Method for producing a low-density flexible polyurethane foam
    2.
    发明授权
    Method for producing a low-density flexible polyurethane foam 失效
    生产低密度柔性聚氨酯泡沫的方法

    公开(公告)号:US5130346A

    公开(公告)日:1992-07-14

    申请号:US599480

    申请日:1990-10-18

    摘要: A method producing a low-density flexible polyurethane foam comprising stirring a starting mixture containing a polyhydroxy compound, a polyisocyanate, a foaming agent and a catalyst to thereby foam the mixture, in which a foaming agent selected from the group consisting of water, formic acid and its salts is used in an amount of at least 10% by weight as water equivalent per 100 parts by weight of the polyhydroxy compound, and the mixture is stirred at 15.degree. C. or below by previously adjusting the temperature of the mixture to 15.degree. C. or below and under a highly catalytic activity.

    摘要翻译: 一种生产低密度柔性聚氨酯泡沫的方法,包括搅拌含有多羟基化合物,多异氰酸酯,发泡剂和催化剂的起始混合物,从而使混合物发泡,其中发泡剂选自水,甲酸 其盐的使用量相对于100重量份多羟基化合物为水当量至少为10重量%,通过将混合物的温度预先调节至15℃将混合物在15℃或更低温度下搅拌 ℃以下,并具有高催化活性。

    Method of making a composite panel of a foam material
    3.
    发明授权
    Method of making a composite panel of a foam material 失效
    制造泡沫材料复合板的方法

    公开(公告)号:US4938819A

    公开(公告)日:1990-07-03

    申请号:US211719

    申请日:1988-06-07

    摘要: A method of making a foam product including the steps of reacting an isocyanate component with a polyol component and foaming with a foaming agent to form a self-supporting intermediate foam material. The isocyanate component is present in excess of a stoichiometric quantity needed to react with the polyol component. The self-supporting intermediate foam material is then contacted with water and the self-supporting, intermediate foam material is heated to form a foam product, the water reacting with the remaining unreacted isocyanate component. The self-supporting, intermediate foam material formed by the first foaming step is rigid or semi-rigid at room temperature but it can be softened by heating to enable it to be used for deep draw molding in a successive cure molding process without cracking, splitting or being destroyed. Once the self-supporting, intermediate foam material is contacted with water or steam in the final cure molding process to react the remaining isocyanate component, the material becomes a finally cured, rigid or semi-rigid foam material which will not soften on heating. The self-supporting, intermediate foam material can be laminated with facing materials or reinforced with glass fiber--non-woven cloth or the like to give a composite panel which exhibits stiffness, heat insulation, acoustic insulation, moisture resistance and is light in weight so that it can be used for a molded ceiling or door panel in an automobile or a partition or screen for interior use.

    摘要翻译: 本发明是一种刚性或半刚性发泡材料的制造方法,其包括发泡工艺以制备实际上热塑性的发泡材料,其中异氰酸酯组分在有机发泡剂和/或水的条件下与多元醇组分反应 存在一定量的异氰酸酯组分超过反应中的多元醇组分和水的化学计量当量,以及连续的固化模塑方法,其中所述实际热塑性发泡材料与水或蒸汽接触以使剩余的异氰酸酯组分反应 其中加热时用水。 通过第一发泡方法获得的发泡材料在室温下未达到剩余异氰酸酯的刚性或半刚性的最终固化,但是通过加热软化可以在连续固化成型工艺中用于深拉伸成型 没有裂缝,分裂或拆除。 然后在最终的固化成型工序中与水或蒸汽接触,使剩余的异氰酸酯成分与水反应,进行最终的固化,从而成为刚性或半刚性的泡沫材料,而不会因加热而软化。 中间的实际热塑性泡沫材料可以与面料材料层压或用玻璃纤维无纺布等增强,以提供具有优异性能的复合板,例如轻质,刚度,隔热性,隔音性和耐湿性,适用于模塑 天花板或车门面板等,以及用于室内使用的隔板或屏幕。

    Flexible urethane foams having a low density and a method for producing
said foams
    4.
    发明授权
    Flexible urethane foams having a low density and a method for producing said foams 失效
    具有低密度的柔性聚氨酯泡沫体和用于生产所述泡沫体的方法

    公开(公告)号:US4226947A

    公开(公告)日:1980-10-07

    申请号:US954378

    申请日:1978-10-24

    摘要: Flexible urethane foams having a low density and capable of preventing spontaneous combustion during production and storage are produced by compounding 5.0-12.0 parts by weight based on 100 parts by weight of polyhydroxylcompounds, of water and not less than 0.1 part by weight of aromatic amine antioxidant, further preferably not less than 0.01 part by weight of phosphorous acid triesters in the usual combination of polyhydroxyl compounds, polyisocyanates, water, catalysts, surfactants, foaming agent and other additives.

    摘要翻译: 通过配合5.0-12.0重量份的基于100重量份的多羟基化合物的水和不少于0.1重量份的芳族胺抗氧化剂来制备具有低密度并且能够防止生产和储存期间的自燃的柔性聚氨酯泡沫 ,进一步优选不少于0.01重量份的多羟基化合物,多异氰酸酯,水,催化剂,表面活性剂,发泡剂和其它添加剂的通常组合中的亚磷酸三酯。

    Method of producing a moisture- and heat-resistant flexible polyurethane
foam
    5.
    发明授权
    Method of producing a moisture- and heat-resistant flexible polyurethane foam 失效
    生产防水耐热柔性聚氨酯泡沫的方法

    公开(公告)号:US4255526A

    公开(公告)日:1981-03-10

    申请号:US70081

    申请日:1979-08-27

    摘要: A moisture- and heat-resistant flexible polyurethane foam, which is free from lowering of the foam hardness due to moisture absorption during or after the production of the foam under a high temperature and high humidity condition and free from development of scorch during the production of the foam, can be obtained by adding an amino acid or an amino acid analogous compound to a raw material mixture, and foaming the resulting mixture.

    摘要翻译: 耐热和耐热的柔性聚氨酯泡沫,其在高温和高湿度条件下在泡沫生产过程中或之后吸湿时不会降低泡沫硬度,并且在生产过程中不会发生焦烧 可以通过向原料混合物中加入氨基酸或氨基酸类似物,并使所得混合物发泡来获得泡沫。

    Microcellular polyurethane elastomer and manufacturing method of the same
    6.
    发明授权
    Microcellular polyurethane elastomer and manufacturing method of the same 失效
    微孔聚氨酯弹性体及其制造方法相同

    公开(公告)号:US4647596A

    公开(公告)日:1987-03-03

    申请号:US856217

    申请日:1986-04-28

    摘要: Polyol component essentially consists of polyesterpolyetherpolyol containing polyesterpolyol by the weight ratio of 100:0 to 20:80, in which the polyesterpolyetherpolyol is a copolymer of polytetramethyleneglycol (PTMG) and .epsilon.-caprolactone by the weight ratio of 20:80 to 80:20 with an average molecular weight of 1000 to 3000 and the polyesterpolyol is a condensate of adipic acid as a main acid component with an average molecular weight of 1000 to 3000, is reacted with isocyanate component essentially consists of 4,4'-diphenylmethanediisocyanate (MDI) to make a prepolymer with terminal radical of NCO.Microcellular polyurethane produced from the prepolymer by foaming and polymerization reaction has the durability for vibration-proof material of car use, combining the advantage of PTMG such as high initial modulus at elongation, low heat built up, low-temperature property and hydrolysis-durability under high humid and hot conditions, with the advantage of polycaprolactone such as good molding property and anti-bending-fatigue property, as well as making up for the disadvantage of both polyols each other. Thus improving the problems of microcellular polyurethane using MDI such as low initial modulus at elongation and high heat built up.

    摘要翻译: 多元醇组分主要由聚酯多元醇多元醇组成,重量比为100:0至20:80,其中聚酯多元醇是聚四亚甲基二醇(PTMG)与ε-己内酯的共聚物,重量比为20:80至80:20, 平均分子量为1000〜3000,聚酯多元醇是己二酸作为主要酸成分的平均分子量为1000〜3000的缩合物,与异氰酸酯成分基本上由4,4'-二苯基甲烷二异氰酸酯(MDI)组成, 制备具有NCO末端基团的预聚物。 通过发泡和聚合反应由预聚物生产的微孔聚氨酯具有耐汽车使用的防振材料的耐久性,结合PTMG的优点,如伸长时的高初始模量,低热累积,低温性能和水解耐久性 高湿热条件下,具有良好的成型性和抗弯曲疲劳性等聚己内酯的优点,并且弥补了这两种多元醇的缺点。 从而改善了使用MDI的微孔聚氨酯的问题,如伸长时的低初始模量和高热积聚。

    Relief Valve Device
    7.
    发明申请
    Relief Valve Device 有权
    泄压阀装置

    公开(公告)号:US20080276992A1

    公开(公告)日:2008-11-13

    申请号:US11718974

    申请日:2004-11-11

    IPC分类号: F16K17/38

    摘要: Under emergency, a valve body (26) displaced from a closed position (42) to an open position (43) in association with melting of a fuse member (28) receives resultant of pressing forces of a primary pressure (P1) of gas guided through a primary port (56) in an opening direction (X1) in a state where the valve body (26) is disposed at the position closer to the open position (43) including a fluid driving start position between the closed position (42) and the open position (43). The valve body 26 receives smaller resultant of the pressing forces of the primary pressure in the opening direction (X1) in a state where the valve body (26) is disposed at the position closer to the closed position (42) than to the fluid driving start position than the resultant of the pressing forces received by the valve body (26) in the state where the valve body (26) is disposed at the position closer to the open position (43) including the fluid driving start position. In this manner, it is possible to provide a compact relief valve device capable of suppressing a pressing force applied to a displacement preventing means for preventing the opening operation under normal condition and of achieving a quick opening operation under emergency condition.

    摘要翻译: 在紧急情况下,与保险丝构件(28)的熔化相关联地从关闭位置(42)移动到打开位置(43)的阀体(26)接收压力的主要压力(P 1) 在阀体(26)设置在更靠近打开位置(43)的位置的状态下沿打开方向(X 1)引导通过主要端口(56),包括在关闭位置之间的流体驱动开始位置 42)和打开位置(43)。 阀体26在阀体(26)设置在比关闭位置(42)更靠近关闭位置(42)的位置的状态下,比开口方向(X 1)的压力大得多。 在阀体(26)设置在包括流体驱动开始位置的更靠近打开位置的位置的状态下,由阀体(26)接收的按压力的结果导致的开动位置。 以这种方式,可以提供一种紧凑的安全阀装置,其能够抑制施加到防止移动装置的按压力,以防止在正常状态下的打开操作并且在紧急情况下实现快速打开操作。

    Method for molding polyurethane seat pads
    8.
    发明授权
    Method for molding polyurethane seat pads 失效
    聚氨酯座垫成型方法

    公开(公告)号:US5603874A

    公开(公告)日:1997-02-18

    申请号:US517662

    申请日:1995-08-22

    CPC分类号: B60N2/7017 B29C44/0469

    摘要: A polyurethane seat pad having a center seat portion and bank portions therearound is molded by using a mold defining a cavity having a center region corresponding to the center seat portion and side regions corresponding to the bank portions, placing collecting vessels of expanded polyolefin in the side regions of the mold cavity, pouring a foamable polyurethane liquid for low hardness foam into the cavity between said collecting vessels, pouring a foamable polyurethane liquid for high hardness foam into said collecting vessels, and causing the foamable liquids to expand, thereby producing a polyurethane seat pad having the collecting vessels embedded therein. The expanded polyolefin is a crosslinked polyolefin foam having an index of surface wetting of at least 36 dyne/cm. The seat pad in which the bank portions have higher hardness than the seating portion and which is fully durable against repetitive loading can be produced to the desired configuration in a stable manner.

    摘要翻译: 通过使用限定具有对应于中心座部分的中心区域和与堤岸部分对应的侧部区域的空腔的模具来模制具有中心座部分和其周围的堤岸部分的聚氨酯座垫,将聚烯烃的收集容器放置在侧面 模具腔的区域,将用于低硬度泡沫的可发泡聚氨酯液体倒入所述收集容器之间的空腔中,将用于高硬度泡沫的可发泡聚氨酯液体倒入所述收集容器中,并使可发泡液体膨胀,由此生产聚氨酯座 衬垫具有嵌入其中的收集容器。 发泡聚烯烃是表面润湿指数至少为36达因/厘米的交联聚烯烃泡沫。 可以以稳定的方式产生其中堤部具有比座部更高的硬度并且完全耐受重复加载的座垫。