公开(公告)号：US3595872A

公开(公告)日：1971-07-27

申请号：US3595872D

申请日：1969-10-01

Applicant: ALLIED CHEM

Inventor： PIETRUSZA EDWARD W ,  PENDERSEN JACK R

IPC: C07D263/62 ,  C07D521/00 ,  C08G69/20 ,  C07D85/48

CPC classification number: C07D263/62 ,  C07D231/12 ,  C07D233/56 ,  C07D249/08 ,  C08G69/20

Abstract: THIS SPECIFICATION DISCLOSES NOVEL BENZOXAZOLYL DERIVATIVES SELECTED FROM THE GROUP CONSISTING OF 1-(2-BENZOXAZOLYL)BENZOTRIAXZOLINONE- 2, AND 1-(2''-BENZOXAZOLBENZOXAZOLYL)BENZOXAZOLINONE - 2, AND 1-(2''-BENZOXAZOLYL)-3,5-DIMETHYLPYRAZOLE. THESE COMPOUNDS ARE EFFECTIVE AS PROMOTERS FOR THE ANIONIC POLYMERIZATION OF LACTAMS, EFFECTING CONVERSION TO HIGH MOLECULAR WEIGHT POLYAMIDES RAPIDLY AT TEMPERATURES BELOW THE POLYMER MELTING POINT.