Environmental Engineering Reference
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[38] Rudie, R. (2000). Cargill Dow Sows Seeds of Future Fibers ; Will Build $300 Million
PLA Polymer Plant, International Fiber Journal, February.
[39] Auras, R. A., B. Harte, S. Selke, and R. J. Hernandez (2002). In Mechanical, Physical,
and Barrier Properties of Poly (lactic acid) Films , Worldpak-IAPRI, East Lansing, MI,
48824-1224.
[40] Ajioka, M., K. Enomoto, K. Suzuki, and A. Yamaguchi (1995). Basic properties of
polylactic acid produced by the direct condensation polymerization of lactic acid ,
Bulletin of the Chemical Society of Japan 68:2125-2131.
[41] Moon, S. I., C. W. Lee, M. Miyamoto, and Y. Kimura (2000). Melt polycondensation of
L-lactic acid with Sn(II) catalysts activated by various proton acids: A direct
manufactoring route to high molecular weight poly(L-lactic acid), Journal of Polymer
Science, Part A: Polymer Chemistry 38:1673-1679.
[42] Otera, J., K. Kawada, and T. Yano (1996). Direct condensation polymerization of l-
lactic acid catalyzed by distannoxane, Chemistry Letters 3:225-226.
[43] Hiltunen, K., J. V. Seppal, and M. Harkonen (1997). Effect of catalyst and
polymerization conditions on the preparation of low molecular weight lactic acid
polymers , Macromolecules 30:373-379.
[44] Buchholz, B. (1994). Process for Preparing Polyesters Based on Hydroxycarboxylic
Acids. U.S. Patent 5,302,694, April 12.
[45] Aharoni, S. M., and D. Masilamani (1986). Process for Preparing Extended Chain
Polyesters and Block or Graft Copolyesters. U.S. Patent 4,568,720, February 4.
[46] Woo, S. I., B. O. Kim, H. S. Jun, and H. N. Chang (1995). Polymerization of aqueous
lactic acid to prepare high molecular weight poly (lactic acid) by chain-extending with
hexamethylene diisocyanate , Polymer Bulletin 35:415-421.
[47] Bonsignore, P. V. (1995). Production of High Molecular Weight Polylactic Acid. U.S.
Patent 5,470,944, November 28.
[48] Bellis, H. E. (1988). Process for preparing highly pure cyclic esters . U.S. Patent
4,727,163, February 23.
[49] Bhatia, K. K. (1991). Continuous process for rapid conversion of oligomers to cyclic
esters. U.S. Patent 5,023,349, June 11.
[50] Bhatia, K. K. (1991). Process for the purification of cyclic esters . U.S. Patent
5,023,350, June 11.
[51] Bhatia, K. K. (1991). One-step continuous process for preparing cyclic esters . U.S.
Patent 5,043,458, August 27
[52] Bhatia, K. K. (1992). Process for rapid conversion of oligomers to cyclic esters . U.S.
Patent 5,091,544, February 25.
[53] Bhatia, K. K. (1992). Solvent scrubbing recovery of lactide and other dimeric cyclic
esters. U.S. Patent 5,266,706, November 30.
[54] Bhatia, K. K., N. E. Drysdale, J. R. Kosak (1992). Solvent scrubbing recovery of lactide
and other dimeric cyclic esters . U.S. Patent 5,117,008, May 26.
[55] Bhatia, K. K., J. V. Tarbell (1993). Co-vaporization process for preparing lactide . U.S.
Patent 5,196,551, March 23.
[56] Fridman, I. D., and J. Kwok (1993). Lactide Melt Recrystallization . U.S. Patent
5,264,592.
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