An embodiment method of manufacturing an interior component for a vehicle using a real material includes bonding a plurality of laminated printed layers on a rear surface of the real material, injection-molding an injection-molded product that processes a shape by putting the real material into a molding mold and laminating the real material on the injection-molded product injection-molded in a shape corresponding to the processed shape of the real material, forming a light-transmitting part that processes a symbol part on a front surface of the real material and forming a light-transmitting part protruding in a shape of the symbol part, and mounting a light source unit on the injection-molded product, the light source unit configured to be selectively lighted through the light-transmitting part in response to detecting a change in a capacitance from the front surface of the real material.

A method of manufacturing a composite silicone decorative piece includes the following steps: providing a mold, placing a first heat-melting layer in a mold cavity of the mold to correspond to a placement area; injecting a liquid silicone to fill the mold cavity and cover the first heat-melting layer; laying the second heat-melting layer on the liquid silicone; heating the mold to connect the first heat-melting layer and the second heat-melting layer to the liquid silicone through heating and melting; cooling the mold to solidify the liquid silicone to form a silicone layer between the first heat-melting layer and the second heat-melting layer, thereby obtaining the composite silicone decorative piece. In another embodiment, a shoe component includes the composite silicone decorative piece is connected a shoe upper and an outsole, and the silicone layer is exposed on the shoe upper.

A resin formed article, comprising a main body that includes a first resin; a functional layer that is disposed at at least a portion of a surface of the main body and includes a fiber and a second resin; and a projection that is disposed on the functional layer and includes the first resin and the second resin.

The present invention relates to the use of polyisocyanate compositions and trimerization catalysts for production of coatings by reaction injection molding. The present disclosure also describes the coatings obtained by the use. The correspondingly coated workpieces are also described in this disclosure. A method for coating workpieces by reaction injection molding is also described herein.