-
1.Continuous process for the extraction of monomers and oligomers from highly polymerized caprolactam granules 失效
Title translation: 从高度聚合的己内酰胺颗粒中提取单体和低聚物的连续方法公开(公告)号:US3374207A
公开(公告)日:1968-03-19
申请号:US41228264
申请日:1964-11-12
Applicant: INVENTA AG
Inventor: KASPAR RYFFEL , WALTER ZEHNDER
IPC: C08G69/46
CPC classification number: C08G69/46
-
2.
公开(公告)号:US3192265A
公开(公告)日:1965-06-29
申请号:US12534161
申请日:1961-07-20
Applicant: INVENTA AG
Inventor: WALTER ZEHUDER , KASPAR RYFFEL
IPC: C07D493/08
CPC classification number: C07D493/08
-
3.Process for the continuous production of polyamide fibers and ribbons 失效
Title translation: 连续生产聚酰胺纤维和丝带的工艺公开(公告)号:US3047541A
公开(公告)日:1962-07-31
申请号:US75326658
申请日:1958-08-05
Applicant: INVENTA AG
Inventor: KASPAR RYFFEL , ERNST SCHWEIZER
CPC classification number: C08G69/16 , D01F6/60 , Y10S264/56
-
-