BASF

A preservative-free and sulfate-free aqueous surfactant comprising• one or more alpha-sulfo fatty acid salts (A) of the general formula (I), R¹CH(SO₃M¹)COOM² (I)in which the radical R¹ is a linear or branched alkyl or alkenyl radical with 6 to 16 carbon atoms and the radicals M¹ and M² - independently of one another - are selected from the group H, Li, Na, K, Ca, Mg, ammonium and alkanolamine, and encompass a disalt and/or a monosalt and/or a protonated acid, and• one or more alkyl glycosides (B) of the general formula (II), R²O-[G]_p (I)in which R² is an alkyl and/or alkenyl radical with 8 to 18 carbon atoms, G is a sugar radical with 5 or 6 carbon atoms and p is numbers between 1 and 10,• one or more amidoalkylbetaines (C) of the general formula (III), R³-CO-NH-(CH₂)_y-N⁺(CH₃)₂-CH₂-COO^- (III)in which the radical R³ is a linear or branched alkyl or alkenyl radical with 7 to 19 carbon atoms and the index y is an integer in the range 2 to 4 and the use of compound (A) as bacteriostatic surfactant for manufacturing preservative-free cosmetic products.

A curable composition comprising a polythiol prepolymer (B) having at least two groups of formula <img class="EMIRef" id="088278b5-b93b-4d19-9ea0-5257520a5931-ia01" /> is provided, wherein n is 0 to 20, obtainable by using an oxathiolanone group-containing compound (A2), and a curing agent having an SH-reactive group. The oxathiolanone group-containing compound (A2) is used as a monomer for stabilizing a polythioether polymer (D) towards chemicals, preferably acids. The curable composition may be used upon hardening as a coating, as an adhesive, as a sealant or as a shaped article.

Die vorliegende Erfindung betrifft ein Verfahren zur Abtrennung von Oligo- und Polyethylenglykolen aus ethoxylierten Alkanolen.

The invention relates to a method and system adapted for monitoring and approving a quality of a product provided with a product-package, wherein the product comprises a nutrition-supplementary composition and is provided as a particulate material, and the product-package has a packing comprising foil based packing means with a set of foils and a closure in form of a weldseam at least at one location of the foil based packing means adapted such that the product is contained as a content in the packing. According to the invention the method for monitoring and approving a quality of a product provided with a product-package comprises i.a. the steps of: - at a determined later period of probe time (t2) after an initial period of service time (t1), approving the gas- and/or humidity-tight containment-property of a twin-packing for a twin-package and providing a test result, - wherein the test result is correlated (t3) with the quality parameter of the product in that - in the case the test result approves the gas- and/or humidity-tight containment-property the threshold of a quality parameter of the product are confirmed; - in the case the test result disapproves the gas- and/or humidity-tight containment-property, the threshold of a quality parameter of the product are disconfirmed.

The invention relates to a process for producing butyraldehyde, comprising: (a) feeding propene (1) and a hydrogen and carbon monoxide containing synthesis gas (3) into a reactor (5); (b) reacting propene, hydrogen and carbon monoxide to obtain an isobutyraldehyde and n-butyraldehyde comprising crude product stream (7); (c) withdrawing the crude product stream (7) from the reactor (5); (d) cooling the crude product stream (7); wherein the crude product stream (7) is cooled in a heat exchanger (201) of a heat pump (200) for producing steam and/or in a heat exchanger (101) of a district heating grid (100).

The present invention relates to a process for the production of gamma-valerolactone, which comprises a hydrogenation of an ethyl levulinate with hydrogen in the presence of a heterogeneous ruthenium catalyst, which comprises elemental ruthenium supported on activated carbon carrier.

The present invention relates to a particle, especially micro- and nanoplastics, composite and inorganics, sampling and detection method and device for polymer comprising coating compositions, preferably paints, with exposure to UV light and humidity during their life cycle characterized by the following steps: a. the application and drying of a defined weight of a polymer containing coating formulation on a substrate to form a coating film b. Ageing of the coating film under (a) using UV light and humidity. c. Sampling dissolved organic compounds (DOC), inorganics, micro- and nanoplastics by c1) absolute mass loss of the coating film under (b) by gravimetrical methods. c2) dissolved organic compounds with immersion in water c3) inorganic, micro- and nanoplastics with mechanical treatment (e.g. water pressure or ultrasound optionally in the presence of surfactant), and d. determining the concentration of the released species under c. by quantifying at least one of the following species d1) dissolved organic carbon, d2) inorganics, including its fraction in composites, d3) micro-, nanoplastics, including its fraction in composites, d4) total number of particles with analytical detection methods.

A fuel composition for use in a compression ignition engine comprises a hydrocarbon compound and oxygenate compound. The hydrocarbon compound comprises at least one member of each of a paraffinic C_8-25 hydrocarbon, a C_13-25 cycloparaffinic hydrocarbon, and an aromatic hydrocarbon. The oxygenate compound comprises at least one of an ether, monoetherified and monoesterified diols, an ester, and an ether alcohol ester, each having a molecular weight of 220 to 500 g/mol. The fuel composition has a density of 0.79 to 1.00 g/cm³ at a temperature of 15°C. The fuel composition is useful as a diesel fuel having improved low temperature properties.

The present invention relates to a polyol composition (PC) for the production of a polyurethane, in particular a thermoplastic polyurethane, comprising at least one compound (P1) having at least two hydrogen atoms which are reactive towards isocyanates and (P1) has the general formula (A1)-(B)-(A2). The invention furthermore relates to a process for producing a polyurethane, preferably a thermoplastic polyurethane, comprising mixing an isocyanate composition (IC) comprising at least one polyisocyanate (11); and a polyol composition (PC), comprising at least one compound (P1); and reacting the isocyanate composition (IC) and the polyol composition (PC) to form a polyurethane. The present invention also relates to the polyurethane obtained in the process as well as the use thereof for producing an article, in particular for producing an article selected from the group consisting of flooring, a shoe or a part of a shoe.

The present invention concerns a multilayer composite battery electrode comprising active electrode materials obtained by direct recycling of battery materials from batteries comprising coated metal foil electrodes which are common in, e.g., lithium ion batteries or other alkali metal batteries. The battery materials are either obtained as production scrap from electrode and/or cell production, or obtained from end-of-life batteries (EoL batteries) by sorting and healing processes as they are described in literature.