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, 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. The use of a urethane emulsion and 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.
Examples of sheet-like packing materials made of polyurethane foam include those described in the following Patent Literature 1 and 2.
Materials handling equipment The polyurethane foam according to claim 1, wherein hardness JIS K thereof is 0. The method for producing polyurethane foam according to claim 12, wherein the anionic foam stabilizer includes both ammonium stearate and sodium alkylsulfosuccinate.
JIS K – Flexible polyurethane foam for cushion (FOREIGN STANDARD)
Alkyl alkanolamide, pH On the basis thereof, the use of both ammonium stearate Anionic Jiz Stabilizer 1 and sodium dialkylsulfosuccinate Anionic Foam Stabilizer 2 two types of foam stabilizers as foam stabilizers in the raw materials of polyurethane foam is preferable. Hydrophilic HDI isocyanurate, number of functional groups: Ether-based urethane emulsion emulsion of urethane having iis bondspH 8, hydrophilic group: More specifically, in the polyurethane foams of Comparative Examples 3, 4 and 8, a crosslinking agent is not used in the raw materials.
Double-sided adhesive tapes were used to adhere or stick the PET films.
Latest News of the Blog. Japanese Laid-open Patent Publication No. Moreover, using both of ammonium stearate and sodium alkylsulfosuccinate as anionic foam stabilizers is preferable.
POLYURETHANE FOAM AND PRODUCTION METHOD FOR THE SAME – INOAC CORPORATION
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. Carbonate-based urethane emulsion, pH 8, hydrophilic group: 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 the case that the aliphatic isocyanate is used as a crosslinking agent, a hydrophobic group is preferably included therein.
Log In Sign Up. This measured value is preferably 0. In view of the foregoing, an object of the jls invention is to provide polyurethane foam that has very fine cells such as cells having a diameter of 0.
Can be used as the optimal secondary water sealant for for sealing water in public construction and civil engineering as well as for waterproofing water supply systems in household equipment.
Sciences humaines et sociales, lettres. The following provides explanation of an embodiment of the present invention. For more detailed product data, please place a request via our online inquiry form. jjis
The polyurethane foam of the present invention is formed by foaming or expansion-molded from raw materials including either an aliphatic isocyanate or melamine derivative, a urethane emulsion and an anionic foam stabilizer.
This grade is specifically for foot rubber. As a result, polyurethane foams of Examples 1 to 32 and Comparative Examples 1 to 10 are formed. The aforementioned raw materials are weighed out in the compounded amounts weight ratios indicated in FIGS. Extruded polystyrene resin foam. Polyurethane foam is used in products in various fields due to its considerable pliability and cushioning properties.
Click for automatic bibliography generation. In this manner, the use of an anionic foam stabilizer for the foam stabilizer in the raw materials of polyurethane foam, and particularly the use of only an anionic foam stabilizer, makes it possible to realize polyurethane foam having high recovery properties.
An entry type with a good balance of shock absorption and moderate impact resilience. In addition, although olefin-based foam and 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.
Hydrophobic Kk isocyanurate hydrophobic isocyanurate formed from hexamethylene diisocyanatenumber of functional groups: More specifically, cell status and the surface of the polyurethane foams were evaluated visually. After allowing it to stand for 22 hours, the compressive residual strain of the sample is measured in accordance with JIS K Rubber and plastic industries