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31. 发明公开

EP0370646A2 Apparatus and method for the manufacture of absorbent materials 失效
标题翻译： Apparat und Verfahren zum Herstellen von absorptionierenden Materialien。
公开(公告)号：EP0370646A2
公开(公告)日：1990-05-30
申请号：EP89311346.4
申请日：1989-11-02
申请人： NIPPON SHOKUBAI CO., LTD.
发明人： Miyake, Koji , Harada, Nobuyuki , Kimura, Kazumasa , Shimomura, Tadao
IPC分类号： D06M14/08 , D06M14/10 , D06M14/14
CPC分类号： D06M14/08
摘要： It is an object of the invention to present a method of easily and efficiently manufacturing an absorbent material having an absorbent polymer firmly fixed to a substrate, exhibiting an excellent absorption capacity without the polymer dropping off the substrate even after swelling of the polymer, and very low in the residual monomer in the absorbent polymer.
This invention relates to a method of preparation of an absorbent material in which an aqueous solution containing a water-soluble radical polymerization initiator and a water-soluble ethylenically unsaturated monomer which can be converted into an absorbent polymer by polymerization is applied to a substrate, and the monomer is polymerized while the substrate to which the aqueous solution is applied is, on both the sides, held in contact with polymerization-inert surfaces facing each other.
The invention also relates to a continuous manufacturing method of an absorbent material characterized by continuously passing in the sequence of

1. the region of applying to a substrate an aqueous solution containing a water-soluble radical polymerization initiator and a water-soluble ethylenically unsaturated monomer which can be converted into an absorbent polymer by polymerization, and
2. the region of polymerizing the monomer in the state of holding the substrate, on both the sides, in contact with polymerization-inert surfaces facing each other, while moving the substrate.

The invention further relates to a manufacturing apparatus of an absorbent material comprising the following means (1) and (2) arranged along the moving route of the substrate for applying to the substrate, while moving the substrate continuously, an aqueous solution containing a water-soluble radical polymerization initiator and a water-soluble ethylenically unsaturated monomer which can be converted into an absorbent polymer by polymerization, polymerizing the monomer under a condition that the substrate is, on both the sides, held in contact with polymerization-inert surfaces facing each other, and thereby fixing the absorbent polymer to the substrate.

(1) Means for applying to a moving substrate an aqueous solution containing a water-soluble radical polymerization initiator and a water-soluble ethylenically unsaturated monomer which can be converted into an absorbent polymer by polymerization.
(2) Polymerization means possessing facing polymerization-inert surfaces and means for setting a gap of a clearance corresponding to the thickness of the substrate between the facing polymerization-inert surfaces, for polymerizing the monomer, while the substrate to which the aqueous solution is applied is passing through the gap to fix the absorbent polymer to the substrate.
摘要翻译：本发明的目的是提供一种容易且有效地制造吸收性材料的方法，该吸收材料具有牢固地固定在基材上的吸收性聚合物，即使在聚合物溶胀之后，也不会使聚合物从基体上脱落而呈现优异的吸收能力，吸收性聚合物中残留单体的含量低。本发明涉及一种吸收材料的制备方法，其中将含有水溶性自由基聚合引发剂的水溶液和可通过聚合转化为吸收性聚合物的水溶性烯键式不饱和单体施加到基材上，单体聚合，同时施加水溶液的基材在两侧保持与彼此面对的聚合惰性表面接触。本发明还涉及一种吸收材料的连续制造方法，其特征在于以1的顺序连续通过向基底施加含有水溶性自由基聚合引发剂和水溶性烯键式不饱和单体的水溶液的区域可以通过聚合转化为吸收性聚合物，以及2.在保持基材的状态下，在移动基材的同时在两侧与聚合惰性表面接触的状态聚合单体的区域。本发明还涉及一种吸收材料的制造装置，其包括沿基板的移动路径布置的以下装置（1）和（2），用于施加到基板上，同时连续移动基板，将含有水溶液的水溶液，可溶性自由基聚合引发剂和水溶性烯属不饱和单体，其可以通过聚合转化成吸收性聚合物，在基材的两侧与彼此面对的聚合惰性表面保持接触的条件下聚合单体从而将吸收性聚合物固定在基材上。（1）向移动基板施加含有水溶性自由基聚合引发剂和水溶性烯键式不饱和单体的水溶液，其可以通过聚合转化为吸收性聚合物。（2）具有面向聚合惰性表面的聚合方法和用于在面向聚合惰性表面之间设置与基材厚度相对应的间隙的间隙的装置，用于聚合单体，同时施加水溶液的基材通过间隙将吸收性聚合物固定到基底上。

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