Iridium Hydrosilylation Catalysts Cost Reduction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional hydrosilylation catalysts are costly and difficult to obtain, necessitating a less expensive and more readily available alternative.
Innovation Solution
A composition comprising a reaction product of an Iridium precursor and a ligand, capable of forming a hydrosilylation reaction product with an aliphatically unsaturated compound, which includes an SiH functional compound when the unsaturated compound lacks silicon-bonded hydrogen atoms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional hydrosilylation catalysts (platinum, rhodium, ruthenium, palladium, osmium) are used, then the hydrosilylation reaction can be catalyzed effectively, but the cost becomes extremely high and the materials become difficult to obtain
Solution Approach 1:
The patent replaces expensive precious metal catalysts with a cheaper iron-based catalyst system that can be easily obtained and disposed of after use, eliminating the need for costly platinum, rhodium, ruthenium, palladium, or osmium while maintaining catalytic functionality
Solution Approach 2:
The patent changes the chemical composition parameter of the catalyst from precious metals to iron-based compounds combined with specific ligands (pyridine, phosphine, carbene, or isocyanide), fundamentally altering the catalyst system to achieve both cost reduction and maintained effectiveness
2Reliability
If conventional hydrosilylation catalysts are used, then the reaction can proceed, but the preparation becomes difficult
Solution Approach 1:
The iron-based catalyst system uses readily available iron compounds and common ligands that are easier to procure and prepare than precious metal catalysts, simplifying the manufacturing process while maintaining catalytic activity
Solution Approach 2:
The patent employs composite catalyst systems combining iron precursors with organic ligands (pyridine, phosphine, carbene, or isocyanide), creating effective catalyst complexes that are simpler to prepare than conventional precious metal catalysts while achieving comparable or superior catalytic performance
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution provides a cost-effective and readily available alternative for hydrosilylation reactions, effectively catalyzing the formation of silane, gum, gel, or resin products without the need for expensive metals like platinum.
Implementation Method 1
A reaction product of ingredients comprising an Iridium precursor (Ir precursor) and a ligand
Implementation Method 2
A composition, which is capable of forming a reaction product via hydrosilylation reaction, comprises the reaction product and an aliphatically unsaturated compound having an average, per molecule, of one or more aliphatically unsaturated organic groups capable of undergoing hydrosilylation reaction
Implementation Method 3
capable of undergoing hydrosilylation reaction
Data Source
AI summary
A composition contains (A) a hydrosilylation reaction catalyst and (B) an aliphatically unsaturated compound having an average, per molecule, of one or more aliphatically unsaturated organic groups capable of undergoing hydrosilylation reaction. The composition is capable of reacting via hydrosilylation reaction to form a reaction product, such as a silane, a gum, a gel, a rubber, or a resin. Ingredient (A) contains a metal-ligand complex that can be prepared by a method including reacting a metal precursor and a ligand.