Abstract: Propene is continuously reacted with hydrogen peroxide in a tube bundle reactor comprising a multitude of parallel reaction tubes in the presence of a titanium silicalite catalyst arranged as a fixed bed in the reaction tubes. A cooling jacket encloses the reaction tubes, which has a feed point for cooling medium near the entry of the reaction tubes, a withdrawal point for cooling medium near the end of the reaction tubes and at least one additional withdrawal point upstream of the withdrawal point near the end of the reaction tubes. Cooling medium is fed to the feed point for cooling medium, a part of the cooling medium is withdrawn at the at least one additional withdrawal point and the remainder exits at the withdrawal point near the end of the reaction tubes.

Abstract: An epoxy resin composition including A) at least one epoxy compound, and B) a hardener composition including B1) from 0.1%-100% by weight of 2-(2,2,6,6-tetramethylpiperidin-4-yl)propane-1,3-diamine, and B2) from 99.9%-0% by weight of at least one further diamine and/or polyamine, where the stoichiometric ratio of the epoxy groups of A) and the number of active hydrogen atoms of the functional groups of B) varies from 1:2 to 2:1.

Abstract: The present invention provides a cationic arabinoxylan and the hydrophobically modified product thereof. The cationic arabinoxylan is prepared based on a cereal arabinoxylan and a quaternizing agent, with water as solvent and strong alkali as catalyst. The hydrophobically modified product is prepared based on cationic arabinoxylan and alkyl halide, with pyridine as catalyst. Said cationic arabinoxylan and the hydrophobically modified product thereof can be used as a conditioning agent or thickener in cosmetics or personal care compositions, and can also be used in textile, papermaking, pharmaceutical and food industry applications.

Abstract: A binder that can be used in a paint composition, an adhesive composition, and/or a sealant composition. The binder includes a reaction product formed from an adduct (A) of an isocyanatoalkylalkoxysilane (A1) and an alcohol (A2) with an alkoxysilane-containing Q unit-free alkyl- and/or arylsilicone resin (B).

Abstract: A process can prepare an isocyanurate compound by hydrosilylation. The compound is a tris[3-(trialkoxysily)propyl] isocyanurate, a tris[3-(alkyldialkoxysilyl)propyl] isocyanurate, and/or a tris[3-(dialkylalkoxysilyl)propyl] isocyanurate. The process includes (A) preparing a mixture of at least one carboxylic acid, a platinum catalyst, and 1,3,5-triallyl-1,3,5-triazine-2,4,6(1H,3H,5H)-trione; (B) heating the mixture to a temperature in the range of 40 to 140° C.; (C) adding at least one H-silane among a hydrotrialkoxysilane, a hydroalkyldialkoxysilane, and a hydrodialkylalkoxysilane to the mixture; (D) adding at least one alcohol to the mixture prepared in step (C); and (E) isolating the isocyanurate compound.

Abstract: Process for Pd-catalyzed decomposition of formic acid

Abstract: A process can prepare a 3-glycidyloxypropylalkoxysilane of formula (I), (R?)O—(CH2)3—Si(OR)3 (I), where R groups are independently a methyl or ethyl group and R? represents an H2C(O)CHCH2— group. The process includes reacting (i) a functionalized alkene of formula (II), (R?)O—C3H5 (II), where R? represents an H2C(O)CHCH2— group, with (ii) at least one hydroalkoxysilane of formula (III), HSi(OR)3 (III), where R groups are independently a methyl or ethyl group. The reacting takes place in the presence of (iii) a Karstedt catalyst or a catalyst having hexachloroplatinic acid as a homogeneous catalyst, and (iv) 2-ethylhexanoic acid, isononanoic acid, or both. The process further includes obtaining a product of the reacting.

Abstract: Process for methoxycarbonylation with formic acid as the CO source.

Abstract: Process for methoxycarbonylation with formic acid and methanol.

Abstract: Core-shell particles containing crystalline iron oxide in the core and amorphous silicon dioxide in the shell and in which a) the shell contains from 5 to 40% by weight of silicon dioxide, b) the core contains b1) from 60 to 95% by weight of iron oxide and b2) from 0.5 to 5% by weight of at least one doping component selected from the group consisting of aluminum, calcium, copper, magnesium, silver, titanium, yttrium, zinc, tin and zirconium, c) where the % by weight indicated are based on the core-shell particles and the sum of a) and b) is at least 98% by weight of the core-shell particles, d) the core has lattice plane spacings of 0.20 nm, 0.25 nm and 0.29 nm, in each case+/?0.02 nm, determined by means of HR-TEM.

Abstract: The invention relates to a compound of formula (I) where R1 and R3 are each a heteroaryl radical having five ring atoms, R2 and R4 are each independently selected from —(C1-C12)-alkyl, —(C3-C12)-cycloalkyl, —(C3-C12)-heterocycloalkyl, —(C6-C20)-aryl; R1 and R3 may each independently be substituted by one or more substituents selected from —(C1-C12)-alkyl, —(C3-C12)-cycloalkyl, —(C3-C12)-heterocycloalkyl, —O—(C1-C12)-alkyl, —O—(C1-C12)-alkyl-(C6-C20)-aryl, —O—(C3-C12)-cycloalkyl, —S—(C1-C12)-alkyl, —S—(C3-C12)-cycloalkyl, —COO—(C1-C12)-alkyl, —COO—(C3-C12)-cycloalkyl, —CONH—(C1-C12)-alkyl, —CONH—(C3-C12)-cycloalkyl, —CO—(C1-C12)-alkyl, —CO—(C3-C12)-cycloalkyl, —N—[(C1-C12)-alkyl]2, —(C6-C20)-aryl, —(C6-C20)-aryl-(C1-C12)-alkyl, —(C6-C20)-aryl-O—(C1-C12)-alkyl, —(C3-C20)-heteroaryl, —(C3-C20)-heteroaryl-(C1-C12)-alkyl, —(C3-C20)-heteroaryl-O—(C1-C12)-alkyl, —COOH, —OH, —SO3H, —NH2, halogen; and R2 and R4, if they are —(C1-C12)-alkyl, —(C3-C12)-cycloalkyl, —(C3-C12)-heterocycloalkyl or —(C6-C20)-aryl, may e

Abstract: Compound of formula (I) where R2, R4 are each independently selected from —(C1-C12)-alkyl, —(C3-C12)-cycloalkyl, —(C3-C12)-heterocycloalkyl, —(C6-C20)-aryl; the R1, R3 radicals are each a —(C3-C20)-heteroaryl radical; R1, R3 may each independently be substituted by one or more substituents selected from —(C1-C12)-alkyl, —(C3-C12)-cycloalkyl, —(C3-C12)-heterocycloalkyl, —O—(C1-C12)-alkyl, —O—(C1-C12)-alkyl-(C6-C20)-aryl, —O—(C3-C12)-cycloalkyl, —S—(C1-C12)-alkyl, —S—(C3-C12)-cycloalkyl, —COO—(C1-C12)-alkyl, —COO—(C3-C12)-cycloalkyl, —CONH—(C1-C12)-alkyl, —CONH—(C3-C12)-cycloalkyl, —CO—(C1-C12)-alkyl, —CO—(C3-C12)-cycloalkyl, —N—[(C1-C12)-alkyl]2, —(C6-C20)-aryl, —(C6-C20)-aryl-(C1-C12)-alkyl, —(C6-C20)-aryl-O—(C1-C12)-alkyl, —(C3-C20)-heteroaryl, —(C3-C20)-heteroaryl-(C1-C12)-alkyl, —(C3-C20)-heteroaryl-O—(C1-C12)-alkyl, —COOH, —OH, —SO3H, —NH2, halogen; R2, R4, if they are —(C1-C12)-alkyl, —(C3-C12)-cycloalkyl, —(C3-C12)-heterocycloalkyl or —(C6-C20)-aryl, may each independently be substituted by one or

Abstract: The present invention relates to an isocyanate-free and preferably solvent-free process for preparing polymers containing five-membered cyclic carbonate groups. In particular, the present invention is directed to a process for preparing polymers bearing cyclic carbonate groups by reacting carboxyl-bearing polymers selected from the group including polyesters based on di- or polyols and di- or polycarboxylic acids or derivatives thereof or poly(meth)acrylates, with hydroxyl-functionalized five-membered cyclic carbonates, without addition of isocyanates.

Abstract: The present disclosure in general relates to a process for (1) reducing impurities, i.e. undesirable natural components such as waxes and undesirable synthetic materials such as agrochemicals and other environmental pollutants, or (2) fractionation of natural components present in an essential oil using at least one selective membrane.

Abstract: A process for producing SiOC-bonded polyether siloxanes by transesterification of alkoxysiloxanes with polyetherols in the presence of zinc acetylacetonate as catalyst is described.

Abstract: The invention relates to solid, powdery compositions comprising at least one solid, water soluble carrier and at least one surface-active substance, and to a method for the production and use thereof in an aqueous solution.

Abstract: The invention provides derivatives of rhamnolipids, formulations comprising these, and the use thereof.

Abstract: The present invention relates to cellulose fiber materials containing 0.01 to 0.5% by weight of ammonia compound comprising oxyalkyl radicals consisting of at least 3 carbon atoms which are biodegradable at a degree of at least 60% according the OECD 301F method and a process for producing debonded cellulose fibers.

Abstract: The invention is concerned with the production of 1-hexene and octenes from ethene. 1-Butene is optionally also to be produced. The problem addressed by the present invention is that of developing a process for producing 1-hexene from ethene by MTHxE etherification to achieve better chemical utilization of the employed carbon atoms. This problem is solved by catalytic retrocleavage of MTHxE into the C6 olefins and the alcohol, reuse of the alcohol in the etherification and reaction of the obtained C6 olefins with ethene to afford C8 olefins. In this way the alcohol is not lost from the process but rather is internally recirculated as a derivatizing agent. The less attractive C6 olefins from the cleavage product are upgraded to octene with further ethene in order to provide a further commercial product.

Abstract: Novel 2,2?-diaminobiaryls having two secondary amines and an electrochemical process for preparation thereof.