August 1993 Additives for Polvmers

synergistic action of the primary and secondary antioxidants (aromatic phosphite, thioether). The optimum ratio of primary antioxidant:phosphite for polypropylene is 1:2 by mass. (4 refs). Int. Polymer Science & Technology, 1993, 20, (3), T3 7-39. (Translated porn: Plasticheskie Massy, 1992, (6), 23).

Resins and Pigments ‘93

This will be held 16-17 November 1993 at the Brussels Exhibition Centre, Brussels, Belgium. Contact: Mike Tarrant, Exhibition Sales Director, Resins & Pigments ‘93, Queensway House, 2 Queensway, Redhill, Surrey, RHI IQS, UK. Tel: +44-737-768611.

STANDARDS CONFERENCES

British Standard relating to compounding ingredients BS 3502: Part 3 SCHEDULE FOR SYMBOLS FOR COMPOUNDING INGREDIENTS This is designed to provide unambiguous symbols for compounding ingredients used in plastics and rubber. It includes rules for accelerators and curing agents, activators, process aids, antioxidants and antiozonants, blowing agents, plasticizers, extenders and reinforcing fillers, amongst others. It supersedes BS 2589.

British Standard on burning behaviour of plastics BS 2783: Part 1

DETERMINATION OF BURNING BEHAVIOUR IN CONTACT WITH A SMALL FLAME Contact: BSI Sales, Linfard Wood, Milton Keynes, MK14 6LE, UK. Tel:+44-908- 220022. Far: + 44-908-320856.

DIARY

Degradation and stabilization of polymeric materials

To be held 25-29 October 1993 at the University of Turin, Italy. Contact: Dr G. Cumino, Department oj’ /not-g&c, Physical und Muteriuls Chemistry, Universitu di Torino, Viu P. Giuriu 7, 1012.5 Torino, Ituly.

Fire retardant systems

The impact of environmental issues and pending regulations will be discussed at the Fire Retardant Systems conference to be held at the J. W. Marriott Hotel in Atlanta, Georgia, USA, 7-8 December 1993. The fire retardant industry today stands on the threshold of major change, as it moves in the direction of advanced fire retardant materials to meet demands from the environmental constituency and safety-conscious consumers. Fire retardants can be found in various consumer and industrial products. Many of these products are required by law to be flame retardant. About 70% of all fire retardants are used in plastics, followed by paper products, textiles, and paints. The meeting will review recent progress and innovations in the development and use of advanced fire retardant systems. A number of end users from the foam, moulded resin, wire and cable, textile, paper decorative laminate, and transportation industries will discuss their needs and what has worked to date. While no regulations prohibit the manufacturer or sale of halogenated fire retardants anywhere, customers using fire retardants in wire and cable, moulded plastics, transportation, office furnishings, etc. increasingly request the development of non-halogen products so options will be available in their choice of fire retardant systems. Contuct. Jennifer Winch, Intertech Conferences, 41 I US Route one, Portlund, ME 0410.5, USA. Tel: + l-207-781-9800. Fax.. -?-I-207-781-2/50.

0 1993 Elsevier Science Publishers Ltd