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The term polypropylene glycol or PPG is reserved for polymer of low- to medium-range molar mass when the nature of the end-group, which is usually a hydroxyl group, still matters. The term "oxide" is used for high-molar-mass polymer when end-groups no longer affect polymer properties.
PPG expanded quickly. By 1900, known as the "Glass Trust", it included 10 plants, had a 65 percent share of the U.S. plate glass market, and had become the nation's second largest producer of paint. [4] Today, known as PPG Industries, the company is a multibillion-dollar, Fortune 500 corporation with 150 manufacturing locations around the world.
PPG 2 was a document produced by the British Government to advise local planning authorities on national green belt policy and its consideration in the formation of local plans. The last version was introduced in March 2001 (original) and replaced Planning Policy Guidance (PPG) Note 2 Green belts published in January 1995.
The buildings contain over one million square feet of PPG's Solarban 550 Twindow - 19,750 pieces. The primary building, One PPG Place, is a 40-story tower, with PPG Industries occupying half of the space. The complex also contains a 14-story building, and four 6-story structures. PPG Industries also uses space in one of the other buildings.