An alignment composition is presented that includes an alignment polymer and a reactive mesogen. The alignment polymer includes a polyimide backbone and a vertical alignment side chain combined with the polyimide backbone. The reactive mesogen may be represented by the formula
M5-M1-M2-M3-M4
in which M1 represents a divalent organic group including an aromatic ring group, M2 represents ##STR00001##
M3 represents a single bond, O, O(CH.sub.2).sub.aO, or (CH.sub.2).sub.aO, wherein a represents an integer of 1 to 20, M4 represents an alkenyl group or an alkynyl group having a carbon number of 2 to 20 an alkenylcarbonyl group having a carbon number of 3 to 20, an alkenylcarbonyloxy group having a carbon number of 3 to 20, a an oxotetrahydrofuryl group having (CCH.sub.2) substituted for at least one CH.sub.2, or an epoxy group. M5 represents -M2-M3-M4 or -M3-M4.

This invention provides a polymerizable compound represented by formula (I), a polymerizable composition containing the polymerizable compound and a polymerization initiator, a polymer produced by polymerizing the polymerizable compound or the polymerizable composition, and an optically anisotropic product comprising the polymer as a constituent material. In formula (1), Y.sup.1 to Y.sup.9 represent O, S, OC(O), C(O)O or the like, G.sup.1 and G.sup.2 represent a divalent linear aliphatic group having 1 to 20 carbon atoms or the like, Z.sup.1 to Z.sup.3 represent an alkenyl group having 2 to 10 carbon atoms or the like, A.sup.x represents a group represented by a formula (II), wherein X represents an oxygen atom, a sulfur atom or the like, D represents an alkylene group having 1 to 20 carbon atoms or the like, A.sup.1 represents a trivalent aromatic group or the like, A.sup.2 and A.sup.3 represent a divalent alicyclic hydrocarbon group having 3 to 30 carbon atoms or the like, A.sup.4 and A.sup.5 represent a divalent aromatic group having 4 to 30 carbon atoms or the like, Q.sup.1 represents an alkyl group having 1 to 6 carbon atoms or the like, and m and n are 0 or 1. ##STR00001##

A microneedle assembly that is capable of transdermal delivery of a drug compound, such as a vaccine, (e.g., vaccine) across a dermal barrier of a subject (e.g., human), and/or detecting the presence of an analyte in the subject is provided. The microneedle assembly comprises a plurality of microneedles arranged on a support that each contain a tip and base, one or both of which are formed from a polymer composition that includes a liquid crystalline polymer. By selectively controlling the specific components of the polymer composition, as well as their relative concentration, the resulting microneedles may exhibit a high degree of physical alignment, which can help ensure better performance during use of the microneedle assembly.

A polymerizable liquid crystal compound represented by Chemical Formula 1:

##STR00001##

wherein in Chemical Formula 1, groups and variables are the same as defined in the detailed description.

This polymerizable compound is represented by a formula (I), this polymerizable composition contains said polymerizable compound and a polymerization initiator, this polymer is obtained by polymerizing the polymerizable compound or polymerizable composition, and this optically anisotropic product is comprised from the polymer. In the formula, each of Y.sup.1 to Y.sup.8 represents O, S, OC(O), C(O)O, etc., Y.sup.a represents O, S, OC(O), C(O)O, etc., each of G.sup.1 and G.sup.2 represents a divalent linear aliphatic group having 1 to 20 carbon atoms, etc., each of Z.sup.1 and Z.sup.2 represents an alkenyl group having 2 to 10 carbon atoms, etc., A.sup.x represents an organic group having an aromatic ring and 2 to 30 carbon atoms, A.sup.1 represents a trivalent aromatic group, etc., each of A.sup.2 and A.sup.3 represents a divalent alicyclic hydrocarbon group having 3 to 30 carbon atoms, each of A.sup.4 and A.sup.5 represents a divalent aromatic group having 4 to 30 carbon atoms, etc., Q.sup.1 represents an alkyl group having 1 to 6 carbon atoms, etc., and each of m and n represents 0 or 1.

##STR00001##

A polymer composition comprising 100 parts by weight of a polymer matrix and from about 20 parts to about 150 parts by weight of an impact modifier is provided. The impact modifier includes a (meth)acrylic component that is derived from an epoxy-functionalized monomeric unit, non-epoxy functionalized (meth)acrylic monomeric component, or a combination thereof. Further, the impact modifier exhibits a Shore D hardness of about 75 or less.

Provided is (i) a composition containing at least one kind of polymerizable liquid crystal compound and at least one kind of photopolymerization initiator, the at least one kind of photopolymerization initiator having (i) a maximum absorption at wavelength (A) and (ii) a maximum absorption at wavelength (B), the at least one kind of polymerizable liquid crystal compound and the at least one kind of photopolymerization initiator satisfying the following: 20 nm<(B).sub.max(LC); or 20 nm<.sub.max(LC)(A), wherein .sub.max(LC) represents a wavelength at which the at least one kind of polymerizable liquid crystal compound has a maximum absorption, the composition being a composition from which an optically anisotropic layer that hardly has a transfer defect during a transfer is capable of being produced, and (ii) a display device and the like each including the optically anisotropic layer produced from the composition.

A liquid crystal polyester resin composition, a molded article, and an electronic component material including the same are disclosed. The liquid crystal polyester resin composition has good mechanical properties, good weld line impact strength, high dimensional stability, and resistance to dust generation.

A light control layer contains a liquid crystal composition and a resin composition. The liquid crystal composition is composed of a liquid crystal compound having a nematic-isotropic phase transition temperature of 110 C. or greater and 140 C. or less, the resin composition contains an acrylic polymer, a bridging group of the acrylic polymer is a saturated alkyl group having 1 or more and 12 or fewer carbon atoms, and the resin composition contains, in the acrylic polymer, a moiety in which the saturated alkyl group is a linear alkyl group, whereby a light control device operates normally over a wider temperature range.

The invention refers in a first aspect to self-supporting film comprising green luminescent crystals (1), red luminescent crystals (2), and a polymer (3). The green luminescent crystals (1) are perovskite crystals. The red luminescent crystals (2) are zincblende or wurzite, preferably zincblende, crystals. A second aspect of the invention refers to a solid polymer composition (100). A third aspect of the invention refers to a light emitting device comprising either the solid polymer composition (100) or the self-supporting film.