sign on, 1  to employ; hire. 2  to bind oneself to work, as by signing a contract: He signed on as a pitcher with a major-league team. 3  to start radio or television broadcasting, especially at the beginning of the day. 4  Computers. log1 (def 17a).
FROM FIBER TO FABRIC: ACETATE INTRODUCTION Initially invented in Europe as a varnish for airplane wings, acetate was first produced in the United States in 1924 making it the second oldest manufactured fiber.
Ethyl acetate is the organic compound with the formula CH 3âCOOâCH 2âCH 3, simplified to C 4H 8O 2. This colorless liquid has a characteristic sweet smell and is used in glues, nail polish removers, decaffeinating tea and coffee, and cigarettes. Ethyl acetate is the ester of ethanol and acetic acid; it is manufactured on a large scale for use as a solvent. The combined annual production in 1985 of Japan, North America, and Europe was about 400,000 tonnes. In 2004, an estimated 1.3 ...