公开(公告)号：US3929691A

公开(公告)日：1975-12-30

申请号：US88891369

申请日：1969-12-29

Applicant: RHODIACETA

Inventor： ALLARD PIERRE

IPC: C08G18/00 ,  C08G18/34 ,  C08G73/14

CPC classification number: C08G73/14 ,  C08G18/343

Abstract: The invention provides wet- or dry-spinnable solutions of high molecular weight polyamide-polyimide copolymers derived from an aromatic diisocyanate, an aromatic or heterocyclic diacid, an aromatic anhydride acid and, optionally, an aromatic dianhydride, in polar solvents such as N-methylpyrrolidone.

Abstract translation: 本发明提供在极性溶剂如N-甲基吡咯烷酮中衍生自芳族二异氰酸酯，芳族或杂环二酸，芳族酸酐和任选的芳族二酐的高分子量聚酰胺 - 聚酰亚胺共聚物的湿 - 或干 - 可纺丝溶液 。

公开(公告)号：US3687776A

公开(公告)日：1972-08-29

申请号：US3687776D

申请日：1969-11-24

Applicant: RHODIACETA

Inventor： ALLARD PIERRE ,  DUMAS VICTOR

IPC: B32B17/00 ,  B29C70/16 ,  B29C70/88 ,  B32B27/02 ,  B32B27/34 ,  C09J5/06

CPC classification number: B29C70/16 ,  B29C70/885 ,  B29K2105/0809 ,  B29K2105/101 ,  B29K2277/00 ,  B29K2279/00 ,  B29K2305/00 ,  B29K2307/00 ,  B29K2307/02 ,  B29K2309/08 ,  B29K2995/0005

Abstract: LAMINATED MATERIALS COMPRISING AT LEAST ONE REINFORCING LAYER PRODUCED FROM A MECHANICALLY-STABLE AND HEAT-RESISTANT YARN, IMPREGNATED WITH A HEAT-STABLE RESIN ARE FLEXIBLE AND HEAT-RESISTANT AND HAVE A HIGH RESISTANCE TO DELAMINATION. THEY ARE MADE BY FORMING AN ASSEMBLY OF ONE OR MORE LAYERS OF REINFORCING YARNS ASSOCIATED WITH A TEXTILE FABRIC CONSTITUTED BY A SOLID HEAT-STABLE POLYMER COMPOSITION, WHICH WHEN HEATED PASSES THROUGH A TRANSIENT LIQUID PHASE, AND HEATING THE ASSEMBLY TO A TEMPERATURE AND FOR A TIME SUFFICIENT TO LIQUEFY THE POLYMER COMPOSITION.

公开(公告)号：US3717696A

公开(公告)日：1973-02-20

申请号：US71769671

申请日：1971-02-09

Applicant: RHODIACETA

Inventor： ROCHINA VINCENT ,  ALLARD PIERRE

IPC: D01F6/74 ,  A61H33/10 ,  D01F20060101 ,  D01F6/60 ,  D01F6/76 ,  D01F6/80 ,  D01D5/04 ,  D01F7/04 ,  D02J13/00

CPC classification number: A61H33/10 ,  D01F6/74

Abstract: This invention provides a process for producing polyamide-imide filaments which are heat-stable and have high tensile strength by solvent spinning under specified conditions. In a preferred embodiment the polyamide-imide polymers in solution are extruded into filaments and fibers through a spinneret maintained at a temperature between 60* C. and 180* C. heated at a temperature higher than 160* C. up to about 240* C. at a constant length for 2 to 6 hours, and subsequently drawn at a drawing ratio of at least 3:1 at a temperature generally in the range of about 220* C. up to about 420* C.

Abstract translation: 本发明提供一种通过特定条件下的溶剂纺丝制备热稳定性和拉伸强度高的聚酰胺 - 酰亚胺长丝的方法。 在优选的实施方案中，将溶液中的聚酰胺 - 酰亚胺聚合物通过保持在60℃至180℃之间的温度的喷丝头挤出成长丝和纤维，在高于160℃至约240℃的温度下加热 在恒定长度下进行2至6小时，然后在通常在约220℃至约420℃的温度下以至少3:1的拉伸比拉伸。

公开(公告)号：US3642715A

公开(公告)日：1972-02-15

申请号：US3642715D

申请日：1969-05-21

Applicant: RHODIACETA

Inventor： ALLARD PIERRE

IPC: C08G18/34 ,  C08G69/32 ,  C08G20/20 ,  C08G51/44

CPC classification number: C08G18/341 ,  C08G69/32 ,  Y10S528/906

Abstract: THE INVENTION TO A PROCESS FOR THE PREPARATION OF SOLUTIONS OF AROMATIC POLYAMIDES WHICH COMPRISES REACTING ONE OR MORE DICARBOXYLIC ACIDS WITH ONE OR MORE DIISOCYANATES, AT LEAST ONE OF WHICH IS AROMATIC, IN A POLAR LIQUID AT A TEMPERATURE WHICH IS RAISED PROGRESSIVELY FROM A LOWER TEMPERATURE SUPERIOR TO AMBIENT TO A HIGHER TEMPERATURE OF 120*C.