Electrically insulating non-woven fabric, a prepreg and a laminate

• Main Authors: UENO HIROYOSHI, KURUMATANI SHIGERU, TOYOSHIMA SETSUO, HIRAOKA HIROKAZU, NODA MASAYUKI, KATO YOSHIHISA, TERAO TOMOYUKI
• Format: Patent
• Language: English
• Published: 20.05.2003
• Edition: 7
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; BASIC ELECTRIC ELEMENTS; BRAIDING; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; CHEMISTRY; COMPOSITIONS BASED THEREON; COTTON-WOOL; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR; GENERAL PROCESSES OF COMPOUNDING; IMPREGNATING OR COATING OF PAPER; KNITTING; LACE-MAKING; LAUNDERING; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS; METALLURGY; NON-WOVEN FABRICS; ORGANIC MACROMOLECULAR COMPOUNDS; PAPER NOT OTHERWISE PROVIDED FOR; PAPER-MAKING; PERFORMING OPERATIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; PRINTED CIRCUITS; PRODUCTION OF CELLULOSE; PULP COMPOSITIONS; SEMICONDUCTOR DEVICES; TEXTILES; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; TREATMENT OF TEXTILES OR THE LIKE; TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS,FABRICS, FEATHERS, OR FIBROUS GOODS MADE FROM SUCH MATERIALS; TRIMMINGS; WADDING; WORKING-UP

A non-woven fabric comprising a principal component of para-aramid fiber chops bonded with each other by a binder, the para-aramid fiber chops having a mixture of (a) poly-p-phenylene-3,4'-diphenylether-terephthalamide fibers and (b) poly-p-phenylene-terephthalamide fibers and having a blend ratio by weight of (a)/(b)=10/90~90/10 and preferably (a)/(b)=30/70~70/30.