申请人:Atochem North America, Inc.
公开号:US05030679A1
公开(公告)日:1991-07-09
Organic sulfide antioxidants useful for stabilizing polyolefins against oxidative and thermal degradation during processing and use represented by Formula I: ##STR1## wherein n is an integer of 2 to 15; R is a substituted or unsubstituted alkyl group of 2 to 30 carbons, a substituted or unsubstituted cycloalkyl group of 5 to 20 carbons a substituted or unsubstituted alkyl group of 2 to 30 carbons where any of up to 6 carbon atoms are replaced with an O or S heteroatom, a substituted or unsubstituted cycloalkyl group of 5 to 20 carbons where any of up to 6 carbon atoms are replaced with an O or S heteroatom, with the proviso that the heteroatoms must be separated from each other and from the portion of the compound to which the R group is bonded by at least one carbon atom, the substituents for R being --OH, --SR.sup.4 or -- OR.sup.4, wherein R.sup.4 is an alkyl group of 1 to 30 carbons or a cycloalkyl group of 5 to 20 carbons; R.sup.1 and R.sup.2 are independently H or an alkyl group of 1 to 4 carbons; and R.sup.3 is an alkyl group of 1 to 24 carbons or a cycloalkyl group of 5 to 20 carbons.
有机硫化物抗氧化剂,适用于通过化学式I表示的聚烯烃在加工和使用期间稳定防止氧化和热降解,其中n是2到15的整数;R是取代或未取代的2到30个碳的烷基,5到20个碳的取代或未取代的环烷基,其中最多可以用O或S杂原子替换最多6个碳原子的2到30个碳的取代或未取代的烷基,或最多可以用O或S杂原子替换最多6个碳原子的5到20个碳的取代或未取代的环烷基,但必须保证杂原子必须与R基结合的化合物的部分之间以及彼此分开至少一个碳原子,R的取代基是-OH,-SR.sup.4或-OR.sup.4,其中R.sup.4是1到30个碳的烷基或5到20个碳的环烷基;R.sup.1和R.sup.2分别是H或1到4个碳的烷基;R.sup.3是1到24个碳的烷基或5到20个碳的环烷基。