Physical blends of stabilizers with different stabilization mechanisms are the state of the art today. The overall effect of two stabilizers is better than what would be expected based on the sum of effects of each component alone.
Phenolic antioxidants are radical scavengers which prevent thermal degradation of many organic and polymeric materials. Their effectiveness increases when used in combination with phosphites, thioethers and light stabilizers.
Phosphites are efficient decomposers of hydroperoxides that are formed during the autooxidation of polymers. Phosphites are especially used in melt processing where they are added in blends with hindered phenolic anti-oxidants. Such combinations are more effective than hindered phenol alone.
Sulfur-containing antioxidants, also referred to as thioethers, react with and decompose polymer peroxide to inert substances. These so-called secondary anti-oxidants exhibit a remarkable synergism in combination with hindered phenols to offer additional long term stability.
ADEKA PALMAROLE SAS was formed in September 2000 as a joint venture between the ADEKA Corporation of Japan (90 %) and the PALMAROLE Group (10 %). With headquarters situated in Alsace, close to Mulhouse-Basel airport, ADEKA PALMAROLE offers the extensive range of products of ADEKA Polymer Additives throughout Europe, the Middle East and Africa. Complementary to the global ADEKA products (ADK STAB, ADK CIZER) ADEKA PALMAROLE offers local polymer additives under the PALMAROLE trade name and, also under the PALMAROLE trade name, a range of additives formulations mostly produced at our plant in Rousset in the South of France. This plant also produces engineering thermoplastic compounds mostly on a toll compounding basis. ADEKA is a major chemicals and food company with a worldwide turnover in excess of €1 billion per annum of which their polymer additives division forms a strategic and important business. ADEKA is a global company with polymer additives business organisations in Japan, Korea, Taiwan, Thailand, Singapore, China, India, USA and Europe.
ADEKA maintains high quality and production standards together with a dedication to customer service. All ADEKA plants are certified to both ISO 9001 and ISO 14001 quality standards.
ADEKA is committed to maintain its well-earned reputation for bringing a succession of innovative and successful new polymer additives to the world market.