Acetal-based compositions
    4.
    发明申请
    Acetal-based compositions 有权
    基于乙缩醛的组合物

    公开(公告)号:US20050239928A1

    公开(公告)日:2005-10-27

    申请号:US10831920

    申请日:2004-04-26

    摘要: An acetal-based composition useful as a nucleating, gelling, thickening or clarifying agent is disclosed. The composition may be synthesized or provided in many different forms, including multicarbon diacetals formed from carbohydrates. Once synthesized, the compound may be employed as an additive in a plastic composition, such as (for example) a polypropylene copolymer. One structure of such an acetal-based composition is provided by the formula: wherein: n is 0, 1 or 2; Ar1 and Ar2 are independently selected from substituted or unsubstituted aryl-containing groups; and R is selected from the group consisting of: alkenyls, alkyls, alkoxy, hydroxyl alkyls, and alkyl-halides.

    摘要翻译: 公开了可用作成核剂,胶凝剂,增稠剂或澄清剂的基于缩醛的组合物。 组合物可以以许多不同形式合成或提供,包括由碳水化合物形成的多碳二缩醛。 一旦合成,该化合物可以用作塑料组合物中的添加剂,例如(例如)聚丙烯共聚物。 这种基于缩醛的组合物的一种结构由下式提供:其中:n为0,1或2; Ar 1和Ar 2独立地选自取代或未取代的含芳基; 并且R选自:烯基,烷基,烷氧基,羟基烷基和烷基卤化物。

    Polypropylene monofilament and tape fibers exhibiting certain creep-strain characteristics and corresponding crystalline configurations

    公开(公告)号:US20050019565A1

    公开(公告)日:2005-01-27

    申请号:US10899510

    申请日:2004-07-26

    摘要: Unique thermoplastic (polypropylene, specifically) monofilament and/or tape fibers and yarns that exhibit heretofore unattained physical properties are provided. Such fibers are basically manufactured through the extrusion of thermoplastic resins that include a certain class of nucleating agent therein, and are able to be drawn at high ratios with such nucleating agents present, that the tenacity and modulus strength are much higher than other previously produced thermoplastic fibers (particularly those produced under commercial conditions), particularly those that also simultaneously exhibit extremely low shrinkage rates. Thus, such fibers require the presence of certain compounds that quickly and effectively provide rigidity to the target thermoplastic (for example, polypropylene), particularly after heat-setting. Generally, these compounds include any structure that nucleates polymer crystals within the target thermoplastic after exposure to sufficient heat to melt the initial pelletized polymer and allowing such an oriented polymer to cool. The compounds must nucleate polymer crystals at a higher temperature than the target thermoplastic without the nucleating agent during cooling. In such a manner, the “rigidifying” nucleator compounds provide nucleation sites for thermoplastic crystal growth. The preferred “rigidifying” compounds include dibenzylidene sorbitol based compounds, as well as less preferred compounds, such as [2.2.1]heptane-bicyclodicarboxylic acid, otherwise known as HPN-68, sodium benzoate, talc, certain sodium and lithium phosphate salts [such as sodium 2,2′-methylene-bis-(4,6-di-tert-butylphenyl)phosphate, otherwise known as NA-11]. Specific methods of manufacture of such inventive thermoplastic fibers, as well as fabric articles made therefrom, are also encompassed within this invention.

    Co-additive compositions and methods for applying co-additive compositions into nucleated polymer compounds
    6.
    发明申请
    Co-additive compositions and methods for applying co-additive compositions into nucleated polymer compounds 有权
    共添加剂组合物和将共添加剂组合物施加到有核聚合物化合物中的方法

    公开(公告)号:US20060173108A1

    公开(公告)日:2006-08-03

    申请号:US11045630

    申请日:2005-01-28

    IPC分类号: C08K5/15

    摘要: It is possible to improve significantly the optical performance of diacetal or DBS-based nucleating or clarifying agents using a co-additive. Haze is a measure of the lack of clarity in a thermoplastic or plastic material. A low level of haze is usually quite desirable, and nucleating/clarifying agents are designed to reduce the degree of haze in a plastic or thermoplastic material. A co-additive may be used in connection with a nucleating/clarifying agents in a polymer or copolymer to achieve even greater results in terms of improved clarity (reduced haze), or in terms of a higher crystallization temperature (Tc) of the polymer. A method for reducing haze in polymer articles using a co-additive composition in addition to nucleating and clarifying agents is disclosed.

    摘要翻译: 可以显着改善使用共添加剂的二缩醛或基于DBS的成核剂或澄清剂的光学性能。 雾度是热塑性塑料或塑胶材料缺乏透明度的衡量标准。 通常非常需要低水平的雾度,并且设计成核/澄清剂以减少塑料或热塑性材料中的雾度。 关于聚合物或共聚物中的成核/澄清剂可以使用共添加剂,以便在改进的澄清度(降低的雾度)方面或在聚合物的较高结晶温度(Tc)方面获得更大的结果。 公开了除了成核剂和澄清剂之外还使用共添加剂组合物降低聚合物制品中的雾度的方法。

    Method of nucleating a polyolefin composition with acetal-based compounds
    7.
    发明申请
    Method of nucleating a polyolefin composition with acetal-based compounds 有权
    使用缩醛类化合物成核聚烯烃组合物的方法

    公开(公告)号:US20050239926A1

    公开(公告)日:2005-10-27

    申请号:US10893633

    申请日:2004-07-16

    摘要: An acetal-based composition useful as a nucleating, gelling, thickening or clarifying agent is disclosed. The composition may be synthesized or provided in many different forms, including multicarbon diacetals formed from carbohydrates. Once synthesized, the compound may be employed as an additive in a plastic composition, such as (for example) a polypropylene copolymer. Co-additives may also be employed. Several aryl structures may reside upon the hydrocarbon chain backbone. One structure of such an acetal-based composition which happens to have two aryl-containing groups is shown: wherein: n is 0, 1 or 2; Ar1 and Ar2 are independently selected from substituted or unsubstituted aryl-containing groups; and R is selected from the group consisting of: alkenyls, alkyls, alkoxy, hydroxyl alkyls, and alkyl-halides.

    摘要翻译: 公开了可用作成核剂,胶凝剂,增稠剂或澄清剂的基于缩醛的组合物。 组合物可以以许多不同形式合成或提供,包括由碳水化合物形成的多碳二缩醛。 一旦合成,该化合物可以用作塑料组合物中的添加剂,例如(例如)聚丙烯共聚物。 也可以使用共添加剂。 几个芳基结构可以位于烃链骨架上。 显示出具有两个含芳基基团的这种基于缩醛的组合物的一种结构:其中:n为0,1或2; Ar 1和Ar 2独立地选自取代或未取代的含芳基; 并且R选自:烯基,烷基,烷氧基,羟基烷基和烷基卤化物。

    Polymer additive compositions for bimolecular nucleation in thermoplastics
    8.
    发明申请
    Polymer additive compositions for bimolecular nucleation in thermoplastics 审中-公开
    用于热塑性塑料中双分子成核的聚合物添加剂组合物

    公开(公告)号:US20050197435A1

    公开(公告)日:2005-09-08

    申请号:US11103384

    申请日:2005-04-11

    IPC分类号: C08K5/04

    摘要: Specific methods of inducing high nucleation rates in thermoplastics, such as polyolefins, and particularly, though not necessarily, polypropylenes, through the introduction of two different compounds that are substantially soluble within the target molten thermoplastic resin (such as, as one non-limiting example, an added compound including at least one acid group and an added organic salt) are provided. Such introduced components react to form a nucleating agent in situ within such a target molten thermoplastic resin which is then allowed to cool. Preferably, one compound is an acid, preferably bicyclic (i.e., two cyclic systems sharing at least three carbon atoms) or monocycloaliphatic (i.e., a single, saturated ring system) in nature, such as, without limitation, bicyclo[2.2.1]heptane dicarboxylic acid or hexahydrophthalic acid, and the other compound is an organic salt, such as a carboxylate, sulfonate, phosphate, oxalate, and the like, and more preferably selected from the group consisting of metal C8-C22 esters. Such a production method thus provides a manner of generating in situ the desired nucleating agent through reaction of such soluble compounds. Kits (e.g., masterbatch methods, for example) comprising such components for easy introduction within target molten polyolefin resins are also contemplated within this invention.

    摘要翻译: 通过引入基本上可溶于目标熔融热塑性树脂的两种不同的化合物(例如作为一个非限制性实例),在热塑性塑料如聚烯烃,特别是但不一定是聚丙烯中诱导高成核速率的具体方法 ,含有至少一个酸基和添加的有机盐的添加化合物)。 这种引入的组分反应以在这样的目标熔融热塑性树脂中就地形成成核剂,然后使其冷却。 优选地,一种化合物在本质上是酸,优选双环(即,共享至少三个碳原子的两个环状体系)或单环脂族(即单个饱和环系),例如但不限于双环[2.2.1] 庚烷二羧酸或六氢邻苯二甲酸,另一种化合物为有机盐,如羧酸盐,磺酸盐,磷酸盐,草酸盐等,更优选选自金属C 8 -C 22酯。 因此,这种制备方法提供了通过这些可溶性化合物的反应原位产生所需成核剂的方式。 在本发明中也考虑了包含这些组分以用于在目标熔融聚烯烃树脂内容易引入的组分(例如,母料方法)。