公开(公告)号：DE19857151A1

公开(公告)日：2000-06-15

申请号：DE19857151

申请日：1998-12-11

Applicant: DEGUSSA

Inventor： WERLE PETER ,  MERZ FRIEDHELM ,  J DIAMETER RGENSEN JUDITH N ,  TRAGESER MARTIN

IPC: A61K9/08 ,  A61K9/00 ,  A61K31/155 ,  A61K47/22 ,  A61K47/26 ,  A61P31/02 ,  C07K19/00

Abstract: Powdered, water-soluble mixture (A) comprises: (i) chlorhexidine base (1; 1,1'-hexamethylene-bis(4-chlorophenyl)biguanide); (ii) at least one sugar acid or its lactone (2); and (iii) 0-10 wt.% auxiliaries. The mole ratio of (1):(2) is 1:2 or more. (2) is gluconic acid, gluconolactone, lactobionic acid (I), D-galacton- psi -lactone (II), L-mannonic acid- psi -lactone (III), D-(-)-gulonic acid- psi -lactone (IV), D-(+)-galacturonic acid (V) or alpha -D-heptagluconic acid- psi -lactone (VI). Independent claims are also included for the following: (a) aqueous solution containing at least 0.01% of a salt of (1) with any of (I)-(VI); and (b) water-soluble salt of (1) with any of (I)-(V), D-galactonic acid, L-mannonic acid, gulonic acid or alpha -D-heptagluconic acid.

公开(公告)号：AU6305899A

公开(公告)日：2000-06-08

申请号：AU6305899

申请日：1999-12-03

Applicant: EVONIK DEGUSSA GMBH

Inventor： FUCHS RAINER ,  WERLE PETER ,  HUSS MICHAEL

IPC: C02F1/50 ,  C02F1/72

Abstract: The agent contains an aqueous percarboxylic acid with 1 to 6 carbon atoms as peroxygen compound, to which ballast is added water in an amount corresponding to 0.1 to 200 mg percarboxylic acid per liter. Process for avoiding contamination of navigatable body of water with organisms selected from plankton, e.g. epifauna and photo plankton including cystenes, comprises adding reagent containing peroxygen compound to the ballast water, allowing the reagent to react until the organisms are destroyed and feeding the treated water back into the body of water.

公开(公告)号：ES2133929T3

公开(公告)日：1999-09-16

申请号：ES96901342

申请日：1996-02-01

Applicant: DEGUSSA

Inventor： WERLE PETER ,  TRAGESER MARTIN ,  HELMLING OSWALD ,  JAKOB HARALD

IPC: A01N35/02 ,  C02F1/50 ,  C07C45/59 ,  C09K23/00

Abstract: The potential hazards of acraldhyde make its direct handling for combatting microbial, vegetable and animal pests in the water and ground difficult. According to the invention, use is made of a composition releasing acraldhyde in contact with water at the point of use. The composition of the invention contains an acraldehyde acetal, preferably 2-vinyl-2, 3-dioxolane, and a compound hydrolysable to an acide with a pKs of lower than 4, especially one from the range of organic acid anhydrides, organic acid halides and inorganic halogen compounds forming hydrogen halides on hydrolysis.

公开(公告)号：DE59506185D1

公开(公告)日：1999-07-15

申请号：DE59506185

申请日：1995-10-23

Applicant: DEGUSSA

Inventor： WERLE PETER ,  HELMLING OSWALD ,  JAKOB HARALD ,  TRAGESER MARTIN

IPC: A01N35/02 ,  A01N43/28 ,  C02F1/50 ,  C07C43/303 ,  C07C45/51 ,  C07C45/59

公开(公告)号：DE59601879D1

公开(公告)日：1999-06-17

申请号：DE59601879

申请日：1996-02-01

Applicant: DEGUSSA

Inventor： WERLE PETER ,  TRAGESER MARTIN ,  HELMLING OSWALD ,  JAKOB HARALD

IPC: A01N35/02 ,  C02F1/50 ,  C07C45/59 ,  C09K23/00

Abstract: The potential hazards of acraldhyde make its direct handling for combatting microbial, vegetable and animal pests in the water and ground difficult. According to the invention, use is made of a composition releasing acraldhyde in contact with water at the point of use. The composition of the invention contains an acraldehyde acetal, preferably 2-vinyl-2, 3-dioxolane, and a compound hydrolysable to an acide with a pKs of lower than 4, especially one from the range of organic acid anhydrides, organic acid halides and inorganic halogen compounds forming hydrogen halides on hydrolysis.

公开(公告)号：NO973148D0

公开(公告)日：1997-07-07

申请号：NO973148

申请日：1997-07-07

Applicant: DEGUSSA

Inventor： WERLE PETER ,  TRAGESER MARTIN ,  HELMLING OSWALD ,  JAKOB HARALD

IPC: A01N35/02 ,  C02F1/50 ,  C07C45/59 ,  C09K23/00

Abstract: The potential hazards of acraldhyde make its direct handling for combatting microbial, vegetable and animal pests in the water and ground difficult. According to the invention, use is made of a composition releasing acraldhyde in contact with water at the point of use. The composition of the invention contains an acraldehyde acetal, preferably 2-vinyl-2, 3-dioxolane, and a compound hydrolysable to an acide with a pKs of lower than 4, especially one from the range of organic acid anhydrides, organic acid halides and inorganic halogen compounds forming hydrogen halides on hydrolysis.

公开(公告)号：NO972216L

公开(公告)日：1997-07-07

申请号：NO972216

申请日：1997-05-14

Applicant: DEGUSSA

Inventor： WERLE PETER ,  HELMLING OSWALD ,  JAKOB HARALD ,  TRAGESER MARTIN

IPC: A01N35/02 ,  A01N43/28 ,  C07C43/303 ,  C07C45/51 ,  C07C45/59 ,  C02F1/50

公开(公告)号：AU666627B2

公开(公告)日：1996-02-15

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：ZA951114B

公开(公告)日：1995-10-16

申请号：ZA951114

申请日：1995-02-10

Applicant: DEGUSSA

Inventor： WERLE PETER ,  HOEPP MATHIAS ,  HELMLING OSWALD ,  ARNTZ DIETRICH

IPC: A01N35/02 ,  C08F16/34 ,  C08F116/34 ,  C08F ,  C09J ,  C09K ,  C09D ,  C06M ,  C09H ,  A01N ,  C10M ,  C14C ,  C11D

Abstract: Acrolein (2-propenal) polymers (I) with an average wt. (Mw) of 2000-6000 (see calculation) and a carbonyl content of 0.5-5 mol/kg are new. Also claimed are:(1) prodn. of (I) by adding acrolein and a catalyst simultaneously to a reaction medium having a temp. of ≤ 25 degrees C and a pH of 10-11, stirring the mixt., and separating (I);(2) preservation of materials by adding (I); and(3) biocidal compsns. contg. (I). Mw = ni Mi / ni Mi where Mw = average weight, ni = molar number and Mi = molecular weight.

公开(公告)号：NO950512L

公开(公告)日：1995-08-14

申请号：NO950512

申请日：1995-02-10

Applicant: DEGUSSA

Inventor： WERLE PETER ,  HOPP MATHIAS ,  HELMLING OSWALD ,  ARNTZ DIETRICH

IPC: A01N35/02 ,  C08F16/34 ,  C08F116/34

Abstract: Acrolein (2-propenal) polymers (I) with an average wt. (Mw) of 2000-6000 (see calculation) and a carbonyl content of 0.5-5 mol/kg are new. Also claimed are:(1) prodn. of (I) by adding acrolein and a catalyst simultaneously to a reaction medium having a temp. of ≤ 25 degrees C and a pH of 10-11, stirring the mixt., and separating (I);(2) preservation of materials by adding (I); and(3) biocidal compsns. contg. (I). Mw = ni Mi / ni Mi where Mw = average weight, ni = molar number and Mi = molecular weight.