Metal-Based Catalysts for Polyurethanes

Reaxis offers a wide range of metal-based catalysts for the synthesis of polyurethanes. Our current catalyst offering includes inorganic tins, organotins, bismuths and zincs. Our expansive line of products offers solutions to the myriad formulation challenges encountered in coatings, adhesives and sealants and plastic end-used applications.

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Product List

Reaxis C125 Stannous Neodecanoate Request A Sample
Reaxis C129 Stannous Octoate Request A Sample
Reaxis C2012 M70 Dibutyltin Blend Request A Sample
Reaxis C2013 Dioctyltin Diacetyl Acetonate Request A Sample
Reaxis C208 Dioctyltin bis-(2-ethylhexanoate) Request A Sample
Reaxis C214 Dioctyltin bis-(isooctyl mercaptoacetate) Request A Sample
Reaxis C216 Dioctyltin Dilaurate Request A Sample
Reaxis C218 Dibutyltin Dilaurate Request A Sample
Reaxis C220 Monobutyltin Tris-(2-ethylhexanoate) Request A Sample
Reaxis C221 Dibutyltin Dineodecanoate Request A Sample
Reaxis C226 Dibutyl Tin bis-(acetylacetonate) Request A Sample
Reaxis C227 Dibutyltin bis-(1-thioglycerol) Request A Sample
Reaxis C228 Dioctyltin Diacetate Request A Sample
Reaxis C233 Dibutyltin Diacetate Request A Sample
Reaxis C248D Dibutyltin Oxide/ Plasticizer Blend Request A Sample
Reaxis C248DN Dibutyltin Oxide/Plasticizer Blend Request A Sample
Reaxis C248DP Dibutyltin Oxide/Plasticizer Blend Request A Sample
Reaxis C314 Dioctyltin bis-(2-ethylhexyl maleate) Request A Sample
Reaxis C316 Dimethyltin Dioleate (Dimethyl bis(oleoyloxy stannane) Request A Sample
Reaxis C317 Dibutyltin bis-(2-ethylhexyl maleate) Request A Sample
Reaxis C318 Dioctyltin Dineodecanoate Request A Sample
Reaxis C319 Dibutyltin Dilauryl Mercaptide Request A Sample
Reaxis C320 Dioctyltin Dilauryl Mercaptide Request A Sample
Reaxis C3208 Bismuth Neodecanoate Request A Sample
Reaxis C3209 Bismuth Neodecanoate (Low Viscosity) Request A Sample
Reaxis C3210 Bismuth Octoate (Catalyst Grade) Request A Sample
Reaxis C322 Dibutyltin bis-(2-ethylhexyl mercaptoacetate) Request A Sample
Reaxis C325 Dimethyltin Dineodecanoate Request A Sample
Reaxis C416 Dioctyltin bis-(2-ethylhexyl mercaptoacetate) Request A Sample
Reaxis C418 Dibutyltin bis-(isooctyl mercaptoacetate) Request A Sample
Reaxis C616 Zinc Neodecanoate Request A Sample
Reaxis C620 Zinc Octoate Request A Sample
Reaxis C708 Zinc/Bismuth Neodecanoate Blend Request A Sample
Reaxis C716 Bismuth Neodecanoate Request A Sample
Reaxis C716LV Bismuth Neodecanoate (Low Viscosity) Request A Sample
Reaxis C717 Zinc/Bismuth Octoate Blend Request A Sample
Reaxis C719 Bismuth Methanesulfonate Solution Request A Sample
Reaxis C739P50 Proprietary Water Soluble Bismuth Complex Request A Sample
Reaxis C739W50 Water Soluble Bismuth Complex Request A Sample

Polyurethane: A Pivotal Component in A Wide Range of Applications

Polyurethane is an essential polymer, renowned for its versatility and adaptability across a multitude of industrial applications. Its popularity is primarily attributed to its unique chemistry, enabling the fabrication of materials with a vast spectrum of different potential mechanical and physical properties. Thus polyurethanes are used in a wide range of applications including, coatings, adhesives and sealants, plastics and foams.

The adaptability of polyurethane also lies in its unique chemistry, which allows for the creation of products with a wide range of hardnesses, flexibility, and densities[1]. Polyurethanes are primarily produced through the reaction of a polyol (an alcohol with multiple reactive hydroxyl groups) and an isocyanate, often catalyzed by various additives including tertiary amines and metals such such as inorganic tin, organotins, bismuth, zinc, zirconium and and iron. 

The production of polyurethanes is a complex process requiring precise control over the specific reactions that occur during polyurethane synthesis.  This is where catalysts play a critical role. They help to advance the polyurethane-forming reactions and control the polymer structure, thereby significantly influencing the properties of the resultant polyurethane.[3]

Reaxis Metal-Based Polyurethane Catalysts: Enhancing Efficiency and Performance

Metal-based catalysts used in polyurethane synthesis are used to selectively accelerate both the polymerization and crosslinking reactions. Tin and bismuth catalysts are ideal for catalyzing the hydroxyl/isocyanate reaction whereas Zzinc catalysts are primarily active for the crosslinking reactions. The functionality of these metal catalysts can be enhanced via ligand selection. For example, sulfur-based ligands enhance the selectivity of the hydroxyl/isocyanate reaction (versus the water reaction) and build in front-end reaction delay.

Reaxis offers a wide range of tin, bismuth and zinc catalysts for polyurethane formulation development. Common inorganic tin catalysts supplied include REAXIS® C125 (Stannous Neodecanoate) and REAXIS® C129 (Stannous Octoate). Common organotin catalysts supplied include a wide range of octyl-, butyl-, and methyl-based products including REAXIS® C218 (Dibutyltin Dilaurate) REAXIS® C233 (Dibutyltin Diacetate) REAXIS® C216 (Dioctyltin Dilaurate)  REAXIS® C325 (Dimethyltin Dineodecanoate), REAXIS® C248 (Dibutyltin Oxide) and REAXIS® C228 (Dioctyltin Diacetate). For sulfur-based tin catalysts, we supply REAXIS® C319 (Dibutyltin Dimercaptide) REAXIS® C214 (Dioctyltin bis-(Isooctyl Mercaptoacetate)) and REAXIS® C322 (Dibutyl bis-(Ethylhexyl Mercaptoacetate)).  Bismuth catalysts supplied include REAXIS® C716 (Bismuth Neodecanoate) REAXIS® C3210 (Bismuth Octoate) and REAXIS® C739W50 (water soluble sulfur-based bismuth). Zinc catalysts offered include REAXIS® C616 (Zinc Neodecanoate) REAXIS® C620 (Zinc Octoate) and REAXIS® C708 (Bismuth/Zinc Neodecanoate).

Reaxis: Your Partner in Polyurethanes

At Reaxis, we are dedicated to providing a wide range of metal-based catalysts for polyurethanes and the expertise to help you implement them effectively. Our comprehensive range of inorganic tin, organotin, bismuth and zinc catalysts can meet the various formulation objectives pertaining to reactivity and environmental/toxicity concerns. With a long history of manufacturing a wide range of metal-based additives and catalysts on commercial scales, combined with new product development and an understanding of polyurethane chemistry, Reaxis is an ideal partner in new formulation development and problem-solving. Our commitment to quality, reliability, and technical support makes us a trusted choice for formulators aiming to enhance their product performance and achieve optimal process efficiency.

References

  1. Polyurethanes. (2022). In Encyclopædia Britannica. Available at: https://www.britannica.com/science/polyurethane
  2. Polyurethane – American Chemistry Council. Available at: https://www.americanchemistry.com/chemistry-in-america/chemistries/polyurethane
  3. Wiley Research, “Effect of Dibutyltin Dilaurate and Triethanolamine Catalysts on Structure and Properties of Polyimide Foams  https://4spepublications.onlinelibrary.wiley.com/doi/abs/10.1002/vnl.21707