A transfer sheet includes a cured liquid crystal composition layer, a block layer including a (meth)acrylic polymer, and a thermoplastic welded layer in this order, the thermoplastic welded layer and the block layer are in direct contact with each other, and the thermoplastic welded layer includes a thermoplastic resin and an ultraviolet curable resin.

Various embodiments relate to plastic-metal junctions and methods of making the same via laser-assisted joining. The present invention provides a method of forming a junction between a metal form and a solid plastic. The method can include laser treating a surface of a metal form to generate a feature (e.g., a plurality of at least one of pores and grooves) in the surface of the metal, wherein the laser has an angle of incidence with the surface of the metal of other than 0 degrees. The method can include contacting the metal surface including the feature with a flowable resin composition. The method can include curing the flowable resin composition to form the solid plastic, to provide the junction between the metal form and the solid plastic.

A PFA molded article of a copolymer (PFA) of tetrafluoroethylene (TFE) and perfluoro(alkylvinyl ether) (PAVE), the content of the PAVE therein being from 1 to 10% by mol, characterized in that the PFA molded article has a flex life value of not less than 2,000,000 times, a zero share viscosity of from 10,000 to 20,000 Pa.Math.s, and a heating weight loss of not more than 0.05% by weight, and a process for the production thereof. The PFA molded article has a high flex life value, a low heating weight loss and a low zero share viscosity yet maintaining excellent mechanical properties such as tensile strength, etc., and can be produced in good yields.

A laser-welded body includes at least three of resin members, which contain a thermoplastic resin including: a first resin member which is a laser-irradiated subject, has an absorbance a.sub.1 of 0.01 to 0.12; a second resin member which has an absorbance a.sub.2 of 0.1 to 0.9 and includes a butted part where ends of one or more resin members are brought into contact with each other; and a third resin member which has an absorbance a.sub.3 of 0.2 to 3.8, and the absorbances a.sub.2, a.sub.3 exhibited by the second resin member and the third resin member are attributed to the inclusion of nigrosine as a laser beam absorbent therein, and the resin members are overlapped in the above mentioned to form contacted parts at these interfaces, at least a part of the butted part and/or the contacted parts are laser-welded.

A method for manufacturing a metal-clad laminate sheet containing (i) a thermoplastic liquid crystal polymer film comprising a thermoplastic polymer, and (ii) a metal foil bonded to at least one surface of the thermoplastic liquid crystal polymer film, the thermoplastic polymer being capable of forming an optically anisotropic molten phase, and the method containing: forming a laminate sheet having the thermoplastic liquid crystal polymer film and the metal foil bonded together; and heat treating the laminate sheet, wherein the heat treatment satisfies conditions (1) and (2): (1) wheat treatment temperature ranges between 1 C. inclusive and 50 C. exclusive higher than a melting point of the thermoplastic liquid crystal polymer film, and (2) a time for the heat treatment ranges from one second to 10 minutes.

A method for manufacturing a multilayer circuit board containing a single-sided metal-clad laminate sheet and a substrate laminated together, the single-sided metal-clad laminate sheet containing a thermoplastic liquid crystal polymer film and a metal foil bonded to a surface of the thermoplastic liquid crystal polymer film, and the method containing: forming a laminate sheet having the thermoplastic liquid crystal polymer film and the metal foil bonded together; and heat treating the laminate sheet, wherein the heat treatment satisfies conditions (1) and (2) to manufacture the single-sided metal-clad laminate sheet: (1) a heat treatment temperature ranges between 1 C. inclusive and 50 C. exclusive higher than a melting point of the thermoplastic liquid crystal polymer film, and (2) a time for the heat treatment ranges from one second to 10 minutes.

A liquid crystalline polyester resin composition is described, which includes a liquid crystalline polyester; and an amide compound including the following structural units (I) to (III), and having a melting point of 100 C. and a volume average particle diameter of 5 m and 50 m, wherein a content of the amide compound is 0.005 parts by mass and 0.1 parts by mass with respect to 100 parts by mass of a content of the liquid crystalline polyester, structural unit (I): CH.sub.3XCO, X represents an aliphatic hydrocarbon group having 10 carbon atoms or a hydroxy hydrocarbon group in which one or more hydrogen atoms of an aliphatic hydrocarbon group are substituted with a hydroxy group; structural unit (II): HNYNH, Y represents a hydrocarbon group having 2 carbon atoms; structural unit (III): OCZCO, Z represents an aliphatic hydrocarbon group having 4 carbon atoms, an alicyclic hydrocarbon group, or an aromatic hydrocarbon group.

A method for manufacturing a long-length resin molded body using a liquid crystal polyester is provided. The method includes injecting a resin composition containing the liquid crystal polyester via a gate into a cavity of a mold and filling the cavity with the resin composition. The mold cavity has a shape corresponding with the resin molded body and a gate is provided in a position where the distance from an end edge of the cavity in a long-length direction of the cavity is not more than 10% of the length of the long-length direction. The ratio of the length of the long-length direction relative to a length of a short-length direction of the cavity is two or greater. The length of the long-length direction is 200 mm or greater. A thickness of the cavity is at least 0.5 mm but not more than 3.0 mm.

Provided are a metal clad laminate and a method for producing the same. The metal clad laminate at least includes a thermoplastic liquid crystal polymer film and a metal sheet bonded to each other, wherein the thermoplastic liquid crystal polymer film has a surface with a glossiness (20) of 55 or higher in accordance with JIS Z 8741 on the opposite side of the bonding surface to the metal sheet. The method for producing a metal clad laminate at least includes: providing a thermoplastic liquid crystal polymer film 2 and a metal sheet 6; and introducing the thermoplastic liquid crystal polymer film 2 and the metal sheet 6 between a pair of heating rolls so as to laminate them.

A composition set according to the invention includes a first composition which contains a cellulose derivative having a liquid crystalline functional group, and a second composition which contains a liquid crystalline compound having a reactive functional group and can be in a liquid state. The first composition preferably contains particles whose surfaces are at least partially constituted by the cellulose derivative. Further, the first composition preferably contains a liquid component which functions as a dispersion medium for dispersing the particles.