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Thermally insulated synthetic resin container and thermally insulated synthetic resin lid

A technology for synthetic resin and utensils, which is applied in the direction of heat-insulating utensils, containers, and heat-insulating containers, can solve the problems of high cost, long time to complete the process, complicated steps, etc., and achieves the effect of high air tightness

Inactive Publication Date: 2003-12-24
TAIYO NIPPON SANSO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problem is that the steps are complicated
[0013] In this method, molding may be performed at once, but when molding in a multi-color molding machine, there is a problem that continuous injection and cooling steps equal to the number of resin layers are necessary, and it takes a long time to complete the process
In addition, the structure of the metal mold is very complicated, so the cost is also very high
Moreover, the cost of the multi-color molding press itself is very high, so the overall cost is also very high

Method used

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  • Thermally insulated synthetic resin container and thermally insulated synthetic resin lid
  • Thermally insulated synthetic resin container and thermally insulated synthetic resin lid
  • Thermally insulated synthetic resin container and thermally insulated synthetic resin lid

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0050] Polyethylene naphthalene-2,6-dicarboxylate (Mitsubishi Chemical, Inc.,: NC 900 Z), an aromatic polyester, was used to make the heat-insulating vessel 1 . The thickness of the inner vessel 3 and the outer vessel 2 is between 0.5-5.0 mm, and the heat-insulating vessel 1 made of polyethylene naphthalene-2,6-dicarboxylate has different thicknesses of the inner vessel and the outer vessel. Krypton is used as the sealing gas.

[0051] Use these insulated vessels for two years to study how insulation performance changes over time. figure 2 Results are shown. In order to determine the thermal insulation performance of heat-insulating containers, put them in a constant temperature room at 20°C for 1 hour, put hot water at 95°C±1°C in it, cover the heat-insulating lid, and place them in a constant temperature room for 1 hour Then measure the water temperature.

[0052] from figure 2 It can be clearly seen that when the wall is very thin, its thermal insulation performance w...

example 2

[0056] The heat insulating vessel 1 was made of LCP (Sumitomo Chemical, Inc.,: Sumika Super E6806-WO2), which is a liquid crystal polyester. The thickness of the inner container 3 and the outer container 2 is between 0.5-3.0 mm, and the distance between them is 0.5 mm. The thickness of the inner and outer containers of the heat-insulating container 1 made of LCP is different. Krypton is used as the sealing gas.

[0057] Use these insulated vessels for two years to study how their insulating properties change over time. image 3 Results are shown. In order to determine the thermal insulation performance of heat-insulating containers, as in Example 1, put them in a constant temperature room at 20 ° C for 1 hour, put hot water at 95 ° C ± 1 ° C in it, cover the heat-insulating cover, and place them in the The water temperature was measured after 1 hour in the constant temperature chamber.

[0058] from image 3 It can be clearly seen in the figure 2 Similarly, in order to i...

example 3

[0062] The heat insulating vessel 1 was made of aliphatic polyketone (Shell Japan, Inc.,: Carilon), which is an aliphatic polyketone. The thickness of the inner container 3 and the outer container 2 is between 1.0-2.5 mm, and the thickness of the inner and outer containers of the heat-insulating container 1 made of aliphatic polyketone is different. Krypton is used as the sealing gas.

[0063] Use these insulated vessels for two years to study how their insulating properties change over time. Figure 4 Results are shown. In order to determine the thermal insulation performance of the heat-insulating container, as in Example 1 and 2, put it in a constant temperature room at 20°C for 1 hour, put hot water at 95°C±1°C in it, cover the heat-insulating cover, and place them The water temperature was measured after leaving in the constant temperature chamber for 1 hour.

[0064] from Figure 4 It can be clearly seen in the figure 2 with 3 Similarly, in order to insulate a syn...

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Abstract

The present invention relates to a thermally insulated synthetic resin container (1) and a thermally insulated synthetic resin lid (21). The synthetic thermally insulated container (1) has a thermally insulating layer (4) formed in the space between the inner container (3) and the outer container (2), which comprise at least one synthetic resin selected from among the group comprising polyester, aromatic polyamide, polyketone, polyvinylidenefluoride, acrylonytrile-type resin, and cycloolefin-type resin, with a low thermally conductive gas having a thermal conductivity lower than air sealed therein. Similarly, the thermally insulated synthetic resin lid (21) has an thermally insulating layer (24) formed in the space between the synthetic resin lower lid member (22) and the upper lid member (23). The thermally insulated synthetic resin container (1) and lid (21) can be made from only one type of resin, are easy to manufacture, and are superior in thermal insulation performance and maintaining thermal insulation performance over time.

Description

technical field [0001] The present invention relates to heat-insulating containers and heat-insulating covers for thermos bottles, freezer boxes, ice boxes, insulating cups, heat-insulating lunch boxes, etc., and in particular to synthetic resin heat-insulating containers and synthetic resin heat-insulating covers with heat-insulating layers. The thermal layer is formed by sealing a gas with low thermal conductivity between the two-layer synthetic resin wall structure. [0002] The present invention is based on Japanese Patent Application No. Hei 10-70867, the contents of which are incorporated herein by reference. Background technique [0003] Generally for heat insulating containers for hot water bottles, thermal lunch boxes, insulating cups, etc., improvements have been proposed in the processing and development of synthetic resin heat insulating containers even though they are light in weight, easy to mold and low in cost. For the synthetic resin heat-insulating contain...

Claims

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Application Information

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IPC IPC(8): A47G19/00A45C11/00A47J41/00B65D8/06B65D81/38
CPCB65D81/3818B65D7/04
Inventor 藤井孝文山田雅司田中笃彦
Owner TAIYO NIPPON SANSO CORP
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