吉化集团公司研究院开发的618抗氧剂（二硬脂基季戊四醇二亚磷酸酯）生产技术于1998年4月3日通过吉林省科委组织的技术鉴定。618抗氧剂是一种性能优异的新型含磷抗氧剂，主要用于聚乙烯、聚苯乙烯、聚丙烯和ABS树脂等。目前我国尚无此产品，国内ABS、聚烯烃等所用的618抗氧剂都 The production technology of 618 antioxidant (distearyl pentaerythritol diphosphite) developed by the research institute of Jilin Chemical Group was passed on April 3, 1998 by the technology appraisal organized by Jilin Provincial Science and Technology Commission. 618 Antioxidant is a new type of phosphorus-containing antioxidant with excellent performance. It is mainly used for polyethylene, polystyrene, polypropylene and ABS resin. At present, there is no such product in China. The 618 antioxidants used in domestic ABS and polyolefins are all