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    PROCESS AND DEVICE FOR DRYING A LIQUID LAYER APPLIED TO A MOVING CARRIER MATERIAL
    42.
    发明专利
    PROCESS AND DEVICE FOR DRYING A LIQUID LAYER APPLIED TO A MOVING CARRIER MATERIAL 未知

    公开(公告)号：AU624817B2

    公开(公告)日：1992-06-25

    申请号：AU3472589

    申请日：1989-05-10

    Applicant: HOECHST AG

    Inventor： DURST FRANZ ,  MACK GERHARD ,  INTERTHAL WERNER ,  STROSZYNSKI JOACHIM ,  LEHMANN PETER ,  HAAS RAIMUND ,  HULTZSCH GUENTER ,  DAMMANN MANFRED

    IPC: F26B3/02 ,  B05C9/14 ,  B05D3/02 ,  B05D3/04 ,  F26B13/10 ,  F26B21/00 ,  F26B21/12 ,  F26B15/04 ,  G03C1/74 ,  G03C11/16

    Abstract: An apparatus for drying a liquid layer deposited on a carrier material which is moved through a drying zone, which liquid layer contains evaporable solvent components and non-evaporable components, comprises a drying apparatus (1) with a drying channel (2), through which the carrier material band (4) runs in the longitudinal direction, on which band the liquid layer to be dried is deposited. The drying channel has a gas/air permeable channel covering surface (7), through which a gas flow, in particular a heated air flow, flows into the drying channel. The channel covering surface (7) is inclined in relation to the channel bottom surface (3) which runs horizontally. The drying channel (2) is adjoined by a gas exchange chamber (15) which contains a fan (12), the fan outlet (16) of which is directed towards a heat exchanger in a partition wall (10) between the gas exchange chamber (15) and a drying chamber (5) situated above the drying channel (2). The gas exchange chamber (15) contains a choke device (13 and 14 respectively) in its bottom surface (18) and in its upper gas inlet (19) respectively. The drying apparatus (1) further contains an exhausting fan (9) which is arranged above the covering surface of a through-channel (20) and is connected to the through-channel via a suction opening. In the outlet (11) of the exhausting fan (9) there is also a choke device (8). … …

    AQUEOUS FUNCTIONAL FLUIDS BASED ON POLYMERS
    46.
    发明专利
    AQUEOUS FUNCTIONAL FLUIDS BASED ON POLYMERS 未知

    公开(公告)号：ZA85965B

    公开(公告)日：1985-09-25

    申请号：ZA85965

    申请日：1985-02-08

    Applicant: HOECHST AG

    Inventor： HAAS RAIMUND ,  ENGEL DIETER ,  HELWERTH RAINER

    IPC: C08F220/00 ,  C08F220/04 ,  C08F220/06 ,  C08F220/10 ,  C08F220/12 ,  C08F222/02 ,  C10M173/02 ,  C10N30/02 ,  C10N30/06 ,  C10N30/12 ,  C10N40/08 ,  C10N40/20 ,  C10M ,  C23F

    Abstract: Aqueous functional fluids, in particular hydraulic and metal-working fluids, containing a copolymer which is prepared by emulsion or solution copolymerization, initiated by free radicals, of unsaturated, copolymerizable monomers, the copolymers being built up from: (a) 1-60% by weight of ethylenically unsaturated carboxylic acids, (b) 0.5-30% by weight of a surface-active unsaturated ester, (c) 30-85% by weight of methacrylic acid esters or acrylic acid esters of aliphatic (C1-C18)-alcohols, (d) 0-40% by weight of other ethylenically unsaturated comonomers, (e) 0-3% by weight of polyethylenically unsaturated compounds, and (f) 0-5% by weight of molecular weight regulators, and, if appropriate, the free acid groups of the copolymers subsequently having been partly or completely neutralized by addition of bases, and converted into water-soluble or colloidally water-dispersible copolymer salts.

    47.
    发明专利
    未知

    公开(公告)号：NO840783L

    公开(公告)日：1984-09-03

    申请号：NO840783

    申请日：1984-03-01

    Applicant: HOECHST AG

    Inventor： HAAS RAIMUND ,  OHLENDORF DIETER ,  INTERTHAL WERNER

    IPC: C09K3/00 ,  C09K8/86 ,  C09K23/18 ,  E21B43/22 ,  E21B

    Abstract: Method of controlling the mobility of aqueous flows through fissures, slits or pores, in particular of flooding waters in tertiary production of crude oil, wherein cationic surfactants which, on measurement of the electric birefringence with a pulsed rectangular electrical field in pure aqueous solutions, give a measurement signal, from the decrease of which a relaxation time of 0.01 mu s to 10 ms, in particular of 0.1 mu s to 2 ms, results, are added to the aqueous medium. Preferred suitable cationic compounds are those of the general formula R1-K+A- in which R1 denotes C12-C26-alkyl or C12-C26-alkenyl, K+ denotes a group of the formula R2 denotes C1-C3-alkyl, preferably methyl, R'2 denotes C1-C3-alkyl, preferably methyl, R''2 denotes C1-C3-alkyl, preferably methyl, or R''2 denotes (CH2CH2O)xH, where x denotes from 1 to 3, preferably 1 to 2, and A- denotes an anion of the following formulae: SCN31, R3SO3-, where R3 is C6-C9-alkyl or -alkenyl and the sum of the carbon atoms in R1 and R3 should be at least 21; +TR where Hal is chlorine or bromine, R4 is C1-C5-alkyl, C2-C5-alkenyl or C1-C5-alkoxy in positions 3, 4, 5 and 6 and R5 is hydrogen or hydroxyl in positions 2 and 3 relative to the carboxyl group, or where R6 is COO- or SO3- and R7 is hydrogen or methyl.

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