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2019-06-13

LANXESS presents novel and superior urethane-based coating systems

  • Customized aliphatic low free prepolymers for demanding protective coatings
  • Crosslinkers and adhesion promoters for high-quality coatings
  • Water-based polyurethane dispersions for high performance construction coatings

Pittsburgh, Pa. – June 13, 2019 – At this year's Latin American Coatings Show (LACS) taking place at Centro Banamex in Mexico City from June 19 to June 21, LANXESS Urethane Systems will present its comprehensive product portfolio for the coatings industry (located at distribution partner First Quality Chemicals - Booth 811-818). One focus will be on innovative raw materials for formulating aqueous and solvent-free systems for a wide range of applications, from glass fiber sizing and plastic coating to textile finishing and rotor blade coatings of wind turbines.

 

Customized prepolymers for demanding applications

 

LANXESS’s ‘Low Free’ products (<0.1% diisocyanate monomer content) based on aliphatic isocyanates in particular, combine an outstanding property profile with the highest ecological and industrial hygiene standards. These Adiprene® LF prepolymers are preferred in applications subjected to continuous exposure to environmental influences with high expectations in terms of durability and longevity; for example, outdoor waterproofing, protecting concrete for bridges, roofs, and balconies, and anticorrosion coatings on metal.

 

“For high-end applications, like the protective coating of the leading edge of wind turbine rotor blades, this technology protects the rotor blades from the variety of stresses, such as UV radiation and erosion, and also provides the necessary flexibility/elasticity from a durable coating on a flexible and vibrating blade. In particular, the offshore sector is challenging because conducting the maintenance of the blades is highly complicated in this environment,” explains Julie Chapelet, Global Strategic Marketing Manager at the LANXESS Urethane Systems business unit.

 

Performance boost for aqueous coatings systems by crosslinking with Trixene® Aqua blocked crosslinkers

 

The unique Trixene Aqua range of water-based blocked isocyanate dispersions are excellent crosslinkers and adhesion promoters for aqueous coatings systems. They boost the chemical and mechanical resistance of coatings and sizing formulations to allow much better performance and durability in the final application. Due to the blocked isocyanate group they are more stable as the respective free counterparts, and can easily be formulated in 1-K and 2-K systems together with a variety of complementary aqueous resins, e.g. hydroxy-functional acrylics, polyesters and urethanes.

This is beneficial for instance in textile processing where Trixene Aqua BI 220 can be used as an adhesion promoter for water-repellent finishes on sports and fashion clothing, delivering superior durability. Likewise, Trixene Aqua BI 201 can be used as a crosslinker for automotive clear coats, giving rise to improved chipping resistance and optical appearance.

 

Witcobond® polyurethane dispersions: a strong building block for water-based, high performance PU coating systems

 

LANXESS offers a full portfolio of water-based Witcobond polyurethane dispersions (PUD). Especially for the construction industry, PU acrylic hybrids (Witcobond A-100) are used as a top coat binder for wood flooring and concrete coating. By blending with Witcobond 386-03, its properties can be easily adjusted to meet the required flexibility and impact resistance of the final application. Witcobond products can be employed in a broad range of other applications, such as waterborne coatings and finishes for hard and flexible substrates. They include anionic, cationic and nonionic chemistry, so binders covering the full pH range are available.

 

Trixene® blocked prepolymers for flexibilization of epoxy-based protective coatings

 

Epoxy resins have excellent properties and are widely used in corrosion protection coatings and flooring applications. Due to their high mechanical rigidity they can be brittle and tough, therefore they need to be flexibilized to suit specific applications. LANXESS’ Trixene blocked prepolymers readily react with standard amine hardeners used in 2K epoxy resin formulations, allowing permanent flexibilization of the end product. Specifically, our bio-based and nonylphenol-free Trixene BI 7774 improves flexibility and impact resistance of epoxy coatings, without compromising chemical resistance, as well as addresses regulatory compliance.

 

 

LANXESS is a leading specialty chemicals company with sales of EUR 7.2 billion in 2018. The company currently has about 15,500 employees in 33 countries and is represented at 60 production sites worldwide. The core business of LANXESS is the development, manufacturing and marketing of chemical intermediates, additives, specialty chemicals and plastics. LANXESS is listed in the leading sustainability indices Dow Jones Sustainability Index (DJSI World and Europe) and FTSE4Good.

 

Forward-Looking Statements
This company release contains certain forward-looking statements, including assumptions, opinions, expectations and views of the company or cited from third party sources. Various known and unknown risks, uncertainties and other factors could cause the actual results, financial position, development or performance of LANXESS AG to differ materially from the estimations expressed or implied herein. LANXESS AG does not guarantee that the assumptions underlying such forward-looking statements are free from errors nor does it accept any responsibility for the future accuracy of the opinions expressed in this presentation or the actual occurrence of the forecast developments. No representation or warranty (expressed or implied) is made as to, and no reliance should be placed on, any information, estimates, targets and opinions, contained herein, and no liability whatsoever is accepted as to any errors, omissions or misstatements contained herein, and accordingly, no representative of LANXESS AG or any of its affiliated companies or any of such person's officers, directors or employees accept any liability whatsoever arising directly or indirectly from the use of this document.

 

Information for editors:

You can find further information concerning LANXESS chemistry in our WebMagazine at http://webmagazine.lanxess.com.

 

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