Microwave foam
    1.
    发明授权
    Microwave foam 失效
    微波泡沫

    公开(公告)号:US08114919B2

    公开(公告)日:2012-02-14

    申请号:US11852345

    申请日:2007-09-10

    申请人: Juergen Weidinger

    发明人: Juergen Weidinger

    IPC分类号: C08J9/00 C08J9/06

    摘要: Compositions foamable by exposure to microwave energy contain: (A) at least one compound bearing crosslinkable organic radicals for crosslinking, (B) at least one blowing agent which releases gas on heating, (C) at least one metal powder or metal compound, for example a metal oxide, individually, or a mixture thereof, which has microwave activity. Foams of uniform cell structure can be formulated with wide processing latitude.

    摘要翻译: 通过暴露于微波能发泡的组合物包含:(A)至少一种带有用于交联的可交联有机基团的化合物,(B)至少一种在加热时释放气体的发泡剂,(C)至少一种金属粉末或金属化合物,用于 例如具有微波活性的单独的金属氧化物或其混合物。 均匀细胞结构的泡沫可以宽广的加工范围配制。

    Method for cross-linking a foamable plastic
    2.
    发明授权
    Method for cross-linking a foamable plastic 失效
    交联发泡塑料的方法

    公开(公告)号:US07214724B2

    公开(公告)日:2007-05-08

    申请号:US10868060

    申请日:2004-06-15

    申请人: Marcel Salamon

    发明人: Marcel Salamon

    摘要: A plastic is converted from an initial condition with a higher density into a foamed condition with a lower density using a blowing agent, wherein the plastic is cross-linked prior to foaming by means of a first cross-linking agent and during the foaming by means of at least one second cross-linking agent.

    摘要翻译: 使用发泡剂将塑料从具有较高密度的初始条件转化为具有较低密度的发泡状态,其中在通过第一交联剂发泡之前和在通过装置发泡期间将塑料交联 的至少一种第二交联剂。

    Automotive molded roof material and process for producing the same
    4.
    发明授权
    Automotive molded roof material and process for producing the same 失效
    汽车模制屋顶材料及其制造方法

    公开(公告)号:US5656675A

    公开(公告)日:1997-08-12

    申请号:US555203

    申请日:1995-11-08

    摘要: A process for producing an automotive molded roof material is provided which comprises sheeting a foamable sheet forming composition comprising a specified propylene resin, a glass fiber, a radical initiator, a crosslinking auxiliary and a foaming agent in specific proportions into a foamable sheet, lining one side of the foamable sheet with a backing sheet so as to integrate these and irradiating the foamable sheet with ionizing radiation to thereby crosslink the propylene resin, followed by heating the foamable sheet so as to cause the foamable sheet to foam, placing a cover sheet on the other side of the foamed sheet before the sheet cools to solidify and press molding the cover sheet on the foamed sheet to cover. There is also provided an automotive molded roof material produced by the above process. An automotive molded roof material is obtained which can be recycled, is lightweight and has high rigidity.

    摘要翻译: 提供了一种制造汽车模塑屋顶材料的方法,其包括将特定丙烯树脂,玻璃纤维,自由基引发剂,交联助剂和特定比例的发泡剂以特定比例包含在可发泡片材中的可发泡片材成型组合物, 将其与该片材一体化,使电离辐射照射可发泡片材,由此使丙烯树脂交联,然后加热发泡片材,使发泡片材发泡,将覆盖片材放置在 在片材冷却固化之前的发泡片材的另一侧,并将发泡片材上的覆盖片压成型以覆盖。 还提供了通过上述方法制造的汽车模制屋顶材料。 得到汽车模制屋顶材料,其可再循环,重量轻且刚性好。

    Foamable silicone rubber composition
    5.
    发明授权
    Foamable silicone rubber composition 失效
    可发泡硅橡胶组合物

    公开(公告)号:US5061736A

    公开(公告)日:1991-10-29

    申请号:US696390

    申请日:1991-05-06

    摘要: The foamable silicone rubber composition is capable of giving a cured silicone rubber body having a cellular structure and suitable for use as a very reliable fire-resistant joint-sealing member in buildings. In addition to the rather conventional constituents essential in a foamable silicone rubber composition of prior art including (a) a diorganopolysiloxane, (b) a finely divided reinforcing silica filer, (f) a curing agent and (g) a blowing agent, the foamed silicone rubber body obtained by curing the inventive composition is imparted with very reliable fire resistance by virtue of the synergistic effect of the characteristic ingredients including (c) a ferrite powder, (d) a finely divided inorganic material or, in particular, mica flakes, and (e) a platinum compound, in combination, each in a specified amount.

    Polyimide compositions and processes
    6.
    发明授权
    Polyimide compositions and processes 失效
    聚酰亚胺组合物和方法

    公开(公告)号:US4944902A

    公开(公告)日:1990-07-31

    申请号:US456512

    申请日:1989-12-26

    IPC分类号: C08G73/10 C08J9/02

    摘要: A copolyimide foam comprising the reaction product of one or more of an aromatic tetracarboxylic acid and a compound of the formula: ##STR1## where x is an integer from 1 to 12 and R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are the same or different and are hydrogen or C.sub.1 to C.sub.6 linear or branched alkyl a mixture thereof with two or more diamines at least one of which being a heterocyclic diamine having a nitrogen atom in the ring and the other being a para- or meta-substituted aromatic diamine free of aliphatic substitution.Processes for producing the above copolyimide foam are also disclosed.

    摘要翻译: 一种共聚酰亚胺泡沫体,其包含一种或多种芳族四羧酸和下式化合物的反应产物:其中x是1至12的整数,并且R 1,R 2,R 3和R 4相同或不同, 是氢或C1-C6直链或支链烷基,其与两个或多个二胺的混合物,其中至少一种是环中具有氮原子的杂环二胺,另一种是不含脂族的对位或间位取代的芳族二胺 代换。 还公开了用于生产上述共聚酰亚胺泡沫的方法。

    Production of foamed polymer structures
    8.
    发明授权
    Production of foamed polymer structures 失效
    泡沫聚合物结构的生产

    公开(公告)号:US4804504A

    公开(公告)日:1989-02-14

    申请号:US208757

    申请日:1988-06-20

    摘要: Described are ways of improving the yields of specification grade polyimide foam on a consistent basis from one run to the next by use of improvements in microwave-based foaming processes. While a body of polyimide precursor is exposed to microwave radiation, the body of polyimide precursor and of the foam structure as it is developing therefrom are kept under a substantially vapor-impermeable microwave-compatible shroud that does not substantially restrict or impede development of the foam structure. For this purpose use may be made of a shroud composed of a polymer film. Mechanisms by which the shroud produces the improved results are discussed, and methods based thereon are set forth.

    摘要翻译: 描述了通过使用基于微波的发泡方法的改进,通过一次运行到下一个步骤来提高规格级聚酰亚胺泡沫的产率的方法。 当聚酰亚胺前体体暴露于微波辐射时,聚酰亚胺前体和泡沫结构的主体正在从其形成,保持在基本上不透气的微波相容的护罩下,其基本上不限制或阻碍泡沫的发展 结构体。 为此,可以使用由聚合物膜构成的护罩。 讨论了护罩产生改进结果的机理,并阐述了基于此的方法。

    Process for producing polypropylene foam
    9.
    发明授权
    Process for producing polypropylene foam 失效
    生产聚丙烯泡沫的方法

    公开(公告)号:US4766159A

    公开(公告)日:1988-08-23

    申请号:US064627

    申请日:1987-06-22

    IPC分类号: C08J9/06 C08J9/10

    摘要: The invention relates to the process of the invention provides a radiation-crosslinked polypropylene foam by extrusion at a low temperature (about 170.degree. C.) below the decomposition point of the blowing agent. The resulting foamed item has by far better heat resistance than conventional ones.The raw resin can be prepared by mixing a resin in the pellet form and a blowing agent in the powder form on account of the low-temperature flowability. Heretofore, such mixing was impossible because the blowing agent does not disperse completely.This outstanding effect of the invention was not expected at all from the known prior arts.

    摘要翻译: 本发明涉及本发明的方法通过在低于发泡剂分解点的低温(约170℃)下挤出而提供辐射交联的聚丙烯泡沫。 所得到的发泡物品的耐热性比常规的好。 原料树脂可以通过将颗粒形式的树脂和粉末形式的发泡剂混合,由于低温流动性而制备。 迄今为止,这种混合是不可能的,因为发泡剂不完全分散。 根据已有的现有技术,根本不期望本发明的这种突出的效果。

    Heat-foamable olefinic resin composition and process for production of
olefinic resin foam from said composition
    10.
    发明授权
    Heat-foamable olefinic resin composition and process for production of olefinic resin foam from said composition 失效
    热可发泡烯烃树脂组合物和从所述组合物生产烯烃树脂泡沫的方法

    公开(公告)号:US4510031A

    公开(公告)日:1985-04-09

    申请号:US604315

    申请日:1984-04-25

    摘要: A heat-foamable olefinic resin composition comprising(a) an ethylenic polymer,(b) a propylene/alpha-olefin copolymer having a melting point of 130.degree. to 160.degree. C.,(c) a propylene polymer having a melting point at least 10.degree. C. higher than the melting point of the propylene/alpha-olefin copolymer, and(d) a blowing agent, and optionally(e) a crosslinking agent and/or a crosslinking promoting agent; anda process for producing an olefinic resin foam comprising crosslinking and heat-foaming the aforesaid heat-foamable olefinic resin composition.

    摘要翻译: 一种可发泡烯烃树脂组合物,其包含(a)乙烯性聚合物,(b)熔点为130-160℃的丙烯/α-烯烃共聚物,(c)至少具有熔点的丙烯聚合物 10℃,高于丙烯/α-烯烃共聚物的熔点,和(d)发泡剂,和任选的(e)交联剂和/或交联促进剂; 以及一种用于制备烯烃树脂泡沫的方法,其包括使上述可发泡烯烃树脂组合物交联和热发泡。