MANUFACTURE OF MOLDING MADE OF FRP

• Main Authors: ISHIDA YOSHIAKI, KANO SABURO
• Format: Patent
• Language: English
• Published: 11.03.1988
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS; PERFORMING OPERATIONS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

PURPOSE:To obtain a molding made of FRP which is of a high quality and superior in design and fashionabilities, by using a molding and molding material of a decorative sheet made of FRP and providing the end part of the molding with specific form dimensions and the specific modulus of bending elasticity. CONSTITUTION:When a molded product 1 of a decorative sheet whose thickness (t) of an end part of the molding 1 of the decorative sheet is half as thick as of a thickness (T) of the same or less and tilting angle (theta) is 80 deg. or less is used, the molding of the fine crest line can be obtained. Then modulus of bending elasticity of the molding 1 of the decorative sheet is 50-500kg/mm at an atmospheric temperature of 120-150 deg.C further. It is not preferable as the molded product 1 of the decorative sheet is apt to warp when the modulus of bending elasticity is higher than 500kg/mm and a crank or cut-off is generated by flow pressure of a molding material 2 when the same is lower than 50kg/mm at the time of molding. Press molding of the molding of the decorative sheet is performed by mounting the same underneath the molding material and a color tone of the molding material is different from that of the molding of the decorative sheet.