中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

48 records (took 0.042 seconds)

    11.
    发明专利
    未知

    公开(公告)号：DE3631072A1

    公开(公告)日：1988-03-24

    申请号：DE3631072

    申请日：1986-09-12

    Applicant: BASF AG

    Inventor： HELWIG REINHARD DR ,  HOCH HELMUT DR

    IPC: C09B3/22 ,  C09B3/30

    Abstract: The dye is obtained by alkylating 16,17-dihydroxyviolanthrene-5,10-dione in a tertiary aliphatic or cycloaliphatic amine as solvent at from 100 DEG to 230 DEG C. in high yield and high purity.

    12.
    发明专利
    未知

    公开(公告)号：CH603567A5

    公开(公告)日：1978-08-31

    申请号：CH1079876

    申请日：1976-08-25

    Applicant: BASF AG

    Inventor： SCHEUERMANN HORST DR ,  HOCH HELMUT DR

    IPC: C07B61/00 ,  B01J27/00 ,  B01J27/14 ,  C07C20060101 ,  C07C67/00 ,  C07C301/00 ,  C07C303/32 ,  C07C309/45

    Abstract: Dimethylaminobenzenesulfonates are manufactured by reacting nitrobenzenesulfonates with formaldehyde and hydrogen in the presence of a hydrogenation catalyst containing a metal of atomic number from 24 to 29 and of phosphoric acid and water at a pH of from 2 to 3.5, at from 50 to 150 DEG C, under a pressure of at least 40 bars, with a residence time of from 1 to 15 minutes. The products are starting materials for the synthesis of dyes, especially of rhodamine dyes, oxazine dyes and reactive dyes, and also of pharmaceuticals and pesticides.

    3-nitro-p-cresol -(1) - by nitration of p-cresol-(1) carbonate
    14.
    发明专利
    3-nitro-p-cresol -(1) - by nitration of p-cresol-(1) carbonate 未知

    公开(公告)号：DE2262853A1

    公开(公告)日：1974-06-27

    申请号：DE2262853

    申请日：1972-12-22

    Applicant: BASF AG

    Inventor： HOCH HELMUT DR ,  QUADBECK-SEEGER HANS-JUERGEN D

    IPC: C07C205/22 ,  C07C79/26

    Abstract: Title cpd. (I) is prepd. by nitrating p-cresol-(l), pptg. (I) carbonate at 85-100 degrees C and saponifying at 65-80 degrees C with aq. NH3 or at up to 80 degrees C with an amine R1 R2 NH (where R is 1-5C alkyl, 2-5C-hydroxy alkyl, alkoxyalkyl, amino alkyl, N-alkylamino alkyl each contg. 2-5C or N, N-dialkyl amino alkyl contg. 3-5C; R2 is H or alkyl; R1 and R2 together contg. 2-5C or NR1R2 is a 5-or 6-membered heterocyclic ring). Title cpd. is used in prodn. of herbicides and dyestuffs.

    15.
    发明专利
    未知

    公开(公告)号：DE3921451C2

    公开(公告)日：1998-02-26

    申请号：DE3921451

    申请日：1989-06-30

    Applicant: BASF AG

    Inventor： HELWIG REINHARD DR ,  HOCH HELMUT DR ,  EPPLE GERHARD DR

    IPC: C07C1/32 ,  C09B1/467 ,  C09B1/32

    Abstract: PCT No. PCT/EP90/01030 Sec. 371 Date Oct. 22, 1991 Sec. 102(e) Date Oct. 22, 1991 PCT Filed Jun. 27, 1990 PCT Pub. No. WO91/00317 PCT Pub. Date Jan. 10, 1991.Anthraquinone dyes I I (Ar = aryl, A = anthraquinonyl) are prepared by reacting a aryldihalotriazine II II (Hal = chlorine or bromine) with an aminoanthraquinone III A-NH2 in an N-C1-C4 -alkylpyrrolid-2-one or -piperid-2-one, N-di-C1-C4 -alkylacetamide or -propionamide or urea derivatives of the formula IV IV (R = identical or different alkyl groups of from 1 to 4 carbon atoms which can also be linked together to form a 5- or 6-membered ring containing the urea group) as solvent.

    19.
    发明专利
    未知

    公开(公告)号：DE3825469A1

    公开(公告)日：1990-02-01

    申请号：DE3825469

    申请日：1988-07-27

    Applicant: BASF AG

    Inventor： HOCH HELMUT DR ,  POLKE REINHARD DR ,  SCHOLZ NORBERT

    IPC: B02C19/06 ,  B02C23/30

    Abstract: Solids are dispersed, comminuted or deagglomerated and classified in a single piece of equipment, a classifier jet mill representing a combination of a jet mill and a spiral flow classifier.

Patent Agency Ranking