公开(公告)号：EP4458831A1

公开(公告)日：2024-11-06

申请号：EP23461573.0

申请日：2023-05-05

申请人： PCC ROKITA Spolka Akcyjna

发明人： SWIST, Agnieszka

IPC分类号： C07F9/142

摘要： The invention relates to a method of transesterification of phosphites using alcohol in the presence of a fluoride alkaline catalyst allowing to obtain liquid organic phosphites with ultra-low phenol content and low volatility. Trialkyl phosphites obtainable by the method of the present invention, are used e.g. as additives to lubricants or as auxiliary stabilisers in the processing of various plastics, including those based on polyurethane and poly(vinyl chloride).

公开(公告)号：EP4458832A1

公开(公告)日：2024-11-06

申请号：EP23461574.8

申请日：2023-05-05

申请人： PCC ROKITA Spolka Akcyjna

发明人： SWIST, Agnieszka ,  DEMIANIUK, Adrianna

IPC分类号： C07F9/142 ,  C07F9/145

摘要： The invention relates to a method for phosphite transesterification in the presence of a fluoride alkaline catalyst using aliphatic alcohols, allowing for a transesterification product to be obtained with a platinum-cobalt colour in the range of 0 to 150, as determined by a visual method according to ASTM D1209-05(2019). Phosphites, obtained by the inventive method, are used in plastics processing as secondary stabilisers, ensuring high thermal and process stability of plastics, mainly those based on poly(vinyl chloride).