Process for the imidization of copolymers of maleic anhydride with vinyl-aromatic monomers
摘要
The invention relates to a process for the imidization of copolymers of maleic anhydride and vinyl-aromatic monomers using urea or an urea derivative as the imidizing agent.
申请公布号
US4889896(A)
申请公布日期
1989.12.26
申请号
US19880289824
申请日期
1988.12.27
申请人
MONTEDIPE S.P.A.
发明人
CANOVA, LUCIANO;GIANNINI, UMBERTO;ALBIZZATI, ENRICO;BORGHI, ITALO;PROTO, ANTONIO