发明名称 |
ABSORBING MATERIAL FOR STAGNATION WATER IN PIPE |
摘要 |
PURPOSE:To efficiently and surely remove stagnant water in a pipe by impregnating and coating a sheet like fiber base material with a water-soluble ethylenic unsaturated monomer and polymerizing said monomer to form a highly water- absorbable resin. CONSTITUTION:A fibrous or sponge-like base material 1 such as a pad composed of loosely molded fibers or a carded fiber web is formed to the outer peripheral part of a string-like core material composed of metal or plastic. This base material 1 is impregnated or coated with a water-soluble ethylenic unsaturated monomer and a crosslinking agent is allowed to act on the monomer to polymerize the same to form a water-absorbable resin 2. The absorbing material 3 thus obtained for stagnant water in a pipe is inserted in the pipe from the terminal thereof to be allowed to reach the lowest part and allowed to stand for a definite time to absorb the penetrating stagnant water. Since the water- absorbable polymer composite is used as a water absorbing layer in this absorbing material, the detachment of the resin gel after water absorption is reduced. |
申请公布号 |
JPH0321385(A) |
申请公布日期 |
1991.01.30 |
申请号 |
JP19890154144 |
申请日期 |
1989.06.16 |
申请人 |
MITSUBISHI PETROCHEM CO LTD |
发明人 |
FUJITANI KENSHO;KATO KOJI;TOKIMURA KENJI |
分类号 |
B08B9/04;B08B9/02;B29C70/06;B29D99/00;B29K105/04;B29K105/08;B29L31/10;H02G1/08 |
主分类号 |
B08B9/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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