Patent Number: 6,166,235

Title: Heterogeneous organotin catalysts

Abstract: This invention provides: (a) new organotin functionalized silanes: (b) a solid prepared by chemically bonding organotin functionalized silanes to a solid inorganic support containing surface hydroxy groups: (c) a solid catalyst prepared from said supported organotin functionalized silane; (d) a process for conducting esterification or transesterification, and urethane, urea, silicone, and amino forming reaction utilizing said solid supported catalyst; (e) a process of separating the solid supported catalyst from the reaction products employing ligand-solid separation techniques; (f) reuse of the solid supported catalyst after being separated from the reaction products; (g) a continuous esterification or transesterification reaction or urethane, urea, silicone, or amino form.

Inventors: Honnick; William D. (Chester, PA), Reifenberg, deceased; Gerald H. (late of Mercer, NJ), Cannon; Kevin C. (Montgomery, PA)

Assignee: Elf Atochem North America, Inc.

International Classification: B01J 31/02 (20060101); B01J 31/16 (20060101); B01J 31/12 (20060101); C07C 67/08 (20060101); C07C 67/03 (20060101); C07F 7/00 (20060101); C07C 67/00 (20060101); C07F 7/22 (20060101); B01J 23/14 (20060101); C07F 007/22 ()

Expiration Date: 12/26/2017