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公开(公告)号：CZ287716B6
公开(公告)日：2001-01-17
申请号：CZ240594
申请日：1994-09-30
Applicant: HOECHST AG
Inventor： STANKOWIAK ACHIM DR , POELLMANN KLAUS DR , KAPFINGER JOSEF
Abstract: In the present invention there are disclosed defrosters and antiicing agents for airplanes based on glycol and water, consisting of (a) 60 to 97 percent by weight at least one glycol being selected from a group comprising alkylene glycols containing 2 to 3 carbon atoms and oxalkylene glycols containing 4 to 6 carbon atoms, (b) 0.01 to 1 percent by weight at least one non-ionic tenside being selected from a group comprising aliphatic alcohols having 6 to 24 carbon atoms and these aliphatic alcohols alkoxylated with low-molecular alkoxides with 1 to 10 alkoxide units, (c) 0.01 to 0,8 percent by weight at least one corrosion inhibitor and (d) water being balance to 100 percent by weight, whereby the weight percentages are based on the agent total weight. The efficiency of the agents ("hold over time") increases by addition of anionic tenside (b') being selected from a group comprising alkali metal alkylaryl sulfonates with one or more sulfonate groups, one or more alkyl groups containing 5 to 18 carbon atoms and one or more benzene rings in the amount of 0.01 to 1 percent by weight to the aforementioned non-ionic tenside, whereby their weight ratio should be 1:(0,5 to 1).
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公开(公告)号：DE19648716A1
公开(公告)日：1997-12-11
申请号：DE19648716
申请日：1996-11-25
Applicant: HOECHST AG
Inventor： STANKOWIAK ACHIM DR , BECKER WILFRIED DR
Abstract: The invention relates to a defrosting agent comprising substantially: (a) 87 to 99.45 wt % of an alkali metal acetate or an alkali metal formate or a mixture thereof; (b) 0.5 to 10 wt % of an alkali metal silicate; and (c) 0.05 to 3 wt % of an alkali metal phosphate. Said agent can be used in the form of a solid (powder, granules and the like) or in the form an aqueous solution, and provides a short thawing period and protection against corrosion, in particular with respect to magnesium.
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公开(公告)号：DE59105254D1
公开(公告)日：1995-05-24
申请号：DE59105254
申请日：1991-10-28
Applicant: HOECHST AG
Inventor： STANKOWIAK ACHIM DR , KAPFINGER JOSEF , BETTERMANN GERHARD DR
Abstract: The deicing agent described comprises an aqueous solution of at least one alkali metal acetate or at least one alkaline earth metal acetate or a mixture of the two, and water as the principal components, and from 0.01 to 1% by weight of at least one water-soluble triazole compound or at least one water-soluble imidazole compound or a mixture of the two, and optionally from 0.01 to 0.5% by weight of at least one alkali metal phosphate as inhibitors. The process described for melting snow and ice on traffic surfaces comprises applying the novel deicing agent in an effective amount to the ice- and/or snow-covered surfaces to be treated.
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公开(公告)号：DE3714754A1
公开(公告)日：1988-11-10
申请号：DE3714754
申请日：1987-05-02
Applicant: HOECHST AG
Inventor： STANKOWIAK ACHIM DR , STREITBERGER HORST
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公开(公告)号：AT121440T
公开(公告)日：1995-05-15
申请号：AT91118345
申请日：1991-10-28
Applicant: HOECHST AG
Inventor： STANKOWIAK ACHIM DR , KAPFINGER JOSEF , BETTERMANN GERHARD DR
Abstract: The deicing agent described comprises an aqueous solution of at least one alkali metal acetate or at least one alkaline earth metal acetate or a mixture of the two, and water as the principal components, and from 0.01 to 1% by weight of at least one water-soluble triazole compound or at least one water-soluble imidazole compound or a mixture of the two, and optionally from 0.01 to 0.5% by weight of at least one alkali metal phosphate as inhibitors. The process described for melting snow and ice on traffic surfaces comprises applying the novel deicing agent in an effective amount to the ice- and/or snow-covered surfaces to be treated.
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Patent Agency Ranking
公开(公告)号：DE4333646A1
公开(公告)日：1995-04-06
申请号：DE4333646
申请日：1993-10-02
Applicant: HOECHST AG
Inventor： STANKOWIAK ACHIM DR , POELLMANN KLAUS DR , KAPFINGER JOSEF
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公开(公告)号：DE4221661A1
公开(公告)日：1994-01-05
申请号：DE4221661
申请日：1992-07-02
Applicant: HOECHST AG
Inventor： POELLMANN KLAUS DR , STANKOWIAK ACHIM DR , KAPFINGER JOSEF
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公开(公告)号：AT77636T
公开(公告)日：1992-07-15
申请号：AT88106785
申请日：1988-04-28
Applicant: HOECHST AG
Inventor： STANKOWIAK ACHIM DR , STREITBERGER HORST
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公开(公告)号：CS330791A3
公开(公告)日：1992-05-13
申请号：CS330791
申请日：1991-10-31
Applicant: HOECHST AG
Inventor： STANKOWIAK ACHIM DR , KAPFINGER JOSEF , BETTERMANN GERHARD DR
Abstract: The deicing agent described comprises an aqueous solution of at least one alkali metal acetate or at least one alkaline earth metal acetate or a mixture of the two, and water as the principal components, and from 0.01 to 1% by weight of at least one water-soluble triazole compound or at least one water-soluble imidazole compound or a mixture of the two, and optionally from 0.01 to 0.5% by weight of at least one alkali metal phosphate as inhibitors. The process described for melting snow and ice on traffic surfaces comprises applying the novel deicing agent in an effective amount to the ice- and/or snow-covered surfaces to be treated.
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公开(公告)号：DE4034792A1
公开(公告)日：1992-05-07
申请号：DE4034792
申请日：1990-11-02
Applicant: HOECHST AG
Inventor： STANKOWIAK ACHIM DR , KAPFINGER JOSEF , BETTERMANN GERHARD DR
Abstract: The deicing agent described comprises an aqueous solution of at least one alkali metal acetate or at least one alkaline earth metal acetate or a mixture of the two, and water as the principal components, and from 0.01 to 1% by weight of at least one water-soluble triazole compound or at least one water-soluble imidazole compound or a mixture of the two, and optionally from 0.01 to 0.5% by weight of at least one alkali metal phosphate as inhibitors. The process described for melting snow and ice on traffic surfaces comprises applying the novel deicing agent in an effective amount to the ice- and/or snow-covered surfaces to be treated.
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