Abstract: A conductive polyester-based alloy sheet having three layers laminated together by co-extrusion, which comprises one substrate layer and two surface layers, wherein the surface layers are conductive and comprise polyester, acrylonitrile-butadiene-styrene (abbreviated as ABS) and/or polystyrene (abbreviated as PS), a compatibilizer, and a toughening agent, wherein the surface layers have a surface conductivity of not more than 10.sup.8 ohms. The melt flow index of the material for the conductive layers during the extrusion step is not less than 5.0 g/min (loading, 10 Kg; temperature, 250.degree. C.). The substrate layer is made from acrylonitrile-butadiene-styrene and/or polystyrene.

Abstract: The present invention relates to a process for wet washing wool fabric and woolen articles. The process permits wet washing of articles such as aircraft seat covers while substantially eliminating shrinkage and preserving the fire retardant characteristics of the seat covers. The process includes washing the articles in an aqueous solution using a bi-directional intermittent wash cycle. The wash cycle includes agitating in a first direction for about two minutes, pausing agitation for about four minutes, agitating in a second opposite direction for about two minutes, and pausing agitation for four minutes. This wash cycle may be repeated up to three times. The articles are then tumbled dried to a moisture level of about 20 percent. The drying process is completed by static drying the articles without mechanical action until all remaining moisture in the articles is removed. The static drying step is conducted at a temperature between about 280 degrees F and about 300 degrees F.

Abstract: A conductive polyester sheet having three layers, comprising one substrate layer and two surface layers, laminated together by co-extrusion is provided. All the three layers are made from polyester and/or copolyester, and the surface layers further contain carbon black and thus are useful as conductive layers. The sheet has a surface conductivity of not more than 10.sup.8 ohms and the flow index of the material for the conductive layers during the extrusion step is not lower than 60 g/min (loading, 2160 g; temperature, 275.degree. C.).

Abstract: A black masterbatch for polyester polymer consisting of:(a) 25-99.7% of polyester polymer by weight;(b) 0.1-20% of dispersive second polyester by weight and/or 0.1-15% EVA by weight; and(c) 0.1-40% of carbon black by weight;whereby the black masterbatch can be easily manufactured by a simple process without polluting the environment.

Abstract: A fabric having a superior moisture permeability and water absorption. The superior features of the fabric in accordance with the present invention are provided by using a chitin group substance with a synthetic resin.The fabric in accordance with the present invention can be obtained by immersing a base fabric in a synthetic resin including the chitin group substance or by coating at least a synthetic resin including the chitin group substance on the base fabric. The fabric manufactured by the latter method has a moisture condensation prevention property.

Abstract: The heat retaining clothing of the invention comprising at least one inflatable envelope which is made of a polymer film. The film has a thickness of 50 to 150 .mu.m and an elastic modulus of extension of at least 90%.

Abstract: A heat-retaining moisture-transmissible water-resistant fabric which comprises (i) a fibrous substrate, (ii) a discontinuous polymer layer or a polymer layer having a multiplicity of interconnecting fine pores (layer A), formed on at least one surface of the substrate, and (iii) a polymer layer (layer B) formed on layer A, layer B contains 15 to 70 wt. %, based on the polymer of the layer B, of heat ray-reflecting fine metal pieces and has a multiplicity of interconnecting fine pores communicating from the surface to the interior and also has on the surface thereof fine pores, most of which have a size not larger than 5 .mu.m. The fabric may comprise, in lieu of layer B, (iv) a microporous polymer film layer (layer C), formed on layer A and having a multiplicity of interconnecting fine pores communicating in all the direction in the interior of layer C, most of which have a size of at least 1 .mu.m, and (v) a polymer layer (layer D) containing 10-70 wt.

Abstract: A heat-retaining moisture-transmissible water-resistant fabric which comprises (i) a fibrous substrate, (ii) a polymer layer having a multiplicity of interconnecting fine pores (layer A), formed on at least one surface of the substrate, and (iii) a polymer layer (layer B) formed on layer A, layer B contains 15 to 70 wt. %, based on the polymer of the layer B, of heat ray-reflecting fine metal pieces and has a multiplicity of interconnecting fine pores communicating from the surface to the interior and also has on the surface thereof fine pores, most of which have a size not larger than 5 .mu.m. The fabric may comprise, in lieu of layer B, (iv) a microporous polymer film layer (layer C), formed on layer A and having a multiplicity of interconnecting fine pores communicating in all the direction in the interior of layer C, most of which have a size of at least 1 .mu.m, and (v) a polymer layer (layer D) containing 10-70 wt.