公开(公告)号：AU6893194A

公开(公告)日：1995-02-16

申请号：AU6893194

申请日：1994-08-05

Applicant: DEGUSSA

Inventor： WERLE PETER ,  GEISSLER BERND ,  TRAGESER MARTIN

IPC: B01J19/18 ,  B01J19/24 ,  C02F1/50 ,  C02F1/68

Abstract: Flowing waters are dosed with acrolein to prevent excessive plant and algal growth. In order to avoid transport of acrolein, the process according to the invention, using the apparatus according to the invention, generates acrolein at the site of use by deacetylization of an acrolein acetal in the presence of an aqueous mineral acid, for which no electrical energy is required. According to the invention an acrolein acetal solution and an aqueous mineral acid solution are transported from pressure-resistant storage vessels (1) and (2) into a mixing chamber (11) by applying a pressure from a pressurized gas cylinder (3) and the mixture is passed through a deacetalization reactor; the reactor to be used comprises a tubular (14) and a vessel-like (15) part.

公开(公告)号：FI915682A0

公开(公告)日：1991-12-02

申请号：FI915682

申请日：1991-12-02

Applicant: DEGUSSA

Inventor： WERLE PETER ,  TRAGESER MARTIN ,  PIANA HERMANN

IPC: C02F1/50 ,  C07C45/51 ,  C07C47/22 ,  A01N

Abstract: The direct dosing of aqueous solutions with acrolein as a microbiocide is problematic because of the associated laborious safety measures and the hitherto known use of reaction mixtures from the deacetalisation has proven not to be very economical. … According to the invention, aqueous solutions can be dosed in a simple, safe and economical manner with acrolein at a sufficient concentration level to be active as a biocide by cleaving acrolein acetals in the aqueous phase in the presence of a strongly acid deacetalisation catalyst into acrolein and the alcohol component, continuously removing the resulting acrolein from the deacetalisation mixture and transferring the acrolein into the aqueous solution to be dosed using an inert gas stream or a liquid jet pump with the aqueous solution to be dosed as the jet liquid.

公开(公告)号：CA1245045A

公开(公告)日：1988-11-22

申请号：CA437564

申请日：1983-09-26

Applicant: DEGUSSA

Inventor： WERLE PETER ,  MERK WOLFGANG

IPC: C08L27/00 ,  C07C31/24 ,  C08K5/05 ,  C08K5/057 ,  C08K9/00 ,  C08K9/02 ,  C08L1/00 ,  C08L27/06 ,  C09K9/02

Abstract: Pentaerythritol is treated with a strongly alkaline reacting substance at temperatures ranging approximately from 180 to 220.degree.C. The pentaerythritol thus treated serves as a costabllizer for polyvinyl containing chloride and as such it has excellent properties. Not only can the pentaerythritol thus treated be homogeneously incorporated in polyvinyl chloride without difficulties but it has an effect which is so favourable that the application of a relatively small amount of this costablilzer is sufficient.

公开(公告)号：DK147263C

公开(公告)日：1984-11-05

申请号：DK6076

申请日：1976-01-08

Applicant: DEGUSSA

Inventor： WERLE PETER ,  GRAEF HANS ,  WALTER ERWIN

IPC: C08L23/00 ,  C08J3/20 ,  C08J3/22 ,  C08K9/00 ,  C08K9/04 ,  C08L1/00 ,  C08L27/00 ,  C08L33/00 ,  C08L33/02 ,  C08L67/00 ,  C08L77/00 ,  C08L101/00 ,  C09C3/10

Abstract: There is disclosed a process for the production of a pigment-synthetic resin concentrate containing an organic solvent soluble polymer and carbon black having quicker distributability in organic media such as lacquer binding media, printing inks, etc., such concentrates being especially suitable for the production of molded parts, castings, films and/or synthetic fibers, the process comprising continuously homogenizing in a mixer powdery pigment and powdery synthetic resin jointly with an organic solvent in a given case also containing plasticizer, stabilizer and/or dispersing acid, dispersing the pigment in the mixture, removing the solvent from the dispersion, comminuting the resulting pigment-synthetic resin concentrated and grinding the product.

公开(公告)号：DK147263B

公开(公告)日：1984-05-28

申请号：DK6076

申请日：1976-01-08

Applicant: DEGUSSA

Inventor： WERLE PETER ,  GRAEF HANS ,  WALTER ERWIN

IPC: C08L23/00 ,  C08J3/20 ,  C08J3/22 ,  C08K9/00 ,  C08K9/04 ,  C08L1/00 ,  C08L27/00 ,  C08L33/00 ,  C08L33/02 ,  C08L67/00 ,  C08L77/00 ,  C08L101/00 ,  C09C3/10

Abstract: There is disclosed a process for the production of a pigment-synthetic resin concentrate containing an organic solvent soluble polymer and carbon black having quicker distributability in organic media such as lacquer binding media, printing inks, etc., such concentrates being especially suitable for the production of molded parts, castings, films and/or synthetic fibers, the process comprising continuously homogenizing in a mixer powdery pigment and powdery synthetic resin jointly with an organic solvent in a given case also containing plasticizer, stabilizer and/or dispersing acid, dispersing the pigment in the mixture, removing the solvent from the dispersion, comminuting the resulting pigment-synthetic resin concentrated and grinding the product.

公开(公告)号：IT8048659D0

公开(公告)日：1980-05-13

申请号：IT4865980

申请日：1980-05-13

Applicant: DEGUSSA ,  GERMANIA

Inventor： WERLE PETER

IPC: C07C45/00 ,  C07C47/058 ,  C07C67/00 ,  C07D251/18 ,  C09K15/30 ,  C07D

公开(公告)号：ES2585205T3

公开(公告)日：2016-10-04

申请号：ES07786737

申请日：2007-06-14

Applicant: EVONIK DEGUSSA GMBH

Inventor： WERLE PETER ,  KRIMMER HANS-PETER ,  SCHMIDT MANFRED ,  STADTMÜLLER KLAUS ,  TRAGESER MARTIN

IPC: C07D251/34

Abstract: Procedimiento para la preparación de isocianurato de trialilo (TAIC), que comprende transponer cianurato de trialilo (TAC) en presencia de una sal de Cu a una temperatura de al menos 90ºC, caracterizado por que son introducidos de forma continua TAC y una sal de Cu2+ en una cantidad de 0,01 a 1% en peso de Cu2+, basado en el TAC, de forma separada entre sí o en forma de una mezcla que comprende estos componentes, en una mezcla de reacción conteniendo TAIC, la cual ha sido preparada a al menos 90ºC por medio de la transposición del TAC en presencia de una sal de Cu2+ y que no ha sido enfriada a continuación por debajo de 90ºC; la transposición es realizada bajo estas condiciones al tiempo que se mantiene una temperatura en el intervalo de 90 a 160ºC y es descargada de manera continua una cantidad de mezcla de reacción que corresponde a la de adición, siendo aislado el TAIC de la misma.

公开(公告)号：ES2399913T3

公开(公告)日：2013-04-04

申请号：ES06777550

申请日：2006-07-03

Applicant: EVONIK DEGUSSA GMBH

Inventor： WERLE PETER ,  TRAGESER MARTIN ,  BECK MICHAEL

IPC: C07D251/38

Abstract: Método para la producción de 2,4,6-trimercapto-1,3,5-triazina por acidificación de una solución de las salescorrespondientes de 2,4,6-trimercapto-1,3,5-triazina en solución acuosa, caracterizado porque durante la operación de acidificación se mantiene un intervalo de pH de 1,5 a 2,5, y se carga una solución acuosaajustada a un pH de aproximadamente 2, a lo que se añade, con control de pH, una solución de las salescorrespondientes de 2,4,6-trimercapto-1,3,5-triazina en solución acuosa y las sales de 2,4,6-trimercapto-1,3,5-triazina se acidifican en presencia de pequeñas cantidades de una poliacrilamida orgánica de peso molecular alto.

公开(公告)号：CA2657173A1

公开(公告)日：2008-01-24

申请号：CA2657173

申请日：2007-06-25

Applicant: EVONIK DEGUSSA GMBH

Inventor： HAEFNER VOLKER ,  WERLE PETER ,  SUCHSLAND HELMUT

IPC: C07D251/34

Abstract: The invention relates to an improved process for preparing triallyl cyanu rate (TAC) by reacting cyanuric chloride with allyl alcohol in the presence of an alkali metal acid acceptor and in the absence of an organic solvent ot her than allyl alcohol. According to the invention, TAC is obtained in over 99% purity with an APHA colour number below 10 in a yield of over 90% when 3 .9 to 6.0 mol of allyl alcohol and 3.0 to 3.2 equivalents of acid acceptor a re used per mole of cyanuric chloride, cyanuric chloride and acid acceptor a re added simultaneously or successively to anhydrous or at least 50% by weig ht aqueous allyl alcohol, and the reaction is performed in one or more stage s at a temperature in the range of -5 to +50°C.

公开(公告)号：CA2225294C

公开(公告)日：2007-09-11

申请号：CA2225294

申请日：1997-12-19

Applicant: DEGUSSA

Inventor： KRIMMER HANS-PETER ,  WERLE PETER ,  TRAGESER MARTIN

IPC: C02F1/50 ,  C08G2/14 ,  A01N35/02 ,  C08F116/34

Abstract: Acrolein-releasing emulsion homopolymers release acrolein in aqueous systems. They are produced by adding acrolein, at least 95% by weight pure, to a solution of an alkali hydroxide, with the temperature not exceeding 25 .degree.C during the addition, and then adjusting the pH to 5 to 7 by adding a mineral acid.