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Cocure® 44 A liquid organomercurial catalyst that has a high selectivity toward the isocyanate-hydroxyl reaction as opposed to the isocyanate-water reaction, thus avoiding bubble generation at low levels of moisture. Cocure® 44 has been developed for use in polyether and/or polyester systems where optimum clarity is desired. Cocure® 55 A liquid organomercurial catalyst that has a high selectivity toward the isocyanate-hydroxyl reaction as opposed to the isocyanate-water reaction, thus avoiding bubble generation at low levels of moisture. Cocure® 55 is the catalyst of choice when a long open time (induction period), fast gellation and a short demold time are desired. Cotin® 100 A 100% active dibutyltin oxide catalyst for esterification, transesterification and polycondensation for the preparation of esters, polyesters and alkyds. Dehydration reactions and the oxidative degradation of alcohol's to aldehydes and ketones are minimized with the use of this catalyst. Cotin® 200 A liquid organotin catalyst recommended for the manufacture of silicone and polyurethane systems. Cotin® 200 is a "moderate" urethane catalyst, not yielding rapid or slow cures. It can be used in primary reactions such as the polyol-isocyanate and water-isocyanate reactions, as well as the secondary types such as allophanate and biuret formation. Cotin® 227 A liquid organotin catalyst recommended for use in room temperature vulcanized (RTV) silicone systems and polyurethane foams and elastomers. Cotin® 227 is a "moderate to rapid" catalyst for relatively fast cures. It can be used in primary reactions such as the polyol-isocyanate and water-isocyanate reactions as well as the secondary types such as allophanate and biuret formulation. Cotin® 280 A liquid organotin carboxylate catalyst recommended for use in room temperature vulcanized (RTV) silicone systems and polyurethane foams and elastomers. Cotin® 280 is considered a "moderate to rapid" catalyst, for relatively faster cure. It does not utilize acetic acid in its manufacture, and therefore, does not have the odor or corrosiveness associated with the organotin acetates. Cotin® 430 A liquid organotin catalyst recommended for the manufacture of silicone and polyurethane systems. It offers less moisture sensitivity in comparison to conventional organotin catalysts. Cotin® 430 is considered a "slow" catalyst and is used in silicone reactions and urethane formulations where slow catalysis is required. Cotin® 1707 A liquid organotin carboxylate catalyst recommended for the manufacture of polyurethane systems. Hydroxyl functionality in the carboxylic chain allows this catalyst to react into the polyurethane to minimize migration from the polymer. Major end uses for Cotin® 1707 include rigid and flexible polyurethane foams, coatings, adhesives, sealants, elastomers and casting compounds. Coscat® 16 A proprietary organobismuth compound which was specifically developed as a catalyst for 2-component polyurethane systems. Coscat® 16 catalyst is recommended as a sole or co-catalyst in urethane elastomer systems typically requiring lead, mercury or tin catalysts. Coscat® 16 catalyst has a high selectivity toward the polyol-isocyanate reaction, thus avoiding bubble generation at low levels of moisture. Coscat® 28 A proprietary 100% organobismuth compound which was specifically developed as a catalyst for 2-component polyurethane systems. Coscat® 28 catalyst is recommended for a wide range of elastomeric systems where reduced catalyst toxicity is desirable. Coscat® 28 catalyst provides a reduced toxicity alternative to organo-metallic carboxylates based on lead, mercury or tin without sacrificing performance. Coscat® 28 catalyst has no diluent and has a high selectivity toward the polyol-isocyanate reaction, thus avoiding bubble generation at low levels of moisture. Coscat® 83 A proprietary organobismuth compound which was specifically developed as a catalyst for 2-component polyurethane systems. Coscat® 83 catalyst is recommended as a sole or co-catalyst in urethane elastomer systems typically requiring lead, mercury or tin catalysts. Coscat® 83 catalyst has a high selectivity toward the polyol-isocyanate reaction, thus avoiding bubble generation at low levels of moisture. Coscat® Z-22 A proprietary organozinc compound which was developed as a co-catalyst for use with the Coscat® organobismuth product line for 2-component polyurethane systems. Coscat® Z-22 is recommended for a wide range of elastomeric systems where reduced catalyst toxicity is desirable. Lithium Ricinoleate is a highly efficient catalyst for alcoholysis or transesterification reactions for producing alkyd resins. Lithium Ricinoleate speeds up the alcoholysis step considerably, produces lighter-colored monoglycerides, and eliminates precipitation (insoluble soap formation). Lithium Ricinoleate is useful for improving the yield in difficult esterifications and is particularly effective in the manufacture of dehydrated castor oil alkyds. Vertellus Products • Castor Oil and its Chemistry • Vertellus Home Page |
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