Eastman Chemical Company

The Eastman Chemical Company has pubHshed extensively in the patent Hterature (65—74) and the scientific Hterature (75—77) on processes for making poly(phenylene sulfide)- (9-(phenylene disulfide), and related copolymers. The Eastman process involves the reaction of elemental sulfur with Ndiiodobenzene to yield a phenylene sulfide polymer that also contains phenylene disulfide repeating units in the polymer. The fraction of repeating groups containing... 

The synthesis of poly(arylene sulfide)s via the thermolysis of bis(4-iodophenyl) disulfide has been reported (78). The process leads to the formation of PPS and elemental iodine. This process presumably occurs analogously to that reported by Eastman Chemical Company. 

The ketene—crotonaldehyde route through polyester with various modifications and improvements is reportedly practiced by Hoechst Celanese, Cheminova, Daicel, Ueno, Chisso, Nippon Gohsei, and Eastman Chemical Company. Differences in thein processes consist mosdy in the methods of polyester splitting and first-stage purification. Production of the potassium salt can be from finished sorbic acid or from a stream in the sorbic acid production route before the final drying step. Several patents on the process for producing sorbic acid and potassium sorbate from this route are given in the hterature. 

Madelyn S. Baggett Alison R. Behling Harold E. Carman Eastman Chemical Company... 

World production ia the late 1990s of both natural and synthetic forms of vitamin E is estimated at 22,000 metric tons and growth is expected to keep pace with increasing need. The 1993 U.S. production was 14,096 metric tons (47) with an additional 1080 metric tons from imports. The principal U.S. producers of the natural form are Eastman Chemical Company, Archer Daniels Midland Company, and Henkel, and of synthetic vitamin E, Hoffmaim-La Roche and BASE. International producers include Hoffmaim-La Roche, BASE, Eisai, and Rhc ne-Poulenc. 

Scott D. Bamicki, Ph.D., Senior Research Chemical Engineer, Eastman Chemical Company (Section 13, Distillation)... 

Jeffrey J. Siirola, Ph.D., Research Fellow, Eastman Chemical Company Member, National Academy of Engineering Fellow, American Institute of Chemical Engineers, American Chemical Society, American Association for Artificial Intelligence, American Society for Engineering Education (Section 13, Distillation)... 

Eastman Chemical Company has operated a coal-to-methanol plant in Kingsport, Tennessee, since 1983. Two Texaco gasifiers (one is a backup) process 34 Mg/h (37 US ton/h) of coal to synthesis gas. The synthesis gas is converted to methanol by use of ICl methanol technology. Methanol is an intermediate for producing methyl acetate and acetic acid. The plant produces about 225 Gg/a (250,000 US ton/a) of acetic anhydride. As part of the DOE Clean Coal Technology Program, Air Products and Cnemicals, Inc., and Eastman Chemic Company are constructing a 9.8-Mg/h (260-US ton/d) slurry-phase reactor for the conversion of synthesis gas to methanol and dimethyl... 

The Batch Reaction Subcommittee was chaired by Walter L. Lrank of EQE International. Current members of the subcommittee, listed alphabetically are David J. Christensen, Union Carbide Corporation Warren Greenfield, International Specialty Products Philip P. Malkewicz, Nalco Chemical Company Peter L. McGrath, Olin Corporation Louisa A. Nara, Bayer Corporation Leslie A. Seller, CCPS Staff Consultant Robert Schisla, Eastman Chemical Company Anthony Torres, Eastman Kodak Company Dr. Jan C. Windhorst, Nova Chemicals and Paul Wood, Eli Lilly Company. Eormer subcommittee members who contributed much in getting this project started were Eelix Ereiheiter, CCPS Staff Consultant (deceased) A1 Noren, Monsanto Company-Searle (deceased) John Noronha, Eastman Kodak Company (retired) and Robert Stankovich, Eli Lilly Company. 

Robert M. Schisla, Eastman Chemical Company Peter J. Schmeidler, Rohm and Haas Company... 

S. Richard Turner. Eastman Chemical Company, Kingsport, TN... 

Recently, Eastman Chemical Company reported that ionic liquids can be successfully employed in a vapor take-off process for the carbonylation of methanol to acetic acid in the presence of rhodium and methyl iodide (3). While attempting to extend this earlier work to the carbonylation of ethylene to propionic acid, we discovered that, when using ionic liquids as a solvent, acceptable carbonylation rates could be attained in the absence of any added alkyl iodide or hydrogen iodide (4). We subsequently demonstrated that the carbonylation of methanol to acetic acid could also be operated in the absence of methyl iodide when using ionic liquids (5). 

We thank Eastman Chemical Company for permission to publish this work, Theda Grimm for conducting GC analyses, and Chris Meade for experimental assistance. 

Moody LS, Mackenzie PB, Killan CM, Lavoie GG, Pansik Jr JA, Barrett AGM, Smith TW, Pearson JC (Eastman Chemical Company) (2000) W00050470 [Chem Abstr 133 208316]... 

The Eastman Chemical Company is the sole producer of CHDM in the USA. CHDM is typically produced as a mixture of cis- and trans-isomers, with an equilibrium ratio of approximately 30/70 cis/trans. Additional patents disclose technology for affecting the CHDM isomer ratio [19] and for isomerization of d.v-CHDM to tran.v-CHDM [14], Most commercial CHDM polyesters are prepared from the approximately 30/70 cis/trans ratio, with this isomer ratio being maintained throughout the polymerization process. The effect of the cis- and trans-CHDM isomer ratio on the melting point of terephthalate-based polyester has been previously studied and reported [9, 20], This relationship is shown in Figure 7.1. 

Figure 7.5 Electrical connectors molded from GFR Eastman crystalline PCT. Photograph provided by courtesy of Eastman Chemical Company...

The authors acknowledge Drs James Scanlan and Peter Shang of Eastman Chemical Company for providing unpublished dynamic mechanical analyses data and DSC data, respectively... 

Eckart M. D. and Goodson, R. L. World Patent W099 10 173 (to Eastman Chemical Company), 1999. 

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