 thumb|chemical structure of methyl cyanoacrylate cyanoacrylates are a family of strong fast-acting adhesives with industrial, medical, and household uses. cyanoacrylate adhesives have a short shelf life if not used, about one year from manufacture if unopened, one month once opened. they have some minor toxicity. cyanoacrylates include methyl 2-cyanoacrylate, ethyl-2-cyanoacrylate (commonly sold under trade names such as "super glue" and "krazy glue"), n-butyl cyanoacrylate and 2-octyl cyanoacrylate (used in medical, veterinary and first aid applications). octyl cyanoacrylate was developed to address toxicity concerns and to reduce skin irritation and allergic response. cyanoacrylate adhesives are sometimes known generically as instant glues or superglues (although "super glue" is a trade name).oxford english dictionary, 2nd ed. cites "croid super glue can be used..." (1937); "âgunkâ is what workers in the chrysler corporation factory call their superglue named cycleweld" (1944) the abbreviation "ca" is commonly used for industrial grades. ==development== thumb|harry wesley coover jr. shortly before being awarded the national medal of technology and innovation by us president barack obama in 2010 the original cyanoacrylates (the chemical name for the glue) were discovered in 1942 in a search for materials to make clear plastic gun sights during world war ii, when a team of scientists headed by harry coover jr. stumbled upon a formulation that stuck to everything that it came in contact with; it was rejected for the application. in 1951 cyanoacrylates were rediscovered by eastman kodak researchers harry coover jr. and fred joyner, who recognized their true commercial potential; "eastman #910" (later "eastman 910") was the first cyanoacrylate adhesive to be sold, in 1958. during the 1960s, eastman kodak sold cyanoacrylate to loctite, which in turn repackaged and distributed it under a different brand name "loctite quick set 404". in 1971 loctite developed its own manufacturing technology and introduced its own line of cyanoacrylate, called "super bonder". loctite quickly gained market share, and by the late 1970s it was believed to have exceeded eastman kodak's share in the north american industrial cyanoacrylate market. national starch and chemical company purchased eastman kodakâs cyanoacrylate business and combined it with several acquisitions made throughout the 1970s forming permabond. other manufactu
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