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HDPE pipe is a type of flexible plastic pipe used to transfer fluids and gases.It is often employed for replacing aging concrete or steel main pipelines.Constructed from the thermoplastic HDPE (high-density polyethylene), it has low permeability and robust molecular bonding, making it suitable for high-pressure pipelines.
The company was founded by Ting Tsung Chao in 1986. [ 3 ] it is the largest producer of low-density polyethylene (LDPE) in the US and ranks among the Forbes Global 2000 . [ 4 ] [ 5 ] Westlake Chemical operates in two segments: Olefins and Vinyls, and is also an integrated producer of vinyls, with substantial downstream integration into ...
Polyethylene was first synthesized by the German chemist Hans von Pechmann, who prepared it by accident in 1898 while investigating diazomethane. [12] [a] [13] [b] When his colleagues Eugen Bamberger and Friedrich Tschirner characterized the white, waxy substance that he had created, they recognized that it contained long −CH 2 − chains and termed it polymethylene.
HDPE is known for its high strength-to-density ratio. [4] The density of HDPE ranges from 930 to 970 kg/m 3. [5] Although the density of HDPE is only marginally higher than that of low-density polyethylene, HDPE has little branching, giving it stronger intermolecular forces and tensile strength (38 MPa versus 21 MPa) than LDPE. [6]
Lone Star Steel Company (acquired by U.S. Steel in 2007) Maanshan Iron & Steel (acquired by China Baowu in 2019) Mittal Steel Company (merged with Arcelor forming ArcelorMittal) National Steel Corporation (acquired by U.S. Steel in 2003) Northwestern Steel and Wire (reorganized and operating as Sterling Steel Company)
Lyondell Chemical Company is formed from selected chemical and refining assets of Atlantic Richfield Company (ARCO). 1989: Lyondell is spun off from ARCO, becoming a public company listed on the New York Stock Exchange (Ticker symbol: LYO). 1990: Lyondell acquires low-density polyethylene (LDPE) and polypropylene (PP) businesses from Rexene. 1993
The $14.9 billion sale of iconic steelmaker US Steel to Japan’s Nippon Steel ends months of speculation over industry consolidation in a move criticized by union workers, but seen by one analyst ...
The plastics industry manufactures polymer materials—commonly called plastics—and offers services in plastics important to a range of industries, including packaging, building and construction, electronics, aerospace, manufacturing and transportation.
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