There is provided a joined body in which two or more members Yi including a fitting hole are fastened, in which a fastening rod including reinforcing fibers and a thermoplastic resin is positioned in the fitting hole, the fastening rod is caulked by heat, and the members Yi are caulking-fastened.

Multilayer films which are highly biodegradable in a marine environment and highly disintegratable in domestic composting comprising an aliphatic polyester, an aliphatic-aromatic polyester, one or more lactic acid polyesters and optionally an inorganic filler, a cross-linking agent and/or a chain extender.

The present invention relates to a method of manufacturing a wind turbine blade, comprising arranging one or more layers of fibre material and a preform in a mould (66), injecting the one or more layers of fibre material and the preform (76) with a curable resin, and curing the resin. The preform (76) is impregnated with a curing promoter such that the concentration of curing promoter varies spatially within the preform.

A composite core material and methods for making the same are disclosed herein. The composite core material comprises mineral filler discontinuous portions disposed in a continuous encapsulating resin. Further, the method for forming a composite core material comprises the steps of forming a mixture comprising mineral filler, an encapsulating prepolymer, and a polymerization catalyst; disposing the mixture onto a moving belt; and polymerizing said encapsulating prepolymer to form a composite core material comprising mineral filler discontinuous portions disposed in a continuous encapsulating resin.

The present disclosure relates to a method for continuously producing a sheet prepreg containing a carbon fiber mat and a thermosetting resin composition impregnated therein.

The present invention relates to: a polyester resin mixture comprising a polyester copolymer prepared using a recycled monomer; a method for preparing same; and a polyester film prepared thereby, wherein the polyester resin mixture has excellent extrusion properties (processability), and thus can provide a polyester film having excellent physical properties and/or quality.

A method produces a polyester film with high recycling efficiency. The method includes mixing a recovered polyester resin (A) with a polyester resin (B) containing an aluminum compound and a phosphorus compound, wherein the polyester resin (A) satisfies (1) to (3) and the polyester resin (B) satisfies (4): (1) the polyester resin (A) contains at least one element selected from antimony element, titanium element, and germanium element, (2) a total content of the antimony element, the titanium element, and the germanium element in the polyester resin (A) is 2 to 500 ppm by mass, (3) the polyester resin (A) has an intrinsic viscosity of 0.5 to 0.8 dl/g, and (4) the polyester resin (B) is obtained by polycondensation of a raw material containing bis-2-hydroxyethyl terephthalate obtained by decomposing polyester resin.

A polymeric sheet includes a gradient repeating domain structure represented as -(A-AB.sub.1-B-AB.sub.2).sub.n-, -(A-AB-B).sub.n-, -(A-AB).sub.n-, -(AB).sub.n-, or -(AB.sub.1-AB.sub.2).sub.n- where A represents a domain region of component A, B represents a domain region of component B, and AB.sub.1, AB.sub.2, and AB each represent domain regions containing one or more mixtures of thermoplastic polymer A and thermoplastic polymer B. The polymeric sheet is configured as a dental appliance for positioning a patient's teeth.

Disclosed herein are methods for producing recycled liquid crystal polymer filaments. The methods include feeding one or more used liquid crystal polymer filaments, optionally in combination with a virgin liquid crystal polymer material, and optionally in combination with a depolymerization catalyst, into an extruder; and extruding the recycled liquid crystal polymer filament.