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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However, cationic foam stabilizers are not preferable since the urethane emulsion is anionic.
As described above, the aliphatic isocyanate and melamine derivative may be apparent crosslinking agents which electrically bonds molecules, or may be crosslinking agents which electrically bond molecules and chemically bonds the molecules. The use of a urethane emulsion j anionic foam stabilizer as raw materials of the polyurethane foam enables cell fineness to be increased and density of the polyurethane foam to be lowered, thereby making it possible to ensure pliability of the polyurethane foam that has fine cells suitable for a thin packing material.
Textile and leather technology 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.
Hydrophobic HDI allophanate i. Polyurethane foam that is formed using an aliphatic isocyanate with a hydrophobic group as a js material is resistant to hydrolysis, and the function thereof as a cushioning material or packing material and the like is enhanced. In addition, there are no particular limitations on 64401 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.
A high-performance shock-absorbent series with cushioning and contour-fitting performance making it ideal for applications such as shoe insoles ijs sports pads. As a result, polyurethane foams of Examples 1 to 32 and Comparative Examples 1 to 10 are formed. A high-performance shock-absorbent series with cushioning and shape traceability properties making it ideal for applications such as shoe insoles and sports pads.
The following indicates the details of each raw material.
Health care technology After allowing it to stand for 22 hours, the compressive residual strain of the sample is measured in accordance with JIS K A urethane emulsion 3 to be subsequently described is an example of such a urethane emulsion having a hydrophilic group. Polyurethane foam is used in products in various fields due to 6410 considerable pliability and cushioning properties.
Polyurethane foams made with alkoxylated vegetable oil hydroxylate. However, when the cells are jsi to be made increasingly fine in order to reduce the thickness of i packing material, the polyurethane does not adequately foam and density becomes high. Embodiments The following provides explanation of an embodiment of the present invention. 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.
CROSS-REFERENCE TO RELATED APPLICATION
Although foaming is able to be carried out by various techniques, foaming by mechanical frothing method is preferable. The Foot Pad series includes materials with a comparably high hardness grade.
The following lists various 64401 of the present invention.
Click for automatic bibliography generation. Carbonate-based urethane emulsion emulsion of urethane having a carbonate grouppH 8, hydrophilic group: In addition, the urethane emulsion, which is a raw material of the polyurethane foam, is an emulsion kk which a spherical urethane resin namely, polyurethane having a diameter of 0.
By using the urethane 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.
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Domestic and commercial equipment. Hydrophilic HDI isocyanurate, number of functional groups: In addition, although olefin-based foam ijs acrylics-based foam are able to be used as sheet-like packing materials and the like and are able to improve pliability of packing materials, olefin-based foam and is acrylics-based foam generally have high compressive residual strain and collapse easily.
Ammonium stearate, pH 11, solid fraction: Glass and ceramics industries Shipbuilding and marine structures Fluid systems and components for general use By this, it is possible to obtain polyurethane foam that is low density, pliable and resistant to collapse, i. Furthermore, the urethane resin of the present invention preferably contains at least one of a sulfonic acid group, a carboxyl group and a hydroxyl group for the hydrophilic group.
Moreover, using both of ammonium stearate and sodium alkylsulfosuccinate as anionic foam stabilizers is preferable. Energy and heat transfer engineering his Extruded polystyrene resin foam. Lauryl betaine, pH 7. Further, this application is based upon and claims the benefit of priority from the prior Japanese Patent Application No.
This application is a continuation of International Application No. In the case that the aliphatic isocyanate is used as jks crosslinking agent, a hydrophobic group is preferably included therein.
Examples of sheet-like packing materials made of polyurethane foam include those described in the following Patent Literature 1 and 2. Although it is possible to use either the aliphatic isocyanate or melamine derivative as a crosslinking agent, the use of the aliphatic isocyanate as is a crosslinking agent is preferable when considering the use of the polyurethane foam as a cushioning material or packing material of electronic equipment and the like.
Recovery of fluorinated surfactants from a ijs anion exchange resin having quaternary ammonium groups. In addition, the hardness JIS K of the polyurethane foam is preferably 0.
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 6041 doctor knife and the like, the coated raw materials are dried by heating with an oven or drying oven and the like. We wish you a pleasant end-of-year holiday.
Hydrophobic HDI isocyanurate hydrophobic isocyanurate formed from hexamethylene diisocyanatenumber of functional groups: Japanese Laid-open Patent Publication No. As a jsi, polyurethane ji having high recovery properties, namely polyurethane foam that is resistant to collapse, is realized.
For more detailed product data, please place a request via our online inquiry form. In the case of not using a foam stabilizer, froth is not formed even if the urethane emulsion is stirred while an inert gas is blown into them.