Cologne – Adiprene C930, a unique Low Free MDI based cast urethane from specialty chemicals company LANXESS, has just proven as an appropriate material for being processed via injection molding.

The Korean company Autox developed a production process that allows cast polyurethane to be injection molded. This innovation brings a new perspective to the cast polyurethane (CPU) world as it combines the processing advantages of injection molding along with the properties of cast urethane. Autox has recently launched a new vibrating screen for the mining industry which is made from this Adiprene cast PU prepolymer by injection molding.

Advantages of injection molding

One of the benefits in working with injection molding is the high production output rate that makes the process highly efficient and cost-effective. In a limited amount of time and with a single mold, more parts can be manufactured. Cost efficiency is also influenced by labor cost which is typically lower than in pour casting. As an example, the current production time of an injection molded mesh screen is five minutes, while the pour casting process will normally take 35 minutes to manufacture the screen. Adiprene LF (Low Free) prepolymer delivers improved industrial hygiene, along with ease of processing. It offers a perfect fit with the injection molding process, as the viscosity is lower than of a conventional prepolymer.

Increased life span and screening efficiency

Vibrating screen mesh is a highly demanding application needed to withstand challenging mining operation conditions. The Adiprene C930 mining screen offers outstanding abrasion resistance and rebounding properties, improving the lifetime and screening efficiency of the part. Results of this caprolactone based technology have been supported by field testing, it has been proven that the lifetime of the screen can be up to three times longer than the market high quality reference. This unique development allows less downtime in the mine operation leading to maintenance savings.

Improved waste management

Autox’ new development allows the processing of cast PU prepolymers, thus the molded part presents greater performance. Complex shape parts are easier to mold as the pressure needed for the injection allows the flow to get into the part details. The injection process answers one of the main concerns of the industry: waste management, as it also allows for better quality consistency, leading to less trimmings but also less waste from reduced scrap.

While Autox and LANXESS with its Adiprene C930 source material have proven that great achievement can be made on injection molding polyurethane for mining screen, both companies are confident that others applications can also benefit from this development.



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.


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.

Autox is a Korean company established in 1983, Autox is specialized in rubber spare parts especially for construction equipment. Core business is providing solutions for emerging challenges and the application of ever-evolving technologies. Autox currently exports 63 countries and 259 companies.