Hooker Chemical Company

Love Canal, New York Dioxins, TCP, and hazardous wastes Hooker Chemical Company, New York... 

Figure 14. Plots of the glass transition temperature of the soft segment phase, Tffs, Young s modulus E, and SAXS intensity, l(cps), vs. post-annealing time for a commercial polyester polyurethane (MDI/BD based), R53 (Hooker Chemical Company) (fixed s = 0.042 A 1 for SAXS data) (97).

HexabromocyclopentaeEeiie (2,90), An improved procedure for the West preparation of hexabromocyclopentadiene (2) by an exchange reaction of hexachlorocyclo-pentadiene (1, Hooker Chemical Company) with boron tribromide in the presence of aluminum bromide and bromine has been published. ... 

Supplier Hooker Chemical Company. Commercial material may be purified by crystallization from n-heptane, or by distillation. ... 

This process is covered by a number of patents, in particular U.S. 1,963,761 and 2,035,917, which are assigned to F. Raschig, G.m.b.H. In the United States, the process was developed by Durez Plastics and Chemicals Corporation (now a division of Hooker Chemical Company) and is now used by other firms. See also B.I.OJS. Final Re-pls. 507 and 1841, Item No. 22. 

Chlorine emissions in tons per year are summarized by county in Figure 1 these estimates may be conservative but do reflect potential source emissions. As suspected, the major source of chlorine emissions occurs in Niagara County, emitting approximately 185 tons per year Hooker Chemical Company of Niagara Falls, alone, emits 125 tons per year and is considered the largest chlorine emitter in the State. Other major centers of emissions include portions of Central and New York. These findings indicate that sig-quantities of chlorine gas are emitted into the atmosphere within New York State the possible transport and washout in rainfall of these emissions warrants further attention. 

Love Canal was built near Niagara Falls, New York, in the 1800s to link waterways. Although it was never completed, the canal, in the form of a half-mile ditch, remained until the Hooker Chemical Company purchased it in the early part of the twentieth century as a dumpsite for hazardous waste. Once full, the canal was covered and eventually wound up as the building site for a school with residential properties nearby. 

Hooker Chemical Company Institut Frangais du P6trole Institution of Chemical Engineers M.W. Kellogg Company Kennecott Copper Corporation Kerr-McGee Chemical Corporation Olin Chemicals Group Phillips Petroleum Company Shell Development Company Simulation Sciences, Inc. 

Hooker Chemical Company, "Fluorolubes," Technical Bulletin No. 30, Niagara Falls, New York (1952). 

The Love Canal affair of the 1970s and 1980s brought hazardous wastes to public attention as a major political issue in the United States. Starting around 1940, the Hooker Chemical Company used this site of an abandoned canal in Niagara Falls, New York, to dispose of about 20,000 metric... 

Polyarylates, PARs, are a family of aromatic polyesters derived from aromatic dicarboxyUc acids and bisphenols. They have been under investigation since the late 1950s. The polyarylates that have received the most attention are based on BPA and isophthalic or terephthalic acids. The homopolymers of bisphe-nol A and isophthalic acid or terephthahc acids are semicrystalline [59]. These polymers have T s of 183 and 206°C and T s of 270 and 370 C, respechvely. These semicrystalline polyarylates were not commercialized because of their high crystaUine melhng points and very slow crystallizahon rates. However, amorphous PARs are prepared from a mixture of isophthalic and terephthahc acids and BPA and can be melt-processed without difficulty. The structure appears in Fig. 1.34. Unihka of Japan (1974), Union Carbide Corporahon (now Solvay Advanced Polymers) (1978), Hooker Chemical Company (1979), and DuPont (1986) commercialized PARs under the trade names U-polymer, Ardel, Durel, and Arylon, respechvely. PARs exhibit T s of 180-185°C. 

Chlorinated polyestei hydroxyl number 390 (Hetrofoam, Hooker Chemical Company) -... 

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