Abstract: A reactive resin includes a vinyl ester resin as a base resin and an oligomeric itaconic acid ester as a reactive diluent.

Abstract: A reactive resin includes a vinyl ester resin as a base resin and an oligomeric itaconic acid ester as a reactive diluent.

Abstract: A reactive resin includes a vinyl ester resin based on renewable raw materials, in particular a dianhydrohexitol-based vinyl ester resin as the base resin. A reactive resin component containing this reactive resin is useful for chemical fastening.

Abstract: Radically polymerizable dental material which contains at least one radically polymerizable oligomer or polymer with strongly acidic groups, which has a number-average molecular weight of 1,000 to 200,000 g/mol.

Abstract: The present disclosure relates to a composition and a method to prepare a polymer nanoparticle using miniemulsion polymerization (MEP) comprising a monomer, a reactive co-stabilizer and a reactive surfactant. The reactive co-stabilizer as disclosed is a methacrylate containing perfluorinated or semifluorinated side chains like 1H,1H,2H,2H-perfluorodecyl methacrylate (H2F8MA). Further, the reactive stabilizer as used in the preparation is cetyl trimethyl ammonium chloride (CTAB). The polymer nanoparticle as formed has an enhanced stability and low VOC as compared to a pure polymer prepared by MEP.

Abstract: The present disclosure relates to a composition, comprising a monomer; a reactive co-stabilizer; a carbon black; a surfactant; and a filler, wherein the composition is used to prepare a polymer/carbon black composite particle by MEP technology along with a method for same. The reactive co-stabilizer as disclosed is methacrylate derivative containing a long alkyl chain R, with R consisting of 6-22 C atoms and being branched or linear, saturated and/or unsaturated such as stearyl methacrylate (SteaMA). The polymer/carbon black composite particle as prepared has an enhanced stability and low VOC as compared to a pure polymer prepared by MEP. Further, the prepared polymer can be used as basic resins in materials for toner applications.

Abstract: There is provided a process for preparing a polymer/carbon black composite material. The process comprises a mini emulsion polymerization (MEP) process involving a reactive co-stabilizer. Optionally, the co-stabilizer is a long alkyl chain methacrylate or a mixture of long alkyl chain methacrylates.

Abstract: The present disclosure relates to a composition and a method to prepare a polymer nanoparticle using miniemulsion polymerization (MEP) comprising a monomer, a reactive co-stabilizer and a reactive surfactant. The reactive co-stabilizer as disclosed is a methacrylate containing perfluorinated or semifluorinated side chains like 1H,1H,2H,2H-perfluorodecyl methacrylate (H2F8MA). Further, the reactive stabilizer as used in the preparation is cetyl trimethyl ammonium chloride (CTAB). The polymer nanoparticle as formed has an enhanced stability and low VOC as compared to a pure polymer prepared by MEP.

Abstract: Radically polymerizable dental material which contains at least one radically polymerizable oligomer or polymer with strongly acidic groups, which has a number-average molecular weight of 1,000 to 200,000 g/mol.

Abstract: Reverse osmosis or nanofiltration membranes having a substrate on which a porous supporting layer is arranged, on which supporting layer a separation-active layer is arranged, on which separation-active layer a cover layer is arranged, wherein the separation-active layer comprises polyamide with acid chloride groups on the surface of the separation-active layer, and wherein the cover layer comprises a polymer containing functional groups, and the functional groups of the cover layer are coupled in a chemically reactive manner with the acid chloride groups of the polyamide of the separation-active layer. Embodiments are also directed to a method in which at least one cover layer is applied to the separation-active layer of polyamide immediately thereafter.

Abstract: Described is a resin mixture comprising a vinyl ester resin and a co-polymerizable compound, which bears at least two methacrylate groups, some of which is replaced by an itaconic acid ester. It is possible to control the properties of the composition, such as the curing, through the selection of the itaconic acid ester. In addition and beyond this feature, it is possible to formulate resin compositions that exhibit a certain amount of bio-based carbon.

Abstract: The invention relates to a method for producing copolymers made from isobutene and at least one vinylaromatic component. Said method consists of polymerising isobutene or a hydrocarbon mixture containing isobutene with at least one vinylaromatic compound in the presence of a solvent-stable transistion metal complex comprising slightly co-ordinating anions as a polymerisation catalyst. The invention also relates to copolymers made of isobutene and at least one vinylaromatic compound, which can be obtained by means of said inventive method, in addition to specific functionalisation products therefrom.

Abstract: The invention relates to a method and device for production of a three-dimensional article from a material, by means of layered application. According to the invention, a dropwise application is carried out, whereby drops of reaction components are ejected by a nozzle arrangement (3) and applied to a base reaction component (2), arranged on a substrate (1). The material for the three-dimensional article is formed in layers, with reaction of the base reaction component (2) with reaction components on contact, whereby the material is formed on a reaction of the base reaction component with one of the reaction components to give a material with one material property and on another reaction of the base reaction component with another of the reaction components to give a material with another material property. On production of the three-dimensional article, an article section is produced in which a gradual transition between the one material property and the other material property is generated.

Abstract: Preparation of highly reactive isobutene homo- or copolymers having Mn=from 500 to 45 000 by polymerizing isobutene in the liquid phase in the presence of a dissolved, dispersed or supported boron-containing catalyst complex, by using, as the catalyst complex, a protic acid compound I [H+]m+1[R1R2R3B—(-Am+—BR5R6—)n—R4](m+1)?.Lx ??(I) R1 to R6 each independently aliphatic, heterocyclic or aromatic, fluorinated hydrocarbon radicals having in each case from 1 to 18 carbon atoms, or silyl groups comprising C1 to C18 hydrocarbon radicals, A nitrogen-containing bridging member which forms covalent bonds to the boron atoms via its nitrogen atoms, L neutral solvent molecules, n=0 or 1, m=0 or 1 and x is ?0.

Abstract: The invention relates to a method and device for production of a three-dimensional article from a material, by means of layered application. According to the invention, a dropwise application is carried out, whereby drops of reaction components are ejected by a nozzle arrangement (3) and applied to a base reaction component (2), arranged on a substrate (1). The material for the three-dimensional article is formed in layers, with reaction of the base reaction component (2) with reaction components on contact, whereby the material is formed on a reaction of the base reaction component with one of the reaction components to give a material with one material property and on another reaction of the base reaction component with another of the reaction components to give a material with another material property. On production of the three-dimensional article, an article section is produced in which a gradual transition between the one material property and the other material property is generated.

Abstract: The invention relates to a solvent-stable metal catalyst having slightly coordinating counter anions of formula I [M(L)a(Z)b]m+m(A?)(I), wherein M represents a transition metal of groups 3-12 of the periodic system, a lanthanide or a metal of groups 2 or 13 of the periodic system; L represents a solvent molecule; Z represents a mono or polycharged ligand; A? represents a slightly or non coordinated anion; a represents a whole number which is greater than or equal to 1; b represents a whole number which is greater than or equal to 1, whereby the total from a and b is between 4 and 8, and m represents a whole number from 1 6. The invention also relates to a method for polymerising olefinically unsaturated compounds in the presence of said catalyst and copolymers which are made of monomers comprising isobutene and at least one vinylaromatic compound which is obtained according to said inventive method.

Abstract: The organosilicon compounds have at least one Si--C-bonded organic radical which contains at least one triazene group. The organosilicon compounds can be employed as heat- and light-unstable free radical initiators for the preparation of homo-, graft co- and block copolymers from olefinically unsaturated compounds and for crosslinking organosilicon compounds and organic compounds which can be polymerized by free radical polymerization.

Abstract: A new type of thermal imaging element containing a thermally degradable polymer and a radiation to heat converting substance is disclosed. The invention further comprises several methods for the formation of a heat mode image after image-wise exposure of the thermal imaging element to intense laser radiation.

Abstract: In microcapsules with a polymeric capsule wall, the polymer of the capsule wall comprises thermolabile predetermined breaking points in the form of hexamethylenetetramine or acetaldehyde ammonia derivatives in order to facilitate release of the capsule contents (various active substances, such as example, dyes, medicaments, developers, curing agents, flameproofing agents) in a specific manner by exposure to heat.

Abstract: Aryldiazosulphonates having polymerizable ethylenically unsaturated groups are excellent starting materials for water-soluble homopolymers and copolymers, which can be converted to water-soluble polymers by irradiation. Thus, the polymers can be utilized for the preparation of aqueous coating compositions.