Vol. 19, No. 10, Page 12

US 4,832,870

US 4,833,211

US 4,835,202 STABILIZERS

CONDUCTIVE COMPOSITE MATERIAL

U.S. Dept. of Energy Priority Date: 20 June 1988

Comprises a low density open-celled carbonized microcellular car- bon foam filled with a non-conductive polymer or resin.

UV STABILIZERS Eniricherche SpA Priority Date: 7 March 1986

Process for producing solid UV stabilizing compounds which include a hydroxybenzophenone moiety.

Ciba-Geigy Corp. Priority Date: 20 November 1987

(Hydroxyphenyl) phosphine compounds.

PRODUCT INFORMATION

FIRE REl!ARDANT NYLONS AND ABS

Occidental Chemical in the U.S. has developed several low-cost nylons and ABS compounds which contain its Dechlorane Plus f'ire retardant. This retardant is used synergistically in these mat- erials. In nylon, the additive is said to provide the option of using synergists other than antimony oxide, with the poten- tial benefit of reduced additive loading levels and improved physical properties. In ABS the additive provides excellent UV stability, an increase in heat distortion temperature, and no blooming.

MARBLE-EFFECT The Silmar division of Engineered Materials Co., Box 5006, Haw- POLYESTER COMPOUNDS thorne, CA90250 has introduced a new grade of its polyester-based

cultured marble which is said to be highly stain-resistant. It is expected to find applications beyond the traditional uses f'or this compound, which are in sanitary-ware.

ARAMID FIBRES Hoechst is to build a pilot plant for the production of' aramid IN EUROPE fibres at Kelheim. Sample quantities will be available in early

1991. The fibres are spun directly out of a polycondensation solution using just one solvent, which Hoechst claims produces fibres having better chemical resistance. It also allows the properties to be modified more easily to suit particular end- use requirements.

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