Method of forming thermoplastic foams using nano-particles to control cell morphology
    3.
    发明申请
    Method of forming thermoplastic foams using nano-particles to control cell morphology 有权
    使用纳米颗粒形成热塑性泡沫以控制细胞形态的方法

    公开(公告)号:US20050112356A1

    公开(公告)日:2005-05-26

    申请号:US10722929

    申请日:2003-11-26

    IPC分类号: C08J5/00 C08J9/00 B32B5/22

    摘要: A process for making closed-cell, alkenyl aromatic polymer foams using nano-particle nucleation agents to control the cell morphology of the resulting foam includes forming a polymer melt at a temperature above the polymer glass transition temperature (for crystal polymers) or the polymer melt point (for amorphous polymers); incorporating selected nano-particles into the polymer melt; incorporating blowing agents into the polymer melt at an elevated pressure; optionally incorporating other additives, such as flame retardants, into the polymer melt; and extruding the polymer melt under conditions sufficient to produce a foam product having a desired cell morphology, characterized by parameters such as reduced average cell size range and/or increased asymmetry of the cells.

    摘要翻译: 使用纳米颗粒成核剂制备闭孔烯基芳族聚合物泡沫以控制所得泡沫的细胞形态的方法包括在高于聚合物玻璃化转变温度(对于结晶聚合物)的温度下形成聚合物熔体或聚合物熔体 (无定形聚合物); 将选定的纳米颗粒掺入聚合物熔体中; 在高压下将发泡剂掺入聚合物熔体中; 任选地将其它添加剂如阻燃剂掺入聚合物熔体中; 以及在足以产生具有所需细胞形态的泡沫产物的条件下挤出所述聚合物熔体,其特征在于诸如减小的平均细胞大小范围和/或增加的细胞不对称性等参数。

    Deformable, rigid polystyrene foam boards
    4.
    发明申请
    Deformable, rigid polystyrene foam boards 审中-公开
    可变形,刚性聚苯乙烯泡沫板

    公开(公告)号:US20070149628A1

    公开(公告)日:2007-06-28

    申请号:US11708889

    申请日:2007-02-21

    IPC分类号: C08J9/00

    摘要: Provided are methods for producing a high strength, but easily deformed, polystyrene foam board that can endure repeatedly deformations from its original configuration into more complex curved shapes without damaging the board integrity or substantially reducing its structural strength. Also provided are rigid polystyrene foam boards produced by this method that exhibit improved bending and impact resistance while substantially retaining or improving other properties, for example, the thermal dimensional stability and fire resistance, exhibited by corresponding conventional XPS foam boards. The foamable compositions may incorporate one or more of a variety of polymer processing aids for the purpose of altering the performance of the final foam products, thereby allowing the properties of the final foam product to be customized to some degree.

    摘要翻译: 提供了用于生产高强度但容易变形的聚苯乙烯泡沫板的方法,其可以承受从其初始构造重复变形到更复杂的弯曲形状,而不损害板完整性或显着降低其结构强度。 还提供了通过该方法制造的刚性聚苯乙烯泡沫板,其显着改善了弯曲和抗冲击性,同时基本上保持或改善了相应的常规XPS泡沫板所显示的其它性能,例如热尺寸稳定性和耐火性。 可发泡组合物可以掺入多种聚合物加工助剂中的一种或多种,​​以改变最终泡沫产品的性能,从而允许最终泡沫产品的性质在一定程度上定制。

    Deformable, rigid polystyrene foam board
    5.
    发明申请
    Deformable, rigid polystyrene foam board 有权
    可变形,刚性聚苯乙烯泡沫板

    公开(公告)号:US20070043131A1

    公开(公告)日:2007-02-22

    申请号:US11208987

    申请日:2005-08-22

    IPC分类号: C08J9/00

    摘要: Provided are methods for producing a high strength, but easily deformed, polystyrene foam board that can endure repeatedly deformations from its original configuration into more complex curved shapes without damaging the board integrity or substantially reducing its structural strength. Also provided are rigid polystyrene foam boards produced by this method that exhibit improved bending and impact resistance while substantially retaining or improving other properties, for example, the thermal dimensional stability and fire resistance, exhibited by corresponding conventional XPS foam boards. The foamable compositions may incorporate one or more of a variety of polymer processing aids for the purpose of altering the performance of the final foam products, thereby allowing the properties of the final foam product to be customized to some degree.

    摘要翻译: 提供了用于生产高强度但容易变形的聚苯乙烯泡沫板的方法,其可以承受从其初始构造重复变形到更复杂的弯曲形状,而不损害板完整性或显着降低其结构强度。 还提供了通过该方法制造的刚性聚苯乙烯泡沫板,其显着改善了弯曲和抗冲击性,同时基本上保持或改善了相应的常规XPS泡沫板所显示的其它性能,例如热尺寸稳定性和耐火性。 可发泡组合物可以掺入多种聚合物加工助剂中的一种或多种,​​以改变最终泡沫产品的性能,从而允许最终泡沫产品的性质在一定程度上定制。

    Polystyrene foam containing a modifier-free nanoclay and having improved fire protection performance
    9.
    发明申请
    Polystyrene foam containing a modifier-free nanoclay and having improved fire protection performance 有权
    含有不含改性剂的纳米粘土并具有改进的防火性能的聚苯乙烯泡沫

    公开(公告)号:US20070179205A1

    公开(公告)日:2007-08-02

    申请号:US11221522

    申请日:2005-09-08

    IPC分类号: C08J9/16

    摘要: Polymer extruded or expanded foams that contain modifier-free nanoclays are provided. The addition of modifier-free nano-clays to extruded or expanded foam products improves the thermal properties, mechanical properties, and fire performance properties. Water or a water-containing compound is used as a carrier for the modifier-free nanoclays. The final foamed products may be utilized in building application such as foamed insulation products and in underground applications such as highway insulation. A preferred modifier-free nanoclay is Na+MMT. Modifier-free nanoclay particles may be injected into a polymer during an extrusion foaming process. In another embodiment of the invention, polymer beads containing water/nanoclay particles are formed using inverse emulsion/suspension polymerizations and expanded or extruded into a foamed product. In a further embodiment, a modifier-free nanoclay particle is encapsulated in a super-absorbent material, which may be used in an expanding or extruding process.

    摘要翻译: 提供了含有不含改性剂的纳米粘土的聚合物挤压或膨胀泡沫。 向挤出或膨胀的泡沫产品中加入无改性剂的纳米粘土改善了热性能,机械性能和防火性能。 使用水或含水化合物作为不含改性剂的纳米粘土的载体。 最终的发泡产品可用于建筑应用,例如泡沫绝热产品和地下应用如公路绝缘。 优选的不含修饰剂的纳米粘土是Na + MMT。 在挤出发泡过程中,可以将无修饰剂的纳米粘土颗粒注入聚合物中。 在本发明的另一个实施方案中,使用反相乳液/悬浮聚合形成含有水/纳米粘土颗粒的聚合物珠,并膨胀或挤出成发泡产品。 在另一个实施方案中,将不含改性剂的纳米粘土颗粒包封在超吸收材料中,其可用于膨胀或挤出过程。

    Thermoplastic foams and method of forming them using nano-graphite
    10.
    发明授权
    Thermoplastic foams and method of forming them using nano-graphite 有权
    热塑性泡沫及其使用纳米石墨成型的方法

    公开(公告)号:US09359481B2

    公开(公告)日:2016-06-07

    申请号:US12769144

    申请日:2010-04-28

    摘要: Rigid foam insulating products and processes for making such insulation products are disclosed. The foam products are formed from a polymer, a blowing agent, and nano-graphite. The nano-graphite has a size in at least one dimension less than about 100 nm and, in exemplary embodiments may be an intercalated, expanded nano-graphite. In addition, the nano-graphite may include a plurality of nanosheets having a thickness between about 10 to about 100 nanometers. The nano-graphite acts as a process additive to improve the physical properties of the foam product, such as thermal insulation and compressive strength. In addition, the nano-graphite in the foam controls cell morphology and acts as a nucleating agent in the foaming process. Further, the nano-graphite exhibits overall compound effects on foam properties including improved insulating value (increased R-value) for a given thickness and density and improved ultraviolet (UV) stability.

    摘要翻译: 公开了用于制造这种绝缘产品的刚性泡沫绝缘产品和方法。 泡沫产品由聚合物,发泡剂和纳米石墨形成。 纳米石墨具有至少一个尺寸小于约100nm的尺寸,并且在示例性实施例中可以是插层的,膨胀的纳米石墨。 此外,纳米石墨可以包括多个厚度在约10至约100纳米之间的纳米片。 纳米石墨用作加工添加剂以改善泡沫产品的物理性能,例如绝热和抗压强度。 此外,泡沫中的纳米石墨控制细胞形态,并在发泡过程中充当成核剂。 此外,纳米石墨对于给定的厚度和密度以及改进的紫外线(UV)稳定性,对泡沫性能具有整体化合物效应,包括改进的绝缘值(增加的R值)。