From December 8th to 10th, 2020, the 25th China International Coatings Show will be held in Guangzhou. In the context of the normalization of epidemic prevention and control, for the first time, this year's Coatings Exhibition adopted the form of an online virtual exhibition hall combined with a physical venue to provide exhibitors and visitors with a new experience. Covestro made its first appearance at the China International Coatings Show in the form of an online showroom, and continued the theme of "Connecting to a sustainable future", focusing on the circular economy, displaying innovations in multiple fields and the latest cooperation results, and exploring coatings with partners in various fields Industry development trends help China's circular economy and sustainable development.

In recent years, with the "new infrastructure" wave and the advent of the 5G era, the digital economy has developed rapidly, and new markets and new business formats have emerged one after another, which has injected new sources of China's economic growth. At the same time, the demand for sustainable development in various fields is constantly increasing. To this end, Covestro has launched a series of innovative waterborne polyurethane coating solutions, involving industries such as construction, automotive, consumer electronics and textiles. Successful cases of these solutions in multiple application areas will be displayed in the Covestro online showroom . Digital innovation boosts sustainable development in multiple fields To seize digital opportunities, Covestro has applied digital technology and working methods to all links including R&D, production, and logistics, hoping to drive the digitalization process of China’s chemical industry through a series of innovative solutions. And accelerate the transition to a circular economy. "Zhong Xiaobin, Senior Vice President of Covestro Coatings, Adhesives and Specialty Chemicals Business Unit Asia Pacific, said, "With the help of the online exhibition hall, we hope that more people will understand the products, technologies and solutions of Covestro in daily life. Applications in all areas of life, more intuitively feel our close connection with a sustainable future. "

In the construction sector, in response to the urgent need for high-performance water-based products in the waterproof coating market, Covestro has launched a series of water-based polyurethane dispersion (PUD) raw materials. Among them, the newly developed Bayhydrol® UH 2895 fully combines environmental protection and high performance. The waterproof coating solution developed based on this product has an ultra-low water absorption rate of less than 5%, which can effectively resist leakage; a high resilience greater than 80% has an excellent crack bridging effect when facing micro cracks in the building base; When the film is immersed in water for a long time, it can maintain excellent mechanical properties; in addition, this new solution has excellent low-temperature flexibility, and the paint film will not crack in half at a low temperature of -35 ̊C, and it will still protect the building in the face of severe winter.

In the automotive sector, Covestro's waterborne polyurethane automotive refinish primer solution can effectively reduce the volatile organic compound (VOC) emissions per unit spray area by 80% compared to traditional solvent-based solutions. Among them, the one-component waterborne polyurethane Bayhydrol® UH 2110 paint solution developed and produced locally by Covestro further improves the wet film color matching and pigment wetting performance, and fully displays the pigment hue. This solution greatly improves the hardness of the paint film and the early polishability, and further improves the construction efficiency of water-based automotive refinishing paint. In addition, the color is stable and lasting, and the metal texture of the paint film is better.

In the field of consumer electronics, Covestro released a new polyurethane water-based dispersion Bayhydrol® UH 2898 paint solution to meet the needs of coating companies for environmental protection and sustainable development solutions, and to promote the development of water-based coatings for consumer electronics plastic parts. This scheme has excellent appearance, high hardness and good water resistance, and is especially suitable for the preparation of metallic paints. At the same time, the scheme has good compatibility with polyurethane topcoats and UV curing topcoats.

In the textile sector, Covestro is committed to providing innovative alternative raw materials to promote the development of circular economy. For example, the polyurethane dispersion (PUD) series products produced by using some of Covestro's bio-based polyurethane dispersion technology can help manufacturers produce coated fabrics in a more sustainable manner, reducing carbon footprint, and at the same time their performance is comparable to the use of traditional materials The products are comparable. At present, a product in this series with a renewable resource content of about 50% has been applied to some notebook covers of the notebook manufacturer Moleskine, bringing comfort and high performance while helping sustainable development. This product belongs to Covestro's INSQIN® textile coating technology and can be widely used in various textile coatings.

Products continue to be upgraded, localized and deeply cultivated in the Chinese market. In addition, as part of the company's coating and adhesive solutions, the ultra series of high-performance curing agent products launched by Coase Innovation have further improved the industrial hygiene standards and improved the safety of production and construction sites. Sexual escort. The residual monomer content of ultra series curing agents can be reduced to less than 0.1%, and the product performance is equivalent to the original product. It can be widely used in many fields without reducing product quality, so that it can be directly used in most applications. Switch.

Since this year, Covestro has substantially realized local production of a variety of imported products including water-based and solvent-based special curing agents. In the future, Covestro expects to further strengthen R&D and innovation capabilities, promote localization, to meet the changing needs of the Chinese market, and to explore more possibilities for sustainable development in the future.Editor/Xing Wentao