Fiber synthetic fiber

Manual code system, in searching patent literature, 18 223-225 Manual of Classification, 18 209 Manuals of Policies and Procedures (MAPPs), 13 688 Manufactured carbon, 4 735 Manufactured fibers, 11 165, 174-175 24 613-614, 616-618. See also Regenerated fibers Synthetic fibers olefin, 11 231-242 regenerated cellulose, 11 247 Manufactured graphite, 4 735 Manufactured products, nanotechnology and, 17 44-45 Manufactured water, 26 96 Manufacturing... 

Fiber blends combine the advantageous properties of two or more fibers into one fabric. They are available as blends of naiural fibers, synthetic fibers, or naiural fibers blended with synthetic, The differences in dyeahilily between the many fibers on the market open a wide field of multicolored yarns and fabrics to the stylist. 

SYNONYMS 4T04, 7N05, 7RF10, chrysotile, amosite, crocidolite, asbestos fibers, synthetic fibers, AT 7-1, calidrea-hop, mountain-cork, mountain-leather, mountain wood, P-5-50, white asbestos... 

Vinylon Poly(vinyl alcohol) (fiber) Synthetic Fiber Mfrs. Group, Japan... 

Other organic fiber-based carbon fiber (natural fibers, recycled fibers, synthetic fibers such as condensed polycyclic aromatic fibers). 

Cellulose Hemicellulose Maize stalk fiber Synthetic fibers Thermoplastic resins... 

Cost savings Reinforcement Hardness Thermai insuiation Chemical resistance Wood flour, saw dust, cotton flock Glass fibers, cellulosic fibers, synthetic fibers, asbestos fibers Metallic powders, mineral powders, silica, graphite Asbestos, ceramic oxides, silica Glass fibers, synthetic fibers, metallic oxides, graphites... 

Precision and Random Cut Flock Acrylic Fiber Synthetic fiber spun frcMn polymers consisting of at least 85% by weight acrylonitrile luiits. 

Chemical resistance is improved by glass fibers, synthetic fibers, metal oxides, and graphite. The effects of different fillers on physical and mechanical properties of products are briefly given in Table 1[15]. 

Key words polymerization, fiber spinnabUity, rheology, natural fibers, synthetic fibers, high performance fibers. 

The diazonium salt of 2-aminothiazole couples with 2-dimethylamino-4-phenylthiazole, giving the corresponding azo dye (194) (Scheme 123) used for dyeing synthetic fibers (404). 

The use of 2-aminothiazole derivatives as dyeing compounds is direct related to the development of synthetic fibers. Some typical examples are given in Table VI-14. The importance of these dyes lies in their performance on acetate fibers. They have excellent fastness to gas fumes, produce a bright blue shade, and have a high tinctorial strength. Their only disadvantage is their relatively low light fastness, which does limit their application. 

Pressure-sensitive copying paper containing 431 was recently patented (1650). 2-Thiazolyldiazonium chloride enters in the composition of synthetic fibers with ion-exchange properties (1551). 

The synthetic fiber industry as we know it began m 1928 when E I Du Pont de Nemours Company lured Professor Wallace H Carothers from Harvard University to direct their research department In a few years Carothers and his associates had pro duced nylon the first synthetic fiber and neoprene a rubber substitute Synthetic fibers and elastomers are both products of important contemporary industries with an economic influence far beyond anything imaginable m the middle 1920s... 

Synthetases Synthetic fatly acids Synthetic fiber blends Synthetic fibers... 

Control of relative humidity is needed to maintain the strength, pHabiUty, and moisture regain of hygroscopic materials such as textiles and paper. Humidity control may also be required in some appHcations to reduce the effect of static electricity. Temperature and/or relative humidity may also have to be controlled in order to regulate the rate of chemical or biochemical reactions, such as the drying of varnishes, the appHcation of sugar coatings, the preparation of synthetic fibers and other chemical compounds, or the fermentation of yeast. 

Chemical Manufacturing. Chemical manufacturing accounts for over 50% of all U.S. caustic soda demand. It is used primarily for pH control, neutralization, off-gas scmbbing, and as a catalyst. About 50% of the total demand in this category, or approximately 25% of overall U.S. consumption, is used in the manufacture of organic intermediates, polymers, and end products. The majority of caustic soda required here is for the production of propylene oxide, polycarbonate resin, epoxies, synthetic fibers, and surface-active agents (6). 

Essentially all the ammonium sulfate fertilizer used in the United States is by-product material. By-product from the acid scmbbing of coke oven gas is one source. A larger source is as by-product ammonium sulfate solution from the production of caprolactam (qv) and acrylonitrile, (qv) which are synthetic fiber intermediates. A third but lesser source is from the ammoniation of spent sulfuric acid from other processes. In the recovery of by-product crystals from each of these sources, the crystallization usually is carried out in steam-heated sa turator—crystallizers. Characteristically, crystallizer product is of a particle size about 90% finer than 16 mesh (ca 1 mm dia), which is too small for satisfactory dry blending with granular fertilizer materials. Crystals of this size are suitable, however, as a feed material to mixed fertilizer granulation plants, and this is the main fertilizer outlet for by-product ammonium sulfate. 

Table 2. Worldwide Synthetic Fiber Production by Fiber, 10 t...

In general, the geometric properties of the natural fibers are highly variable from fiber to fiber, both within a given lot and among lots of the same fiber type. In the synthetic fibers, the geometric properties are extremely uniform in view of the production control possible in a chemical plant but not in an agricultural product. 

The physical properties of these fibers are compared with those of natural fibers and other synthetic fibers in Table 1. Additional property data may be found in compilations of the properties of natural and synthetic fibers (1). Apart from the polyolefins, acryhcs and nylon fibers are the lightest weight fibers on the market. Modacryhcs are considerably more dense than acryhcs, with a density about the same as wool and polyester. 

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