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.).