Flame retardant wire with high insulation resistance
    562.
    发明授权
    Flame retardant wire with high insulation resistance 失效
    阻燃线具有高绝缘电阻

    公开(公告)号:US4797323A

    公开(公告)日:1989-01-10

    申请号:US703057

    申请日:1985-02-19

    Abstract: Very high levels of insulation resistance and of insulation resistance stability of insulating compositions having polyolefin bases and having polar organic additives are achieved in this invention. The polar organic additives can be organic halogenated flame retardants, such as decabromodiphenyl oxide. The surprising increase in insulation resistance and in insulation resistance stability is achieved by addition of certain antioxidants in combination and, particularly, the addition of a zinc salt of mercaptoimidazole and a sterically hindered ditertiary butyl phenol. The composition may be crosslinked by radiation or even by chemical means as through use or organic peroxides without loss of the surprisingly increased insulation resistance and insulation resistance stability.

    Abstract translation: 在本发明中实现了具有聚烯烃基并具有极性有机添加剂的绝缘组合物的绝缘电阻和绝缘电阻稳定性非常高的水平。 极性有机添加剂可以是有机卤代阻燃剂,如十溴二苯醚。 绝缘电阻和绝缘电阻稳定性的令人惊讶的增加通过组合加入某些抗氧化剂,特别是加入巯基咪唑锌盐和空间位阻二叔丁基酚来实现。 组合物可以通过辐射或甚至通过化学方法如通过使用或有机过氧化物而交联,而不会惊人地增加绝缘电阻和绝缘电阻的稳定性。

    Difficultly flammable veneered or coated extruded boards
    563.
    发明授权
    Difficultly flammable veneered or coated extruded boards 失效
    难燃的单板或涂层挤出板

    公开(公告)号:US4701373A

    公开(公告)日:1987-10-20

    申请号:US915493

    申请日:1986-10-06

    Abstract: The disclosure relates to difficulty flammable wooden articles, especially chip boards comprising solid and pipe boards, prepared by extrusion from wooden chips and/or woody fibrous materials. The articles contain as a flame-retarding addend a product of(a) 50 to 99.5 weight % of a flame-retarding agent physically and chemically stable under extrusion conditions, preferably 75 to 99.5 weight % of a pulverulent, free-flowing ammonium polyphosphate of the general formulaH.sub.(n-m)+2 (NH.sub.4).sub.m P.sub.n O.sub.3n+1in which n stands for a whole number with an average value of about 20 to 800 and the ratio of m/n is about 1, and(b) about 0.5 to 50 weight % of a cured water-insoluble artificial resin encapsulating the individual particles of the flame-retarding agent or ammonium polyphosphate.The disclosure also relates to difficulty flammable boards veneered with wood or a laminate.

    Abstract translation: 本公开涉及难易易燃的木制品,特别是包括固体和管板的芯板,其通过从木屑和/或木质纤维材料挤出而制备。 这些制品作为阻燃剂添加了(a)50-99.5重量%的阻燃剂在挤出条件下物理和化学稳定的产物,优选75-99.5重量%的粉末状,自由流动的多磷酸铵 通式为H(nm)+2(NH4)mPnO3n + 1,其中n代表整数,平均值约为20〜800,m / n的比例约为1,(b)约为0.5〜 50重量%的固化的不溶于水的人造树脂,其包封阻燃剂或多磷酸铵的各个颗粒。 本公开还涉及用木材或层压板镶嵌的易燃板材的难易程度。

    Flame resistant alkenyl aromatic compounds and polymers containing
chemically bonded phosphorus and blends with polyphenylene ether
    564.
    发明授权
    Flame resistant alkenyl aromatic compounds and polymers containing chemically bonded phosphorus and blends with polyphenylene ether 失效
    含有阻燃烯烃芳族化合物和含有化学键合的磷和与聚苯醚共混物的聚合物

    公开(公告)号:US4680342A

    公开(公告)日:1987-07-14

    申请号:US803448

    申请日:1985-12-02

    CPC classification number: C08F30/02 C08L71/123 C08L2201/02

    Abstract: Flame retardant alkenyl aromatic compounds which are vinylbenzyl diaryl phosphine oxides and a method for their preparation are described. They may be polymerized into higher molecular weight flame retardant materials which, in turn, may be admixed with polyphenylene ether resins to form thermoplastic flame resistant molding compositions. The present materials are more resistant to losses in the flame retardancy upon thermal processing, e.g., molding, because the active flame retardant agent, phosphorus, is chemically bound to the polymeric matrix.

    Abstract translation: 描述了乙烯基苄基二芳基氧化膦的阻燃烯基芳族化合物及其制备方法。 它们可以聚合成更高分子量的阻燃材料,其又可以与聚苯醚树脂混合以形成热塑性阻燃成型组合物。 由于活性阻燃剂磷与化学键合到聚合物基质上,本发明的材料在热加工(例如模制)时更耐阻燃性的损失。

    Fire resistance wood-based boards, process for producing same and
compositions useful therefor
    568.
    发明授权
    Fire resistance wood-based boards, process for producing same and compositions useful therefor 失效
    耐火木基板,其制造方法和有用的组合物

    公开(公告)号:US4065413A

    公开(公告)日:1977-12-27

    申请号:US620918

    申请日:1975-10-08

    CPC classification number: C08L97/02 C08L2201/02 C08L61/06 Y10S428/921

    Abstract: Aqueous solutions or slurries consisting essentially of water, ammonium hydrogen orthophosphate and urea wherein the amount of urea is from about one-half of the orthophosphate to about equal to the orthophosphate on a molar basis are useful in providing a fire-retardant coating on wood fibers when such fibers and a thermosetting resin are consolidated, under the simultaneous application of heat and pressure, to produce a panel having a density of at least 0.5 grams per cubic centimeter. The useful range of compositions thus contain a P:C atomic ratio of from about 1:1 to about 2:1. Such panels are improved by providing, prior to subjecting the fibers to heat and pressure, intimate contact between the fibers, the orthophosphate and urea composition and providing an amount of composition of at least 10% by weight of the fibers whereby upon the application of heat and pressure a chemical reaction occurs and a wood-based, fire-retardant panel having a Class II flame rating and improved structural properties is produced.

    Abstract translation: 基本上由水,正磷酸氢铵和尿素组成的水溶液或浆液,其中尿素的量为基于摩尔的正磷酸盐的约一半至约等于正磷酸盐的量可用于在木纤维上提供阻燃涂层 当这种纤维和热固性树脂被固化时,在同时施加热和压力下,以产生密度为至少0.5克/立方厘米的面板。 组合物的有用范围因此含有约1:1至约2:1的P:C原子比。 通过在纤维经受热和压力之前提供纤维,正磷酸盐和尿素组合物之间的紧密接触并提供至少10重量%的纤维的组合物量,从而在施加热量时提供这样的面板 并且发生化学反应的压力,并产生具有II级阻燃等级和改进的结构特性的木质阻燃板。

    Plastic compositions
    570.
    发明授权

    公开(公告)号:US4032507A

    公开(公告)日:1977-06-28

    申请号:US330809

    申请日:1973-02-08

    CPC classification number: C08L71/123 C08L2201/02

    Abstract: Plastic compositions containing polystyrene and bis-phenoxy compounds having the formula: ##STR1## WHEREIN Z is bromine, m and m' are each integers having a value of 1-5 and alkylene is a straight or branched chain alkylene group having 1 to 6 carbon atoms.

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