Abstract: A sealing resin composition is provided with is useful in the encapsulation of an electronic component and comprises a melt-processable polyester having a weight-average molecular weight of 1000 to 3900 and is capable of forming an optically anisotropic molten phase, and at most 80 percent by weight based upon the total weight of the composition of an inorganic powder which has been surface-treated with an epoxysilane or mercaptosilane coupling agent.

Abstract: An improved method for encapsulating an electronic component with a highly stable protective layer is provided. Such encapsulation is carried out by injection molding about the surface of the electronic component of an encapsulant composition comprising a molten melt-processable polyester which is capable of forming an anisotropic melt phase having uniformly blended therein about 0.1 to 30 percent by weight based upon the total weight of the composition of silicone oil and/or a silicone rubber. Quality encapsulation is made possible under conditions wherein damage to the electronic component is minimized, and the resulting product is well protected without damage under a wide variety of end use conditions including variations in temperature. The process is carried out in the substantial absence of deleterious mold shrinkage and the product exhibits an extremely low linear coefficient of thermal expansion which well protects the electronic component encased therein.

Abstract: A racemic, anti head-to-head coumarin dimer can be separated into its optically active constituents by using an optically active amine. Each optically active isomer can be further reacted with a diamine to afford an optically active polyamide.

Abstract: A liquid crystal copolyester having a blocked molecular chain terminal comprising a copolyester which exhibits anisotropy in a molten state and has a functional group located at the terminal of its molecular chain and is blocked with a low-molecular compound having at least one aromatic ring and a molecular weight of 350 or less.

Abstract: A liquid crystal polyester composition comprising 99.5 to 30 percent by weight of a polyester being melt-processable and being capable of forming the anisotropic phase in a melt state and 0.5 to 70 percent by weight of a plate-like filler and is improved in resistance to deformation.

Abstract: A liquid crystal polyester composition having an improved resistance to deformation comprising 99.5 to 30 percent by weight of a polyester which is melt-processable and capable of forming an anisotropic phase in the melt state and 0.5 to 7 percent by weight of filler particles.

Abstract: A polyester composition which comprises a polyester being processable in the melt state and being capable of forming the anisotropic phase in the melt state and an inorganic filler having been surface treated with an epoxysilane compound.

Abstract: A resin composition of the invention, exhibiting the anisotropism when melted, comprises (1) a resin having rigid structure and exhibiting the anisotropism when melted and (2) a resin having a rigid structure portion and a soft structure portion, both resins having been uniformly mixed with each other.

Abstract: A resin composition is suitable for molding to a gear and comprises 30 to 98 percent by weight of a resin being capable of the anisotropic phase in the molten state and the melt processing and 2 to 70 percent by weight of fibers such as metal fibers, carbon fibers, glass fibers, inorganic fibers, synthetic fibers and mineral fibers.

Abstract: An electroconductive resin composite is produced by polymerizing at least one monomer a polymer of which is electroconductive in a matrix of a resin which exhibits the anisotropy in the melt phase to form a composite of the obtained polymer and the resin. The resin composite is obtained in the form of film and a moulded article.

Abstract: An electrically conductive resin composition comprises (1) a polymer of the thermotropic liquid crystals being capable of the anisotropic property in the molten state and (2) an electrically conductive carbon black. It is improved in the impact strength and can contain a large amount of carbon black.

Abstract: A polyester composition comprises (1) a polyester being incapable of further substantial propagation of the chains by heating, being capable of forming the anisotropic phase in the molten state, being capable of the melt-processing and (2) an epoxy compound and is improved in heat resistance.

Abstract: A laminated film comprises a metallic film and a polymer layer which has been laminated on the metallic film, the polymer being anisotropic in the melt phase.

Abstract: A magnetic disk comprises a substrate of a resin composition comprising a polymer being capable of the anisotropic phase in the molten state and a magnetic layer formed on at least one surface of said substrate. The substrate is a laminate of a plurality, preferably two, of monoaxially oriented sheets, eventually being multiaxially oriented.

Abstract: An optical disc comprises a substrate formed from a polymer being capable of the anisotropic melt phase and being melt-processable, a recording layer having pits and grooves, formed on the substrate, and a metal coating layer, formed on the recording layer.

Abstract: A laminated sheet comprises a first layer of a melt-phase anisotropy exhibiting thermoplastic polymer, having a negative linear expansion coefficient in the direction of the polymer flow and a second layer having a positive linear expansion coefficient in the direction of the polymer flow, both layers having been laminated one on another in the alternative way, further each layer having a thickness such that the negative linear expansion coefficient of said first layer and the positive linear expansion coefficient of the second layer having been offset against each other.

Abstract: A magnetic composite comprises a magnetic powder and a resin binder of a melt-processable polymer to form the anisotropic melt phase.