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公开(公告)号：FI890100A
公开(公告)日：1989-07-29
申请号：FI890100
申请日：1989-01-09
Applicant: DEGUSSA
Inventor： SUESS HANS ULRICH , MEIER JUERGEN , HELMLING OSWALD
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公开(公告)号：CA2205597C
公开(公告)日：2004-01-20
申请号：CA2205597
申请日：1995-10-23
Applicant: DEGUSSA
Inventor： HELMLING OSWALD , WERLE PETER , JAKOB HARALD , TRAGESER MARTIN
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 pK s 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, furnaric acid or maleic acid or a mixture of mono and di(C1 to C3)alkylphosphate and additionally a nonionic surfactant.
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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
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.
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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
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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
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.
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Patent Agency Ranking
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
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.
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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
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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.
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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.
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公开(公告)号：CA2142220A1
公开(公告)日：1995-08-12
申请号：CA2142220
申请日：1995-02-10
Applicant: DEGUSSA
Inventor： WERLE PETER , HOEPP MATHIAS , HELMLING OSWALD , ARNTZ DIETRICH
IPC: A01N35/02 , C08F16/34 , C08F116/34 , C08L29/00
Abstract: The acrolein polymer is characterised by the physicochemical data: Weight average wherein ni means number of mol and Mi means molecular weight Mw: 2000 - 6000 D Carbonyl content: 0.5 - 5 mol/kg of polymer It is produced by simultaneously adding acrolein and catalyst to a reaction medium in a vessel in such a manner that the temperature of the reaction medium does not exceed 25.degree.C and the pH value of the reaction medium is 10 to 11, the mixture is stirred on completion of addition and the acrolein polymer separated. The acrolein polymer is used in biocidal agents.
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