Abstract: A radiation curable resin composition comprising: (A) metal oxide particles; (B) at least one photoinitiator, preferably a radical photoinitiator, or any mixture thereof; (C) at least one acrylate or methacrylate component with a ClogP higher than 2, preferably higher than 4, more preferably higher than 5, or any mixture thereof; (D) at least one monofunctional acrylate or methacrylate diluent component, preferably with a viscosity below 40 mPa·s at 20° C., or any mixture thereof; (E) at least one acrylate or methacrylate component with functionality equal or higher than 3, preferably 3 or 4, or any mixture thereof; can be advantageously used, for example, in multilayer barrier stacks for the production of organic opto-electric or opto-electronic device, such as Organic Light Emitting Diode (OLED).

Abstract: A process for the preparation of a fiber reinforced composite article comprising the steps of a) providing a fibre preform in a mold, b) injecting a multiple component thermosetting resin composition into the mold, wherein the resin composition comprises (b 1) a liquid epoxy resin, (b2) a curing agent comprising 1,3-bis(aminomethyl)cyclohexane, and (b3) an accelerator comprising at least one compound selected from the group sulfonic acid and imidazolium salt of a sulfonic acid, c) allowing the resin to impregnate the fiber preform, d) curing the resin impregnated preform, e) demolding the cured composite part, facilitates manufacturing of composite articles with reduced cycle times, said composite articles exhibit excellent mechanical properties, especially elongation and fracture toughness, and can be used for the construction of mass transportation vehicles, in particular in automotive and aerospace industry.

Abstract: An apparatus is described for coating a flexible substrate with at least a first organic layer and a first inorganic layer. The apparatus comprises a first and a second chamber and an atmosphere decoupling slot between the first and the second chamber. A printing facility is arranged in the first chamber, for printing the flexible substrate with a mixture comprising at least one precursor for a polymer, oligomer or a polymer network and a polymerization initiator. A curing facility is arranged in the first chamber, for curing the deposited mixture, therewith forming the at least first organic layer. A vapor deposition facility is arranged in the second chamber, for depositing the at least first inorganic layer at the substrate provided with the at least first organic layer. The apparatus comprises a facility for guiding the flexible substrate along the printing facility, along the curing facility and via the atmosphere decoupling slot along the vapor deposition facility.

Abstract: A radiation curable resin composition comprising: (A) metal oxide particles; (B) at least one photoinitiator, preferably a radical photoinitiator, or any mixture thereof; (C) at least one acrylate or methacrylate component with a ClogP higher than 2, preferably higher than 4, more preferably higher than 5, or any mixture thereof; (D) at least one monofunctional acrylate or methacrylate diluent component, preferably with a viscosity below 40 mPa·s at 20° C., or any mixture thereof; (E) at least one acrylate or methacrylate component with functionality equal or higher than 3, preferably 3 or 4, or any mixture thereof; can be advantageously used, for example, in multilayer barrier stacks for the production of organic opto-electric or opto-electronic device, such as Organic Light Emitting Diode (OLED).

Abstract: Photocurable composition curable by ultraviolet (UV) radiation comprising: A) at least one organosiloxane component A of the following formula (I): whereby Pa and Pb are each independently selected from a cationically polymerizable group, x+y is an integer ?1, Sp and Sp? are each independently selected from a cycloaliphatic hydrocarbon group and an aliphatic linear or branched hydrocarbon group, R1 and R2 are each independently linear or branched aliphatic or cycloaliphatic, alkoxy, aromatic or hetero aromatic groups; B) at least one second organosiloxane component B of the following formula (II): whereby n is an integer ranging from 7 to 300, x+y is an integer ?1, Pa and Pb are each independently selected from a cationically polymerizable group, Sp and Sp? are each independently selected from a cycloaliphatic hydrocarbon group and aliphatic linear or branched hydrocarbon group, R1, R2, R3, R4 are each independently linear or branched aliphatic or cycloaliphatic, alkoxy, aromatic or hetero aromatic group; C)

Abstract: An apparatus is described for coating a flexible substrate with at least a first organic layer and a first inorganic layer. The apparatus comprises a first and a second chamber and an atmosphere decoupling slot between the first and the second chamber. A printing facility is arranged in the first chamber, for printing the flexible substrate with a mixture comprising at least one precursor for a polymer, oligomer or a polymer network and a polymerization initiator. A curing facility is arranged in the first chamber, for curing the deposited mixture, therewith forming the at least first organic layer. A vapor deposition facility is arranged in the second chamber, for depositing the at least first inorganic layer at the substrate provided with the at least first organic layer. The apparatus comprises a facility for guiding the flexible substrate along the printing facility, along the curing facility and via the atmosphere decoupling slot along the vapor deposition facility.

Abstract: The present invention is directed towards polymerizable dichromophoric dichroic azo dyes comprising azo-chromophores to which polymerizable groups are attached leading to dyes having sufficient solubility in combination with high coloring power and high order parameter.

Abstract: The present invention concerns functionalized photoreactive compounds of formula (I), that are particularly useful in materials for the alignment of liquid crystals. Due to the adjunction of an electron withdrawing group to specific molecular systems bearing an unsaturation directly attached to two unsaturated ring systems, exceptionally high photosensitivities, excellent alignment properties as well as good mechanical robustness could be achieved in materials comprising said functionalized photoreactive compounds of the invention.

Abstract: A diamine compound is proposed as well as polymers, copolymers, polyamic acids, polyamic acid esters, or polyimides based on such compound. The compound is represented by one of the general formulae (Ia) and (Ib). It could be shown that such structures, in particular for a specific choice of the residue B, provide, if e.g. used as orientation layers, a photostable, vertically aligning material with an improved VHR.

Abstract: The present invention is directed towards polymerizable dichromophoric dichroic azo dyes comprising azo-chromophores to which polymerizable groups are attached leading to dyes having sufficient solubility in combination with high coloring power and high order parameter.

Abstract: The present invention relates to mesogenic, cross-linkable mixtures comprising (i) a cross-linkable liquid crystalline host compound comprising at least one cross-linkable liquid crystalline compound, and (ii) at least one chiral or achiral rod shaped additive component, wherein said additive component has a rigid core and comprises at least two fused or linked, optionally substituted, non-aromatic, aromatic, carbocyclic or heterocyclic groups, and also comprises at least one optionally substituted alkyl residue, and at least one polymerizable group and wherein the additive component has a transition temperature to the isotropic state of 40° C. or lower.

Abstract: The present invention is directed towards polymerizable dichroic azo dyes comprising azo-chromophores having at least one standard mesogenic ring system attached to said chromophores and at least one polymerizable group leading to dyes having sufficient solubilty and a very high order parameter.

Abstract: Chiral or achiral compounds of formula (I) wherein —(C1—X1)n1—C2—(X2—C3)n2— is a rod-like core formed by a substantially linear arrangement of the residues represented by the symbols and A includes a polymerizable group, as well as LCP networks thereof.

Abstract: Compounds for use in the preparation of polymerizable liquid crystalline mixtures, liquid crystalline polymers and optical devices prepared from such mixtures and polymers. The compounds include novel compounds comprising an organosiloxane portion and a portion having a structure that is compatible with a mesogenic molecular architecture.

Abstract: Chiral prolinol derivatives of formula (1). The compounds may be used as doping agents for liquid crystals for a wide range of applications, including solid state cholesteric filters for projection displays, circular polarizers and optical filters.