Clean, safe, fast – More and more users in Asia are taking advantage of Rhenogran®
Wednesday, 22. March 2006 In China and other countries across Asia, demand for higher product quality and efficiency in production is increasing in the wake of greater competition. Awareness of health and environmental issues is also increasing. These trends have led to a sharp rise in the demand for polymer-bound chemicals (Rhenogran®) from Rhein Chemie in Asia, and as a result Rhein Chemie Rheinau GmbH of Mannheim, Germany, is doubling its production capacity of Rhenogran® at its Chinese joint venture Rhein Chemie (Qingdao) Ltd. in Qingdao, China.
Mannheim/Qingdao – In China and other countries across Asia, demand for higher product quality and efficiency in production is increasing in the wake of greater competition. Awareness of health and environmental issues is also increasing. These trends have led to a sharp rise in the demand for polymer-bound chemicals (Rhenogran®) from Rhein Chemie in Asia, and as a result Rhein Chemie Rheinau GmbH of Mannheim, Germany, is doubling its production capacity of Rhenogran® at its Chinese joint venture Rhein Chemie (Qingdao) Ltd. in Qingdao, China.
Rhein Chemie is enjoying worldwide success with its Rhenogran® service concept. The company has over 30 years’ experience as a market leader in the development, production and applications technology of polymer-bound chemicals. A comprehensive portfolio of products, which is constantly adapted to processors’ requirements, has been developed from an initially small range of specialties.
More and more customers are utilizing the processing and economic advantages and environmentally friendly properties of Rhenogran. Using powdered chemicals often causes problems, particularly if they are hazardous or have poor dispersibility. Dust and odor generation can lead to major health problems, inadequate flow properties create difficulties in metering, and lack of homogeneous distribution at higher mixing temperatures mean longer mixing times. The result is off-spec batches and loss of quality, leading to lower production performance and increased manufacturing costs.
Rhenogran® offers processors a solution to all these problems at the same time. The active ingredients can be optimally utilized by combining selected, high-quality chemicals with an ideal binder system and special process know-how. The viscosity is matched to the processing so that dispersion is very rapid for virtually all rubber mixtures, and the granulate form makes metering and incorporating the product very easy. Dust-free binding of the active ingredients is very important for health and environmental protection, as it safeguards man and the environment from toxic rubber chemicals. The workplace remains clean and a number of safety measures can be avoided.
The uniform active ingredient content – mostly 80 percent concentration – and the universal use of a polymer binder based on EPDM/EVA every time mean correct metering. The polymer binder and dispersants are adapted to provide compatibility with all common elastomers and therefore ensure the quality of the vulcanizates.
Another factor in the high Rhenogran® quality is a proprietary mesh screening process to eliminate oversized particles from the compound. This process is now standard at all Rhein Chemie production facilities worldwide. Rhenogran® mixtures are fine-filtered again before granulation, and this complex process filters out even the smallest residues from the mixture.
A major factor is quality control. A range of tests and specifically developed test methods ensure high quality.
Producers of technical rubber goods for the automotive and engineering industries use the full Rhenogran® range of accelerators, antioxidants, metal oxides and crosslinking agents. In foamed rubber articles, for example, the very fine, homogeneous distribution of the polymer-bound chemicals is a benefit because there are no residual powder agglomerates, which could lead to defects and an increase in the scrap rate.
Polymer-bound products are therefore of particular interest to the tire industry because they mean a significant reduction in dispersion time. Rhenogran® Hexa-80, Resorcin -80, ZnO-80, various accelerators and crosslinking chemicals such as the class of dithioate and polymer-bound IS sulfur products are used here.
Rhenogran® MBTS, MBT, TBzTD, S, ZnO and specially formulated polymer-bound dithioates are essential products for manufacturers in the footwear industry for the production of high-quality products where again homogeneous, rapid dispersion brings an improvement in mix times and mix uniformity. These manufacturers are also continuously looking for improvements in environmental protection and workshop hygiene. The manufacturers of shoe soles using these materials take advantage of a high degree of uniformity in terms of color and physical properties.
Rhein Chemie (Qingdao) Ltd. was founded as a joint venture in 1995. Rhein Chemie has a share of 90 percent in the venture. The Qingdao Red Star Chemical Group Co.,Ltd, Qingdao, China, has a share of 10 percent. In Qingdao, Rhein Chemie produces polymer-bound chemicals (Rhenogran®), vulcanization and filler activators, processing promoters and release agents for the rubber industry. The company employs around 150 people at its site in Qingdao.
Rhein Chemie is a chemicals company which has had a successful track record in customized additives and service products stretching back over 100 years. The approximately 970-strong workforce produces and sells products for various sectors of the rubber, lubricant, plastics, and polyurethane industries worldwide. Around 550 staff are employed at headquarters in Mannheim-Rheinau, Germany. The company has subsidiaries and production facilities in Europe, Asia, and North and South America. Rhein Chemie is a wholly owned subsidiary of LANXESS Deutschland GmbH, Leverkusen, Germany.
Mannheim, 22. March 2006
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