Abstract:
A process for producing leather using one or more reaction products of (a) triamines or higher amines with (b) at least one compound of the general formula (I) where R 1 is selected from hydrocarbon radicals having up to 5000 carbon atoms, unbranched or branched, saturated or having from one up to three C-C double bonds, and A 1 from groups capable of reaction with amines.
Abstract:
A process for the preparation of a readily water-redispersible polymer powder by spray drying of an aqueous polymer dispersion in the presence of a novel spray drying assistant.
Abstract:
A process for the preparation of aqueous formulations, and aqueous formulations so prepared, the process comprising heating at least one cyclic compound of the formula I in the presence of water and of an acidic catalyst and, during or after the heating, H-X-R 3 is at least partially separated off, where, in formula I, X is selected from oxygen, sulfur and N-R 6 , R 1 -R 6 are as defined, and n is an integer from 1 to 4.
Abstract:
Procedimiento para la obtención de un polvo polímero convenientemente redispersable en agua mediante secado por pulverizado de una dispersión acuosa de polímero, caracterizado porque el secado por pulverizado de la dispersión acuosa de polímero se efectúa en presencia de un agente auxiliar de pulverizado A, que se obtuvo mediante reacción de una dihidroxidifenilsulfona con 0, 5 a 5 moles de un aldehído alifático con 1 a 6 átomos de carbono, y 0, 4 a 2 moles de sulfito sódico por mol de dihidroxidifenilsulfona a una temperatura de 90 a 180ºC.
Abstract:
A process for the preparation of a readily water-redispersible polymer powder by spray drying of an aqueous polymer dispersion in the presence of a novel spray drying assistant.
Abstract:
An epichlorohydrinamine polymer has a ratio of amine units to epichlorohydrin units of from 0.8:1.2 to 1.0:1.0, dimethylaminopropylamine and benzylamine preferably being used as amine and/or ammonium units. The novel epichlorohydrinamine polymer is used, for example, for the surface treatment of semifinished leather products and textile materials.
Abstract:
Production of aqueous formulations comprises heating 2-organyl-oxy-, -thio- or -amino-dihydrofuran, dihydropyran, tetrahydrooxepin and tetrahydrooxocin compound(s) in the presence of water and an acid catalyst and (partly) removing the hydroxy, thio or amine compound during or at the end of heating. Production of aqueous formulations comprises heating 2-organyl-oxy-, -thio- or -amino-dihydrofuran, dihydropyran, tetrahydrooxepin and tetrahydrooxocin compound(s) of formula (I) in the presence of water and an acid catalyst and (partly) removing H-X-R3 during or at the end of heating. X = O, S or N-R6; R3, R6 = R, formyl or CO-R or may be combined to a ring if X is N-R6' R = 1-12 C alkyl or an optionally substituted 3-23 C cycloalkyl, 7-13 C aralkyl or 6-14 C aryl group; R1, R2, R4 = H or R or 2 adjacent groups may be combined to a ring; n = 1-4; and R5 = H or R or R4 and R5 or 2 adjacent R5 groups may be combined to a ring. Independent claims are also included for the following: (A) aqueous formulations prepared by this process; and (B) mixtures of dimers, oligomers and polymers of dicarbonyl compound(s) of formula (III).
Abstract:
Production of aqueous formulations comprises heating 2-organyl-oxy-, -thio- or -amino-dihydrofuran, dihydropyran, tetrahydrooxepin and tetrahydrooxocin compound(s) in the presence of water and an acid catalyst and (partly) removing the hydroxy, thio or amine compound during or at the end of heating. Production of aqueous formulations comprises heating 2-organyl-oxy-, -thio- or -amino-dihydrofuran, dihydropyran, tetrahydrooxepin and tetrahydrooxocin compound(s) of formula (I) in the presence of water and an acid catalyst and (partly) removing H-X-R 3> during or at the end of heating. [Image] X : O, S or N-R 6>; R 3>, R 6>R, formyl or CO-R or may be combined to a ring if X is N-R 6>' R : 1-12 C alkyl or an optionally substituted 3-23 C cycloalkyl, 7-13 C aralkyl or 6-14 C aryl group; R 1>, R 2>, R 4>H or R or 2 adjacent groups may be combined to a ring; n : 1-4; and R 5>H or R or R 4> and R 5> or 2 adjacent R 5> groups may be combined to a ring. Independent claims are also included for the following: (A) aqueous formulations prepared by this process; and (B) mixtures of dimers, oligomers and polymers of dicarbonyl compound(s) of formula (III). [Image].
Abstract:
Un proceso para la preparación de soluciones acuosas de polímeros de epiclorohidrinamina, que comprende las siguientes etapas de proceso: (a) reacción de dos aminas diferentes con al menos un derivado de epiclorohidrina como agente alquilante en agua durante un periodo que es suficiente para que el agente alquilante libre no sea detectable, resultando una mezcla de reacción (I); (b) si es apropiado, enfriar la mezcla de reacción (I) resultante de la etapa de proceso (a); (c) adición de al menos un ácido y, si es apropiado, agua a esta mezcla de reacción (I) hasta que el pH de la mezcla de reacción (I) sea de 4 a 10, resultando una mezcla de reacción (II), y (d) si es apropiado, hacer reaccionar la mezcla de reacción (II) con un agente productor de cationes, siendo las aminas dimetilaminopropilamina y bencilamina.
Abstract:
Condensation products (I) produced by reacting an aromatic compound with a sulfonating agent, a carbonyl compound and optionally a urea derivative followed by molecular size-dependent separation are used as medicaments. ACTIVITY : Virucide; Antiallergic; Dermatological; Antipruritic; Antiinflammatory. The condensation product of the invention (unspecified) had an IC50 of 12 mu g/ml against replication of herpes simplex virus type 1 in Vero cell cultures. MECHANISM OF ACTION : Human leukocyte elastase inhibitor; Plasmin inhibitor; Histamine release inhibitor.