Process for the hydrolysis of adiponitrile and the production of nylon
6,6 utilizing low catalyst levels
    1.
    发明授权
    Process for the hydrolysis of adiponitrile and the production of nylon 6,6 utilizing low catalyst levels 有权
    用于水解己二腈的方法和利用低催化剂水平生产尼龙6,66

    公开(公告)号:US6084056A

    公开(公告)日:2000-07-04

    申请号:US217799

    申请日:1998-12-22

    IPC分类号: C08G69/04 C08G69/28

    CPC分类号: C08G69/04 C08G69/28

    摘要: A process for the hydrolysis of a dinitrile (e.g., adiponitrile) utilizing from 0.1 to 500 mmoles of catalyst (e.g., a mixture of phosphorous acid and calcium hypophosphite) per mole of the dinitrile and in the presence of from 0.01 to 0.5 moles of a dicarboxylic acid cocatalyst (e.g., adipic acid) followed by addition of a diamine (e.g., hexamethylenediamine) and heating to produce polymerization. Such a process is particularly useful in the production of nylon 6,6 having a low BHMT content and improved melt stability.

    摘要翻译: 使用0.1至500mmol催化剂(例如,亚磷酸和次亚磷酸钙的混合物)/每摩尔二腈水解二腈(例如己二腈)并在0.01至0.5摩尔的 二羧酸助催化剂(如己二酸),然后加入二胺(如六亚甲基二胺)并加热以产生聚合反应。 这种方法在具有低BHMT含量和改进的熔体稳定性的尼龙6,6的生产中特别有用。

    Process for preparation of polyamide from dinitrile and diamine
    2.
    发明授权
    Process for preparation of polyamide from dinitrile and diamine 有权
    从二腈和二胺制备聚酰胺的方法

    公开(公告)号:US6103863A

    公开(公告)日:2000-08-15

    申请号:US217797

    申请日:1998-12-22

    IPC分类号: C08G69/04 C08G69/28

    CPC分类号: C08G69/28 C08G69/04

    摘要: A two-step process for the production of polyamides from .alpha.,.omega.-dinitriles and .alpha.,.omega.-diamines involving the catalytic hydrolysis of the .alpha.,.omega.-dinitrile by addition of water with simultaneous purging of the reactor (i.e., venting of ammonia and water vapor) in the first step followed by polymerization by addition of the .alpha.,.omega.-diamine to the hydrolysate in the second step. Such a process is particularly useful in the production of poly(hexamethylene adipamide), i.e., nylon 6,6, from adiponitrile and hexamethylene diamine using lower catalyst levels during hydrolysis and resulting in reduced levels of bis(hexamethylene)triamine, BHMT, in the polymer.

    摘要翻译: 用于从α,ω-二腈和α,ω-二胺生产聚酰胺的两步法,其涉及通过加入水同时净化反应器来催化水解α,ω-二腈(即,排出氨和 水蒸气),然后通过在第二步中向水解产物中加入α,ω-二胺进行聚合。 这样的方法特别可用于在水解期间使用较低催化剂水平从己二腈和六亚甲基二胺生产聚(己二酰己二胺),即尼龙6,6,并导致双(六亚甲基)三胺BHMT的水平降低 聚合物。

    POLYMER UNDERWATER MELT CUTTER AND PROCESSES ASSOCIATED THEREWITH
    4.
    发明申请
    POLYMER UNDERWATER MELT CUTTER AND PROCESSES ASSOCIATED THEREWITH 审中-公开
    聚合物水下切割机及其相关工艺

    公开(公告)号:US20100102467A1

    公开(公告)日:2010-04-29

    申请号:US12582741

    申请日:2009-10-21

    IPC分类号: B29B9/10

    CPC分类号: B29B9/065

    摘要: In an improved polymer melt cutter a gas is added to the cooling liquid before the cooling liquid enters the cutting chamber, or is added directly through the cutting chamber wall. This forms a cooling liquid/gas mixture in the cutting chamber, which has the advantage of providing easier startups, lower operating costs, and other advantages. Processes associated with the improved polymer melt cutter are also disclosed.

    摘要翻译: 在改进的聚合物熔融切割机中,在冷却液进入切割室之前,将气体加入到冷却液中,或直接通过切割室壁加入。 这在切割室中形成冷却液/气体混合物,这具有提供更容易的启动,降低运行成本和其它优点的优点。 还公开了与改进的聚合物熔体切割机相关的工艺。

    Method for solid phase polymerization
    5.
    发明授权
    Method for solid phase polymerization 失效
    固相聚合方法

    公开(公告)号:US5955569A

    公开(公告)日:1999-09-21

    申请号:US757310

    申请日:1996-11-27

    CPC分类号: C08G69/30 Y02P20/584

    摘要: An improved method for increasing the relative viscosity and molecular weight of a polyamide polymer (such as nylon 6,6, nylon 6, and the like) while in the solid state involving the use of a phosphorus-containing catalyst (such as 2(2'-pyridyl) ethyl phosphonic acid or the like) in combination with an oxygen free gas characterized by a low dew point (typically below 30.degree. C. and preferably below -30.degree. C.). The combination of affording commercial operation at greater through put at lower temperature. Such a process is of particular value during the production of terpolyamide and multipolyamide polymer intended for use in colored nylon fiber manufacture.

    摘要翻译: 在涉及使用含磷催化剂的固体状态(例如2(2))中,提高聚酰胺聚合物(例如尼龙6,6,尼龙6等)的相对粘度和分子量的改进方法 乙基膦酸等)与无氧气体组合,其特征在于低露点(通常低于30℃,优选低于-30℃)。 通过在较低温度下提供商业运作的组合。 在制造用于着色尼龙纤维制造中的三聚酰胺和多聚酰胺聚合物的生产期间,这种方法是特别有价值的。

    PROCESS FOR PREPARING POLYAMIDES COMPRISING FLUOROETHER FUNCTIONALIZED AROMATIC MOIETIES
    6.
    发明申请
    PROCESS FOR PREPARING POLYAMIDES COMPRISING FLUOROETHER FUNCTIONALIZED AROMATIC MOIETIES 失效
    制备包含氟化物官能化芳族化合物的聚酰胺的方法

    公开(公告)号:US20120329976A1

    公开(公告)日:2012-12-27

    申请号:US13166052

    申请日:2011-06-22

    IPC分类号: C08G69/42

    CPC分类号: C08G69/42

    摘要: The invention is directed to a process for preparing polyamide polymers, particularly nylon 6, 6 and nylon 6, comprising fluoroether functionalized aromatic repeat units. In one embodiment, 1,6 diaminohexane, adipic acid, and fluoroether functionalized terephthallic or isophthallic acid or diester are reacted to form a polymer. The polymers so formed are useful for imparting soil resistance to polyamides, particularly in the form of films, molded parts, fibers, fabrics, and carpets.

    摘要翻译: 本发明涉及一种制备聚酰胺聚合物,特别是尼龙6和尼龙6的方法,其包括氟醚官能化芳族重复单元。 在一个实施方案中,使1,6二氨基己烷,己二酸和氟代醚官能化的对苯二酚或异酞酸或二酯反应形成聚合物。 如此形成的聚合物可用于赋予聚酰胺的耐污性,特别是以薄膜,模制件,纤维,织物和地毯的形式。

    Polyamide compositions
    8.
    发明授权
    Polyamide compositions 失效
    聚酰胺组合物

    公开(公告)号:US5639819A

    公开(公告)日:1997-06-17

    申请号:US084246

    申请日:1993-07-09

    CPC分类号: C08G69/265

    摘要: A mouldable reinforced polyamide composition comprising;(a) a polyamide consisting essentially of between about 0.5 and about 99.5 mol. % of aliphatic diamines having 4-12 carbon atoms and a complementary amount of 2-methyl-pentamethylene diamine copolymerized with aliphatic dicarboxylic acids having 6-12 carbon atoms; and(b) a filler in an amount of 0.5 to 200 parts by weight per 100 parts by weight of said polyamide. The polyamide has an RV greater than about 20. Related polyamides, especially in which the acid is 1,12-dodecanedioic acid, are also disclosed. The polyamides may be used in a wide variety of end-uses, including moulding, and exhibit excellent gloss compared with nylon 6,6.

    摘要翻译: PCT No.PCT / CA92 / 00011 Sec。 371日期:1993年7月9日 102(e)日期1993年7月9日PCT提交1992年1月8日PCT公布。 第WO92 / 12194号公报 日期1992年7月23日一种可塑增强聚酰胺组合物,其包含: (a)基本上由约0.5至约99.5摩尔组成的聚酰胺。 %的具有4-12个碳原子的脂肪族二胺和与具有6-12个碳原子的脂族二羧酸共聚的2-甲基 - 戊二胺的互补量; 和(b)相对于100重量份所述聚酰胺为0.5〜200重量份的填料。 聚酰胺的RV大于约20.相关聚酰胺,特别是其中酸是1,12-十二烷二酸,也被公开。 聚酰胺可以用于各种最终用途,包括模塑,并且与尼龙6,6相比表现出优异的光泽度。

    Process for preparing polyamides comprising fluoroether functionalized aromatic moieties
    9.
    发明授权
    Process for preparing polyamides comprising fluoroether functionalized aromatic moieties 失效
    包含氟醚官能化芳族部分的聚酰胺的制备方法

    公开(公告)号:US08697831B2

    公开(公告)日:2014-04-15

    申请号:US13166052

    申请日:2011-06-22

    CPC分类号: C08G69/42

    摘要: The invention is directed to a process for preparing polyamide polymers, particularly nylon 6, 6 and nylon 6, comprising fluoroether functionalized aromatic repeat units. In one embodiment, 1,6 diaminohexane, adipic acid, and fluoroether functionalized terephthallic or isophthallic acid or diester are reacted to form a polymer. The polymers so formed are useful for imparting soil resistance to polyamides, particularly in the form of films, molded parts, fibers, fabrics, and carpets.

    摘要翻译: 本发明涉及一种制备聚酰胺聚合物,特别是尼龙6和尼龙6的方法,其包括氟醚官能化芳族重复单元。 在一个实施方案中,使1,6二氨基己烷,己二酸和氟代醚官能化的对苯二酚或异酞酸或二酯反应形成聚合物。 如此形成的聚合物可用于赋予聚酰胺的耐污性,特别是以薄膜,模制件,纤维,织物和地毯的形式。