Polyoxymethylene, also known as acetal resin, polytrioxane and polyformaldehyde, is an engineering plastic used to make gears, bushings and other mechanical parts. The most important polyacetal resin, it is a thermoplastic with good physical and processing properties. It is also sold under the trade namesDelrin, Celcon, and Ultraform, the last two being copolymers. A gear is a toothed wheel designed to transmit torque to another gear or toothed component. ... Crankshaft, babbitt metal, plain bearing shells A plain bearing is a bearing which carries load by sliding. ... An acetal is a functional group or molecule containing the functional group of a carbon bonded to two -OR groups. ... A thermoplastic is a plastic that softens when heated and hardens again when cooled. ... A trade name, also known as a trading name or a business name, is the legal name of a business, or the name which a business trades under for commercial purposes. ... Delrin is the brand name for an acetal resin engineering polymer discovered and sold by DuPont. ... A heteropolymer, also called a copolymer, is a polymer formed when two different types of monomer are linked in the same polymer chain. ...
Short molecules of this compound are also found in formalin preserving solutions. Since formaldehyde polymerizes in water, formalin contains very little formaldehyde in the form of H2CO monomer; most of it forms short chains of polyformaldehyde. A few percent methanol is often added to limit the extent of polymerization.
Synthesis
A solution of formaldehyde in water is first concentrated. When the water content is low enough, the solution is processed to form trioxane, to which dioxolane (from ethylene glycol) is added. Categories: Chemistry stubs ... Ethylene glycol (IUPAC name:ethane-1,2-diol) is a chemical compound widely used as an automotive antifreeze (coolant). ...
Celconacetalcopolymer is comparable to Hostaform® POM and offers high strength and rigidity over a broad temperature range, low wear, toughness and resistance to repeated impact.
Celcon products are used extensively in injection molding and are also readily processable by other conventional techniques such as extrusion, compression molding, rotational molding and blow molding.
Celconacetalcopolymer can be supplied as unfilled polymer of varying viscosities and as specialty grades which include glass reinforced, impact modified, UV resistant, low gloss, static dissipative, low wear, bleach resistant and laser markable products.
In the light of H+H Celcon's representations, we are satisfied that the original undertakings sought are unlikely to be given within a reasonable time.
In the light of the arguments put to the OFT by H+H Celcon, on which the CC was not able to conclude definitively, and which the OFT has not had the benefit of testing publicly, it would be reasonable to assess whether competition concerns would arise at the time of any such partial acquisition.
Also, H+H Celcon put arguments to the OFT on issues on which the CC was not able to conclude definitively, and which we have not had the benefit of testing publicly.
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