Abstract: Thermoplastic mixtures comprising: A) 30% to 100% by weight of a thermoplastic blend consisting of: A-1) 65% to 75% by weight of a polyester, A-2) 5% to 25% by weight of an HD or LD polyethylene, A-3) 3% to 10% by weight of an ionomer composed of at least one copolymer of: 3-1) 30% to 99% by weight of ethylene 3-2) 0% to 60% by weight of one or more compounds selected from the group consisting of 1-octene, 1-butene and propylene and 3-3) 0.

Abstract: Polybutylene terephthalate can be used as a gas diffusion barrier for closed-cell rigid polyurethane foams. A thermal insulation element containing a closed-cell, rigid polyurethane foam, which is at least partially covered by a layer system containing at least one layer formed by a polybutylene terephthalate composition, is useful. Articles and devices may contain a corresponding thermal insulation structure, such as refrigerators, insulation panels, pipe insulations, water heaters, and thermally insulated transport boxes.

Abstract: In a first aspect, the invention relates to a polymer composition comprising (i) a polyester; and (ii) an oxidizable organic polymer consisting of a branched or unbranched alkyl chain, which comprises at least one oxidizable C?C double bond. A second aspect of the invention relates to the use of the polymer composition according to the first aspect for the preparation of a polymer article. In a third aspect, the invention relates to a polymer article comprising the polymer composition according to the first aspect. In a fourth aspect, the invention relates to a method for preparing a polymer composition having oxygen consumption activity.

Abstract: Thermoplastic mixtures comprising: A) 30% to 100% by weight of a thermoplastic blend consisting of: A-1) 55% to 75% by weight of a polyester, A-2) 5% to 25% by weight of an HD or LD polyethylene, A-3) 10% to 25% by weight of an ionomer composed of at least one copolymer of: 3-1) 30% to 99% by weight of ethylene 3-2) 0% to 60% by weight of one or more compounds selected from the group consisting of 1-octene, 1-butene and propylene and 3-3) 0.

Abstract: The present invention relates to a molding comprising, (i) a polyester in an amount in the range of from 25 to 99.99 weight-%, based on the total weight of the molding, (ii) a metal-organic framework in an amount of from 0.01 to 25 weight-%, based on the total weight of the molding, wherein the metal-organic framework comprises one or more metal ions M and one or more organic ligands. Further, the present invention relates to a process for preparation of such a molding and use thereof.

Abstract: The invention relates to a container for ingredients for making beverages in the form of a rotation-symmetric truncated cone which is open at the larger bottom end of the truncated cone and closed at the smaller top end of the truncated cone by a top section of the truncated cone which preferably is of a flat, rounded, inclined or dented form or a combination of these forms, wherein the larger bottom end of the truncated cone can be closed by a base plate or membrane and can have an outward flange section to which the base plate or membrane can be attached, and wherein the thickness of the container wall is non-uniform, the container wall forming one or more circumferential stiffening rings which cover 10 to 50% of the container height, and wherein the wall thickness of the stiffening rings is at least 50% higher than the wall thickness in the remaining container wall outside the stiffening rings, the container having a maximum height of 5 cm and a maximum diameter without flange of 6 cm.

Abstract: Polybutylene terephthalate can be used as a gas diffusion barrier for closed-cell rigid polyurethane foams. A thermal insulation element containing a closed-cell, rigid polyurethane foam, which is at least partially covered by a layer system containing at least one layer formed by a polybutylene terephthalate composition, is useful. Articles and devices may contain a corresponding thermal insulation structure, such as refrigerators, insulation panels, pipe insulations, water heaters, and thermally insulated transport boxes.

Abstract: The invention relates to a continuous process for producing an aliphatic polyester constructed from aliphatic dicarboxylic acids and aliphatic diols comprising the steps of a) esterification, b) polycondensation and optionally c) chain extension, characterized in that during step b) in which the polycondenser functions as a degassing apparatus (B) and/or b?) after the polycondensation in an additional degassing apparatus (B?) the crude polyester is degassed at a pressure of 0.01 to 5 mbar in the presence of 1% to 7% by weight, based on the total weight of the crude polyester of water, introduced into the gas space of the degassing apparatus B and/or B? as an entraining agent.

Abstract: The present invention relates to an injection molded article comprising: i) 27% to 87% by weight based on the total weight of the components i to iv of a polyester constructed from aliphatic dicarboxylic acids and aliphatic diols; ii) 3% to 15% by weight based on the total weight of the components i to iv of an aliphatic-aromatic polyester comprising: ii-a) 30 to 70 mol % based on the components ii-a to ii-b of a C6-C18-dicarboxylic acid; ii-b) 30 to 70 mol % based on the components ii-a to ii-b of terephthalic acid; ii-c) 99 to 100 mol % based on the components ii-a to ii-b of 1,3-propanediol or 1,4-butanediol; ii-d) 0% to 1% by weight based on the components ii-a to ii-c of a chain extender and/or branching agent; iii) 0% to 35% by weight based on the total weight of the components i to iv of polylactic acid; iv) 10% to 35% by weight based on the total weight of the components i to iv of at least one surface-modified silicate selected from the group consisting of: kaolin, muscovite, montmorillonite, tal

Abstract: The invention relates to the use of a thermoplastic polymer having a melting point below 220° C. as additive in polybutylene terephthalate molding compositions for reducing the necking upon elongation of sheets or films of the polybutylene terephthalate molding composition, preferably wherein the polybutylene terephthalate molding composition comprises a) 50 to 95 wt % of polybutylene terephthalate as component A, b) 5 to 50 wt % of the thermoplastic polymer having a melting point below 220° C., as component B, c) 0 to 45 wt % of filler as component C, d) 0 to 20 wt % of further additives as component D, wherein the total of components A to D is 100 wt %.

Abstract: The present invention relates to a continuous process for purifying a chain-extended aliphatic polyester constructed from aliphatic dicarboxylic acids and aliphatic diols in a degassing apparatus, wherein the crude polyester is degassed for 3 to 30 minutes at a pressure of 0.01 to 5 mbar in the presence of 1% to 7% by weight, based on the total weight of the crude polyester, of an entraining agent.

Abstract: The present invention relates to an item produced by thermoforming, comprising: i) from 45 to 59% by weight, based on the total weight of components i to iv, of a biodegradable polyester comprising: i-a) from 90 to 100 mol %, based on components i-a to i-b, of succinic acid; i-b) from 0 to 10 mol %, based on components i-a to i-b, of one or more C6-C20 dicarboxylic acids; i-c) from 98 to 102 mol %, based on components i-a to i-b, of 1,3-propanediol or 1,4-butanediol; i-d) from 0.05 to 1% by weight, based on components i-a to i-c, of a chain extender or branching agent; ii) from 5 to 14% by weight, based on the total weight of components i to iv, of an aliphatic-aromatic polyester comprising: ii-a) from 30 to 70 mol %, based on components ii-a to ii-b, of a C6-C18-dicarboxylic acid; ii-b) from 30 to 70 mol %, based on components ii-a to ii-b, of terephthalic acid; ii-c) from 98 to 100 mol %, based on components ii-a to ii-b, of 1,3-propanediol or 1,4-butanediol; ii-d) from 0.

Abstract: A macrocycle based on ?-diketimines, a process for preparing the inventive macrocycle, an uncharged macrocyclic dimetallic complex based on the inventive macrocycle, and a process for preparing the uncharged macrocyclic dimetallic complex, the use of the uncharged macrocyclic dimetallic complex as a polymerization catalyst in the polymerization of carbon dioxide with one or more epoxides, a process for preparing polycarbonates by reacting carbon dioxide with one or more epoxides in the presence of the inventive uncharged macrocyclic dimetallic complex, and a polycarbonate prepared by the process according to the invention.

Abstract: A macrocycle based on ?-diketimines, a process for preparing the inventive macrocycle, an uncharged macrocyclic dimetallic complex based on the inventive macrocycle, and a process for preparing the uncharged macrocyclic dimetallic complex, the use of the uncharged macrocyclic dimetallic complex as a polymerization catalyst in the polymerization of carbon dioxide with one or more epoxides, a process for preparing polycarbonates by reacting carbon dioxide with one or more epoxides in the presence of the inventive uncharged macrocyclic dimetallic complex, and a polycarbonate prepared by the process according to the invention.

Abstract: The present invention relates to a process for preparing carbonates by reacting propylene oxide, ethylene oxide, styrene oxide and/or cyclohexene oxide with carbon dioxide in the presence of one or more catalysts of the formula I where R1 is hydrogen, C1-C6-alkyl, C1-C6-haloalkyl, NR?4—(CH2)2-6—where R? is C1-C6-alkyl; R2 is hydrogen, C1-C4-alkyl, C1-C4-haloalkyl, halogen, amino, nitro, C1-C6-alkoxy or cyano; R3, R4 are each hydrogen or together are a butadienylene moiety which bears the R5 substituent; R5 is C1-C4-alkyl, C1-C4-haloalkyl, halogen, amino, nitro, C1-C6-alkoxy or cyano; M is Zn(II), Mg(II), Cr(II), Cr(III), Co(II), Co(III), Fe(II) or Fe(III); and X1, X2 are each OCOCH3, OCOCF3, OSO2C7H7 or halogen. More particularly, the invention relates to a process for preparing cyclic carbonates, and to a process for preparing aliphatic polycarbonates using these catalysts I, and to particularly preferred catalysts of the formulae Ia and Ib.