The danger of dermatoses due to cold-setting ethoxyline resins (epoxide resins).

Abstract

A new group of synthetic resins (the ethoxyline or epoxide resins) has been widely accepted in industry during the last few years. These resins, thanks to their novel properties as adhesives and casting resins, are used in the modern manufacture of various kinds of apparatus, of electrical equip ment, of automobiles, and of aircraft. They are usually supplied in the form of two reactive com ponents, resin and hardener. The cold-setting casting resins occupy a special position among the ethoxyline resins, most of which are aliphatic-aromaticpolyethers containing hydroxyl and terminal epoxy groups. The highly reactive hardeners employed are usually poly amines. Mix tures of these two are capable of transformation at room temperature into solid, infusible substances. In practice, the ethoxyline resin is mixed with the polyamine hardener in the ratio of about 10 : 1 immediately before use and then applied to the desired point of the material by casting or brushing or injecting. The ethoxyline resins were introduced under the general term epoxide or epoxy resins, being offered under the trademarks epon or araldite casting resin. As is well known, both manufac turers and users of lacquers are familiar with the