The present invention relates to a novel method for the preparation of photoaligning polymer materials comprising aryl acrylic acid ester groups, to photoalignment compositions obtained by this process, to the use of the composition as orienting layer for liquid crystals and to non-structured and structured optical elements, electro-optical elements, multi-layer systems or in nanoelectronics comprising the compositions.

The present invention relates to a vinyl chloride-based copolymer which has good processability and thus is capable of providing molded articles having good appearance characteristics, for example, transparency, a method for preparing the same, a thermoplastic resin composition containing the same, and a thermoplastic resin molded article produced from the thermoplastic resin composition. The vinyl chloride-based copolymer includes N-vinyllactam-based polymer compound derived units and unsaturated fatty acid ester derived units at an appropriate ratio, and may have improved structure stability and good processability due to the N-vinyllactam-based polymer compound derived units and improved plasticity and processability due to the internal plasticizer action of the unsaturated fatty acid ester derived units. Therefore, the vinyl chloride-based copolymer according to the present invention may be easily applied in industries that need thereof.

The present invention relates to a vinyl chloride-based copolymer which has good processability and thus is capable of providing molded articles having good appearance characteristics, for example, transparency, a method for preparing the same, a thermoplastic resin composition containing the same, and a thermoplastic resin molded article produced from the thermoplastic resin composition. The vinyl chloride-based copolymer includes N-vinyllactam-based polymer compound derived units and unsaturated fatty acid ester derived units at an appropriate ratio, and may have improved structure stability and good processability due to the N-vinyllactam-based polymer compound derived units and improved plasticity and processability due to the internal plasticizer action of the unsaturated fatty acid ester derived units. Therefore, the vinyl chloride-based copolymer according to the present invention may be easily applied in industries that need thereof.

The invention relates to a polymerisable LC medium with flat optical dispersion, a polymer film with flat optical dispersion obtainable from such a medium, and the use of the polymerisable LC medium and polymer film in optical, electro optical, electronic, semiconducting or luminescent components or devices.

The invention relates to a polymerisable LC medium with flat optical dispersion, a polymer film with flat optical dispersion obtainable from such a medium, and the use of the polymerisable LC medium and polymer film in optical, electro optical, electronic, semiconducting or luminescent components or devices.

A polymer particle production method includes: providing (12) one or more vinyl monomers; performing (14) free radical ring-opening polymerization (rROP) of cyclic ketene acetal (CKA) with the one or more vinyl monomers in a first organic solvent with a radical source to obtain a rROP reaction mixture; and emulsifying (16) the rROP reaction mixture in a second organic solvent to produce a plurality of polymer particles.

A polymer particle production method includes: providing (12) one or more vinyl monomers; performing (14) free radical ring-opening polymerization (rROP) of cyclic ketene acetal (CKA) with the one or more vinyl monomers in a first organic solvent with a radical source to obtain a rROP reaction mixture; and emulsifying (16) the rROP reaction mixture in a second organic solvent to produce a plurality of polymer particles.

A photocurable composition can comprise a polymerizable material and a photoinitiator, wherein the polymerizable material may comprise at least one first polymerizable monomer having a structure of Formula (1): (R.sub.1).sub.xAr(R.sub.2).sub.y (1), with Ar being one or more substituted or unsubstituted aromatic rings; R.sub.1 being a structure covalently bonded to Ar including at least one acrylate group; x being 1-4; and R.sub.2 being CH?CH.sub.2 or CCH.sub.3=CH.sub.2 covalently bonded to Ar; y being 1-4.

A photocurable composition can comprise a polymerizable material and a photoinitiator, wherein the polymerizable material may comprise at least one first polymerizable monomer having a structure of Formula (1): (R.sub.1).sub.xAr(R.sub.2).sub.y (1), with Ar being one or more substituted or unsubstituted aromatic rings; R.sub.1 being a structure covalently bonded to Ar including at least one acrylate group; x being 1-4; and R.sub.2 being CH?CH.sub.2 or CCH.sub.3=CH.sub.2 covalently bonded to Ar; y being 1-4.

Curable ink compositions include at least one aromatic (meth)acrylate, at least one multifunctional (meth)acrylate with heteroaromatic groups, fused aromatic groups, heteroalkylene groups, or a group containing both heteroalkylene and aromatic groups, and a photoinitiator. The curable ink composition is Inkjet printable, having a viscosity of 30 centipoise or less at a temperature of from room temperature to 35 C., and is free from solvents. The ink composition, when printed and cured has a refractive index of 1.55 or greater, and is optically clear. The cured ink composition, when cured to a thickness of from 1-16 micrometers, has a surface roughness of less than or equal to 5 nanometers.