Structure having liquid layer on surface

A structure and liquid layer technology, applied in the field of structures, can solve the problems of disappearance of surface characteristics, and achieve the effect of long-term display of surface characteristics

Inactive Publication Date: 2017-02-22
TOYO SEIKAN GRP HLDG LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the above-mentioned means of improving surface properties by forming a liquid layer on a resin-made surface is accompanied by a problem or difficulty in sustaining improved surface properties over a long period of time
That is, the liquid forming the liquid layer gradually penetrates and diffuses into the base resin layer, and as a result, the improved surface characteristics disappear over time

Method used

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  • Structure having liquid layer on surface
  • Structure having liquid layer on surface
  • Structure having liquid layer on surface

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0099] As the base resin, low-density polyethylene (LDPE) having a glass transition point (Tg) of -120°C was provided.

[0100] As fine particles for filling the amorphous portion, further, silica fine particles having a mesh particle size of 20 μm or less and an average particle size (measured by a laser diffraction light scattering method) of 10 μm or less are provided .

[0101] LDPE was fed to extruder A and a resin composition of LDPE / silica fine particles=99 / 1 (weight ratio) was fed to extruder B by using a Laboplusto-mill. These resins were extruded through an annular die maintained at a temperature of 210° C. to prepare a cylinder comprising LDPE on the inner side and a fine particle-blended resin (LDPE / silica fine particle resin composition) on the outer side shaped two-layer film. The film thickness was measured by using a microscope; that is, the LDPE layer on the inner side was about 60 μm thick, the fine particle-blended resin layer on the outer side was about 7...

Embodiment 2

[0104] A film was produced in the same manner as in Example 1 except that the weight ratio of LDPE / silica fine particles was set to 97 / 3. The film is coated with liquid and its liquid coverage is measured. The results are shown in Table 1.

Embodiment 3

[0106] A film was prepared in the same manner as in Example 1 except that the weight ratio of LDPE / silica fine particles was set to 95 / 5. The film is coated with liquid and its liquid coverage is measured. The results are shown in Table 1.

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Abstract

The present invention relates to a structure, specifically, a container, that has a liquid layer on a surface of the resinous base. In bottles especially for containing high-viscosity liquids, the inner bottle surface is required to have high slidability against the contents so that the contents are rapidly discharged and completely used up without remaining in the bottle. Recently, various techniques have been proposed in which the slidability against viscous substances is heightened by forming a liquid layer on a surface of a resinous base. The structure of the present invention includes a surface of a resinous base and a liquid layer supported on the base surface, and is characterized in that fine particles which inhibit the liquid layer from infiltrating have been dispersed in the resin constituting the base surface. This structure is effective in minimizing the conventional problem wherein the liquid layer disappears with the lapse of time.

Description

technical field [0001] The present invention relates to a structure, and more particularly to a container in which a liquid layer is formed on the surface of a resin base. Background technique [0002] Plastic materials are easy to form and can be easily formed into various shapes, and thus, have been widely used for various purposes. In particular, bottles whose inner wall surfaces are formed by using polyester represented by polyethylene terephthalate (PET) have been favorably used as containers for containing various beverages, edible oils, seasoning liquids, and the like. [0003] Here, a bottle for containing a particularly high-viscosity liquid must have an inner surface that exhibits high slipperiness for the contents so that the contents can be drained quickly and used up to the last drop without remaining in the bottle. [0004] In recent years, various techniques for improving slipperiness to viscous substances by forming a liquid layer on the surface of a resin-m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65D65/40B65D1/00B65D85/72
CPCB65D1/0207B65D1/0215B65D1/0246B65D85/72C08K3/26C08K3/36C08K9/04C08K2003/265C08K2201/005B65D65/40B65D1/00
Inventor 岩本晋也阿久津洋介冈本耕太
Owner TOYO SEIKAN GRP HLDG LTD
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