首页> 外国专利> Non-CFC blowing agent for prodn. of foamed prods - comprises hydrogen stored in hydride(s), released at elevated temp. and/or reduced pressure, for foamed rubber, expanded polystyrene, etc.

Non-CFC blowing agent for prodn. of foamed prods - comprises hydrogen stored in hydride(s), released at elevated temp. and/or reduced pressure, for foamed rubber, expanded polystyrene, etc.

机译:产品非氟氯化碳发泡剂。泡沫产品-包含储存在氢化物中的氢,并在高温下释放。和/或减压,用于泡沫橡胶,膨胀聚苯乙烯等。

摘要

Blowing agent (I) for the prodn. of foams and foamed prods. comprises hydrogen stored in hydrides, which is released when the hydride is exposed to heat and/or low pressure, thus producing the required increase in vol. with formation of pores. Pref. hydride material (II) is powdered metal at metalloid hydride (II) is homogeneously mixed with the substances to be foamed (III); pref. (II) and (III) are stored separately and only mixed when the foam is to be produced. USE/ADVANTAGE - Provides a non-CFC blowing agent which is harmless to the environment and can be used under the most variable conditions for the prodn. of various foamed prod. (I) contain large amts. of stored hydrogen, and residual hydride does not damage properties of the foam; the hydrogen rapidly diffuses out of the foam, leaving a material with low thermal conductivity. Used in e.g. structural or insulating-foam, foamed rubber, expanded polystyrene, porous concrete, etc.
机译:产品的发泡剂(I)。泡沫和泡沫刺棒。氢包含储存在氢化物中的氢,当氢化物暴露于热和/或低压时会释放出氢,从而产生所需的体积增加。形成毛孔。首选氢化物材料(Ⅱ)是金属粉末,在准金属氢化物(Ⅱ)中与要发泡的物质(Ⅲ)均匀混合;偏好(II)和(III)分别存储,并且仅在要生产泡沫时才混合。使用/优点-提供一种对环境无害的非CFC发泡剂,可以在产品的最可变条件下使用。各种泡沫产品。 (I)含有大虫子。储存的氢,残留的氢化物不会破坏泡沫的性能;氢迅速从泡沫中扩散出来,留下导热系数低的材料。用于例如结构或绝缘泡沫,泡沫橡胶,膨胀聚苯乙烯,多孔混凝土等。

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