Composite forming body, production method thereof and in-mould label
A composite molded body and manufacturing method technology, applied in the direction of coating, etc., can solve the problem that it is difficult to express the characteristics of crystalline thermoplastic resin, and achieve the effect of increasing manufacturing cost and improving adhesion
Inactive Publication Date: 2014-07-09
POLYPLASTICS CO LTD
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Problems solved by technology
[0008] However, in the state where the crystallinity of the above-mentioned molded article is low, it is difficult to express the characteristics of the above-mentioned crystalline thermoplastic resin.
Method used
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Embodiment
[0076] Hereinafter, examples are given to describe the present invention in more detail, but the present invention is not limited by these examples.
[0077]
[0078] Using polyphenylene sulfide resin (glass transition temperature (Tg) 80°C, recrystallization temperature (Tc) 120°C, "FORTRON (registered trademark) 0220A9" manufactured by Polyplastics Co., Ltd.) The melt-extrusion method quenched from a molten state at a temperature lower than the glass transition temperature to produce a crystalline thermoplastic resin film 1 having a length of 45 mm, a width of 45 mm, and a thickness of 0.1 mm (100 μm).
[0079] The degree of crystallinity of the crystalline thermoplastic resin film 1 was measured by a general method using an X-ray diffraction method. The degree of crystallinity was 14.4%. As will be described later, in the molded composite body, the crystallinity of the portion directly in contact with the heat insulating layer during molding was 33.9%. When this is set ...
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Abstract
The invention provides the composite forming body, which can be used to improve the thin layer from the thin-shaped forming body and the density of the forming body layer from the resin composition. The invention is advantageous in that the production costs are not increased and the production rate is barely reduced. The forming body can be produced under the following condition: the thin layer of the crystalline thermo resin thin-wall forming body and the boundary of the forming body layer from the fusion resin composition are melt with each other and can form a crystallized mixed layer. The invention can be produced under the following forming method, in at least one part of heat insulation layer of inner surface of the module is configured with the crystallized thermo resin thin wall forming body, the crystallized thermo resin thin wall forming body can use materials with the crystallization of the thin wall part under 60%.
Description
technical field [0001] The present invention relates to a composite molded body, a method for producing a composite molded body, and an in-mold label. Background technique [0002] Many of the crystalline thermoplastic resins are known to have excellent physical properties such as mechanical strength, heat resistance, chemical resistance, and electrical properties. Crystalline thermoplastic resins having these excellent physical properties have been widely used in recent years as raw materials for molded articles of automobiles, electronic / electronic parts, chemical equipment, and the like. [0003] The molded body for this purpose is usually formed by one-time molding, but sometimes the double molding method in which the molding is divided into two steps has to be used. Especially for molded objects with complex shapes, it is often difficult to obtain a desired molded object by one-time molding. In addition, when obtaining molded parts that incorporate all or part of othe...
Claims
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IPC IPC(8): B29C45/14
Inventor 宫下贵之
Owner POLYPLASTICS CO LTD