March 1998
Additives for Polymers
However, when more than one flameretarding additive is used, there can be very interesting synergistic effects (which are not yet fully understood). The potential of a multi-additive approach is illustrated by a recent patent filed by the Japanese company Teijin Ltd:
April 6-8, Teddington, UK Humidity and Moisture - International Symposium: National Physical Laboratory, Teddington, TW 11 OLW, UK; tel: +44-l 8 1 943 6710; fax: +44-181 943 6306
Title: Polyamide resin composition of good obtained by mixing resistance f Ire polyamide resin with silicate powder, halogenated compound, antimony trioxide and PTFE.
April 22-24, Paris, France JournCes d’Etudes Composites - JEC ‘98 JEC, 65 rue de Prony, F-75854 Paris Cedex 17, France; tel: +33-l 4401 1643; fax: +33-l 4401 1665
Patent No. J07126523; priority date 2 November 1995, publication date 16 May 1995
June 3-6, Naples, Italy ECCM-8: European Conference on Composite Materials: ECCM-8, DIMPUniversity of Naples, Piazzale V. Tecchio, 80125 Naples, Italy; tel: +39-81 7682373; Fax: +39-81 627826
Description: A polyamide resin composition is obtained by mixing polyamide resin with 5-40 wt(% of silicate powder as an inorganic filler, lo-40 wt,% of a halogenated compound, 0.5-2 wt.% of Sb trioxide and 0.1-l wt.% of polytetrafluoroethylene resin obtained by emulsion polymerization. The polyamide component is an aliphatic polyamide (such as nylon 6 or nylon 66) or an aliphatic and alicyclic polyamide (such as polyhexamethylene terephthalamide or polyhexamethylene isophthalamide). The filler (preferably calcined kaolin or talc), should if possible be surface-treated with a coupling agent, such as a silane compound. The halogenated component should be a brominated polystyrene of 10 000-l 000 000 average molecular weight. The resulting flame-retarded compound can be used in automobile or electrical/electronic components. It offers a high resistance to tire and can also be electroplated. Contact: Teijin Ltd, 1-6-7, MinamiHonmachi, Chuo-ku, Osaka 541, Japan; tei: +81-6 268 2132; fax: +81-6 268 3210 (Extended summaries or full copies of the patents described here can be obtainedfrom Derwent Information Ltd, Derwent House, 24 Great Queen Street, London, WC2B 5DF, UK; tel: +44-I 71 355 2800; fmc: +44-l 71 344 2900)
01998 Elsevier Science
EVENTS - 1998
June 9- 13, Stockholm, Sweden 5th International Workshop on Biodegradable Plastics and Polymers: Prof. A-C Albertsson, Polymer Technology, Royal Institute of Technology, S-l 00 44 Stockholm, Sweden; fax: +46-810 0775 rune 15- 17, Beijing, China Functional fillers for plastics 98: The Asian opportunity: conference: lntertech Conferences, 411 US Route One, Portland MA 04105, USA; tel: +l-207 781 9800; fax: +l-207 781 2150 luly 13-17, Gold Coast, Australia 37th International Symposium on 4lacromolecules: APS 22 Secretariat, LJniversity of Auckland, PO Box 92019, 4uckland, New Zealand September 9- 11, 1998, Brighton, UK Polymer ‘98, conference: The Institute of ?hysics, 76 Portland Place, London WIN 4AA, UK; tel: +44-l 71 470 4800; fax: t44- 17 1 470 4900 October 22-29, 1998, Dusseldorf Germany K’98 - 14th International Exhibition NOWEA, Postfach 10 10 06, D-4000 1 Dusseldorf Germany; tel: +49-211 456C 900; fax: +49-211 4560 86100