Method of producing hydrocarbon-expanded rigid polyurethane foams
    1.
    发明授权
    Method of producing hydrocarbon-expanded rigid polyurethane foams 有权
    生产碳氢化合物膨胀硬质聚氨酯泡沫的方法

    公开(公告)号:US6071978A

    公开(公告)日:2000-06-06

    申请号:US142992

    申请日:1998-09-11

    摘要: A process for preparing polyurethane rigid foams from polyols and polyisocyanates as well as blowing agents and optionally foam auxiliary agents, characterized in that the polyurethane rigid foam is obtained by reactingA) a polyol component with on average at least 3 hydrogen atoms, containing1. 60 to 100% of polyethers and/or polyesters with at least 2 hydroxyl groups and a molecular weight of 250 to 1,500, which have a surface tension of 6 to 14 mN/m with respect to i-pentane and/or n-pentane as blowing agent,2. i-pentane and/or n-pentane as blowing agent,3. water and4. optionally auxiliary agents and additiveswithB) a polyisocyanate with an NCO-content of 20 to 48 wt. % which has a surface tension of 4.0 to 8 mN/m with respect to i-pentane or n-pentane as blowing agentis described.

    摘要翻译: PCT No.PCT / EP97 / 01060 Sec。 371日期:1998年9月11日 102(e)日期1998年9月11日PCT 1997年3月3日PCT公布。 公开号WO97 / 34946 日期1997年9月25日一种由多元醇和多异氰酸酯以及发泡剂和任选的泡沫助剂制备聚氨酯硬质泡沫的方法,其特征在于聚氨酯硬质泡沫是通过使A)多元醇组分与平均至少3个氢 原子,含有1.6至100%的具有至少2个羟基和分子量为250至1,500的聚醚和/或聚酯,其相对于异戊烷和/或其混合物具有6至14mN / m的表面张力, 或正戊烷作为发泡剂,2.1-戊烷和/或正戊烷作为发泡剂,3.水和4.任选的助剂和添加剂,B)NCO含量为20-48wt。%的多异氰酸酯。 对相对于正戊烷或正戊烷作为发泡剂的表面张力为4.0〜8mN / m的%进行了说明。

    Process for the producing of hard polyurethane foams with low heat conductivity
    2.
    发明授权
    Process for the producing of hard polyurethane foams with low heat conductivity 有权
    具有低导热性的硬质聚氨酯泡沫体的制造方法

    公开(公告)号:US06316513B1

    公开(公告)日:2001-11-13

    申请号:US09194979

    申请日:1999-03-08

    IPC分类号: C08G1804

    摘要: A process for the production of rigid polyurethane foams having low thermal conductivity is described. This process comprises reacting A) a polyol component comprising: (1) at least one polyester polyol having a molecular weight of from 100 to 30,000 g/mol and containing at least two isocyanate-reactive hydrogen atoms; (2) at least one polyether polyol having a molecular weight of from 150 to 12,500 g/mol and containing at least two isocyanate-reactive hydrogen atoms and at least one tertiary nitrogen atom, and being prepared from a starter compound comprising ammonia or a compound containing at least one primary, secondary or tertiary amino group; (3) at least one polyether polyol having a molecular weight of from 150 to 12,500 g/mol and containing at least two isocyanate-reactive hydrogen atoms, and being prepared from a starter compound comprising water or a polyhydric alcohol; (4) at least one catalyst; (5) water (6) at least one blowing agent; and, optionally (7) auxiliary substances and/or additives; with B) an organic polyisocyanate having an NCO group content of from 20 to 48% by weight. Cyclopentane blown rigid polyurethane foams which exhibit low thermal conductivity and the end-use of such foams as an interlayer in a process for the production of composite components and for filling cavities is also disclosed.

    摘要翻译: 描述了一种生产具有低热导率的硬质聚氨酯泡沫体的方法。 该方法包括反应A)多元醇组分,其包含:(1)至少一种分子量为100至30,000g / mol并含有至少两个异氰酸酯反应性氢原子的聚酯多元醇;(2)至少一种具有 分子量为150至12,500g / mol并且含有至少两个异氰酸酯反应性氢原子和至少一个叔氮原子,并且由起始化合物制备,其包含氨或含有至少一个伯,仲或叔的化合物 氨基;(3)至少一种分子量为150至12,500g / mol且含有至少两个异氰酸酯反应性氢原子的聚醚多元醇,并由包含水或多元醇的起始化合物制备;(4 )至少一种催化剂;(5)水(6)至少一种发泡剂; 和(7)辅助物质和/或添加剂; 其中B)NCO基团含量为20至48重量%的有机多异氰酸酯。在制备复合材料组件的方法中表现出低导热性和最终使用这种泡沫如中间层的环戊烷喷射刚性聚氨酯泡沫 还公开了填充腔。

    Trace reporting method and system

    公开(公告)号:US20060242470A1

    公开(公告)日:2006-10-26

    申请号:US11448370

    申请日:2006-06-06

    IPC分类号: G06F11/00

    摘要: A system and method for recording, storing, transferring and viewing trace data from a processor with an embedded trace macrocell. The system provides for compression of repetitive trace records using an algorithm which identifies compressible trace record streams, creates a highly compressed processed trace record stream and stores the processed trace record stream in trace RAM. Thereafter, the processed trace record stream may be transferred to a host computer, expanded and displayed or printed for analysis.

    Handset actuated signal intercept
    4.
    发明授权
    Handset actuated signal intercept 失效
    手机启动信号截距

    公开(公告)号:US4748657A

    公开(公告)日:1988-05-31

    申请号:US865759

    申请日:1986-05-22

    IPC分类号: H04M3/14 H04M3/22 H04M3/38

    CPC分类号: H04M3/14 H04M3/2272 H04M3/38

    摘要: A handset actuated signal intercept circuit is located in a telephone central office and connected to the tip and ring leads of a telephone subscriber line. The signal intercept is operated from central office subscriber line power, but draws so small a current that it is undetectable in normal telephone usage. When a subscriber handset is lifted, the signal intercept detects dial tone and initiates a timing interval of predetermined duration. If no dialing pulses or tones are detected during this interval, the central office channel and trunk which are seized by the initiation of dial tone, are then freed for use on other subscriber lines. Alternatively, if the subscriber line is not authorized for use with touch-tone equipment, the appearance of selected touchpad tones on the subscriber line during the predetermined interval following the initiation of dial tone will activate a gate, which produces an alternating current short across the tip and ring leads of the subscriber line, and prevents further touchpad tones from getting out from the subscriber line.

    摘要翻译: 手机启动信号拦截电路位于电话中心局并连接到电话用户线的尖端和环形引线。 信号拦截由中心局用户线路电源进行操作,但是在正常的电话使用中,电流不足,无法检测到。 当用户手机被提升时,信号截距检测拨号音并启动预定持续时间的定时间隔。 如果在该间隔期间没有检测到拨号脉冲或音调,则由拨号音启动而占用的中心局信道和中继线被释放以用于其他用户线路。 或者,如果用户线路未被授权使用按键音设备,则在拨号音开始之后的预定间隔期间,用户线路上所选择的触摸板音调的出现将激活一个门,其产生跨越 用户线的尖端和环形引线,并且防止进一步的触摸板音从用户线路中出来。