Abstract: A composite includes a first preform and a second preform spaced from and in overlying relationship to the first preform. The second preform defines at least one first opening extending therethrough along an axis transverse to the first preform. A first surface layer is disposed adjacent to the second preform and on an opposite side of the second preform from the first preform. A polymeric composition including the reaction product of an isocyanate component and an isocyanate-reactive component is disposed between the first preform and the second preform. The polymeric composition adheres the first surface layer to the second preform through the at least one first opening. The surface layer is adhered to the second preform during molding of the composite article and in the absence of additional adhesive, thereby reducing production time and cost of the composite article.

Abstract: A method polymerizes a monomer to form a polyamide having a reagent incorporated therein. In the method, a masterbatch is formed that includes the reagent. The masterbatch and the monomer are introduced into a reactor, and the monomer is polymerized in the presence of the reagent to form the polyamide having the reagent incorporated therein. The monomer may be a caprolactam monomer that may be polymerized in a VK tube reactor to form polyamide 6 having at least one free acid site. The reagent may be present in an amount of from 1 to 10 parts by weight per 100 parts by weight of the masterbatch. Additionally, the masterbatch and caprolactam may be introduced into the top of the VK tube reactor.

Abstract: The present invention relates to a process for preparing ?-ketonitriles of the general formula I in which R1 is, inter alia, C1-C12-alkyl, C2-C12-alkenyl, C2-C12-alkinyl, C3-C8-cycloalkyl, C3-C8-cycloalkyl-C1-C4-alkyl, phenyl-C1-C4-alkyl, phenoxy-C1-C4-alkyl or benzyloxy-C1-C4-alkyl; R2 is, inter alia, hydrogen, C1-C12-alkyl, C2-C12-alkenyl, C2-C12-alkinyl, C3-C8-cycloalkyl, C3-C8-cycloalkyl-C1-C4-alkyl, phenyl, phenyl-C1-C4-alkyl, phenoxy-C1-C4-alkyl or benzyloxy-C1-C4-alkyl, which comprises reacting a nitrile of the formula II in which R1 has one of the meanings given above with a carboxylic ester of the formula III in which R2 has one of the meanings given above and R3 is C1-C12-alkyl, C1-C4-alkoxy-C1-C4-alkyl, C3-C8-cycloalkyl, C3-C8-cycloalkyl-C1-C4-alkyl, phenyl-C1-C4-alkyl, phenoxy-C1-C4-alkyl or benzyloxy-C1-C4-alkyl, where the reaction is carried out in the presence of a potassium alkoxide and at least 80% of the nitrile of the formula II are added to the reaction under reactio

Abstract: Method of distilling mixtures comprising salts having a melting point of less than 200° C. at 1 bar (ionic liquids), wherein the mixtures additionally comprise an organic compound (called distillation aid below) which is not ionic has a molecular weight of less than 5000 has a boiling point which is at least 5° C. higher compared with the ionic mixtures included in the mixture.

Abstract: A rylene-based polychromophore of the general formula I in which the variables are each defined as follows: rylene is a radical of the formula which has been functionalized by at least one imide group, ester group or amide group and which may additionally be substituted by aryloxy, arylthio, hetaryloxy and/or hetarylthio; X is a rylenedicarboximide radical which absorbs at a different wavelength from the rylene radical, is bonded to the X radical in the peri-position via Y via a moiety —Y?-A-Y—, is bonded to the rylene radical and may likewise be substituted by aryloxy, arylthio, hetaryloxy and/or hetarylthio; A is a bridging member having at least one aromatic or heteroaromatic radical, the Y or Y and Y? groups being bonded to the aromatic or heteroaromatic radical; Y is a moiety Y? is a moiety where the moieties (i) and (ii) may be part of the ester groups of the rylene radical and the moieties (iii) are part of the imide groups of the rylene radical and the moieties (iv) ar

Abstract: The present invention relates to a method for producing a metal oxide by heating a porous metal-organic framework material, the framework material comprising at least one at least bidentate organic compound bound to at least one metal ion by coordination, and the metal ion being selected from the metals comprising groups 2 to 4 and 13 of the Periodic Table of the Elements, above the complete decomposition temperature of the framework material, and also to metal oxides obtainable by this method, and to the use thereof.

Abstract: An absorption medium for removing acid gases from a fluid stream comprises an aqueous solution (A) of an alkali metal salt of an N,N-di-C1-C4-alkylaminocarboxylic acid and (B) N-hydroxyethylpiperazine. The absorption medium has a low vapor pressure and an increased resistance to oxygen. Preferred fluid streams are combustion exhaust gases or biogas.

Abstract: Thermoplastic molding compositions, comprising A) from 10 to 98.9% by weight of at least one thermoplastic polyester, B) from 0.01 to 50% by weight of B1) at least one highly branched or hyperbranched polycarbonate or B2) at least one highly branched or hyperbranched polyester of AxBy type, where x is at least 1.1 and y is at least 2.1 or a mixture of these C) from 0.1 to 10% by weight of at least one epoxidized naturally occurring oil or fatty acid ester, or a mixture of these, and D) from 0 to 60% by weight of other additives, where the total of the percentages by weight of components A) to D) is 100%.

Abstract: Use of rylene derivatives I with the following definition of the variables: X together both —COOM; Y a radical -L-NR1R2??(y1) -L-Z—R3??(y2) the other radical hydrogen; together both hydrogen; R is optionally substituted (het)aryloxy, (het)arylthio; P is —NR1R2; B is alkylene; optionally substituted phenylene; combinations thereof; A is —COOM; —SO3M; —PO3M2; D is optionally substituted phenylene, naphthylene, pyridylene; M is hydrogen; alkali metal cation; [NR5]4+; L is a chemical bond; optionally indirectly bonded, optionally substituted (het)arylene radical; R1, R2 are optionally substituted (cyclo)alkyl, (het)aryl; together optionally substituted ring comprising the nitrogen atom; Z is —O—; —S—; R3 is optionally substituted alkyl, (het)aryl; R? is hydrogen; optionally substituted (cyclo)alkyl, (het)aryl; R5 is hydrogen; optionally substituted alkyl (het)aryl; m is 0, 1, 2; n, p m=0: 0, 2, 4 where: n+p=2, 4, if appropriate 0; m=1: 0, 2, 4 where: n+p=0, 2, 4; m=2: 0, 4, 6 where:

Abstract: The use of high-functionality highly branched polyetheramine polyols to coat substrates such as metal surfaces or components made of plastic permits improved adhesion of further coatings.

Abstract: A multi color, photoactive, color changing plastic, coating or ink, composition comprising both a photochromic material and a photosensitive chromogenic system is provided which will undergo a sequence of color changes upon exposure to ultraviolet radiation. Also provided is an ultraviolet indicator or dosimeter comprising the color changing composition.

Abstract: Polymer substrates are marked by a method in which certain graphite nanoplatelets are incorporated into the polymer composition, such as a coating or plastic article, prior to marking the composition by exposing selected portions of the substrate to a heat source, typically a laser. Additional pigments may also be present allowing for the production of a variety of different types of markings.

Abstract: Coating compositions comprising at least one hydroxyl-containing compound (A), at least one isocyanato-containing compound (B) and at least one urea-group-containing compound (H) different from (B), compound (H) comprising at least one structural unit selected from the group consisting of a structural unit (I) a structural unit (II) a structural unit (III) —NR??—C(O)—N(X—SiR?x(OR?)3-x)n(X?—SiR?y(OR?)3-y)m, and combinations of two or more of the foregoing, compound (H) being obtained by reacting an isocyanato-containing compound (HG) with amino-containing compounds, wherein in compound (H) more than 90 mol % of the isocyanate groups originally present in (HG) have undergone reaction to form the structural units (I), (II), (III), or combinations thereof, where R?, R??=hydrogen, alkyl, cycloalkyl, aryl or aralkyl; R, R?=alkyl, cycloalkyl, aryl or aralkyl; X, X?=linear and/or branched alkyl or cycloalkyl radical; x, y, n, m=0 to 2; and m+n=2.

Abstract: The present invention relates to a process for producing rigid polyurethane foams by reaction of a) at least one organic polyisocyanate with b) at least one polyol component in the presence of a blowing agent mixture comprising water and halogenated alkenes, wherein the amount of water is at least 1.40 mol/kg of polyol component b) and the amount of halogenated alkene is at most 2.00 mol/kg of polyol component b), and also to the use of such a blowing agent mixture for producing corresponding rigid polyurethane foams and for increasing the adherence and reducing the thermal conductivity of corresponding rigid polyurethane foams. The present invention further relates to a rigid polyurethane foam obtainable by the process of the present invention.

Abstract: The present invention relates to a process for the production of fine chemicals in a microorganism, a plant cell, a plant, a plant tissue or parts thereof. The invention furthermore relates to nucleic acid molecules, polypeptides, nucleic acid constructs, vectors, antisense molecules, antibodies, host cells, plant tissue, propagation material, harvested material, plants, microorganisms as well as agricultural compositions and to their use.

Abstract: Zeolite catalysts and systems and methods for preparing and using zeolite catalysts having the CHA crystal structure are disclosed. The catalysts can be used to remove nitrogen oxides from a gaseous medium across a broad temperature range and exhibit hydrothermal stable at high reaction temperatures. The zeolite catalysts include a zeolite carrier having a silica to alumina ratio from about 15:1 to about 256:1 and a copper to alumina ratio from about 0.25: 1 to about 1:1.

Abstract: Multivinyl siloxane oligomer-based compositions and methods for their preparation and use are described herein. The multivinyl siloxane oligomer-based compositions can be prepared as aqueous polymer dispersion. The aqueous polymer dispersions can include water and a polymer derived from at least one multivinyl siloxane oligomer having an Si—O—Si backbone and at least one alkoxy group and one or more additional monomers. Further described herein are products including the aqueous polymer dispersions and methods for their preparation and use.

Abstract: A process for removing heavy hydrocarbons from a natural gas stream comprises passing the natural gas stream thought a TSA adsorbent unit to adsorb heavy hydrocarbons, regenerating the TSA adsorbent by heating to form a contaminant-containing gas phase, cooling the contaminated gas phase to separate water and heavy hydrocarbon liquids to form a third gas phase and directing the third gas phase to a PSA unit to adsorb heavy hydrocarbons from the third gas phase. The product from the PSA unit can be sent to pipeline or recycled to the TSA unit for further hydrocarbon removal and recovery.

Abstract: The present invention relates to a process for converting a gas mixture comprising CO and H2 to olefins, comprising (1) providing a gas mixture (G0) comprising CO and H2; (2) providing a catalyst (C1) for conversion of CO and H2 to dimethyl ether; (3) contacting the gas mixture (G0) with the catalyst (C1) to obtain a gas mixture (G1) comprising dimethyl ether and CO2; (4) providing a catalyst (C2) for conversion of dimethyl ether to olefins; (5) contacting the gas mixture (G1) comprising dimethyl ether with the catalyst (C2) to obtain an olefin-comprising gas mixture (G2).

Abstract: Catalyzed soot filters comprising a wall flow monolith having a washcoat comprising an alkali base metal composite disposed on the monolith. Methods of manufacturing and using catalyzed soot filters and diesel engine exhaust emission treatment systems are also disclosed.