发明名称 |
OZONE-RESISTANT POLYURETHANE COMPOSITION AND A PRODUCTION METHOD THEREFOR |
摘要 |
The ozone-resistant polyurethane composition according to the present invention, which is for the linings of valves, pipes or ozone contactors used in advanced water-treatment plants, comprises: 100 parts by weight of a polyurethane prepolymer consisting of toluene diisocyanate and poly(tetramethylene ether) glycol; from 8 to 14 parts by weight of 6-methyl-2,4-bis(methylthio)phenylene-1,3-diamine; and from 0.8 to 2.8 parts by weight of benzophenone or benzotriazole. Also, the production method for the ozone-resistant polyurethane composition according to the present invention, which is for the linings of valves, pipes or ozone contactors used in advanced water treatment plants, comprises the steps of: mixing from 0.8 to 2.8 parts by weight of benzophenone or benzotriazole in 100 parts by weight of a polyurethane prepolymer consisting of toluene diisocyanate and poly(tetramethylene ether) glycol, and stirring for between 25 and 35 minutes at between 90 and 100°C; and mixing from 8 to 14 parts by weight of 6-methyl-2,4-bis(methylthio)phenylene-1,3-diamine into the stirred liquid. |
申请公布号 |
WO2012070790(A2) |
申请公布日期 |
2012.05.31 |
申请号 |
WO2011KR08531 |
申请日期 |
2011.11.10 |
申请人 |
HK VALVE CO., LTD.;KOREA WATER RESOURCES CORPORATION;YOON, IL JOONG;JEON, IN;WI, OG RYANG;PARK, CHEOL JONG;HONG, YEON JO |
发明人 |
YOON, IL JOONG;JEON, IN;WI, OG RYANG;PARK, CHEOL JONG;HONG, YEON JO |
分类号 |
C08G18/10;C08G18/78;C08L75/04 |
主分类号 |
C08G18/10 |
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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