Process for producing synthetic resin foam
    3.
    发明授权
    Process for producing synthetic resin foam 失效
    生产合成树脂泡沫的方法

    公开(公告)号:US5317033A

    公开(公告)日:1994-05-31

    申请号:US4472

    申请日:1993-01-14

    摘要: The present invention concerns a process for producing a synthetic resin foam composed of cells having substantially two sizes, one of the sizes being at most 0.3 mm and the other size as being 0.4 to 1 mm, comprising the steps of:forming a mixture of one or more of a water-absorbent high molecular compound, a cell-controlling agent, a synthetic resin, and water; melting the mixture with heating; incorporating a volatile type foaming agent into the mixture under pressure; and extruding the mixture into a lower pressure space to form a foam.

    摘要翻译: 本发明涉及一种制造合成树脂发泡体的方法,该合成树脂发泡体由具有基本上两个尺寸的单元组成,其中一个尺寸至多为0.3mm,另一个尺寸为0.4至1mm,包括以下步骤:形成一个 或更多的吸水性高分子化合物,细胞控制剂,合成树脂和水; 加热熔化混合物; 在压力下将挥发性发泡剂掺入混合物中; 并将混合物挤出到低压空间中以形成泡沫。

    Process of producing vinyl chloride polymers
    4.
    发明授权
    Process of producing vinyl chloride polymers 失效
    生产氯乙烯聚合物的工艺

    公开(公告)号:US3975338A

    公开(公告)日:1976-08-17

    申请号:US427172

    申请日:1973-12-21

    CPC分类号: C08F14/06 C08K5/42

    摘要: A vinyl chloride polymer for providing a vinyl chloride paste which has a good thermal stability, a stability to sol viscosity and an excellent air release capability in the natural state or in a short period of time under a moderately low pressure is produced by using, in the production thereof, as an emulsifying agent, the alkali metal salts and/or ammonium salts of a mixture of a major amount of olefin alkyl sulfonates and a minor amount of hydroxyalkyl sulfonates (hereinafter olefin alkyl/hydroxyalkyl sulfonates) having from about 8 to 20 carbon atoms, in the polymerization thereof or in the preparation of a vinyl chloride paste from the polymerized product.

    摘要翻译: 一种氯乙烯聚合物,其用于提供具有良好的热稳定性,在自然状态下或在短时间内在适度低的压力下的溶胶粘度的稳定性和优异的空气释放能力的氯乙烯浆料, 其生产作为乳化剂的主要量的烯烃烷基磺酸盐和少量羟烷基磺酸盐(以下称为烯烃烷基/羟基烷基磺酸盐)的混合物的碱金属盐和/或铵盐,其具有约8至20 碳原子,其聚合反应或从聚合产物制备氯乙烯糊。