发明名称 Calcium treatment of alkyl-tin stabilizers
摘要 An alkyl-tin stabilizer composition is treated with a calcium compound to reduce the carboxylate content level of the stabilizer.
申请公布号 US9227989(B2) 申请公布日期 2016.01.05
申请号 US201414516615 申请日期 2014.10.17
申请人 Royal Group, Inc. 发明人 Chambers Scott;Achiluzzi Davide;Turnbull Chris;Jankowski Anna
分类号 C07F7/22 主分类号 C07F7/22
代理机构 Hunton & Williams, LLP 代理人 Hunton & Williams, LLP
主权项 1. A method comprising reacting an alkyl-tin stabilizer composition having a first level of carboxylate content with a calcium compound, filtering treated stabilizer composition and collecting filtered stabilizer composition with a second level of carboxylate content that is lower than the first level of carboxylate content.
地址 Atlanta GA US