摘要:
A flame barrier made of nonwoven fabric for use as a component of a planar multilayer structure, especially a vehicle or aircraft passenger seat. The flame barrier contains staple fibers made of phenolic resin, para-aramid, or melamine resin, alone or mixed with 20 to 60 wt % preoxidized polyacrylonitrile staple fibers. The nonwoven fabric barrier also contains 15 to 30 wt % vermiculite, which is distributed through the entire volume of the nonwoven fabric. The flame barrier possesses a mass per unit area of 100 g/m.sup.2 to 210 g/m.sup.2. The method of manufacturing the nonwoven fabric flame barrier makes use of water jet needling.
摘要翻译:由非织造织物制成的防火屏障,用作平面多层结构的部件,特别是车辆或飞机乘客座椅。 阻燃层含有由酚醛树脂,对位芳族聚酰胺或三聚氰胺树脂制成的短纤维,单独或与20〜60重量%的预氧化聚丙烯腈短纤维混合。 无纺布阻挡层还含有15-30重量%的蛭石,其分布在整个无纺布体积中。 火焰阻挡层每单位面积的质量为100g / m 2至210g / m 2。 无纺布阻燃剂的制造方法利用水喷针刺。
摘要:
A cable wrap which swells upon contact with water is made by coating one side of a nonwoven fabric support with a polyvinyl alcohol binding agent and then with a superabsorber powder, drying the coated fabric between contact surfaces, printing a polyacrylate binding agent plaste onto the superabsorber surface, and then drying the coated fabric. Alternatively, the cable wrap can be made by printing a polyacrylate binding agent paste onto a nonwoven fabric support, applying a polyvinyl alcohol binding agent onto the polyacrylate binding agent paste, sprinkling superabsorber powder onto the polyvinyl alcohol binding agent, and drying the coated fabric between contact surfaces.
摘要:
Disclosed is a flame barrier made of a nonwoven fabric of partially graphitized polyacrylonitrile fibers having a weight per unit area of 40 to 100 g/m.sup.2 and a maximum thhickness of 1.8 mm. The nonwoven fabric is bonded with highly energetic water jets. The flame barrier can be used as a component of a planar multi-layer structure.
摘要:
A method for the decorative coating of sheet-like materials, particularly laminated plastics and wood-derived panels is disclosed to achieve a marbled decor effect by pressing a support sheet, impregnated with a curable aminoplast resin and coateed with a thermoplastic or duroplastic synthetic resin, on the substrate to be coated at the melting or curing temperatures of the resins, in which(a) a support sheet is used which has two superimposed layers of a transparent, thermoplastic or duroplastic synthetic resin, which flows well under the pressing conditions, the layer facing the support sheet containing a flake or scale-like pigment in an amount of 2 to 40% by weight of the synthetic resin and the outer layer of synthetic resin being devoid of such pigments and(b) the pressing is carried out in a compression mold or tool, which has no surface profiling.The invention furthermore is directed to the synthetic resin-containing support sheets used in the inventive method.The coated materials have a marbled surface and are suitable particularly for the manufacture of doors, furniture, table tops, facade elements, exhibition booths or for the decoration of rooms, such s foyers, waiting rooms and switch rooms.
摘要:
A jacket for a floppy disk consists essentially of a porous nonwoven material both for a writable cover function and a soft, fibrous liner function.
摘要:
Polyolefins having a broad molecular weight distribution are obtained in a very high yield even using a catalyst based on a reaction product of a magnesium alcoholate with titanium tetrachloride, if the hydrocarbon-insoluble product of the reaction of the magnesium alcoholate with titanium tetrachloride is heated to a fairly high temperature with a chloroalkoxytitanate, in order to split off alkyl chlorides.
摘要:
Polyolefins having a broad molecular weight distribution are obtained in a very high yield even using, as the catalyst, a product from the reaction of a magnesium alcoholate with titanium tetrachloride, if the reaction between the magnesium alcoholate and the titanium tetrachloride is carried out at a relatively low temperature and the reaction mixture is then heated to a fairly high temperature in order to split off alkyl chlorides.
摘要:
Cleanser composition containing at least one surfactant, at least one nonionic surfactant with HLB value of 5-20, at least one amphoterically dissociating agent capable of breaking bridge bonds in cross-linked proteins, and at least one water-miscible or water-soluble aprotic lipophilic solvent.
摘要:
A thermostable substrate for flexible circuit boards having excellent flame-resistance, handling, and storage qualities may be produced by treating a substrate of a nonwoven fabric or paper with a flame-resistant, halogen-free polymeric composition. The polymeric composition comprises an aqueous mixture of a copolymerizate of acrylic acid esters and styrene, and an aminoplastic or phenoplastic precondensate to which a mixture of fine-particle red phosphorus and fine-particle ammonium polyphosphate is also added.