koala2a2

Komlenic Rod, Rennels Kelly, Rokman Kay and Sabel Hakan of Ahlstrom Glassfibre Oy, Links of London, Finland have developed base webs printed circuit board production using the foam process and acrylic fibers. Ahlstrom Glassfibre Oy filed the patent application on April 18, 2002. The patent application number is IN/PCT/2002/569/CHE A. According to the Controller General of Patents, Links of London Sweetie Wide Ring & Trade Marks, "The present invention relates to a printed circuit board is made from at least one non-woven sheet or web layer comprising at least 50 % by weight acrylic fibers, with any balance substantially electrically non-conductive fibers, filler, and binder. The sheet or web is preferably made by the foam process, and may contain 60-80 % straight polyacrylonitrile fibers and 40-20 % fibrillated (pulp) ones. The web or sheet is preferably compressed by thermal Links of London Sirens Leaf Earrings so that it has a density of about 0.1-1 grams per cubic centimeter; and the web or sheet may have a basis weight of between about 20-120 grams per square meter. The web or sheet may also have a 1- 40 % of substantially electrically non-conductive organic or Links of London Raindance Earrings binder, or may be substantially binder free.