Titanium Complex Curing Catalyst for Safe, Stable Moisture Curing

The patent replaces persistent toxic catalysts (tin compounds) with a more benign alternative (titanium compound complex) that achieves the curing function without long-term environmental harm. The titanium compound complex serves as a single-use catalyst that decomposes after facilitating the curing reaction, avoiding the accumulation of toxic substances in the environment while maintaining effective curing rates.

The patent introduces a complexing agent that forms a complex with the titanium compound, creating an intermediary substance that mediates the curing reaction. This complex acts as a bridge between the catalyst and the polymer, enabling effective catalysis while reducing the toxicity concerns associated with traditional tin-based catalysts. The complex structure allows the titanium compound to function as a catalyst without directly exposing the system to toxic tin substances.

The patent modifies the chemical parameters of the titanium compound by complexing it with a specific agent, changing its physical and chemical properties. This parameter change makes the catalyst less sensitive to moisture and humidity variations. The complexed titanium compound maintains its catalytic activity while becoming more stable against decomposition, allowing consistent curing performance across different humidity conditions.

The patent creates a composite catalyst system by combining the titanium compound with a complexing agent. This composite structure provides the benefits of both components: the titanium compound provides catalytic activity for high curing rates, while the complexing agent provides stability against moisture and humidity. The composite catalyst achieves a balance between reactivity and stability that neither component could achieve alone.