Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Perlon

Perlon Perlon L Permabond Permachor method Permaflex... [Pg.738]

This particular polymer is a fibre-forming material (Perlon U). Although in many respects this reaction resembles the formation of polyesters and polyamides it is not a condensation reaction but involves a transfer of hydrogen atoms and thus may be considered as an example of rearrangement polymerisation. [Pg.778]

Compared with nylon 66 fibres, the polyurethane fibres (known as Perlon U) have a tensile strength at the higher end of the range quoted for nylon 66, they are less prone to discolouration in air, are more resistant to acid conditions and they have a lower moisture absorption. On the debit side they are less easy to dye, are hard, wiry and harsh to handle and have too low a softening point for many applications. They are currently of little importance but have found some use in bristles, filler cloths, sieves and a few other miscellaneous applications. [Pg.783]

Perkins, William H., 19 423 Perlite, asbestos substitute, 3 314t Perlman, David, 11 50 Perlon U, 25 455... [Pg.683]

Polyurethane fibres (Perlon U) were prepared by reacting hexamethylene disocyanate with 1,4 butanediol in 1942. Because they were difficult to dye and had harsh feel so went out of the market. But these resins are used for small mechanical components like gears and bearings because of dimensional stability and retention of electrical resistance in humid conditions. [Pg.203]

Glass FIannel Perlon II +20 Casein PAMA (unplasticized)... [Pg.65]

The nonaromatic PU shown in structure 4.68 is sold under the trade name Perlon U. As in the case with nylons and polyesters, higher melting products are formed when the number of carbon atoms is even since this allows a closer packing of the chains. [Pg.112]

Nylon 6 (polycaprolactam, Perlon) is the most widely used monadic nylon. It has a lower melting point (225 C) than nylon 5 (270 0. which is not available commercially. As shown in Table 14.2 the coefficient of linear expansion of nylon 6 is the same as that of nylon 66. However, its heat deflection temperature (80 ) is slightly higher than that of nylon 66 (75 C). Nylon 7 (polyenantholactam) has a slightly higher Tm (227 0. a slightly greater flexibility, and a lower water absorption than nylon 6. [Pg.170]

Caprolactam was first successfully polymerized to PerLon in 1938 by I. G. Farben and the associated technology was acquired as a part of postwar reparations by the Western Allies and the former USSR (1). By 1965 other countries, eg, Italy and Japan, had developed their own caprolactam processes, each involving nitrosation of an aliphatic ring. [Pg.426]

Perlon Fast Violet BT (IG) (8) Irgalan Brown Violet DL (Geigy)... [Pg.37]

The ingredients for the preparation of polyurethane foam are available from many companies, including the Perlon Corp., Lyons, IL, and American Latex Products, Hawthorne, CA. [Pg.139]

Climbing ropes are made of Perlon, one of the many varieties of nylon. [Pg.1018]

The purpose of early work on the development of polyurethanes was to find an alternative to nylon. The early developments by Otto Bayer led to the first patents and to the development of fibers and foams. The most common fibers made from polyurethane are Perlon and Spandex. [Pg.267]

NH3 or RNH2 or R2NH Amide formation from carboxylic acid derivatives (mild) or from carboxylic acids (A technical synthesis of nylon-6,6) transamidation [capro-lactame —> nylon-6 (perlon)] Peptide synthesis (Section 6.4.3)... [Pg.283]

Nylon 6. Nylon 6 is made from caprolactam and is known as Perlon in Germany, where it was originally developed by Dr. Paul Schlack.8 Its production has reached a very large volume in the United States in recent years. [Pg.455]

Nylon 6, trade name Perlon, is used to make rope and tire cord. [Pg.1158]


See other pages where Perlon is mentioned: [Pg.17]    [Pg.819]    [Pg.1310]    [Pg.199]    [Pg.406]    [Pg.9]    [Pg.579]    [Pg.677]    [Pg.1433]    [Pg.84]    [Pg.383]    [Pg.384]    [Pg.387]    [Pg.390]    [Pg.48]    [Pg.49]    [Pg.51]    [Pg.341]    [Pg.55]    [Pg.944]    [Pg.1233]    [Pg.1233]    [Pg.265]    [Pg.142]    [Pg.10]    [Pg.819]    [Pg.192]   
See also in sourсe #XX -- [ Pg.778 , Pg.783 ]

See also in sourсe #XX -- [ Pg.8 ]

See also in sourсe #XX -- [ Pg.1433 ]

See also in sourсe #XX -- [ Pg.244 ]

See also in sourсe #XX -- [ Pg.1233 ]

See also in sourсe #XX -- [ Pg.778 , Pg.783 ]

See also in sourсe #XX -- [ Pg.138 , Pg.152 ]

See also in sourсe #XX -- [ Pg.8 ]

See also in sourсe #XX -- [ Pg.241 ]

See also in sourсe #XX -- [ Pg.19 ]

See also in sourсe #XX -- [ Pg.985 ]

See also in sourсe #XX -- [ Pg.247 ]

See also in sourсe #XX -- [ Pg.778 , Pg.783 ]




SEARCH



Perlon U

Perlon, structure

The Perlon Series

© 2024 chempedia.info