公开(公告)号：CZ9901732A3

公开(公告)日：1999-09-15

申请号：CZ173299

申请日：1997-11-21

Applicant: BASF AG

Inventor： AICHINGER HEINRICH ,  FRIED MICHAEL ,  NESTLER GERHARD ,  DAMS ALBERT

IPC: C07C67/08 ,  C07C67/58 ,  C07C69/54

CPC classification number: C07C67/08 ,  C07C67/58 ,  Y02P20/584 ,  C07C69/54

公开(公告)号：CZ9901731A3

公开(公告)日：1999-09-15

申请号：CZ173199

申请日：1997-11-21

Applicant: BASF AG

Inventor： AICHINGER HEINRICH ,  FRIED MICHAEL ,  NESTLER GERHARD

IPC: C07C67/08 ,  C07C67/58 ,  C07C69/54

CPC classification number: C07C67/08 ,  C07C69/54

公开(公告)号：CZ9901730A3

公开(公告)日：1999-09-15

申请号：CZ173099

申请日：1997-11-21

Applicant: BASF AG

Inventor： AICHINGER HEINRICH ,  FRIED MICHAEL ,  NESTLER GERHARD

IPC: C07C67/08 ,  C07C67/54 ,  C07C67/60 ,  C07C69/54

CPC classification number: C07C67/08 ,  C07C67/54 ,  C07C69/54

公开(公告)号：CA2272868A1

公开(公告)日：1998-06-04

申请号：CA2272868

申请日：1997-11-21

Applicant: BASF AG

Inventor： DAMS ALBRECHT ,  NESTLER GERHARD ,  AICHINGER HEINRICH ,  FRIED MICHAEL

IPC: C07C67/08 ,  C07C67/58 ,  C07C69/54

Abstract: The invention relates to a method for producing (meth)acrylic acid esters by reacting (meth)acrylic acid with C4-C12-alkanols in the presence of sulfuric acid or of a sulfuric acid mono-C4-C12-alkyl ester as a catalyst, wherein the catalyst is regenerated by extraction with water from the reaction mixture and the aqueous catalyst solution is reintroduced into the esterification. The concentration of non-reacted alkanol in the reaction mixture that is to be extracted amounts to a maximum of 5 wt.% in relation to said reaction mixture.

公开(公告)号：ID17993A

公开(公告)日：1998-02-19

申请号：ID962699

申请日：1996-09-24

Applicant: BASF AG

Inventor： BAUR KARL GERHARD ,  ANNEN ULRICH ,  EXNER HERBERT ,  FRIED MICHAEL ,  RAUH ULRICH

IPC: C07C67/08 ,  C07C67/327 ,  C07C69/54 ,  C07C67/16

Abstract: A process for the prodn. of (1-4C alkyl) (meth)acrylate esters (AM/AE) from esters of formula (I) and opt. esters of formula (II), in which R = H or Me; R , R = 1-4C alkyl; n = 0 or more. The process comprises reaction in the liq. phase under reduced pressure in presence of acid, with continuous removal of cleavage prods. Also claimed is a process for the prodn. of (AM/AE) by the acid-catalysed esterification of 1-4C alkanols with (meth)acrylic acid, in which by-prods. (I) and (II) are sepd. from the prod. mixt. and subjected to the above cleavage process, and the cleavage prods. are continuously removed and returned to the esterification process.

公开(公告)号：CA994024A

公开(公告)日：1976-07-27

申请号：CA167899

申请日：1973-04-03

Applicant: BASF AG

Inventor： FRIED MICHAEL ,  MOELLER ROLF ,  ZUERN LUDWIG ,  STAHNECKER ERHARD

IPC: C08F2/00 ,  C08F20060101 ,  C08F2/04 ,  C08F2/10 ,  C08F26/00 ,  C08F26/08 ,  C08F26/10

Abstract: Solutions of N-vinylpyrrolidone polymers can be prepared with particular advantage by polymerization of N-vinylpyrrolidone in an aqueous medium by adding the polymerization catalyst in portions or continuously to the monomer solution in the form of a finely divided suspension in an aqueous solution of N-vinylpyrrolidone polymer.

公开(公告)号：CZ300165B6

公开(公告)日：2009-03-04

申请号：CZ20001583

申请日：1998-10-27

Applicant: BASF AG

Inventor： FRIED MICHAEL ,  NESTLER GERHARD ,  KAGELER PAUL LEON ,  JAMES LAWRENCE EDWIN

IPC: B63B25/08 ,  C08F2/42 ,  C08F20/02

Abstract: Polymerace s volnými radikály jsou okamžite ukonceny prídavkem roztoku obsahujícího fenothiazin, pricemž rozpouštedlo obsahuje z nejméne 50 % hmotnostních N-alkylpyrrolidon. Je také popsán roztok inhibitoru obsahující fenothiazin a N-alkylpyrrolidon, pro okamžité ukoncení polymerace, který obsahujerozpouštedlo, jež z nejméne 50 % hmotnostních tvorí N-alkylpyrrolidon.

公开(公告)号：CA2332508C

公开(公告)日：2007-08-28

申请号：CA2332508

申请日：1999-05-17

Applicant: BASF AG

Inventor： FRIED MICHAEL ,  ODENWALD OLIVER ,  NESTLER GERHARD ,  AICHINGER HEINRICH

IPC: B01J4/00 ,  B65D90/44 ,  B01J19/00 ,  B67D7/02 ,  C08F2/01 ,  C08F2/42

Abstract: The invention relates to a supply system for transferring a fluid to a container (1) fitted with a supply line (10). The system comprises a storage chamber filled with the fluid and a compressed gas store (14) whic h can be connected with said storage chamber (13). The storage chamber (13) and the compressed gas store (14) are positioned in direct proximity to each other and the storage chamber (13) can, if necessary, be connected to the supply line (10) by means of connecting elements (11, 12).

公开(公告)号：ES2165198T3

公开(公告)日：2002-03-01

申请号：ES98955561

申请日：1998-11-10

Applicant: BASF AG

Inventor： FRIED MICHAEL ,  NESTLER GERHARD

IPC: B01J4/00 ,  B01J19/00

Abstract: An apparatus for introducing a fluid into a container includes a supply leading into the interior of the container, closed by a bursting disk and connected to a supply line for the fluid. In order to increase the operational safety and to avoid clogging of the bursting disk, the supply is in the form of a telescopic tube which can be extended by the pressure of the fluid into the interior of the container and is mounted above the highest level in the container.

公开(公告)号：DK1028803T3

公开(公告)日：2001-11-19

申请号：DK98955561

申请日：1998-11-10

Applicant: BASF AG

Inventor： FRIED MICHAEL ,  NESTLER GERHARD

IPC: B01J4/00 ,  B01J19/00

Abstract: An apparatus for introducing a fluid into a container includes a supply leading into the interior of the container, closed by a bursting disk and connected to a supply line for the fluid. In order to increase the operational safety and to avoid clogging of the bursting disk, the supply is in the form of a telescopic tube which can be extended by the pressure of the fluid into the interior of the container and is mounted above the highest level in the container.