(1) An epoxy resin, which is configured to form, in a cured product of the epoxy resin, a phase-separated structure that is formed from at least two phases, wherein at least one phase of the at least two phases includes a liquid crystal structure and (2) An epoxy resin, which is configured to form a phase-separated structure in a cured product, the cured product being obtained by curing the epoxy resin by increasing a temperature of the epoxy resin from an ambient temperature to a curing temperature at a rate of not greater than 20? C./minute.

Some variations provide an oligomer composition comprising: polarizable first thermotropic liquid-crystal oligomer molecules (preferably urethanes or ureas) containing first triggerable reactive end groups, wherein the first triggerable reactive end groups are selected from the group consisting of hydroxyl, isocyanate, blocked isocyanate, acrylate, epoxide, amine, vinyl, ester, thiol, conjugated diene, substituted alkene, furan, maleimide, anthracene, and combinations thereof, and wherein the polarizable first thermotropic liquid-crystal oligomer molecules are characterized by a weight-average molecular weight from about 200 g/mol to about 10,000 g/mol; optionally, a plurality of polarizable second thermotropic liquid-crystal oligomer molecules containing second triggerable reactive end groups, wherein the second triggerable reactive end groups are capable of reacting with the first triggerable reactive end groups; and optionally, a reactive coupling agent capable of reacting with the first triggerable reactive end groups. Methods are described for converting the oligomer composition into an anisotropic thermally conductive polymer. Many commercial uses are disclosed.

The present disclosure relates to a polymer resin composition including a polyamide resin in which an average particle size of individual crystals measured by a small-angle X-ray scattering apparatus is reduced through an alternating segment structure, and at least one selected from the group consisting of a metal salt compound and an end-capping agent compound, and a polymer film and a resin laminate using the same.

The present specification relates to a resin including a poly (lactic acid-b-3-hydroxypropionic acid) block co-polymer, a resin composition including the same, and a resin molded article.

A method of making an article, the method comprising converting a first amorphous polymer to an at least partially crystalline polymeric powder composition and powder bed fusing the at least partially crystalline polymer powder composition to form a three-dimensional article comprising a second amorphous polymer.

Liquid crystal polymerization films, prepared by applying a polymerizable liquid crystal composition containing a polymerizable liquid crystal compound represented by formula (2) on an alignment film prepared by calcinating a composition containing a polymer represented by a repeating unit of formula (1), and subsequently polymerizing the polymerizable liquid crystal composition.

##STR00001##

In formula (1), R.sup.1 is independently a tetravalent group, R.sup.2 is independently a divalent functional group and R.sup.3 is independently a hydrogen atom or a monovalent functional group.

PG.sup.1-Sp.sup.1-R.sup.4-Sp.sup.2-PG.sup.2(2)

In formula (2), R.sup.4 represents a divalent group formed by combining five or more and nine or less of alicycles and/or aromatic rings, SP.sup.1 and SP.sup.2 represent a spacer group, and PG.sup.1 and PG.sup.2 represents an alkyl group, an alkoxyl group, a cyano group, fluorine or a polymerizable functional group, in which either group is the polymerizable functional group.

A liquid crystalline polyester powder comprising a liquid crystalline polyester having a structural unit derived from an aromatic diol and a structural unit derived from an aromatic dicarboxylic acid, wherein a molar ratio of the structural unit derived from an aromatic diol/the structural unit derived from an aromatic dicarboxylic acid in the liquid crystalline polyester is less than 1.

This invention relates to compositions and methods for increasing the crystallization rate and/or processing speed of polyhydroxyalkanoate (PHA) polymers. PHA polymers are notorious for slow crystallization rates, reducing the practicality for using PHA for consumer products. Compounds that have similar crystal structures to PHA and have a melting point higher than that of the PHA, such as pentaerythritol, as well as compounds that undergo a crystal structure change at or below the melting point of the polymer, such as sulfur or selenium, act as good crystal nucleators for PHA.

A composition for a thermoplastic composite material including: a) from 65% to 95% by weight of at least one reactive semicrystalline polyamide prepolymer with an average molar mass Mn of less than 5000 g/mol and having a volume-mean diameter D50 of the reactive semicrystalline polyamide prepolymer powder particles ranging from 10 to 300 m, b) from 5% to 35% by weight of at least one flame retardant chosen from an at least partially meltable flame retardant in powder form and having a volume-mean diameter D50 of from 10 to 300 m, and a non-meltable flame retardant in premilled powder form with a volume-mean diameter D50 of from 1 to 50 m, and c) from 0 to 2% by weight of at least one additive, and said reactive polyamide prepolymer comprising or consisting of at least one Z/BACT/XT copolyamide.

A laminate includes a liquid crystal polymer film and at least one metallic layer attached to a surface of the liquid crystal polymer film. The liquid crystal polymer film has a melting point greater than or equal to 345? C. The liquid crystal polymer film includes a liquid crystal polymer that is polymerized from reactants. The reactants include first monomers, second monomers, third monomers, fourth monomers, or combinations thereof. These first monomers are aromatic dicarboxylic acids, aliphatic dicarboxylic acids, or combinations thereof, these second monomers are aromatic hydroxycarboxylic acids, these third monomers are aromatic diols, aliphatic diols, or combinations thereof, and these fourth monomers are aromatic diamines, aromatic hydroxylamines, aromatic aminocarboxylic acids, or combinations thereof.