Title:
【発明の名称】不飽和単量体の重合抑制
Document Type and Number:
Japanese Patent JP2003520259
Kind Code:
A
Abstract:
Disclosed herein is a method for inhibiting the premature polymerization of ethylenically unsaturated monomers comprising adding to said monomers an effective amount of:A) at least one stable hindered nitroxyl compound having the structural formula: wherein R1 and R4 are independently selected from the group consisting of hydrogen, alkyl, and heteroatom-substituted alkyl and R2 and R3 are independently selected from the group consisting of alkyl and heteroatom-substituted alkyl; and X1 and X2 (1) are independently selected from the group consisting of halogen, cyano, COOR7, -S-COR7, -OCOR7, (wherein R7 is alkyl of 1 to 15 carbon atoms, or (2) taken together, form a ring structure with the nitrogen; andB) at least one phenylenediamine, and, optionally,C) at least one nitroaromatic compound.
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Inventors:
Beneige, Bridget
Eisenstein, Andrew, Jay
Eisenstein, Andrew, Jay
Application Number:
JP2001553244A
Publication Date:
July 02, 2003
Filing Date:
December 05, 2000
Export Citation:
Assignee:
Uniroyal Chemical Company, Inc.
International Classes:
C07B63/04; C07C7/20; C07C15/44; C07C15/46; (IPC1-7): C07C7/20; C07C15/44; C07C15/46
Attorney, Agent or Firm:
Akira Asamura (3 outside)