1
Brad L Smith, G Paull Torrence, Adolfo Aguilo, James S Alder: Methanol carbonylation process. Hoechst Celanese Corporation, Donald R Cassady, September 1, 1992: US05144068 (226 worldwide citation)

An alcohol such as methanol is reacted with carbon monoxide in a liquid reaction medium containing a rhodium catalyst stabilized with an iodide salt, especially lithium iodide, along with alkyl iodide such as methyl iodide and alkyl acetate such as methyl acetate in specified proportions. With a fin ...


2
Brad L Smith, G Paull Torrence, Adolfo Aguilo, James S Alder: Methanol carbonylation process. Hoechst Celanese Corporation, Ralph M Pritchett, Donald R Cassady, March 19, 1991: US05001259 (212 worldwide citation)

An alcohol such as methanol is reacted with carbon monoxide in a liquid reaction medium containing a rhodium catalyst stabilized with an iodide salt, especially lithium iodide, along with alkyl iodide such as methyl iodide and alkyl acetate such as methyl acetate in specified proportions. With a fin ...


3
Brad L Smith, G Paull Torrence, Adolfo Aguilo, James S Alder: Methanol carbonylation process. Hoechst Celanese Corporation, Donald R Cassady, June 25, 1991: US05026908 (195 worldwide citation)

An alcohol such as methanol is reacted with carbon monoxide in a liquid reaction medium containing a rhodium catalyst stabilized with an iodide salt, especially lithium iodide, along with alkyl iodide such as methyl iodide and alkyl acetate such as methyl acetate in specified proportions. With a fin ...


4
G Paull Torrence, Joel D Hendricks, Dennis D Dickinson, Adolfo Aguilo: Addition of hydrogen to carbon monoxide feed gas in producing acetic acid by carbonylation of methanol. Hoechst Celanese Corporation, Donald R Cassady, Depaoli & O Brien, February 19, 1991: US04994608 (156 worldwide citation)

The carbonylation of an alcohol to produce a carboxylic acid, especially methanol to produce acetic acid, in a low water reaction medium containing a rhodium catalyst stabilized with an iodide salt, especially lithium iodide, along with alkyl iodide such as methyl iodide and alkyl acetate such as me ...


5
Mark O Scates, Steven E Parker, Jennifer B Lacy, Russell K Gibbs: Recovery of acetic acid from dilute aqueous streams formed during a carbonylation process. Hoechst Celanese Corporation, Donald R Cassady, Stuart D Frenkel, February 4, 1997: US05599976 (146 worldwide citation)

A method is provided to improve the quality of recycle of certain residues by modifying the separation of alkanes and alkane-like materials and carbonyl-containing impurities from the recycle during the manufacture of acetic acid by the carbonylation of methanol. The improvement comprises partitioni ...


6
H Gunter Groeger, George A Serad, Clinton D Felton: Fibrous structures containing immobilized particulate matter. Hoechst Celanese Corporation, Philip P McCann, January 23, 1996: US05486410 (136 worldwide citation)

A fibrous structure comprising a composite fiber matrix loaded with immobilized functional particulate and including void spaces forming tortuous flow paths, is provided. The particulate is beneficially distributed in the interior of the fibrous structure in three dimensions and fused to a low melti ...


7
Douglas R Chambers, Hubert H Fowler Jr, Yoji Fujiura, Fusayoshi Masuda: Super-absorbent polymer having improved absorbency properties. Hoechst Celanese Corporation, Herbert P Price, September 8, 1992: US05145906 (101 worldwide citation)

Super-absorbent polymers having superior dryness properties when incorporated into absorbent articles are made from acrylic acid and crosslinking agent polymerized under controlled conditions.


8
Yoji Fujiura, Takashi Sumiya: Fluid absorbent compositions and process for their preparation. Hoechst Celanese Corporation, Hugh C Crall, March 26, 1991: US05002986 (89 worldwide citation)

This invention relates to fluid absorbent polymer compositions having the ability to absorb aqueous ionic fluids and water rapidly and efficiently. These fluid absorbent polymer compositions are prepared from fine base polymer particles which are ionically surface crosslinked and agglomerated into l ...


9
H Gunter Groeger, George A Serad, Clinton D Felton: Fibrous structures containing particulate and including microfiber web. Hoechst Celanese Corporation, Timothy R Kroboth, February 25, 1997: US05605746 (83 worldwide citation)

A fibrous structure comprising a composite fiber matrix loaded with immobilized functional particulate and including void spaces forming tortuous flow paths, is provided. The particulate is beneficially distributed in the interior of the fibrous structure in three dimensions and fused to a low melti ...


10
Douglas R Chambers, William G J Chiang, Guy T Woodrum: Superabsorbent polymers and products therefrom. Hoechst Celanese Corporation, Hugh C Crall, January 28, 1997: US05597873 (83 worldwide citation)

A surface crosslinked superabsorbent polymer composition, a process for its preparation and articles made therefrom wherein said superabsorbent composition is prepared by surface crosslinking the polymerization product of a carboxyl or carboxylate group containing monomer with a crosslinker solution ...



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