Estimated Reading Time: 14 minutes

The early stages of formulating a new polyurethane system is heavy with product data research and calculations. Postulating performance properties from data sheets with targets to meet regulatory standards, energy consumption, and costs is no easy feat. Sometimes ingredients can look like identical twins on paper, but give you a very different outcome in the final system.

Azelis Americas is a primary supplier to manufacturers of polyurethane systems, with industry experts to help you on your formulating journey. Take a look at these featured products for additional insight that allows you to spot the difference in the ingredients you need for your next polyurethane formula!

Carbodiimide-Modified Isocyanate

LUPRANATE MM103 and LUPRANATE 5143

BASF LUPRANATE MM103 and LUPRANATE 5143 isocyanates look like identical twins on paper.  They are a carbodiimide-modified isocyanate around 29.5% free-NCO and 30 cps.  All major urethane producers have such a product.  They look the same… but they are not.

LUPRANATE MM103

  • Workhorse product
  • Supply and cost effective
  • Industry standard
  • More variation in color
Add Sample to Cart
TDS

LUPRANATE 5143

  • More consistent color on average
  • Consistent composition on average
  • Better shelf stability
  • Made to order
Add Sample to Cart
TDS

How to Choose?

Is one LUPRANATE better than the other? That depends on the application. In many larger volume applications, especially when final color is not a consideration, you might benefit from the cost effective LUPRANATE MM103. In other prepolymers or 2K elastomers where outcome consistency is desired, the LUPRANATE 5143 may have an advantage. Each helps the formulator in a different way. The CASE formulator is welcome to have both in their toolbox.

Did you know?

A carbodiimide-modified isocyanate is exactly what it says?  The pure-4,4-MDI is modified (reacted) into carbodiimides in order to create a stable, liquid MDI at room-temperature.  Otherwise, the pure-4,4-MDI will solidify at room temperature and form irreversible solids called dimer.

MDI Prepolymers

The LUPRANATE MP102 and LUPRANATE 5090 are another set of isocyanate twins in the BASF portfolio. Both are MDI-based prepolymers with approximately 23% NCO and 700 cps.  Again, they look the same on paper, but they have different purposes!

LUPRANATE MP102

  • Close to pure 4,4-MDI
  • TPU-like elongation and strength in elastomers and microcellular foams
  • Robust supply
  • Will freeze at cooler temps
Add Sample
TDS

LUPRANATE 5090

  • Cold-stable analog to MP102
  • Good Supply
  • Darker color on average
  • Not quite as TPU-like as MP 102
Add Sample
TDS

How to Choose?

The LUPRANATE MP102 can be purchased from BASF in every major region of the globe. LUPRANATE MP102 is industry standard for light prepolymer that gives TPU-like flexibility with strength to all manner of industrial and consumer urethanes. However, the LUPRANATE MP102 is sensitive to lower temperatures and always processed within an industrial facility. Shipping and handling during the winter is tricky and expensive.

In North America, formulators can also use the LUPRANATE 5090 to tackle 2-component applications in customer or field environments without much temperature control. LUPRANATE 5090 also makes very good cast elastomers, potting compounds and microcellular foam. The downside is that LUPRANATE 5090 is often darker than LUPRANATE MP102.

Polyether Polyols

PLURACOL® is a diverse range of polyether polyols including conventional and graft polyols. The PLURACOL graft series are polyether products containing dispersed particles of co-polymerized styrene and acrylonitrile, or SAN particles. These products offer property improvements for certain applications such as flexible foam and urethane elastomers.

PLURACOL 2010 is formed by adding propylene oxide to a propylene glycol nucleus

Add Sample to Cart
TDS

PLURACOL 220 is a high molecular weight, primary hydroxyl terminated polyol.

Add Sample to Cart
TDS

Have Questions? We’re here to help!

Azelis CASE has technical experts and formulating chemists creating new products in our world-class laboratories. We are ready to share our knowledge and experience with you!

Talk to your Sales Representative or one of our technical experts to get started on your next big project!

Contact an Expert

The information contained in this document is made without guarantee and warranty, express or implied, regarding the suitability for use, merchantability, or performance of the formulation and its ingredients in any application. It is the sole responsibility of the user of this information to determine validity, applicability, and performance of the information, formulations, and claims prior to commercialization, use, and application thereof.