International Plastics News for Asia

100 years of synthetic rubber testing center


What would synthetic rubbers be without experienced application technicians The development of the new polymer family into a mature material started in mid-1911, or 100 years ago, with the establishment of the first synthetic rubber testing laboratory at the birthplace of modern high-performance rubber, Farbenfabriken vorm. Friedrich Bayer & Co. Wuppertal -Elberfeld, Germany. Later it was relocated to Leverkusen and is now a modern service facility where elastomer experts develop top rubber blends for customers around the world active in all areas of the rubber industry.

A link was recently established between this institution and its counterpart in Qingdao, China, enabling LANXESS synthetic rubber experts to further shorten the time to market for their partners in the rubber industry. Thus, the laboratory made an important step for the future.

LANXESS has established a link with its second testing center in Qingdao and its technical service centers all over the world. This enabled its application engineers to have virtually instant access to all measurement and analysis results, and eventually a further reduction in the time customers have to wait to find out whether or not their blend ideas have been successful.

Historically, one man’s name closely associated with the foundation of the first “rubber testing center” in Elberfeld is Dr. Kurt Gottlob. Born in 1881, Gottlob had already developed a process for obtaining what was to become a key basic material for synthetic rubber – isoprene – from natural sources such as turpentine oil and had even attempted to produce synthetic rubbers himself. Although Fritz Hofmann beat him to the punch in achieving this milestone, his work naturally made him an ideal colleague for the inventor of synthetic rubber.

Immediately after joining the company, Gottlob set up a rubber testing center to examine the vulcanization properties of the material samples produced by Fritz Hofmann and his team. He discovered that Hofmann’s methyl rubber absorbed less sulfur than natural rubber and vulcanized better in the presence of organic bases – and he is credited with the invention of the first vulcanization accelerator.

From 1916, Gottlob’s work gradually moved away from research into basic rubber towards application technology as we know it today. During this time, Gottlob devised instructions and blend formulas to turn the new methyl rubber into useable technical rubber products, such as balloon materials, solid rubber tires and hard rubber for the rubber industry.

Kurt Gottlob died in 1925 at the age of 44. However, his work lives on to this day. At times, more than 400 people worked in the testing laboratories on the first floor of the Leverkusen chemical park’s famous K10 “Rubber House”, testing new rubber samples from the reactors of the large German synthetic rubber manufacturer.