申请人:AMERICAN CYANAMID COMPANY
公开号:EP0214507A2
公开(公告)日:1987-03-18
A new and improved environmental chemicals resistant light stabilizer package for thermoplastic substrates is disclosed. The stabilizer package comprises a specific oligomeric hindered amine light stabilizer with an ultra-violet absorber in specified weight ratios. The stabilizer package is useful for stabilizing thermoplastic shaped articles intended for outdoor use in areas where environmental chemicals such as agricultural chemicals, pool chemicals and the like are employed. In a preferred embodiment, a new and improved substantially colorless, light stable greenhouse film is provided which exhibits good weatherability and retention of physical properties even after repeated exposure to, for example, pesticides, herbicides and the like.
本发明公开了一种用于热塑性基材的新型改进型耐环境化学品光稳定剂复合材料。该稳定剂包由特定低聚受阻胺光稳定剂和紫外线吸收剂按特定重量比组成。该稳定剂复合剂适用于在使用农用化学品、泳池化学品等环境化学品的地区稳定用于室外的热塑性成型物品。在一个优选的实施方案中,提供了一种新型和改进的基本无色、光稳定的温室薄膜,即使在反复接触杀虫剂、除草剂等物质后,仍能表现出良好的耐候性和物理性能保持性。