申请人:Barnes-Hind, Inc.
公开号:EP0179476A1
公开(公告)日:1986-04-30
Compounds of the formula
or
wherein
n is 0 or 1;
R, and R2 are independently H, -OH, alkyl,
X is
or
; and
R3 is H, -OH, -COO- (alkyl), alkyl, or alkoxy, provided that the inhibitor has at least three rings, are effective inhibitors of the polymerization of vinylic monomers, particularly acrylic monomers. The inhibitors are easily, efficiently, and thoroughly removed from the solution with the monomer by contact with charcoal.
式 或 的化合物 其中 n 为 0 或 1;R 和 R2 独立地为 H、-OH、烷基,X 为 或 ;R3 为 H、-OH、-COO-(烷基)、烷基或烷氧基,条件是该抑制剂至少有三个环,它们是乙烯基单体,特别是丙烯酸单体聚合的有效抑制剂。 通过与木炭接触,可轻松、高效、彻底地从与单体的溶液中去除抑制剂。