公开(公告)号：US5185428A

公开(公告)日：1993-02-09

申请号：US718940

申请日：1991-06-21

Applicant: James A. Hammond, Jr. ,  David N. Marks

Inventor： James A. Hammond, Jr. ,  David N. Marks

IPC: C08G69/26

CPC classification number: C08G69/265

Abstract: A copolyadipamide consisting essentially of between about 60 and about 99.5 mole percent hexamethyleneadipamide units and between about 0.5 and 40 mole percent pentamethyleneadipamide units, the copolyamide having an RV greater than about 25, and a melting point of greater than about 220.degree. C.

Abstract translation: 基本上由约60-约99.5摩尔％的六亚甲基己二酰胺单元和约0.5至40摩尔％的五亚甲基己二酰胺单元组成的共聚二酰苯胺，共聚酰胺的RV大于约25，熔点大于约220℃。

公开(公告)号：US06509439B1

公开(公告)日：2003-01-21

申请号：US09549330

申请日：2000-04-14

Applicant: Richard Allen Hayes ,  David N Marks ,  Maria Van Eijndhoven ,  Hari Babu Sunkara

Inventor： Richard Allen Hayes ,  David N Marks ,  Maria Van Eijndhoven ,  Hari Babu Sunkara

IPC: C08G6900

CPC classification number: C08G69/04 ,  C08G69/28

Abstract: A process for producing polyamides from dinitriles and diamines in a continuous reaction using subsequent heating steps. In particular, the process involves contacting a dinitrile, a diamine, water, and optionally a catalyst to form a reaction mixture; heating the reaction mixture to a first elevated temperature of between about 180 to about 240° C., maintaining said temperature for about 0.10 to about 20 hours, and optionally controlling the pressure in this heating step by venting; heating the reaction mixture to a second elevated temperature of between about 250 to about 350° C., adding water to the reaction mixture before or after the second elevated temperature is reached, maintaining the pressure in the second heating step above atmospheric pressure by venting at least some of the water, and maintaining the second elevated temperature for a period of about 0.10 to about 10 hours; and recovering the polyamide.

Abstract translation: 使用随后的加热步骤在连续反应中由二腈和二胺生产聚酰胺的方法。 特别地，该方法包括使二腈，二胺，水和任选的催化剂接触以形成反应混合物; 将反应混合物加热至约180至约240℃的第一升高温度，将所述温度保持约0.10至约20小时，并且可选地通过排气控制该加热步骤中的压力; 将反应混合物加热至约250至约350℃的第二升高温度，在达到第二升高温度之前或之后向反应混合物中加入水，将第二加热步骤中的压力通过排气在 至少一些水，并保持第二升高温度约0.10至约10小时; 并回收聚酰胺。

公开(公告)号：US06437089B1

公开(公告)日：2002-08-20

申请号：US09872298

申请日：2001-06-01

Applicant: Jeffrey D. Cohen ,  Stuart B. Fergusson ,  Ernest Keith Marchildon ,  David N. Marks ,  Ahmet Turgut Mutel

Inventor： Jeffrey D. Cohen ,  Stuart B. Fergusson ,  Ernest Keith Marchildon ,  David N. Marks ,  Ahmet Turgut Mutel

IPC: C08G6908

CPC classification number: C08G69/16 ,  C08G69/04 ,  C08G69/08 ,  Y02P20/127

Abstract: Process for making nylon 6 in which a feed stream containing a major portion of caprolactam and/or nylon 6 prepolymer and a minor portion of aminocapronitrile is fed to a multistage reactive distillation column in which the feed stream flows countercurrently to a steam stream.

Abstract translation: 制备尼龙6的方法，其中将含有主要部分己内酰胺和/或尼龙6预聚物和少量氨基己腈的进料流进料到多级反应蒸馏塔中，其中进料流逆流流向蒸汽流。

公开(公告)号：US5110900A

公开(公告)日：1992-05-05

申请号：US718939

申请日：1991-06-21

Applicant: James A. Hammond, Jr. ,  David N. Marks

Inventor： James A. Hammond, Jr. ,  David N. Marks

IPC: C08G69/26

CPC classification number: C08G69/265

Abstract: A copolyadipamide consisting essentially of between about 60 and about 99.5 mole percent hexamethyleneadipamide units and between about 0.5 and 40 mole percent ethyltetramethyleneadipamide units, the copolyamide having an RV greater than about 5, and a melting point of greater than about 220.degree. C.

Abstract translation: 基本上由约60-约99.5摩尔％六亚甲基己二酰胺单元和约0.5至40摩尔％乙基四亚甲基己二酰胺单元组成的共聚二酰苯胺，共聚酰胺的RV大于约5，熔点大于约220℃。

公开(公告)号：US5109104A

公开(公告)日：1992-04-28

申请号：US591191

申请日：1990-10-04

Applicant: David N. Marks

Inventor： David N. Marks

IPC: C08G69/00 ,  C08G69/04 ,  C08G69/16

CPC classification number: C08G69/00 ,  C08G69/04 ,  C08G69/16

Abstract: High quality polyamides are prepared from a mixture of an omega-aminonitrile, an oxygenated phosphorous catalyst, and water. When the reactor temperature reaches about 200 degrees to about 260 degrees C. continuously adding water, and continuously removing water vapor and ammonia until 15 to 75 grams of water have been added per 100 grams of omega-aminonitile, and then stopping the water addition and continuing the reaction until a high molecular weight polyamide is obtained.

公开(公告)号：US5185427A

公开(公告)日：1993-02-09

申请号：US752942

申请日：1991-08-20

Applicant: David N. Marks

Inventor： David N. Marks

IPC: C08G69/04

CPC classification number: C08G69/04

Abstract: Copolyamides are prepared by the non-catalytic polymerization of an omega-aminonitrile with a mixture of a diamine and a dicarboxylic acid. Not more than 40% by weight of the product is derived from the omega-aminonitrile.

Abstract translation: 共聚酰胺通过ω-氨基腈与二胺和二羧酸的混合物的非催化聚合制备。 不超过40重量％的产品来源于ω-氨基腈。

公开(公告)号：US06476181B1

公开(公告)日：2002-11-05

申请号：US09872302

申请日：2001-06-01

Applicant: Albert W. Alsop ,  David N. Marks

Inventor： Albert W. Alsop ,  David N. Marks

IPC: C08G6946

CPC classification number: C08G69/16 ,  C08G69/06 ,  C08G69/46

Abstract: Process for increasing the molecular weight of nylon 6 while reducing its content of caprolactam and other volatiles by a two-staged heating process.

Abstract translation: 通过两阶段加热方法降低其己内酰胺和其它挥发物的含量同时提高尼龙6的分子量的方法。

公开(公告)号：US5292857A

公开(公告)日：1994-03-08

申请号：US016948

申请日：1993-02-22

Applicant: David N. Marks

Inventor： David N. Marks

IPC: C08G69/00 ,  C08G69/26 ,  C08G69/28 ,  C08G69/36

CPC classification number: C08G69/28 ,  C08G69/265 ,  C08G69/36

Abstract: Nylon 66 polymer is prepared by condensation of a reaction mixture containing 1,8-diazacyclotetradecane-2,7-dione and nylon 66 salt and/or caprolactam.

Abstract translation: 通过含有1,8-二氮杂环十四烷-2,7-二酮和尼龙66盐和/或己内酰胺的反应混合物的缩合制备尼龙66聚合物。

公开(公告)号：US5270437A

公开(公告)日：1993-12-14

申请号：US979006

申请日：1992-11-13

Applicant: David N. Marks

Inventor： David N. Marks

IPC: C08G69/26 ,  C08G69/28

CPC classification number: C08G69/28 ,  C08G69/265

Abstract: Polymers of aromatic diacids and 2-methylpentamethylenediamine are prepared in the presence of formic acid. The formic acid reduces the tendency of the 2-methylpentamethylenediamine to cyclize.

Abstract translation: 在甲酸存在下制备芳族二酸和2-甲基戊二胺的聚合物。 甲酸降低了2-甲基戊二胺的环化趋势。

公开(公告)号：US5162491A

公开(公告)日：1992-11-10

申请号：US718941

申请日：1991-06-21

Applicant: James A. Hammond, Jr. ,  David N. Marks

Inventor： James A. Hammond, Jr. ,  David N. Marks

IPC: C08G69/26

CPC classification number: C08G69/265

Abstract: A copolyadiapamide consisting essentially of between about 60 and about 99.5 mole percent hexamethyleneadipamide units and between about 0.5 and 40 mole percent trimethylhexamethyleneadipamide units, the copolyamide having an RV greater than about 25, and a melting point of greater than about 220.degree. C.

Abstract translation: 基本上由约60-约99.5摩尔％的六亚甲基己二酰胺单元和约0.5至40摩尔％的三甲基六亚甲基己二酰胺单元组成的共聚酰亚胺酰胺，共聚酰胺的RV大于约25，熔点大于约220℃。