Use of polythioureas to prevent or reduce the crustforming of PVC polymerisation reactors.
摘要
<p>Polythioureas of general formula (A): (NH-R-NH-CS)n in which R denotes an aromatic group substituted by at least one sulphonic group and n an integer between 3 and 300.</p>
申请公布号
EP0343705(A1)
申请公布日期
1989.11.29
申请号
EP19890201196
申请日期
1989.05.12
申请人
SOLVAY & CIE (SOCIETE ANONYME)
发明人
WALRAEVENS, RENE;COISNE, JEAN-MARC;STREBELLE, MICHEL
