Injection moldable poly(ethylene terephthalate)
    1.
    发明授权
    Injection moldable poly(ethylene terephthalate) 失效
    注塑成型聚对苯二甲酸乙二醇酯

    公开(公告)号:US4403052A

    公开(公告)日:1983-09-06

    申请号:US412473

    申请日:1982-08-30

    CPC分类号: C08K3/16 C08K3/04

    摘要: A flame retarded, injection moldable, saturated, linear polyester composition contains red phosphorus as flame retardant and a metal iodide as phosphine suppressing agent. The metal is one of the groups 1a and 2b of the periodic table of elements with potassium iodide being the most preferred.The phosphine evolution of a poly(ethylene terephthalate) molding composition containing 4% red phosphorus as flame retardant is reduced to 0.3 ppm at the die and to 1.0 ppm in storage by the addition of 0.6% of potassium iodide.

    摘要翻译: 阻燃注射成型的饱和直链聚酯组合物含有作为阻燃剂的红磷和作为磷化氢抑制剂的金属碘化物。 金属是元素周期表的组1a和2b之一,其中碘化钾是最优选的。 含有4%红磷作为阻燃剂的聚(对苯二甲酸乙二醇酯)模塑组合物的磷化氢演变通过加入0.6%碘化钾在模具处降低至0.3ppm,并在储存时减少至1.0ppm。

    Process for increasing the melt viscosity of polyamide with aryl
phosphate compound
    2.
    发明授权
    Process for increasing the melt viscosity of polyamide with aryl phosphate compound 失效
    用芳基磷酸酯化合物提高聚酰胺的熔体粘度的方法

    公开(公告)号:US4390667A

    公开(公告)日:1983-06-28

    申请号:US280564

    申请日:1981-07-06

    IPC分类号: C08G69/48

    CPC分类号: C08G69/48

    摘要: A process for decreasing the melt index and increasing the viscosity of polyamide compositions by adding thereto an effective amount of an aryl phosphate compound, and thereafter heating the composition until the desired changes in melt index or viscosity are attained.

    摘要翻译: 通过向其中加入有效量的芳基磷酸酯化合物,然后加热组合物直到达到所需的熔体指数或粘度变化,从而降低聚酰胺组合物的熔体指数和增加粘度的方法。

    Process for increasing the relative viscosity of polycaprolactam with
phosphite compound
    3.
    发明授权
    Process for increasing the relative viscosity of polycaprolactam with phosphite compound 失效
    增加聚己内酰胺与亚磷酸酯化合物的相对粘度的方法

    公开(公告)号:US4433116A

    公开(公告)日:1984-02-21

    申请号:US453210

    申请日:1982-12-27

    IPC分类号: C08G69/48

    CPC分类号: C08G69/48

    摘要: A process for rapidly and substantially decreasing the melt index and increasing the viscosity of polymers of caprolactams during melt processing by forming a molten mixture of the polymer and a phosphite compound and heating the mixture until the desired change in melt index and viscosity are obtained.

    摘要翻译: 通过形成聚合物和亚磷酸酯化合物的熔融混合物并加热混合物直到获得所需的熔体指数和粘度变化,从而快速且显着降低熔体指数并增加己内酰胺聚合物在熔融加工过程中的粘度。

    Quasi-random copolymers from homopolymers
    4.
    发明授权
    Quasi-random copolymers from homopolymers 失效
    来自均聚物的准无规共聚物

    公开(公告)号:US4417032A

    公开(公告)日:1983-11-22

    申请号:US370885

    申请日:1982-04-22

    摘要: A process for preparing quasi-random copolymers is described which involves heating a mixture of polyamides in the presence of one or more phosphite promotor(s). The process is conducted at temperatures between about 265.degree. C. and 315.degree. C. with the process time generally ranging from about 2 to about 20 minutes. The process is especially useful for preparing copolymers from a mixture of poly(caproamide) and poly(hexamethylene adipamide). The copolymer products prepared in accordance with the process are particularly suitable for the production of plastic films which have improved properties as compared to either of the homopolymers.

    摘要翻译: 描述了制备准无规共聚物的方法,其涉及在一种或多种亚磷酸酯促进剂的存在下加热聚酰胺的混合物。 该方法在约265℃至315℃的温度下进行,处理时间通常为约2至约20分钟。 该方法对于由聚(己酰胺)和聚(己二酰己二胺)的混合物制备共聚物特别有用。 根据该方法制备的共聚物产物特别适用于与均聚物相比具有改进性能的塑料膜的生产。

    Process for preparing graft and block copolymers
    5.
    发明授权
    Process for preparing graft and block copolymers 失效
    制备接枝和嵌段共聚物的方法

    公开(公告)号:US4417031A

    公开(公告)日:1983-11-22

    申请号:US337800

    申请日:1982-01-07

    CPC分类号: C08G69/00 C08G69/44 C08G81/00

    摘要: A process for preparing block, and/or graft copolymeric compositions by forming an intimate mixture of two or more polymers, at least one of which includes one or more amino junctions and at least one of the remaining polymers includes one or more carboxylic acid junctions and an effective amount of a phosphite compound, and thereafter heating the intimate mixture at a temperature and for a time sufficient to form the desired block, and/or graft copolymers.

    摘要翻译: 一种通过形成两种或更多种聚合物的紧密混合物制备嵌段和/或接枝共聚物组合物的方法,其中至少一种包括一个或多个氨基结,至少一种剩余的聚合物包括一个或多个羧酸结和 有效量的亚磷酸酯化合物,然后在足以形成所需嵌段的温度和时间下加热紧密混合物,和/或接枝共聚物。

    Self-crimped foamed fibers
    7.
    发明授权
    Self-crimped foamed fibers 失效
    自卷发泡纤维

    公开(公告)号:US4626390A

    公开(公告)日:1986-12-02

    申请号:US688494

    申请日:1985-01-03

    摘要: Crimped foamed fibers are produced by a process which eliminates any mechanical deformation steps. The process comprises the step of forming foamed fibers having a plurality of randomly arranged cells distributed asymetrically over a given cross section and occupying at least about 10% of the cross sectional area of the fiber, and heating the foamed fibers while maintaining the fibers under no load condition to produce a crimped foamed fiber. The crimped foamed fibers are used in apparel, carpet fibers, thermal insulation, acoustic and filtration.

    摘要翻译: 卷曲的发泡纤维通过消除任何机械变形步骤的方法产生。 该方法包括形成具有多个随机布置的细胞的发泡纤维的步骤,该多个随机布置的细胞在给定的横截面上以非对称方式分布并占据纤维横截面面积的至少约10%,并且在保持纤维不被保持的同时加热发泡纤维 负载条件以产生卷曲的发泡纤维。 卷曲发泡纤维用于服装,地毯纤维,隔热,声学和过滤。

    Fibers and filters containing said fibers
    9.
    发明授权
    Fibers and filters containing said fibers 失效
    含有纤维的纤维和过滤器

    公开(公告)号:US4908052A

    公开(公告)日:1990-03-13

    申请号:US300194

    申请日:1989-01-23

    IPC分类号: D01F6/92 D01F8/14

    摘要: This invention relates to a fiber comprising a major amount of a continous phase comprising one or more melt processible polyesters of fiber forming molecular weight, and a minor amount of one or more polyolefins non-uniformly dispersed in said continuous phase such that the concentration of polyolefins at or near the surface of said fiber is greater than the concentration of polyesters at or near the surface of said fiber, and a process for preparing said fiber.

    摘要翻译: 本发明涉及一种纤维,其包含主要量的连续相,其包含一种或多种可形成分子量的可熔融加工的聚酯,以及少量一种或多种不均匀分散在所述连续相中的聚烯烃,使得聚烯烃 在所述纤维的表面处或附近大于在所述纤维的表面处或附近的聚酯的浓度,以及制备所述纤维的方法。