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OwnerKazuhiro Suga, Shinnosuke Hiratainventors
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A decorative sheet for injection-molding and decorating a resin simultaneously, the decorative sheet containing two resin sheets laminated on each other with at least one patterned layer intervening therebetween, and the two resin sheets having a difference in linear expansion coefficient of 4×10−5/° C. (41 to 50° C.) or less. Even after subjecting to three-dimensional processing, such as vacuum molding, the decorative sheet suffers no warpage, and can be easily released from a mold for the three-dimensional processing, and even when the decorative sheet is set in a mold for injection molding, the decorative sheet does not fall off from the mold, a resin injected does not permeate a gap between the outer surface of the decorative sheet and the mold, and the decorative sheet suffers no peeling between the sheets constituting the decorative sheet.
A simultaneous injection molding-decorative sheet capable of attaining injection molding of a resin and decoration simultaneously, the decorative sheet comprising two resin sheets laminated on each other with at least one patterned layer intervening therebetween, the two resin sheets having a difference in linear expansion coefficient of 4×10−5/° C. (41 to 50° C.) or less.
A process for producing a decorative sheet comprising two resin sheets having a difference in linear expansion coefficient of 4×10−5/° C. (41 to 50° C.) or less, at least one patterned layer being provided between the resin sheets, and the process comprising laminating the two resin sheets by a dry laminating method, a hot laminating method, an extrusion laminating method or a heat laminating method.
Dependencies are inferred from the claim text.