Impregnation technique for Aramid and carbon fibre reinforced thermoplastics

18, No. 5, Page 4

Vol.

electron-withdrawing inductive effect of the phosphinyl groups. Determination of the limiting oxygen index (LOI) value showed that the phosphorus-containing copolyurethanes exhibited a higher fire resistance than that of common polyurethanes. J. Poly. Sci., Part A, Poly. Chem., 1988, 3,

885-900

MIXED METAL OXIDE COLOURANTS

Mixed metal oxide colourants have low toxicity combined with chemical stability and excellent lightfastness. They are therefore becoming more important for use in, for example, external vinyl applications, particularly since they are becoming available in a wider range of colours with improved working properDetails of these "man-made" minerals are given in ties. "Plastics Engineering," (Dec. '871, 33.

IMPREGNATION TECHNIQUE FDR ARAMID AND CARBON FIBRE REINFORCED THERMOPLASTICS

Compared with epoxy resins, which are still predominantly used at present, thermoplastics offer a number of advantages as matrix materials for Aramid and carbon fibre reinforced plastics. The impregnation of fibres, however, causes some probAdvantages and disadvantages of impregnation techniques lems. known at present are discussed in this article. 1988, 78,

Kunststoffe,

STABILIZATION OF POLYOLEFINES FOR APPLICATIONS IN EXTRACTIVE MEDIA

(Feb.), 126-131

Polyolefines are used on a considerable scale as materials for applications for which a service life of up to several decades is called for. The contact with liquid media which frequently exists in such applications can lead to an appreciable loss of the stabilizers added as protection against ageing and thereby jeopardize the serviceability of the plastics component. In order to protect against the risks which arise it is necessary to have a knowledge of the extractability of the stabilizers These effects are quantified in this under service conditions. paper. Kunststoffe,

1988, 78, (Feb.), 142-148

MATERIALS END USE TRADE NAME(S) CHEMICAL TYPE COMPANY

FIRE RETARDANT Electrofine S-70 Chlorinated paraffin M. & T. Chemicals

PRODUCT DETAILS

A new grade with less residual carbon tetrachloride. Cont./......

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