Elf Atochem North America, Inc.

Atofina Chemicals, Inc.

Kevin C Cannon

William D Honnick

Wayne Ranbom

Emily C Bossert

Sri Ram Seshadri

Gerald H Reifenberg, Deceased

Gerald H Reifenberg

Ryan R Dirkx

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&mdash;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 forming reaction or urethane, urea, silicone, or amino forming reaction comprising passing reactants for a esterification or transesterification reaction or urethane, urea, silicone, or amino forming reaction or a urethane, urea, silicone, or amino forming reaction or a urethane, urea, silicone, or amino forming reaction reaction through a reactor containing a catalytically effective amount of said solid supported catalyst to form esterification or transesterification reaction or a urethane, urea, silicone, or amino forming reaction or a urethane, urea, silicone, or amino forming reaction products in said reactor and removing said reaction products from said reactor; and (h) esterification or transesterification reaction or a urethane, urea, silicone, or amino forming reaction or urethane, urea, silicone, or amino forming reaction products produced with said solid, supported, tin-containing catalyst and said reaction products containing less than 100 ppm tin by weight; and (i) the synthesis of organotin silanes with and without a Lewis acid.

Heterogeneous organotin catalysts

This invention relates to a method for manufacturing polyesters, in particular, to using a lithium titanyl oxalate as the catalyst for such reaction to provide fast reactions with excellent color properties for the resulting polyester. The present invention provides an improved method of producing polyester by the polycondensation of polyester forming reactants wherein the improvement comprises utilizing, as the polycondensation catalyst, lithium titanyl oxalate. The improved process produces a polyester of improved color versus other titanyl oxalate catalysts and a novel polyester without the presence of antimony.

Polyester polycondensation with lithium titanyl oxalate catalyst

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 forming reaction or urethane, urea, silicone, or amino forming reaction comprising passing reactants for a esterification or transesterification reaction or urethane, urea, silicone, or amino forming reaction or a urethane, urea, silicone, or amino forming reaction or a urethane, urea, silicone, or amino forming reaction reaction through a reactor containing a catalytically effective amount of said solid supported catalyst to form esterification or transesterification reaction or a urethane, urea, silicone, or amino forming reaction or a urethane, urea, silicone, or amino forming reaction products in said reactor and removing said reaction products from said reactor; and (h) esterification or transesterification reaction or a urethane, urea, silicone, or amino forming reaction or urethane, urea, silicone, or amino forming reaction products produced with said solid, supported, tin-containing catalyst and said reaction products containing less than 100ppm tin by weight; and (i) the synthesis of organotin silanes with and without a Lewis acid.

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.

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.

The invention comprises a curable composition comprising: (i) a blocked reactive component wherein the blocked reactive component is a blocked isocyanate or a blocked isothiocyanate; (ii) a functional compound reactive with the blocked reactive component, the functional compound containing reactive hydrogen; (iii) a catalyst for promoting the reaction of the reactive component with the blocked functional compound, wherein said catalyst is based on the reaction product of manganese, cobalt, nickel, copper, zinc, germanium, antimony, or bismuth, or the oxides thereof with a mercaptan, or an organic acid, wherein said organic acid is hexanoic, oxalic, adipic, lactic, tartaric, salicylic, thioglycolic, succinic, or mercapto succinic acid, or the reaction product of copper or germanium, or the oxides thereof with a lower aliphatic acid. The manganese, cobalt, nickel, copper, zinc, germanium, antimony, or bismuth catalysts can be used in conjunction with other compounds to promote the reaction, especially compounds based on tin, preferably organotin compounds. Water soluble catalysts are preferred. The coating composition can be electrocoated on a conductive substrate and cured.

Metal containing e-coat catalysts optionally with tin catalysts

Metal containing E-coat catalysts optionally with tin catalysts

The invention comprises a curable composition comprising: (i) a blocked reactive component wherein the blocked reactive component is a blocked isocyanate or a blocked isothiocyanate; (ii) a functional compound reactive with the blocked reactive component, the functional compound containing reactive hydrogen.; (iii) a catalyst for promoting the reaction of the reactive component with the blocked functional compound, wherein said catalyst is based on the reaction product of manganese, cobalt., nickel, copper, zinc, germanium, antimony, or bismuth, or the oxides thereof with a mercaptan, or an organic acid, wherein said organic acid is hexanoic, oxalic, adipic, lactic, tartaric, salicylic, thioglycolic, succinic, or mercapto succinic acid, or the reaction product of copper or germanium, or the oxides thereof with a lower aliphatic acid. The manganese, cobalt, nickel, copper, zinc, germanium, antimony, or bismuth catalysts can be used in conjunction with other compounds to promote the reaction, especially compounds based on tin, preferably organotin compounds. Water soluble catalysts are preferred. The coating compositior can be electrocoated on a conductive substrate and cured.

The invention comprises a curable composition comprising:

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Montgomery, CA, United States of America

Kevin C Cannon