公开(公告)号：BR8404125A

公开(公告)日：1985-07-16

申请号：BR8404125

申请日：1984-08-17

Applicant: STAMICARBON B V SUBSIDIARIA LI

Inventor： GEENEN ALBERT ARNOLD VAN ,  BONGERS JOZEF JOHANNES MARIA ,  LOOS JOZEF LAMBERTUS MARIA VAN ,  VRINSSEN CORNELIS HENDRIKUS

IPC: C08G69/14 ,  C08G18/80 ,  C08G65/32 ,  C08G65/333 ,  C08G69/00 ,  C08G69/18 ,  C08G69/20 ,  C08G69/40 ,  C07D223/06 ,  C08G81/00

Abstract: The invention concerns an N-substituted carbamoyl-lactam compound characterized by the formula:where in the formula:- R is a polyol radical from a polyol having the formula R-(OH) xi , where xi is an integer ≥ 2- R' is an alkyl, whether or not cyclic aralkyl, alkaryl or aryl group, xi is an integer > 0,- (-L) is an unopened lactam ring and- (-L-) is an opened lactam block. The compounds are highly suited for use as activators in preparing nylon block copolymers.

公开(公告)号：BR8406282A

公开(公告)日：1985-10-01

申请号：BR8406282

申请日：1984-12-07

Applicant: STAMICARBON B V SUBSIDIARIA LI

Inventor： SCHELLEKENS RONALD MICHAEL ALE ,  LEMSTRA PIETER JAN

IPC: B29D7/00 ,  D01D5/00 ,  D01F6/18 ,  D01F6/38 ,  D01F6/54 ,  D01D5/08

Abstract: Polyacrylonitrile articles, such as filaments, tapes and films, having high tensile strength and modulus, and prepared by adding to a solution of polyacrilontrile with a molecular weight above 3 x 10 5 , pref. above 5 x 10 5 , a minor amount of a bivalent metal compound, converting the solution into a solvent containing article, cooling this article to form a gelarticle, removing from this gel the solvent and metal compound, and stretching the resulting article at increased temperature.With this process filaments with a tensile strength above 1.2 GPa and a modulus above 16 GPa can be obtained.