urea(-formaldehyde) resins

См. также в других словарях:

• urea–formaldehyde resin — ▪ chemical compound       any of a class of substances belonging to the family of organic polymers (polymer), prepared by heating urea and formaldehyde in the presence of mild alkalies, such as pyridine or ammonia. The urea and formaldehyde… …   Universalium

• Urea-formaldehyde — Urea formaldehyde, also known as urea methanal, named so for its common synthesis pathway and overall structure [ [http://www.chm.bris.ac.uk/webprojects2002/robson/uses of formaldehyde.htm Uses Of Formaldehyde ] ] , is a transparent thermosetting …   Wikipedia

• urea-formaldehyde resin — [yo͞o rē′əfôr mal′də hīd΄, yoor′ē əfôr mal′də hīd΄] n. any of a class of strong, odorless, thermosetting resins formed by condensing urea and formaldehyde in the presence of a catalyst: used in making buttons, tableware, etc …   English World dictionary

• urea-formaldehyde resin — noun a clear thermosetting resin made from urea and formaldehyde and used in electrical fittings, adhesives, and finishes • Hypernyms: ↑synthetic resin * * * noun : a thermosetting synthetic resin made by condensing urea with formaldehyde and… …   Useful english dictionary

• urea-formaldehyde resin — /yoo ree euh fawr mal deuh huyd , feuhr , yoor ee euh /, Chem. any of a group of resins formed by the interaction of urea and formaldehyde under conditions that include heat and pH control: used chiefly in the manufacture of buttons, baking… …   Universalium

• urea-formaldehyde resin — ure′a formal′dehyde res in n. chem. any of a group of resins formed by the interaction of urea and formaldehyde, used chiefly in the manufacture of buttons and baking enamels …   From formal English to slang

• Urea — Urea …   Wikipedia

• Formaldehyde — For other uses, see Formaldehyde (disambiguation). Formaldehyde …   Wikipedia

• formaldehyde — /fawr mal deuh huyd , feuhr /, n. Chem. a colorless, toxic, potentially carcinogenic, water soluble gas, CH2O, having a suffocating odor, usually derived from methyl alcohol by oxidation: used chiefly in aqueous solution, as a disinfectant and… …   Universalium

• urea — ureal, ureic, adj. /yoo ree euh, yoor ee euh/, n. 1. Biochem. a compound, CO(NH2)2, occurring in urine and other body fluids as a product of protein metabolism. 2. Chem. a water soluble powder form of this compound, obtained by the reaction of… …   Universalium

• Formaldehyde releaser — A formaldehyde releaser is a chemical compound that slowly releases formaldehyde. Antimicrobials Formaldehyde releasers are often used an antimicrobial preservative in cosmetics. Examples include:* Quaternium 15 * Imidazolidinyl urea (Germall… …   Wikipedia