公开(公告)号：DK293783D0

公开(公告)日：1983-06-24

申请号：DK293783

申请日：1983-06-24

Applicant: HOECHST AG

Inventor： SCHUI FRANZ ,  DEUBEL REINHOLD ,  WESTER NORBERT

IPC: C09B29/15 ,  C09B63/00 ,  C09B67/00 ,  C09B67/20 ,  C09B67/26 ,  C09B67/48 ,  C09D7/12 ,  C09D11/02 ,  C09B

Abstract: A novel crystallographic modification ( beta -modification) of the pigment C. I. Pigment Red 53:1 is described and claimed which has characteristic reflection values in its X-ray diffraction pattern obtained by means of Cu-K alpha radiation. This novel pigment form is obtained by reacting an aqueous solution of an alkali metal or ammonium salt of the formula 1 (1) with the equivalent amount of a water-soluble barium salt in the presence of a compound of the formula 2 (2) The modification is distinguished by a more yellowish-red shade as compared to the known alpha -modification.

公开(公告)号：CA1260252A

公开(公告)日：1989-09-26

申请号：CA499767

申请日：1986-01-17

Applicant: HOECHST AG

Inventor： WESTER NORBERT ,  SCHNEIDER GERHART

IPC: E21B43/22 ,  C07C291/04 ,  C09K8/584

Abstract: A method for recovering oil from an oil-bearing subterranean formation which comprises injecting into the formation a flooding fluid containing 0.01 to 10% of an ether-amine oxide surfactant of the formula wherein R denotes C8-C20-alkyl, C8-C20-alkenyl or C4-C18-alkylaryl R1 and R2 are identical or different and denote C1-C4-alkyl, x denotes a number from 2 to 12, and R3 denotes a group of the formulae -C2H4- and/or -C3H6-.

公开(公告)号：CA1225102A

公开(公告)日：1987-08-04

申请号：CA465866

申请日：1984-10-19

Applicant: HOECHST AG

Inventor： WESTER NORBERT

IPC: C07C217/08 ,  C07C20060101 ,  C07C67/00 ,  C07C213/00 ,  C07C213/04 ,  C07C217/04 ,  C07C217/18 ,  C07C217/48 ,  C07C89/02 ,  C07C93/02

Abstract: of the disclosure: Process for preparing tertiary amines of the formula in which R1 denotes C8-C26-alkyl or C9-C18-alkylaryl, R2 denotes C1-C22-alkyl, and n is a number from 1 to 15, by reacting 2 moles of a compound of the formula R1-(OCH2CH2)n-X in which X denotes halogen or -OSO3Na or -OSO3K, and R1 and n are as defined above, with 1 to 1.4 moles of a compound of the formula R2-NH2 where R2 denotes a C1-C22-alkyl radical, at temperatures of 100 to 200.degree.C, preferably 160 to 185.degree.C, in a solvent or solvent mixture, preferably in water, in the presence of an at least equimolar amount of a strong base.

公开(公告)号：CA1219858A

公开(公告)日：1987-03-31

申请号：CA431175

申请日：1983-06-24

Applicant: HOECHST AG

Inventor： SCHUI FRANZ ,  DEUBEL REINHOLD ,  WESTER NORBERT

IPC: C09B29/15 ,  C09B63/00 ,  C09B67/00 ,  C09B67/20 ,  C09B67/26 ,  C09B67/48 ,  C09D7/12 ,  C09D11/02 ,  C09B43/00 ,  D06P1/10

Abstract: of the disclosure: A novel crystallographic modification (.beta.-modification) of the pigment C I. Pigment Red 53:1 is described and claimed which has characteristic reflection values in its X-ray diffraction pattern obtained by means of Cu-K.alpha. radiation. This novel pigment form is obtained by reacting an aqueous solution of an alkali metal or ammonium salt of the formula 1 (1) with the equivalent amount of a water-soluble barium salt in the presence of a compound of the formula 2 (2), The modification is distinguished by a more yellowish-red shade as compared to the known .alpha.-modifiaction.

公开(公告)号：NO845274L

公开(公告)日：1985-07-01

申请号：NO845274

申请日：1984-12-28

Applicant: HOECHST AG

Inventor： UHL KLAUS ,  GULDEN WALTER ,  WESTER NORBERT ,  SCHNEIDER GERHART

IPC: C07C309/09 ,  C09K8/584 ,  E21B43/22 ,  C07C ,  E21B

公开(公告)号：DK501984D0

公开(公告)日：1984-10-19

申请号：DK501984

申请日：1984-10-19

Applicant: HOECHST AG

Inventor： WESTER NORBERT

IPC: C07C217/08 ,  C07C20060101 ,  C07C67/00 ,  C07C213/00 ,  C07C213/04 ,  C07C217/04 ,  C07C217/18 ,  C07C217/48 ,  C07C

公开(公告)号：NO161255B

公开(公告)日：1989-04-17

申请号：NO845274

申请日：1984-12-28

Applicant: HOECHST AG

Inventor： UHL KLAUS ,  GULDEN WALTER ,  WESTER NORBERT ,  SCHNEIDER GERHART

IPC: C07C309/09 ,  C09K8/584 ,  E21B43/22 ,  C07C143/11

公开(公告)号：MX156242A

公开(公告)日：1988-07-27

申请号：MX20035984

申请日：1984-02-16

Applicant: HOECHST AG

Inventor： WESTER NORBERT ,  UHL KLAUS ,  GULDEN WALTER ,  SCHNEIDER GERHART

IPC: E21B43/22 ,  C07C309/09 ,  C08G65/00 ,  C08G65/32 ,  C08G65/326 ,  C09K8/584 ,  C07C143/11

公开(公告)号：NO156978C

公开(公告)日：1987-12-30

申请号：NO840580

申请日：1984-02-16

Applicant: HOECHST AG

Inventor： WESTER NORBERT ,  UHL KLAUS ,  GULDEN WALTER ,  SCHNEIDER GERHART

IPC: E21B43/22 ,  C07C309/09 ,  C08G65/00 ,  C08G65/32 ,  C08G65/326 ,  C09K8/584 ,  C07C143/11

公开(公告)号：NO860166L

公开(公告)日：1986-07-22

申请号：NO860166

申请日：1986-01-17

Applicant: HOECHST AG

Inventor： WESTER NORBERT ,  SCHNEIDER GERHART

IPC: E21B43/22 ,  C07C291/04 ,  C09K8/584 ,  C07C135/00 ,  E21B43/00