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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The polyurethane foam according to claim 1, wherein the polyurethane foam is formed by foaming by means of mechanical frothing method. This series can satisfy any fields of customer needs. The polyurethane foam according to claim 6, wherein the hydrophilic group of the urethane resin is at least one of a sulfonate group, a carboxyl group and a hydroxyl group. Carbodiimide Crosslinking Agent 8: Mechanical systems and components for general use 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.
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.
Carbonate-based urethane emulsion emulsion of urethane having a carbonate grouppH 8, hydrophilic group: Click for automatic bibliography generation.
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 able to be increasedby using the urethane emulsion and the anionic foam stabilizer. For example, the number of monomers is preferably 3 or more, and the number of functional groups is also preferably 3 or more. The stirred and mixed raw materials are then applied to is the surface of a sheet that has low air permeability, and after adjusting to a prescribed thickness with a doctor knife and the like, the coated raw materials are dried by heating with an oven or drying oven and the like.
As a result, the dispersibility of the urethane resin improves. 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.
JIS K 6302: Cycles — Tyres
Examples of sheet-like packing materials made of polyurethane foam include those described in the following Patent Literature 1 and 2. If a cationic foam stabilizer is added to the urethane emulsion, polyurethane particles are attracted to each other through the cationic foam stabilizer and end up aggregating.
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However, there is no jus to exclude aliphatic isocyanates in which the number of monomers is 2 or less and the number of functional groups is 2 or less, and aliphatic isocyanates in which the number 66401 monomers is 2 or less and the number of functional groups is 2 or less are also able to be used.
Moreover, compressive i strain becomes low by that the raw materials of the polyurethane foam include either an aliphatic isocyanate or a melamine derivative. 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.
Polyurethane foam having hardness within these ranges has adequate pliability.
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RX | ROGERS INOAC CORPORATION
In other words, anionic foam stabilizers are not used as foam stabilizers in the polyurethane foams of Comparative Examples 1 and 2. As a result, a cmsslinked structure is formed in which the molecules 10 and 12 are electrically bonded.
In particular, the aliphatic isocyanate preferably has two functional groups such as isocyanate groups. Alert 640 in case of modifications on this product contact us. The following lists various aspects of the present invention.
JIS K 6401:2011
A urethane emulsion 3 to be subsequently described is an example of such a urethane emulsion having a hydrophilic group. The polyurethane foam according to claim 1, 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.
Polyurethane foam is formed by foaming raw materials that includes either an aliphatic isocyanate or a melamine derivative, a urethane emulsion, and an anionic foam stabilizer.
By this, it is possible to obtain polyurethane foam that is low density, pliable jiis resistant to collapse, i. However, the present invention is not limited jos 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 a person with ordinary skill in the art.
However, the present invention is not limited to the embodiment, and is able to be carried out in various aspects that have been subjected to various alterations and modifications based on the knowledge of a person with ordinary skill in the art.
A high-performance shock-absorbent series with cushioning and contour-fitting performance making it ideal for applications such as shoe insoles and sports pads.
Consumer Series | ROGERS INOAC CORPORATION
Polyurethane foams of Examples 1 to jks and Comparative Examples 1 to 10 were produced from the compounded or incorporated raw materials indicated in FIGS. The polyurethane foam according to claim 1, wherein a urethane resin of the urethane emulsion includes a hydrophilic group. The following provides a more detailed explanation of the present invention by indicating examples thereof. In addition, the urethane emulsion, which is a raw material of the polyurethane foam, is an emulsion in which a spherical urethane resin namely, polyurethane having a diameter of 0.
The polyurethane foam according to claim 1, wherein hardness JIS K thereof is 0. However, for example, the number of monomers may be 2 and the number of functional groups may be 2 to less than 3.
As depicted in FIG.