vol. 18, No. 8, Page 9 APPLICATIONS SHORT CERAMIC FIBRES GB 2,1g8,734A us 4,732,921 Carborundum Resistant Materials Ltd., in the U.K. produce short ceramic fibres from bulk discontinuous alumino-silicate fibres and market them under the name of Fiberfrax CEF. At one time, ceramic fibres were considered too costly for volume usage, but the fibres produced by this company are much less costly than the current generation of ceramics (principally boron, silicon carbide and alumina fibres), and are said to be cost-competitive with chopped and milled standard E-glass fibres, but with enhanced physical properties. Applications for the Fiberfrax CEF series could include polymer reinforcement, paints and coatings. Current applications include fire retardant applications, use in PTFE to improve wear resistance, and in two-part epoxy adhesives where they replace asbestos. The series comprises a range of fibres with distributions of mean fibre lengths from 14 microns to er than 2 mm. great- Their use in thermoplastics, including nylon 66, ABS and carbonate, is being evaluated and results so far have been PolY- prom- ising. They can be used to reinforce thermosets (phenolics, epox- ies and polyesters) with consequent improvements in flexural and compressive strengths and overall dimensional stability. In paints and coatings, the ceramic fibres enhance corrosion resistance and modify the viscosity characteristics. PATENTS EM1 SHIELDING MATERIAL The Dow Chemical Co. Priority Date: 15 November 1985 Sheet material having conductive fibres and a particulate, conductive or semi-conductive filler. FIRE RETARDANT PBT Hoechst Celanese Corp. Priority Date: 5 December 1986 A halogenated epoxy resin as fire retardant. Cont./...... ~TIVIS COR 01988 Eiaevkr Science F’ubbhers Ltd.. En&md./ai3/$0.00 + 2.20 POLYMERS No part of this publication may be reproduced. stored in a retrieval system, or transmitted by any form or by any means, electronic. mechanical, photocopying, recording or otherwise, without the prior permission of the publishers. (Readers in the U.S.A.-please see special regulations listed on back cover.]

GB 2,198,734A EMI Shielding Material

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Page 1: GB 2,198,734A EMI Shielding Material

vol. 18, No. 8, Page 9

APPLICATIONS

SHORT CERAMIC FIBRES

GB 2,1g8,734A

us 4,732,921

Carborundum Resistant Materials Ltd., in the U.K. produce short ceramic fibres from bulk discontinuous alumino-silicate fibres and market them under the name of Fiberfrax CEF. At one time, ceramic fibres were considered too costly for volume usage, but the fibres produced by this company are much less costly than the current generation of ceramics (principally boron, silicon carbide and alumina fibres), and are said to be cost-competitive with chopped and milled standard E-glass fibres, but with enhanced physical properties. Applications for the Fiberfrax CEF series could include polymer reinforcement, paints and coatings. Current applications include fire retardant applications, use in PTFE to improve wear resistance, and in two-part epoxy adhesives where they replace asbestos. The series comprises a range of fibres with distributions of mean fibre lengths from 14 microns to er than 2 mm.

great-

Their use in thermoplastics, including nylon 66, ABS and carbonate, is being evaluated and results so far have been

PolY- prom-

ising. They can be used to reinforce thermosets (phenolics, epox- ies and polyesters) with consequent improvements in flexural and compressive strengths and overall dimensional stability. In paints and coatings, the ceramic fibres enhance corrosion resistance and modify the viscosity characteristics.

PATENTS

EM1 SHIELDING MATERIAL The Dow Chemical Co. Priority Date: 15 November 1985

Sheet material having conductive fibres and a particulate, conductive or semi-conductive filler.

FIRE RETARDANT PBT Hoechst Celanese Corp. Priority Date: 5 December 1986

A halogenated epoxy resin as fire retardant.

Cont./......

~TIVIS COR 0 1988 Eiaevkr Science F’ubbhers Ltd.. En&md./ai3/$0.00 + 2.20

POLYMERS No part of this publication may be reproduced. stored in a retrieval system, or transmitted by any form or by any

means, electronic. mechanical, photocopying, recording or otherwise, without the prior permission of the publishers.

(Readers in the U.S.A.-please see special regulations listed on back cover.]