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Polyurethane dispersions (PUD’s) are usually high-performance adhesives based on crystalline, hydrophobic polyester polyols, such as hexamethylene adipate, and aliphatic diisocyanates, such as methylene bis(cyclohexyl isocyanate) (H12MDI) or isophorone diisocyanate (IPDI).
Aqueous dispersions of polyurethane composition particles are made by forming a blend of the polyurethane prepolymer and then dispersion this blend in aqueous medium. Typically, polymerization will be done by bulk or solution polymerizing the ingredients of the prepolymer.
The techniques and manufacturing processes have changed over the years from those described in the first papers, journal articles and patents that were published. There are a number of techniques available depending on what type of species is required. An ion may be formed which can be an anion thus forming an anionic PUD or a cation may be formed forming a cationic PUD.
Also, it is possible to synthesize a non-ionic PUD. This involves using materials that will produce an ethylene oxide backbone, or similar, or a water-soluble chain pendant from the main polymer backbone.
Anionic PUDs are by far the most common available commercially. To produce these, initially a polyurethane prepolymer is manufactured in the usual way but instead of just using isocyanate and polyol, a modifier is included in the polymer backbone chain or pendant from the main backbone.
Global automotive polyurethane dispersion market accounted for $XX Billion in 2022 and is anticipated to reach $XX Billion by 2030, registering a CAGR of XX% from 2023 to 2030.
BASF invests in the expansion of polyurethane dispersion business in Europe.
BASF invests in the expansion of polyurethane dispersion business in Europe30 percent increase in production capacity for water-based polyurethane dispersionsBASF meets rising demand for polyurethane dispersions.
BASF announced a single-digit million-euro investment in the capacity expansion of water-based polyurethane dispersions at its Castellbisbal site in Spain. The expansion will allow BASF to increase its production capacity by 30 percent.
They want to continue to provide customers with high-quality polyurethane dispersions and help them grow by ensuring supply reliability. Considering the rising demand for polyurethane dispersions in Europe, this investment underlines our intention to assume a leading position in the business of polyurethane dispersions.
