公开(公告)号：PT1006084E

公开(公告)日：2004-07-30

申请号：PT99122726

申请日：1999-11-16

Applicant: DEGUSSA

Inventor： HUSS MICHAEL ,  FUCHS RAINER ,  WERLE PETER

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：AU768428B2

公开(公告)日：2003-12-11

申请号：AU6305899

申请日：1999-12-03

Applicant: DEGUSSA

Inventor： FUCHS RAINER ,  HUSS MICHAEL ,  WERLE PETER

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：CA2291519A1

公开(公告)日：2000-06-04

申请号：CA2291519

申请日：1999-12-03

Applicant: DEGUSSA

Inventor： WERLE PETER ,  HUSS MICHAEL ,  FUCHS RAINER

IPC: C02F1/50 ,  C02F1/72 ,  A01N37/16 ,  A01N59/00

Abstract: The process according to the invention prevents the transfer of harmful organisms of zooplankton, including the epifauna thereof, and of phytoplankton including the resting stages thereof, which are taken up with the ballast water of ships at one location and discharged in another. According to the invention, the organisms are substantially destroyed by the addition of an agent containing a water-soluble percarboxylic acid with 1 to 6 carbon atoms, particularly an aqueous solution containing peracetic acid and/or performic acid and hydrogen peroxide, in a quantity of 0.1 to 200 mg of percarboxylic acid per litre of ballast water, to the ballast water and allowing it to react before discharge. According to a preferred embodiment, a cyanide is added to the ballast water in addition to the percarboxylic acid.

公开(公告)号：BR9607392A

公开(公告)日：1997-11-25

申请号：BR9607392

申请日：1996-02-01

Applicant: DEGUSSA

Inventor： WERLE PETER ,  TRAGESER MATIN ,  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：FI97440C

公开(公告)日：1996-12-27

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 ,  A01N35/02

公开(公告)号：NO179473C

公开(公告)日：1996-10-16

申请号：NO914733

申请日：1991-12-02

Applicant: DEGUSSA

Inventor： WERLE PETER ,  TRAGESER MARTIN ,  PIANA HERMANN

IPC: C02F1/50 ,  C07C45/51 ,  C07C47/22 ,  A01N35/02

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：AU4539896A

公开(公告)日：1996-09-04

申请号：AU4539896

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：CA2205597A1

公开(公告)日：1996-05-30

申请号：CA2205597

申请日：1995-10-23

Applicant: DEGUSSA

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

IPC: A01N35/02 ,  A01N43/28 ,  C07C43/303 ,  C07C45/51 ,  C07C45/59 ,  A01N43/24

Abstract: The direct handling of acrolein for combating microbial, plant and animal parasites in water and soil is problematic owing to the potential risks posed by acrolein. According to the invention, an easy-to-handle acrolein-releasing composition is used, the acrolein being released at the site of use owing to contact with water. This composition contains (i) an acrolein acetal having a C1 to C6 alcohol with 1 to 4 hydroxyl groups and (ii) a chemically compatible acid which is soluble therein and has a pKs value of less than 4 and (iii) is anhydrous. A preferred composition contains as acetal 2-vinyl-1,3-dioxolane, as acid, anhydrous oxalic acid, fumaric acid or maleic acid or a mixture of mono and di(C1 to C3)alkylphosphate and additionally a non-ionic surfactant.

公开(公告)号：ZA9501114B

公开(公告)日：1995-10-16

申请号：ZA9501114

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 ,  A01N ,  C06M ,  C09D ,  C09H ,  C09J ,  C09K ,  C10M ,  C11D ,  C14C

CPC classification number: C08F116/34 ,  A01N35/02

公开(公告)号：NO950512D0

公开(公告)日：1995-02-10

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.