METHOD FOR MANUFACTURING GLASS FIBER-REINFORCED RIGID POLYURETHANE FOAM

PROBLEM TO BE SOLVED: To provide a glass fiber-reinforced rigid polyurethane foam which requires no surplus raw material because the height of the end parts in the width direction is not large and shows the capability to reduce the volume of waste and also a high uniformity of a glass fiber density...

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Bibliographische Detailangaben
Hauptverfasser:	KAMEZAKI KAZUHIKO, YAMAMOTO YUKIO, SUGIURA YU, INOUE TAKESHI, KOMATSU YASUO, DAITOKU MOTOYA, ISHINO SEIJI
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING MAKING GRANULES OR PREFORMS PERFORMING OPERATIONS PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS 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
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a glass fiber-reinforced rigid polyurethane foam which requires no surplus raw material because the height of the end parts in the width direction is not large and shows the capability to reduce the volume of waste and also a high uniformity of a glass fiber density near the end parts. SOLUTION: This method for manufacturing a glass fiber-reinforced rigid polyurethane foam comprises an underside material supply process to supply an underside material, a glass fiber mat supply process to supply a glass fiber mat to the surface of the underside material, a stock solution supply process to supply a rigid polyurethane foam foaming stock solution to the glass fiber mat and impregnate the latter with the former and a foaming process to cause the foaming stock solution to chemically react and foam to manufacture the glass fiber-reinforced rigid polyurethane foam. In addition, this method includes a glass fiber dispersion process to increase the thickness of the glass fiber mat.