发明名称 |
PROCESS FOR PRODUCING GRANULAR CARBOXYLATED-POLYMER PARTICLE AND GRANULAR CARBOXYLATED-POLYMER PARTICLE |
摘要 |
An object of the invention is to provide a method for easily producing granular carboxyl group-containing polymer particles which have a high bulk density and readily swell in water. The invention provides a method for producing a granular carboxyl group-containing polymer particle which comprises producing a carboxyl group-containing polymer particle, preparing an aggregate of the carboxyl group-containing polymer particles by causing the carboxyl group-containing particles to absorb moisture to a moisture content of 5 to 25% by weight and drying the aggregate of the carboxyl group-containing polymer particles and then grinding the dried aggregate. |
申请公布号 |
CA2650198(C) |
申请公布日期 |
2014.07.08 |
申请号 |
CA20072650198 |
申请日期 |
2007.05.01 |
申请人 |
SUMITOMO SEIKA CHEMICALS CO., LTD. |
发明人 |
MORIMITSU, YUICHIRO;YOSHINAKA, MASATOYO;KOBAYASHI, SHINJI |
分类号 |
C08J3/12 |
主分类号 |
C08J3/12 |
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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