Abstract: Method for thermal insulation of an evacuable container comprising an inner container, an outer container and a cavity disposed between the inner container and the outer container, wherein said method comprises a) using a vacuum pump to reduce a pressure in the cavity and after achieving a first value of the pressure interrupting the connection to the vacuum pump, b) subsequently making a connection from a reservoir container of the thermally insulating particulate material to a filling opening provided in the region of the cavity, c) setting the evacuable container into motion, wherein the thermally insulating particulate material flows into the cavity according to a) and the pressure in the cavity increases due to the air introduced with the thermally insulating particulate material, d) terminating the filling at a second value of the pressure by interrupting the connection from the cavity to the reservoir container, e) repeating step a), wherein the output of the vacuum pump with which the cavity is deaer

Abstract: Process for producing a thermally insulating mixture comprising hydrophobic silica, in which a) a pulverulent carrier material selected from the group consisting of precipitated silicas, SiO2 aerogels, pearlites and mixtures thereof is coated with a liquid silicon compound, where the liquid silicon compound has at least one alkyl group and a boiling point of less than 200° C., and b) the pulverulent carrier material that has thus been coated with the liquid silicon compound is mixed with a composition comprising a pulverulent hydrophilic fumed silica and the mixture is subjected to thermal treatment at more than 40° C. and c) any unreacted silicon compound is subsequently removed from the thermally treated mixture, thus giving the thermally insulating mixture comprising hydrophobic silica.

Abstract: Method for thermal insulation of an evacuable container comprising an inner container, an outer container and a cavity disposed between the inner container and the outer container, wherein said method comprises a) using a vacuum pump to reduce a pressure in the cavity and after achieving a first value of the pressure interrupting the connection to the vacuum pump, b) subsequently making a connection from a reservoir container of the thermally insulating particulate material to a filling opening provided in the region of the cavity, c) setting the evacuable container into motion, wherein the thermally insulating particulate material flows into the cavity according to a) and the pressure in the cavity increases due to the air introduced with the thermally insulating particulate material, d) terminating the filling at a second value of the pressure by interrupting the connection from the cavity to the reservoir container, e) repeating step a), wherein the output of the vacuum pump with which the cavity is deaer

Abstract: Process for producing a thermally insulating mixture comprising hydrophobic silica, in which a) a pulverulent carrier material selected from the group consisting of precipitated silicas, SiO2 aerogels, pearlites and mixtures thereof is coated with a liquid silicon compound, where the liquid silicon compound has at least one alkyl group and a boiling point of less than 200° C., and b) the pulverulent carrier material that has thus been coated with the liquid silicon compound is mixed with a composition comprising a pulverulent hydrophilic fumed silica and the mixture is subjected to thermal treatment at more than 40° C. and c) any unreacted silicon compound is subsequently removed from the thermally treated mixture, thus giving the thermally insulating mixture comprising hydrophobic silica.

Abstract: Mixed oxide which has the composition LixMn0.5?a Ni0.5?b Coa+b O2, where 0.8?x?1.2, 0.05?a?0.3, 0.05?b?0.3, ?0.1?a?b?0.02 and a+b<0.5, and has a BET surface area of from 3 to 20 m2/g, a multimodal particle size distribution and a d50 of less than or equal to 5 ?m. Mixed oxide which has the composition Lix Mn0.5?a Ni0.5?b Coa+b O2, where 0.8?x?1.2, 0.05?a?0.3, 0.05?b?0.3, ?0.1?a?b?0.02 and a+b<0.5, and has a BET surface area of from 0.05 to 1 m2/g, a d50 of less than or equal to 10 ?m and a ratio of the intensities of the signals at 2?=18.6±1° to 2?=44.1±1° in the X-ray diffraction pattern of greater than or equal to 2.4.

Abstract: The invention relates to a process for increasing the oxidation stability of biodiesel, in which at least one aging stabilizer of the structure I where: R=hydrogen, alkyl, alkenyl, alkynyl, alkoxy, alkylaryl, arylalkyl, cycloalkyl, hydroxyl or aryl group A=R5 (AI) or —NR1R2 (AII) and B=R6 (BI), where R1, R2, R3, R4, R5 and R6=hydrogen, alkyl, alkenyl, alkynyl, alkoxy, alkylaryl, arylalkyl, cyclo-alkyl, hydroxyl or aryl group, are the same or different, and the phenyl or naphthyl structural unit in structure I, BII and BIII has one, two or three substituents of the R3, R4 and/or R5 type, is added to the biodiesel to be stabilized in an amount of from 5 to 20 000 ppm (w/w), to the use of these aging stabilizers to increase the oxidation stability of biodiesel, and to the correspondingly oxidation-stabilized biodiesel.

Abstract: A composition comprising a polyamide, 0.01% to 5% by weight of at least one primary antioxidant based on the total mass of the polyamide, and at least one secondary antioxidant.

Abstract: The invention relates to an antioxidant for polyamides containing a sterically hindered phenol of formula (I) as a single primary antioxidant, wherein n is a mixture of whole numbers from 1-5. The invention also relates to compositions containing a polyamide and a compound of formula (I) as a single primary antioxidant.

Abstract: The invention relates to a method of increasing the oxidation stability of biodiesel, which comprises adding a primary antioxidant having a melting point of less than or equal to 40° C. to the biodiesel to be stabilized in an amount of from 10 to 20 000 ppm (w/w), where the primary antioxidant comprises at least one compound having the structure where: R1, R2=hydrogen, a linear alkyl group having from 1 to 20 carbon atoms or where * is a carbon atom of the aromatic ring system, R3, R5=hydrogen, a linear alkyl group having from 1 to 20 carbon atoms, R4=hydrogen, a linear alkyl group having from 1 to 40 carbon atoms, where both the substituents of the type R1 and R2 and those of the type R3 and R5 are in each case identical or different.

Abstract: A method of increasing the oxidation stability of biodiesel, by addition of at least one primary antioxidant of formula I to the biodiesel to be stabilized, in an amount of from 10 to 20 000 ppm (w/w); a biodiesel stabilized by the at least one primary antioxidant of the formula I; and a method of preventing corrosion, blockages in injection pumps, blockages in fuel lines, or a combination thereof, in engines, heaters, or machines utilizing biodiesel as a fuel source, the method being adding the compound of formula I to the biodiesel of the engines, heaters, or machines.

Abstract: The invention relates to an antioxidant for polyamides containing a sterically hindered phenol of formula (I) as a single primary antioxidant, wherein n is a mixture of whole numbers from 1-5. The invention also relates to compositions containing a polyamide and a compound of formula (I) as a single primary antioxidant.