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The produced ethyl acetate is being exported to more than 10 European countries. They use it in chemical industry, pharmaceutics and typography. Urea-formaldehyde resin (UFR) is the key element for chipboard, fiberboard and plywood production in Ukraine and Europe as a whole. This resin has low toxicity and low levels of free formaldehyde.
2007: Arkema sells its agrochemical business (Cerexagri) to United Phosphorus [12] and its urea-formaldehyde activities to Hexion. [13] 2007: acquires Coatex company (specialty acrylic polymers) 2010: acquires acrylic Dow assets in the US [14] 2011: acquires Total coating resins (Cray Valley and Sartomer) [15]
Urea-formaldehyde (UF), also known as urea-methanal, so named for its common synthesis pathway and overall structure, [1] is a nontransparent thermosetting resin or polymer. It is produced from urea and formaldehyde. These resins are used in adhesives, plywood, particle board, medium-density fibreboard (MDF), and molded objects.
Formaldehyde is a common precursor to more complex compounds and materials. In approximate order of decreasing consumption, products generated from formaldehyde include urea formaldehyde resin, melamine resin, phenol formaldehyde resin, polyoxymethylene plastics, 1,4-butanediol, and methylene diphenyl diisocyanate. [40]
Sensitization to formaldehyde has been decreasing since 1980 due in part to the replacement of formaldehyde by these formaldehyde releasers. [2] As of 2009, frequency of sensitization to formaldehyde is stable at 2–3% in Europe. [2] It might be as high as 9% in the USA. [2] [13]
Solenis' line of Soyad adhesives contains no formaldehyde and low volatile organic compounds (VOCs). Typical interior wood products include urea formaldehyde (UF) in their adhesives. Over time, UF releases free formaldehyde into the air in a carcinogenic gaseous form, which can be inhaled by humans.
Controlled-nitrogen-release technologies based on polymers derived from combining urea and formaldehyde were first produced in 1936 and commercialized in 1955. [3] The early product had 60 percent of the total nitrogen cold-water-insoluble, and the unreacted (quick-release) less than 15%.
Adding urea to MF resins has been shown to lower the amount of free formaldehyde below the legal limit and is often used for this purpose. [1] Another complication with MF resins is the low solubility of melamine in water. [16] Because of this and the free formaldehyde content, MF resins are not used as commonly in the field of wood modification.