[China Packaging Network News] Evonik Industries has recently developed two new members for the Dynapol family of middle molecular and high molecular weight polyesters for packaging and coil coatings, respectively DynapolL907 and DynapolL914. Both have good Stability and protection. The company claims that the polymer has achieved the best results in bactericidal tests with metal coupons and spicy and highly-stained foods.
Newly developed high molecular weight polyesters can reasonably replace polymers containing bisphenol A (BPA). In January 2015, despite the conclusion that BPA poses no risk to the health of people of any age, the European Food Safety Authority (EFSA) reduced the daily allowable BPA intake to 4 μg/kg body weight. On January 1, 2015, France banned the use of bisphenol A in packages that are in direct contact with food. Both Dynapol 907L and Dynapol L914 are classified as "BPA non-intentional" substances.
Evonik's Dynapol products are specifically used in food contact applications. These polyester resins are mainly used in the production of metal packaging, suitable for food cans and meet the technical requirements of the market. When combined with Vestanat B1186A, a cross-linking agent approved by the US Food and Drug Administration (FDA), it is possible to formulate coatings with both flexibility and chemical stability, as well as meet the high requirements of sterilization tests.