JIS K Flexible cellular polymeric materials — Polyurethane foam for load-bearing applications excluding carpet underlay — Specification (Foreign. JIS K Flexible polyurethane foam for cushion (FOREIGN STANDARD ). Content Provider Japanese Industrial Standards [JIS]. JIS K Flexible cellular polymeric materials – Polyurethane foam for load-bearing applications excluding carpet underlay – Specification This Japanese.
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In this manner, the polyurethane foam of the present invention has superior properties as a cushioning material or packing material and the like in terms of pliability, high recovery properties and high strength. In addition, the cell diameter of the polyurethane foams was measured.
PORON® FootPad Physical Properties/Product Availability
Energy and heat transfer engineering Polyurethane foams of Examples 1 to 32 and Comparative Examples 1 to 10 were produced from the compounded or incorporated raw materials indicated in FIGS. When this amount of anionic foam stabilizer is added, suitable foaming is ensured and a fine cell structure is able to be formed. In this manner, the use of either an aliphatic isocyanate Crosslinking Agents 1 to 5, 8 and 9 or a melamine derivative Crosslinking Agent 6 as a crosslinking agent in the raw materials of polyurethane foam makes it possible to realize polyurethane foam having high recovery properties.
High build coating compositions. After applying the stirred and mixed raw materials froth to the surface of a sheet that has low air permeability and adjusting the thickness of the applied raw materials by means of a roll coater, doctor knife, comma coater or slot die coater and the like to a prescribed thickness, the raw materials are dried by heating with an oven or a drying oven and the like.
In addition, there are no particular limitations on the number of monomers number of monomers with respect to monomers having two isocyanate groups and the number of functional groups number of isocyanate groups of the aliphatic isocyanate, provided that they are values that allow the aliphatic isocyanate to function as a crosslinking agent in an appropriate manner.
Further, this application is based upon and claims the benefit of priority from the prior Japanese Patent Application No. Consequently, an aliphatic isocyanate having a number of monomers of 3 or more and preferably 3 and a number of functional groups of 3 or more and preferably 3 to less than 4 is preferably used as a crosslinking agent.
More specifically, an amphoteric foam stabilizer is used as a foam stabilizer in the polyurethane foam of Comparative Example 1, and a nonionic foam stabilizer is used as a foam stabilizer in the polyurethane foam of Comparative Example 2.
The method for producing polyurethane foam according to claim 12, wherein the anionic foam stabilizer includes jos ammonium stearate and sodium alkylsulfosuccinate. As has been described above, the polyurethane foam of the present invention has low density and low hardness. Moreover, using both of ammonium stearate and sodium alkylsulfosuccinate as anionic foam stabilizers is preferable.
However, the fineness of the cells is able to be increased and the density of the polyurethane foam is able to be lowered namely, pliability is ji to be increasedby using the urethane emulsion and the uis foam stabilizer. In view of the foregoing, an object of the present invention is to provide polyurethane foam that has very fine cells such as cells having a diameter of 0.
By using the kis emulsion and the anionic foam stabilizer as raw materials of the polyurethane foam, the cells are able to be made to be very fine and the density of the polyurethane foam is able to be lowered namely, pliability is able to be increased. What is claimed is: As a result, polyurethane foam having high recovery properties, namely polyurethane foam that is resistant to collapse, is realized.
The polyurethane foam according to claim 1, wherein the aliphatic isocyanate has 3 or more monomers and 3 or more functional groups. For more detailed product data, please place a request via our online inquiry form.
Japanese Laid-open Patent Publication No. The urethane resin of the urethane emulsion is formed from an isocyanate and a polyol. The method for producing polyurethane foam according to claim 12, wherein an amount of the anionic foam stabilizer is 2 parts by weight to 60 parts by weight in case that an amount of the urethane emulsion is parts by weight. The physical properties of the polyurethane foams of Examples 1 to 32 and Comparative Examples 1 to 10 produced in the manner described above were evaluated according to the methods indicated below.
HDI monomer monomer of hexamethylene diisocyanate. As a result, polyurethane foam is able to be realized that is resistant to collapse. However, it is needed to properly adjust the compounded amount of foam stabilizer even in the case of using both ammonium stearate Anionic Foam Stabilizer 1 and sodium dialkylsulfosuccinate Anionic Foam Stabilizer 2 two types of foam stabilizers as foam stabilizers.
You have no items in your shopping cart. The polyurethane foam formed by foaming the previously described raw materials is a material that has high recovery properties.
A high-performance shock-absorbent series with cushioning and contour-fitting performance making it ideal for applications such uis shoe insoles and sports pads. The following provides explanation of an embodiment of the present invention. More specifically, in the polyurethane foams of Comparative Examples 3, 4 and 8, a crosslinking agent is not used in the raw materials. The aforementioned raw materials are weighed out in the compounded amounts weight ratios indicated in FIGS.
By this, it is possible to obtain polyurethane foam that is low density, pliable and resistant to collapse, i. In the case of nota foam stabilizer, froth is not formed even if the urethane emulsion is stirred while an inert gas is blown into them. In addition, the hardness MPa of the polyurethane foams was measured.
Domestic and commercial equipment. Audio and video engineering This application is a continuation of International Application No. Polyurethane foam having hardness within these ranges has adequate pliability. Uis Expert Search Quick Search.
As a result, the dispersibility of the urethane resin improves. A plurality of bubbles cells are formed by this stirring and mixing resulting in the formation of froth, or in other words, an aggregate of bubbles.
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Road vehicles engineering However, the present invention is not limited to these examples, and is able to be carried out in various aspects that have been subjected to various alterations and modifications based on the knowledge of jus person with ordinary skill in the art. In other words, these polyurethane foams have suitable pliability. In other words, anionic foam stabilizers are not used as foam kis in the polyurethane foams of Comparative Examples 1 jls 2. The polyurethane foam according to claim 1, wherein hardness JIS K thereof is 0.
This measured value is preferably 0. Moreover, compressive residual strain becomes low by that the raw materials of the polyurethane foam include either an aliphatic isocyanate or a melamine derivative. Paint and colour industries