Compositions including a fluoroamine and a second component
    21.
    发明授权
    Compositions including a fluoroamine and a second component 失效
    组合物包括氟胺和第二组分

    公开(公告)号:US5441659A

    公开(公告)日:1995-08-15

    申请号:US150904

    申请日:1993-11-12

    申请人: Barbara H. Minor

    发明人: Barbara H. Minor

    摘要: Compositions of N(CF.sub.3).sub.a (CHF.sub.2).sub.b (CH.sub.2 F).sub.c, where a, b and c are integers from 0 to 3 and a+b+c=3, and C.sub.n F.sub.m H.sub.2n+2-m, where n is an integer from 1 to 3 and m is an integer from 1 to 8, are disclosed. Also disclosed are compositions of N(CF.sub.3).sub.3 and butane, cyclopropane, dimethyl ether or isobutane. These compositions are useful as refrigerants, cleaning agents, expansion agents for polyolefins and polyurethanes, aerosol propellants, heat transfer media, gaseous dielectrics, fire extinguishing agents, power cycle working fluids, polymerization media, particulate removal fluids, carrier fluids, buffing abrasive agents, and displacement drying agents.

    摘要翻译: N(CF 3)a(CHF 2)b(CH 2 F)c的组成,其中a,b和c是0-3的整数,a + b + c = 3,CnFmH2n + 2-m,其中n是 1〜3,m为1〜8的整数。 还公开了N(CF 3)3和丁烷,环丙烷,二甲醚或异丁烷的组合物。 这些组合物可用作制冷剂,清洁剂,聚烯烃和聚氨酯的膨胀剂,气溶胶推进剂,传热介质,气体电介质,灭火剂,动力循环工作流体,聚合介质,微粒去除流体,载体流体,抛光研磨剂, 和置换干燥剂。

    Process for producing foams
    23.
    发明授权
    Process for producing foams 失效
    生产手续的过程

    公开(公告)号:US5137932A

    公开(公告)日:1992-08-11

    申请号:US622839

    申请日:1990-12-05

    摘要: The invention relates to a process for producing foams based on polyisocyanates by reacting polyisocyanates, compounds having at least two hydrogen atoms reactive towards isocyanate groups, blowing agents and, if appropriate, further additives. In this process, a blowing agent is used which is composed to the extent of at least 10 mol % of one or more fluorinated ethers of the formulaC.sub.a H.sub.b F.sub.c --O--C.sub.d H.sub.e F.sub.fwhere______________________________________ a = 1-6 d = 1-2 b = 1-12 e = 0-5 c = 1-12 f = 0-5. ______________________________________

    摘要翻译: 本发明涉及通过使多异氰酸酯,具有至少两个对异氰酸酯基团具有反应性的氢原子的化合物,发泡剂和(如果合适的话)其它添加剂反应来制备基于多异氰酸酯的泡沫的方法。 在该方法中,使用发泡剂,其至少为10摩尔%的一种或多种式CaHbFc-O-CdHeFf的氟化醚的程度,其中-a = 1-6d = 1-2-b = 1-12 e = 0-5 -c = 1-12 f = 0-5。 -

    Reexpandable shrunken foam bodies of styrene-acrylonitrile type resin,
method for manufacture thereof, and method for filling therewith
    25.
    发明授权
    Reexpandable shrunken foam bodies of styrene-acrylonitrile type resin, method for manufacture thereof, and method for filling therewith 失效
    苯乙烯 - 丙烯腈类树脂的可再膨胀收缩泡沫体,其制造方法及其填充方法

    公开(公告)号:US4772636A

    公开(公告)日:1988-09-20

    申请号:US129008

    申请日:1987-12-04

    IPC分类号: C08J9/14 C08J9/228 C08J9/22

    摘要: Improved reexpandable shrunken foam bodies of styrene-acrylonitrile type resin possessing an ability to reexpand to the original volume of the highly foamed state when left standing at room temperature under atmospheric pressure and a method for the manufacture of such reexpandable shrunken foam bodies.The aforementioned shrunken foam bodies are obtained by causing a styrene-acrylonitrile type resin to contain a prescribed large amount of a specific foaming agent exhibiting a slow gas permeation speed to the base resin and possessing the boiling point exceeding a fixed lower limit, heating the resin with steam thereby setting it to foam highly, and releasing the foamed resin into the atmosphere to be cooled and shrunk therein.The aforementioned shrunken foam bodies are convenient for the purpose of transportation and storage. They are useful as fillers intended to absorb shocks and insulate heat. The foam bodies, when reexpanded, form useful materials used for in-mold shaped articles designed for absorbing shock and insulating heat.

    摘要翻译: 改进的苯乙烯 - 丙烯腈类树脂的可再膨胀收缩泡沫体在室温下在大气压下静置时具有再膨胀至初始体积的高发泡状态的能力,以及制造这种可再膨胀收缩泡沫体的方法。 上述缩小的发泡体是通过使苯乙烯 - 丙烯腈系树脂含有规定量的对基材树脂具有缓慢的气体渗透速度的特定发泡剂,并且沸点超过固定下限,加热树脂 用蒸汽使其高度发泡,并将发泡树脂释放到大气中以进行冷却和收缩。 上述缩小的泡沫体容易运输和储存。 它们可用作吸收冲击和绝热的填料。 泡沫体在再膨胀时形成用于吸收冲击和绝热的模内成形制品的有用材料。

    Foaming system for phenolic foams
    26.
    发明授权

    公开(公告)号:US4713400A

    公开(公告)日:1987-12-15

    申请号:US864657

    申请日:1986-05-19

    IPC分类号: C08J9/14

    摘要: A mixture of CFC-113 and CFC-123 and/or CFC-123a where CFC-123 or CFC-123a is a significant portion of the total composition has been found to result in improved blowing agent performance in phenol-formaldehyde foams compared to CFC-113.The use of CFC-123 (or CFC-123a, or both), in combination with CFC-113 improves resole resin solubility and mixed ingredient solution stability, prior to foaming. In addition, because of the lower molecular weight of CFC-123 (or CFC-123a) compared to CFC-113 better blowing agent efficiency will be realized per unit weight. Also, the lower boiling points of CFC-123 and CFC-123a as compared to CFC-113 results in a more ready conversion of dissolved blowing agent to released gaseous blowing agent by the exothermic phenolic resin polymerization. And because of the lower molecular weight and lower boiling point factors, a lower density foam is realized.

    Process for the manufacture of a silicone foam
    27.
    发明授权
    Process for the manufacture of a silicone foam 失效
    用于制造硅氧烷泡沫的方法

    公开(公告)号:US4704408A

    公开(公告)日:1987-11-03

    申请号:US800134

    申请日:1985-11-20

    摘要: A process for manufacturing foamed silicone compositions by foaming a cross-linkable composition which comprises:(a) 100 parts by weight of a vinyl-containing polysiloxane containing 0.0002 to 3% by weight of vinyl groups and a viscosity of from 0.1 to 1,000 Pascal-seconds at 25.degree. C.,(b) up to 10 parts by weight of a silanol-containing silicon compound with a viscosity from 0.01 to 10 Pascal-seconds at 25.degree. C.,(c) up to 200 parts by weight of filler,(d) 1 to 50 parts by weight of a polysiloxane with a viscosity of 0.005 to 0.1 Pascal-seconds at 25.degree. C., and(e) a platinum catalyst, is characterized by foaming the cross-linkable composition with a substance containing hydroxyl groups at temperatures of 50.degree. to 150.degree. C.

    摘要翻译: 一种通过发泡可交联组合物来制造泡沫硅氧烷组合物的方法,该方法包括:(a)100重量份含有0.0002-3重量%乙烯基的乙烯基聚硅氧烷和0.1-1,000帕斯卡 - 在25℃下的秒数,(b)至多10重量份的在25℃下粘度为0.01至10帕斯卡 - 秒的含硅烷醇的硅化合物,(c)至多200重量份的填料 ,(d)1〜50重量份在25℃下粘度为0.005〜0.1帕斯卡秒的聚硅氧烷,(e)铂催化剂的特征在于,使含有可交联组合物的物质含有 羟基在50°-150℃的温度下

    Expandable polypropylene interpolymer particles
    28.
    发明授权
    Expandable polypropylene interpolymer particles 失效
    可膨胀聚丙烯互聚物颗粒

    公开(公告)号:US4647593A

    公开(公告)日:1987-03-03

    申请号:US869540

    申请日:1986-06-02

    IPC分类号: C08F257/02 C08J9/14 C08J9/18

    摘要: A process for producing a polypropylene-polystyrene interpolymer which can be impregnated with a blowing agent and can then be expanded under normal conditions for polystyrene particles to low density, fine cell structure foams. The interpolymer is viscbroken during the polymerization of the styrene. The polypropylene is lubricated prior to formation of the interpolymer. The process forms particles which can be impregnated with blowing agent directly.

    摘要翻译: 一种生产聚丙烯 - 聚苯乙烯互聚物的方法,其可以用发泡剂浸渍,然后可以在正常条件下将聚苯乙烯颗粒膨胀至低密度细孔结构泡沫。 在苯乙烯的聚合期间,互聚物是粘着的。 聚丙烯在形成互聚物之前被润滑。 该方法形成可以直接用发泡剂浸渍的颗粒。