MULLER KARL-HANS ,  BARTHEL WALTER

IPC: C08L95/00

公开(公告)号：NO178630B

公开(公告)日：1996-01-22

申请号：NO905025

申请日：1990-11-20

Applicant: DEGUSSA

Inventor： MULLER KARL-HANS ,  BARTHEL WALTER

IPC: C08K3/36 ,  C08K3/04 ,  C08L95/00 ,  C10C3/14

Abstract: Bitumen granules which contain 0.5 to 15% by weight, preferably 6.1 to 15% by weight, of a re-powdering and separating agent such as, for example, synthetic silica or carbon black, are produced by atomising hot liquid bitumen in a known spray mixer and simultaneously introducing the repowdering and separating agent into the spray mixer via the cold air stream.

公开(公告)号：AT89307T

公开(公告)日：1993-05-15

申请号：AT90121450

申请日：1990-11-09

Applicant: DEGUSSA

Inventor： MUELLER KARL-HANS DR ,  BARTHEL WALTER

IPC: C08K3/04 ,  C08K3/36 ,  C08L95/00 ,  C10C3/14

公开(公告)号：DK166032B

公开(公告)日：1993-03-01

申请号：DK471186

申请日：1986-10-02

Applicant: DEGUSSA

Inventor： MUELLER KARL-HANS ,  BARTHEL WALTER ,  KUETHER JUERGEN

IPC: C08L95/00 ,  D06N5/00 ,  E04D5/02

公开(公告)号：DE3869824D1

公开(公告)日：1992-05-14

申请号：DE3869824

申请日：1988-02-23

Applicant: DEGUSSA

Inventor： MUELLER KARL-HANS DR ,  BARTHEL WALTER

IPC: B28C7/04 ,  B05B7/14 ,  B28C7/06 ,  B65G53/32 ,  C04B14/06 ,  C04B28/04 ,  E04G21/02 ,  E04G21/04

Abstract: In the deposition of a sprayed concrete layer by pumping a pumpable and sprayable mixt. of cement, aggregate, opt. additives and water to a spray unit with a device for feeding propellant air at several bars pressure, the novelty is that the air is laden with synthetic silicic acid of specific surface at least 25 sq. m/g. in amount such that the sprayed concrete experiences a spontaneous temp. increase of a few deg. K immediately after deposition. A combined spray unit and propellant air feeder, for carrying out the process, has a straight supply pipe for the silica-laden air or the concrete mix and one or more inclined feed pipes for the concrete mix or the silica-laden air which merges into the straight pipe.

公开(公告)号：FI85604C

公开(公告)日：1992-05-11

申请号：FI863853

申请日：1986-09-24

Applicant: DEGUSSA

Inventor： MUELLER KARL-HANS ,  BARTHEL WALTER ,  KUETHER JUERGEN

IPC: C08L95/00 ,  D06N5/00 ,  E04D5/02 ,  E02B3/16 ,  E04B1/66

公开(公告)号：NO166537C

公开(公告)日：1991-08-07

申请号：NO832926

申请日：1983-08-15

Applicant: DEGUSSA

Inventor： MUELLER KARL HANS ,  BARTHEL WALTER

IPC: C08K3/00 ,  C08K5/5419 ,  C08K9/06 ,  C08L95/00

公开(公告)号：NO166537B

公开(公告)日：1991-04-29

申请号：NO832926

申请日：1983-08-15

Applicant: DEGUSSA

Inventor： MUELLER KARL HANS ,  BARTHEL WALTER

IPC: C08K3/00 ,  C08K5/5419 ,  C08K9/06 ,  C08L95/00

公开(公告)号：NO892640L

公开(公告)日：1990-02-05

申请号：NO892640

申请日：1989-06-26

Applicant: DEGUSSA

Inventor： DANIELS IVO ,  MANNER REINHARD ,  MUELLER KARL HANS ,  BARTHEL WALTER

IPC: C10C3/14 ,  C08J3/12 ,  C08L95/00

Abstract: Bitumen granules which contain 0.5 to 6 % by weight of a powdering and separating agent such as, for example, synthetic silica or carbon black, is produced by atomising hot liquid bitumen in a known spray mixer and simultaneously introducing the powdering and separating agent via the cold air stream into the spray mixer.