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公开(公告)号：NO943643A
公开(公告)日：1995-04-03
申请号：NO943643
申请日：1994-09-30
Applicant: HOECHST AG
Inventor： STANKOWIAK ACHIM , POLLMANN KLAUS , KAPFINGER JOSEF
CPC classification number: C09K3/185
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公开(公告)号：NO942893A
公开(公告)日：1995-02-06
申请号：NO942893
申请日：1994-08-04
Applicant: HOECHST AG
Inventor： POLLMANN KLAUS , EYSMONDT JORG VON
CPC classification number: C09K3/185
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公开(公告)号：NO934657A
公开(公告)日：1994-06-20
申请号：NO934657
申请日：1993-12-16
Applicant: HOECHST AG
Inventor： HIMMRICH JOHANNES , SCHIMMEL GUNTHER , POLLMANN KLAUS
CPC classification number: C09K3/185
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公开(公告)号：NO951437A
公开(公告)日：1995-10-16
申请号：NO951437
申请日：1995-04-12
Applicant: HOECHST AG
Inventor： POLLMANN KLAUS
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公开(公告)号：CA2147046C
公开(公告)日：2003-12-02
申请号：CA2147046
申请日：1995-04-13
Applicant: HOECHST AG
Inventor： POLLMANN KLAUS
Abstract: The de-icing and anti-icing composition described, which is based on glycols and water, contains as thickener water-soluble crosslinked copolymers of acrylic acid or methacrylic acid as principal monomer and an ester or amide of acrylic acid or methacrylic acid having a long alkyl radical in the ester group and one or two long alkyl radicals in the amide group as secondary monomer. These copolymers are used to produce type II de-icing and anti-icing compositions for aircraft, which have a long holdover time and at the same time, owing to the pronounced pseudoplasticity of the copolymer, outstanding flow-off characteristics.
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Patent Agency Ranking
公开(公告)号：CA2188096C
公开(公告)日：2003-05-06
申请号：CA2188096
申请日：1996-10-17
Applicant: HOECHST AG
Inventor： POLLMANN KLAUS , KAPFINGER JOSEF
Abstract: The composition described includes as thickener water- soluble crosslinked acrylic homopolymers having a mean molecular weight of from 750,000 to 1,250,000 and a viscosity, in the form of a 0.5% strength by weight aqueous solution with a pH of 7.0 and a temperature of 20.degree.C, of from 1000 to 13,000 mPa-s, measured with a Brookfield viscometer at 20 rpm, and in addition thereto from 0.02 to 1.5% by weight of at least one nonionic surfactant formed from an alcohol having 6 to 22 carbon atoms which is reacted with from 1 to 10 molecules of a low molecular mass alkylene oxide, and from 0.03 to 1% by weight of at least one water-soluble salt compound of an inorganic acid or a carboxylic acid or a mixture thereof. The deicing liquid described is notable for a long holdover time and good flowoff behavior.
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公开(公告)号：NO942893L
公开(公告)日：1995-02-06
申请号：NO942893
申请日：1994-08-04
Applicant: HOECHST AG
Inventor： POLLMANN KLAUS , EYSMONDT JORG VON
Abstract: According to the method described, the used aircraft deicing fluid is first subjected to conventional filtration for separating off undissolved substances and then to an ultrafiltration for separating off, in particular, polymeric thickeners. The ultrafiltration permeate is further treated with ionic exchangers and water is then separated off by distillation from the eluate obtained essentially comprising glycol and water and thus the glycol level is brought to the desired value. A new aircraft deicing composition can be prepared with the glycol/water solution thus obtained by adding the additional necessary components to the glycol/water solution.
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公开(公告)号：NO943643D0
公开(公告)日：1994-09-30
申请号：NO943643
申请日：1994-09-30
Applicant: HOECHST AG
Inventor： STANKOWIAK ACHIM , POLLMANN KLAUS , KAPFINGER JOSEF
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公开(公告)号：NO964414D0
公开(公告)日：1996-10-17
申请号：NO964414
申请日：1996-10-17
Applicant: HOECHST AG
Inventor： POLLMANN KLAUS , KAPFINGER JOSEF
Abstract: Polymer-thickened deicing and antiicing agent for aircraft is based on (a) 35-70 wt.% alkylene glycol(s) with 2-3 carbon (C) atoms and/or oxyalkylene glycol(s) with 4-6 C; (b) 0.05-1.5 wt.% water-soluble crosslinked (meth)acrylic acid homopolymer(s) with a molecular weight of 750000-1250000 and Brookfield viscosity of 1000-13000 mPa.s at 20 rpm in 0.5 wt.% aqueous solution at 20 degrees C and pH 7.0; (c) 0.02-1.5 wt.% nonionic surfactant(s), comprising a 6-22 C alcohol reacted with 1-10 molecules of a low-molecular alkylene oxide; (d) 0.03-1 wt.% water-soluble salt(s) or an inorganic and/or carboxylic acid; (e) 0.01-1 wt.% imidazole and/or triazole compound(s) as corrosion inhibitor; and (f) water to a total of 100 wt.%.
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公开(公告)号：NO951437D0
公开(公告)日：1995-04-12
申请号：NO951437
申请日：1995-04-12
Applicant: HOECHST AG
Inventor： POLLMANN KLAUS
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