PREPARATION OF COMPOSITE MOLDED PRODUCT

PURPOSE:To efficiently prepare an integrated composite molded product wherein a surface layer part is composed of a resin phase containing a fibrous reinforcing material and a core part is composed of a porous resin phase containing air bubble particles. CONSTITUTION:An extensible air permeable shee...

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Bibliographic Details
Main Authors INOUE MASATAKA, YAMAMOTO SHIRO
Format Patent
LanguageEnglish
Published 07.10.1992
Subjects
AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES
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
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Summary:PURPOSE:To efficiently prepare an integrated composite molded product wherein a surface layer part is composed of a resin phase containing a fibrous reinforcing material and a core part is composed of a porous resin phase containing air bubble particles. CONSTITUTION:An extensible air permeable sheet (11) permitting the passage of gas and the penetration of a resin but preventing the free passage of the resin, a sheet (12) composed of a fibrous reinforcing material and a mixture (14) of foamable particles and a thermosetting resin are received in a mold and the mold is closed to perform molding under heating. The gas generated at the time of molding is discharged from the molding space of the mold through the air permeable sheet.
Bibliography:Application Number: JP19910069503