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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For example, the number of monomers is preferably 3 or more, and the number of functional groups is also preferably 3 or more. By the way, the urea bond 8 and the urethane bond are polar 640. After allowing it to stand for 22 hours, m compressive residual strain of the sample is measured in accordance with JIS K Rubber and plastic industries The method for producing polyurethane foam according to claim 12, wherein the aliphatic isocyanate has 3 or more monomers and 3 or more functional groups.
JIS K 6302: Cycles — Tyres
In addition, since aliphatic isocyanates react more mildly with water in comparison with aromatic isocyanates and the like, they suitably function as crosslinking agents of a urethane emulsion. As a result, polyurethane foam is able to be realized that is resistant to collapse.
A method for producing polyurethane foam, comprising: 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.
Carbodiimide 6041 Agent 8: Ammonium stearate, pH 11, solid fraction: The method for producing polyurethane foam according to claim 12, wherein a urethane resin of the urethane emulsion includes a hydrophilic group.
The present inventions are related to polyurethane foam formed by foaming a urethane emulsion and production method thereof.
Click for automatic bibliography generation. Shipping Delivery Order tracking Returns. In addition, the anionic foam stabilizer used as a raw material of the polyurethane foam is for ensuring stable foaming.
In addition, an isocyanate normally used o a urethane resin raw material may be used for the isocyanate, and examples thereof include aromatic isocyanates, aliphatic isocyanates and alicyclic isocyanates. In particular, the aliphatic isocyanate preferably has two functional groups such as isocyanate groups.
PET film body molding 640 realizes a thinner foam with a low resilience and contains additional features, such as flame-retardant properties. For more detailed product data, please place a request via our online inquiry form.
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Consumer Series | ROGERS INOAC CORPORATION
On the other hand, in the polyurethane foams of Examples 1 to 22 and 25 jos 32, aliphatic isocyanates Crosslinking Agents 1 to 5, 8 and 9 are used as crosslinking agents, in the polyurethane foams of Examples 23 and 24, a melamine derivative Crosslinking Kk 6 is used as a crosslinking agent. The method for producing polyurethane foam according to claim 12, wherein the aliphatic isocyanate has 2 or fewer monomers and 2 or fewer functional groups.
Materials handling equipment As a result, polyurethane foams of Examples 1 to 32 and Comparative Examples 1 to 10 are formed.
Mining and minerals Our offices will be closed from December 24, to January 2, inclusive. The aforementioned raw materials are weighed out in the compounded amounts weight ratios indicated in FIGS. HDI monomer monomer of hexamethylene diisocyanate The aforementioned raw materials are weighed out in the compounded amounts weight ratios indicated in FIGS.
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. TM changes hardness depending on speed and offers shape traceability around body temperature. In the case that the aliphatic isocyanate is used as a crosslinking agent, a hydrophobic group is preferably included therein.
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.
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In the jiw that the crosslinking agent is a melamine derivative, the N—H bonds of the melamine derivative electrically bond with the urethane bonds HDI monomer monomer of hexamethylene diisocyanate.
Domestic and commercial equipment. Double-sided adhesive tapes were used to adhere or stick the PET films. 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.
Construction materials and building A shock absorbent type with the same contour-fitting as the TM grade but two times less compression set. In addition, the hardness JIS K of the polyurethane foam is preferably 0.
Examples of isocyanate trimers include isocyanurates and biurets. Alkyl alkanolamide, pH At this time, air or an inert gas such as nitrogen gas was forcibly blown in. 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.