Polyurethane Foam Association

Nieuwenhuyse, E. (2006) Thermal Insulation Materials Made of Rigid Polyurethane Foam, Report No. 1, Brussels, Belgium Foundation of European Rigid Polyurethane Foam Associations. 

R. Ricciardi, Presented at the Polyurethane Foam Association conference in Scotsdale, AZ, 1996. 

In-Touch vol. 10(1) Polyurethane Foam Association, Wayne, 2014. Edwards HW, Kostrzewa MF, Fooby GP. Pollution prevention assessment for a manufacture of pressure sensitive adhesive tape. Cincinnati, OH/Washington, DC Environmental Res. Brief National Risk Management, Res. Fab/US EPA 1995. 

Another compound, the antimicrobial action of which is associated with chelation, is 2-pyridinethiol-A/-oxide [3811-73-2] (Omadine). Activity has been shown to depend on coordinating property. The iron chelate is active, but not the free pyridine compound (200). In the form of its zinc chelate it is found in shampoos to control seborrheic dermatitis (201). Other appHcations of this useful chemical include preservation of adhesives, plastics, latex paints, polyurethane foam, and metal working fluids (202). 

These materials not only have a good resistance to burning and flame spread but are also able to withstand service temperatures of up to 150°C. At the same time polyisocyanurate foams have the very good hydrolytic stability and low thermal conductivity associated with rigid polyurethane foams. 

Industrially, silicone surfactants are used in a variety of processes including foam, textile, concrete and thermoplastic production, and applications include use as foam stabilisers, defoamers, emulsifiers, dispersants, wetters, adhesives, lubricants and release agents [1]. The ability of silicone surfactants to also function in organic media creates a unique niche for their use, such as in polyurethane foam manufacture and as additives to paints and oil-based formulations, whilst the ability to lower surface tension in aqueous solutions provides useful superwetting properties. The low biological risk associated with these compounds has also led to their use in cosmetics and personal care products [2]. 

Dernehl CU Health hazards associated with polyurethane foams. J Occup Med 8 59-62, 1966... 

Semivolatile analytes in vapor-phase samples are often associated with particulate matter or aerosols that are collected on glass or quartz fiber filters in a flowing air stream.1 However some semivolatile analytes that have higher VPs, for example, 3,3 ,5,5 -tetra-chlorobiphenyl in Fig. 8.2, can slowly vaporize from a particle trapped on a filter in the flowing air stream, and will be lost unless captured by an in-stream sampling device. Small glass or metal tubes containing polyurethane foam are often used to capture vaporized semivolatile analytes. Other-solid phase adsorbents, which are described in the next section, are also used to trap semivolatile analytes vaporized from particulate filters. 

Camann, D.E., H.J. Harding and R.G. Lewis (1990). Trapping of particle-associated pesticides in indoor air by polyurethane foam and exploration of soil track-in as a pesticide source, in Indoor Air 90, Vol. 2, D.S. WaUdnshaw (Ed.), Canada Mortgage and Housing Corporation, Ottawa, ON, Canada, pp. 621-626. 

Camann, D.E., H.l. Harding, C.L. Stone and R.G. Lewis (1994). Comparison of PM 2.5 and Open-Face Inlets for Sampling Aerosolized Pesticides on Filtered Polyurethane Foam, in Measurement of Toxic and Related Air Pollutants Proceedings of the 1994 USEPA/A WMA International Symposium, Publication VIP-39, Air and Waste Management Association, Pittsburg, PA, USA, pp. 838-843. 

Further important ccranercial flame retardants, developed by associates of Dr. Toy are Fyrol 99 (non-reactive for soft polyurethane foams) as well as halogen-free compounds like Fyrol 51 e.g. for polyurethanes or Fyrol HMP for the fire-protection of automotive air filters (29). In the application for polymer films, in addition to flame protection, Fyrol HMP was (new Victastab HMP) found to enhance the tensile strength of Mylar polyester films considerably. 

Very recently , we have carried out an intercomperison study of hquid-hquid extraction (LLE) and sorption on polyurethane foam (PUF) and Amberlite XAD-2 for the analysis of aliphatic, aromatic and chlorinated hydrocarbons dissolved in seawater. The application of these methods, sampling in parallel the same body of water, has shown significant differences in the recovery of higher molecular weight components in the complex mixtures of both aliphatic and aromatic hydrocarbons. These are attributed to selective associations of these hydrophobic species with macromolecular organic matter such as fulvic and humic acids and to the effects of the dissolved organic molecules on adsorbent properties. 

Three methods that were used to measure the chemical changes associated with oxidative degradation of polymeric materials are presented. The first method is based on the nuclear activation of lsO in an elastomer that was thermally aged in an, 802 atmosphere. Second, the alcohol groups in a thermally aged elastomer were derivatized with trifluoroacetic anhydride and their concentration measured via 19F NMR spectroscopy. Finally, a respirometer was used to directly measure the oxidative rates of a polyurethane foam as a function of aging temperature. The measurement of the oxidation rates enabled acceleration factors for oxidative degradation of these materials to be calculated. 

European Association of Flexible Polyurethane Foam Blocs Manufacturers (Europur)... 

---