Vol. 18, No. 6, Page 14 ANTIOXIDANT GUIDE
An antioxidant guide for plastics and rubber is now available from Witco Corp. for the protection of hydrocarbon polymers such as polyolefins and elastomers and oxygen-containing engineering plastics. Applications of twelve systems and by process bulletins discuss each phenolic-phosphite and
Mark antioxidants are summarized by polymer in a reference chart. Individual technical of the products, which include phosphite, phenolic-thioester complexes.
SILICA BEADSRANGE
Outline specifications for three grades of amorphous silica beads being developed by Monsanto are contained in a technical data The grades cover the 30, 100 sheet available from the company. and 200 micron ranges under the trade name Syton microspheres. The beads are chemically inert and are currently being evaluated for the structural reinforcement of thermoset and thermoplastic materials, giving improvement in modulus, hardness, compression They are resistance, isotropy, flow and dimensional stability. also being tested in applications where superior chemical, thermal, flame and electrical resistance or insulation are sought.
TRADE NAHE FOR CARBON FIBRE YARNS
Heltra, the yarn manufacturing company acquired by Courtaulds Advanced Materials this year (1988), has announced the use of Grafitex as the trade name for its carbon fibre yarns.
BOOKS/PUBLICATIONS ADDITIVES FOR PLASTICS DATA BANK
This "desk-top" publication, by D.A.T.A. Inc. was developed for the purpose of presenting information about commercially available additive compounds, and is based upon data from manufacturers/ suppliers. The data is presented in a very concise tabulated form, and the publication also contains useful information on related subjects, such as ASTM tests; abbreviations; conversion calculations; etc. Of particular value is the Appendix on "Properties of Generic Materials" which lists about 20 key processing and engineering properties relating to "generic" materials in filled or blended form as well as in the unmodified form. Although this publication is limited to information on American and Canadian compounds, it is, nevertheless, of general value and interest worldwide. Published by: D.A.T.A. Inc., 9889 Willow Creek Road, P.O. Box Z6875,San Diego, CA 92126
and also available from: Cont./......
da1988Elsevier Science PublishersB.V., Amsterdam./88/$0.00 + 2.20 No part of this publication may be reproduced, stored in a retrieval system, or transmitted by any form or hy 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.)