(Reuters) - Specialty chemicals group Atotech Ltd, backed by buyout firm Carlyle Group Inc, is looking to raise up to $751.2 million in its U.S. initial public offering, a filing with the U.S. Securities and Exchange Commission showed. (bit.ly/3sReEMG) The Germany-based firm, which makes specialty chemicals and equipment for printed circuit boards and semiconductors, is keen on selling about 34.1 million shares at a range of between $19 and $22 apiece. About 4.9 million of these shares are being sold by the selling stockholders. At the top end of the range, the company would be valued around $4 billion. Reuters reported in January last year that Carlyle had decided to delay the chemical maker"s IPO fearing that uncertainty around the coronavirus outbreak could hurt the company"s prospective valuation. (reut.rs/3c8AF3v) Carlyle acquired Atotech in 2016 in a deal worth $3.2 billion, including debt. Citigroup, Credit Suisse, BofA Securities and JP Morgan are the lead underwriters for the offering.