Sulzer Chemtech Ag

Sulzer Management Ag

Eidgenossische Technische Hochschule Zurich

Basf Se Corporation

Hilti Aktiengesellschaft

Eth Zurich

A.l.p. Technology Ag

Coelux S.r.l.

Zeochem Ag

Massimo Morbidelli

Giuseppe Storti

Armin Pfeil

Paolo Di Trapani

Liborio Ivano Costa

Lars Aumann

Philip Nising

Francesca Tancini

Peter Joachim Fleckenstein

Jan-Georg Rosenboom

David Pfister

Alexej Michailovski

Imme Domke

Reinhold Rieger

Piyada Charoensirisomboon

Igor Shishkov

Marco Mazzotti

Xia Meng

Thomas B&uuml;rgel

Miroslav Soos

Alexandros Lamprou

Bastian Brand

Nicola Forrer

Mandy Erdmann

David Gétaz

Rushd Khalaf

Hua Wu

Xinya Zhang

Adalbert Prior

Joachim Prior

Frank Lang

Anny Rosell

Susanna Bernardi

Lu Jin

Delong Xie

A process to produce a polyester polymer by polymerization of a cyclic polyester oligomer composition comprising a cyclic polyester oligomer having furanic units in the presence of a plasticizer, as well as the polyester polymer obtained thereby.

Process to prepare polyester polymer and polyester polymer obtainable thereby

A process to prepare a (iv) cyclic polyester oligomer composition includes a cyclic polyester oligomer having furanic units and two to five repeat units. The process includes (a) reacting a monomer composition including: (i) a bifunctional furan-derivative and (ii) a diol in an linear oligomerization step to produce a (iii) linear oligomer composition including a linear oligomer species, (b) reacting the (iii) linear oligomer composition in a distillation-assisted cyclization (DA-C) step to form a (iv) cyclic polyester oligomer composition and a (v) diol byproduct. The (v) diol byproduct is removed by evaporation in the distillation-assisted cyclization (DA-C) step.

Process to prepare a cyclic oligomer and a cyclic oligomer obtainable thereby and a process to polymerize it

A process to prepare a polyester polymer composition comprising a polyester polymer having furanic units is disclosed. The process comprises a step of ring-opening polymerization of a cyclic polyester oligomer, which comprises residue of furandicarboxylic acid and a diol, in the presence of a catalyst in order to yield a polyester polymer having furanic units. The polyester polymer composition obtainable by the process, wherein the polyester polymer composition comprises a polyester polymer having furanic units and a cyclic polyester oligomer in a concentration of less than 5 wt % of the composition. The use of the polyester polymer composition in extrusion, injection molding, or blow molding are also disclosed.

Process to prepare a polyester polymer composition comprising a polyester polymer having furanic units and a polyester polymer composition obtainable thereby and the use thereof

A method for producing macro porous micro-clusters is proposed comprising at least the following individual steps in given order: a) synthesis of dispersed cross-linked polymeric latex primary particles starting from at least one monomer or oligomer using emulsion polymerization; b) swelling of the primary particles with a liquid comprising at least an additional charge of monomer and/or oligomer and a cross-linker, optionally further comprising functionalization agents; c) destabilization by increase of ionic strength (by adding a salt and/or acid and/or base) in a combination with application of shear, both being above the gel formation boundary of the phase diagram, until agglomerates composed of primary particles of the desired size are formed; d) polymerization of the agglomerates to form the macro porous micro-clusters. Furthermore the invention to relates to correspondingly produced micro-clusters and uses of such micro-clusters in particular for chromatographic purposes.

Method for the preparation of macroporous particles and macroporous microclusters

A process to prepare a cyclic polyester oligomer composition having a cyclic polyester oligomer having furanic units, includes the step of reacting a monomer component, for example, 2,5-furan dicarboxylic acid and, for example, ethylene glycol, in a ring closing oligomerization at a reaction temperature and reaction time, for example, at 100&#xb0; C. to 350&#xb0; C. for 30 to 600 minutes to obtain a cyclic polyester oligomer having furanic units. The process yields a cyclic polyester oligomer composition which can be used in further ring-opening polymerization reactions to produce a polyester polymer. The cyclic polyester oligomer composition has a cyclic polyester oligomer having furanic units and less than 5% linear oligomeric polyester species in the composition.

Process to prepare a cyclic oligomer and a cyclic oligomer obtainable thereby

The present invention relates to a process for separating at least one first material from a mixture comprising this at least one first material and at least one second material, which comprises contacting of the mixture comprising at least one first material and at least one second material with at least one magnetic particle, or contacting of the mixture comprising at least one first material and at least one second material with at least one magnetic particle and at least one surface-modifying substance at the same time, contacting of the mixture from step (A) with at least one surface-modifying substance, if this has not been done in step (A), so that the at least one first material, the at least one surface-modifying substance and the at least one magnetic particle become attached to one another, and separation of the addition product by application of a magnetic field.

Magnetic separation of particles including one-step-conditioning of a pulp

A process for continuous or quasi-continuous purification of a multi-component mixture (F) by means of individual chromatographic columns through which the mixture is fed by means of at least one solvent(s). The multi-component mixture (F) at least comprises light impurities (A), an intermediate product (B) to be purified and heavy impurities (C), and the columns are grouped into at least four sections (&#x3b1;,&#x3b2;,&#x3b3;,&#x3b4;). After or within a switch time (t*) the last column from the first section (&#x3b1;) is moved to the first position of the second section (&#x3b2;), the last column of the second section (&#x3b2;) is moved to the first position of the third section (&#x3b3;), the last column of the third section (&#x3b3;) is moved to the first position of the fourth section (&#x3b4;) and the last column of the fourth section (&#x3b4;) is moved to become the first column of the first section (&#x3b1;).

Method and device for chromatographic purification

A process for continuous purification of a multi-component mixture by means of individual chromatographic columns though which the mixture is fed by means of at least one solvent. The multi-component mixture comprises at least light impurities, an intermediate product, and heavy impurities. The columns are grouped into at least four sections (&#x3b1;, &#x3b2;, &#x3b3;, &#x3b4;) and the fourth section contains three sub-sections (&#x3b4;, &#x3b4;, &#x3b4;). The process operates, alternatingly, in a batch-mode position and in an interconnected-mode position. After or within a switch time, the columns are moved in their function in a counter direction to the general direction of flow of the solvent. The combination of batch chromatography with elements of simulated moving bed techniques, or rather, countercurrent-principles, allows for the separation of a true multi-component mixture, even if one of the products is only present in a small amount, comparatively.

Disclosed is a method for producing at least one chemical reaction product by chemically reacting one or several reactants that is/are optionally dissolved in one or several solvents and is/are supplied as a feed stream by bringing the same in contact with a heterogeneous catalyst in a continuously operated fixed-bed reactor which is filled with a particle bed, a continuous annular chromatograph (CAC) that is filled with the particle bed being used as a fixed-bed reaction in which the at least one reaction product is formed and purified while the at least one purified reaction product as well as optionally provided secondary products and/or non-reacted reactants are withdrawn at a different, predetermined azimuthal position of the annular chromatograph, respectively. The inventive method is characterized in that only one type of particle material is used in a single particle bed as both a formation catalyst and a chromatographic medium for purifying the at least one reaction product in the particle bed.

Method for the production of a chemical reaction product with the aid of a fixed-bed reactor

A mortar composition, curable by frontal polymerization after heat initiation, is described, wherein are contained a) at least one polymerizable monomer and/or at least one curable resin, b) at least one polymerization initiator, which can be activated and/or released thermally at a temperature above 30&deg; C., for the polymerizable monomers and/or curing accelerator for the curable resin and c) optionally at least one filler, the nature and amount of polymerizable monomer or curable resin and polymerization initiator or curing accelerator being selected so that a polymerization front velocity of at least 10 cm/min results after the polymerization is initiated, as well as a method for fastening tie bars, reinforcing steel or the like in solid substrates.

Mortar composition, curable by frontal polymerization, and a method for fastening tie bars

Growing community of inventors

Zurich, Switzerland

Massimo Morbidelli