Food contact blowing agents

Blowing agents for foams Food contact Disposal, recycling Realistic evaluation of product use (flame retardants, volatiles, etc.). 

Expanded polystyrene (EPS) articles are made using high impact polystyrene formulations with incorporation of a blowing agent (this is usually a volatile solvent such as pentane). Often, EPS containers will have a crystal polystyrene skin applied to the food contact surface to act as a barrier between food and container. Applications of EPS include thermoformed packaging for eggs, meat, fish and fast food trays. Substances typically used in the manufacture of polystyrene are given in Table 10.3. 

Chem. Descrip. Modified azodicarbonamide CAS 123-77-3 EINECS/ELINCS 204-650-8 Uses Chemical blowing agent for cellular vinyl for plasticized vinyl, inj. molding structural foam, extrusion applies. food-contact coatings, rul> ber articles, closures with sealing ga ets for food containers Features Flow-treated dispersible free-flowing for Hopper blender units produces blown vinyl prod, with fine uniform cell structure eliminates settling problems... 

Uses Chemical blowing agent for sponge rubber, expanded plastics, esp. EVA copolymers, LDPE, and PVC for cellular cable insulation, rug underlay, gaskets, upholstery material, adhesives food-contact rubber articles for repeated use in closure-sealing gaskets for food containers... 

NFPA Health 3, Reactivity 2 Uses Catalyst/initiator for vinyl polymehzations and for curing unsaturated polyester resins free radical generator blowing agent for plastics esp. for PVC prod, of floats, buoys polymerization catalyst for paper/paperboard in contact with aq.ffatty foods catalyst in food-contact crosslinked polyesters in food-pkg. adhesives... 

Carbon tetrabromide p-Tolylsulfonyl hydrazine blowing agent, rubber articles for repeated use food-contact Azodicarbonamide blowing agent, rubber goods Benzene-1,3-disulfonyl hydrazide ... 

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