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Flexible urethane foam and its production and material system used for it thereof

A technology of polyurethane foam and blowing agent, which is applied in the field of flexible polyurethane foam and its manufacture and the material system used for its manufacture, and can solve problems such as insufficient support

Inactive Publication Date: 2007-06-13
ASAHI GLASS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the feeling of support is insufficient, and the durability, especially the permanent compression deformation of hot flashes is insufficient.

Method used

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  • Flexible urethane foam and its production and material system used for it thereof
  • Flexible urethane foam and its production and material system used for it thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-5 and comparative example 1-4

[0120] The flexible foam was produced by using the materials shown in Table 2 and the amounts of the materials shown in Table 3 (numbers indicate mass fractions). In these materials, the polyol-based liquid and the polyisocyanate compound are each adjusted to have a liquid temperature of 25±1°C, and a predetermined amount of the polyisocyanate compound is added to the polyol-based liquid, followed by mixing and stirring with a high-speed stirrer for 5 seconds , Immediately pour the mixture into an aluminum mold with a size of 400 mm in length, 400 mm in width and 100 mm in height, and heat to 60° C. After curing for 6 minutes, the flexible foam was removed and allowed to stand for at least 24 hours before various physical properties were measured. The measurement results are shown in Table 3. Here, the method of measuring the physical properties of the foam is according to the following methods: using a part cut into a size of 100 mm long, 100 mm wide, and 50 mm high, with a ...

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PUM

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Abstract

A flexible polyurethane foam, wherein in a load (N)-deflection (mm) loop obtained by a load test of the flexible polyurethane foam, the X value as calculated from the formula (1) is at most 4.2: X=(static spring constant at a load of 883N) / (static spring constant at a load of 98N) (1).

Description

technical field [0001] The present invention relates to flexible polyurethane foams, methods for their manufacture and material systems for their manufacture. Background technique [0002] In recent years, with the progress of the automobile industry, people expect not only the improvement of automobile performance, but also the improvement of high-grade vehicle interior and inner comfort. From the standpoint of improving ride comfort, it has been strongly desired to develop flexible polyurethane foams (hereinafter referred to as flexible foams) having better cushioning properties for manufacturing seats. [0003] Heretofore, combinations of metal springs and cushion materials including flexible foam have been widely used as seat cushions. However, in recent years, due to demands for cost reduction, weight reduction, etc., the use of so-called all-foam type car seats tends to be used, and metal springs are no longer used because the flexible foam itself is made to have spri...

Claims

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Application Information

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IPC IPC(8): C08G18/67C08G18/76C08K3/18C08G18/40C08G18/48
CPCC08G18/4841C08G2101/0008C08G2350/00C08G2101/005C08G18/7607C08G18/4866C08G2101/0083C08G18/4072C08G2110/0008C08G2110/005C08G2110/0083C08G18/76
Inventor 丰田贤伯和田浩志赤木悦子
Owner ASAHI GLASS CO LTD
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