| 发明名称 |
Process for the preparation of blocking-resistant, water- redispersible polymer powders by spraying aqueous polymer dispersions |
| 摘要 |
The invention relates to a process for the preparation of blocking-resistant, water-dispersible polymer powders by spraying the aqueous polymer dispersions which contain an additive of a water-soluble copolymer comprising from 20 to 70% by weight of vinylpyrrolidone and from 30 to 80% by weight of vinyl acetate, and to the use thereof as additives for hydraulic binders.
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| 申请公布号 |
DE3143071(A1) |
申请公布日期 |
1983.05.11 |
| 申请号 |
DE19813143071 |
申请日期 |
1981.10.30 |
| 申请人 |
BASF AG |
发明人 |
MEINELT,WERNER,ING.;MATTHIAS,KLAUS,DIPL.-ING.DR.;FRANZMANN,GERNOT,DIPL.-CHEM.DR.;PETRI,ROLF,DIPL.-ING.;KRAUS,FRIEDRICH,DIPL.-CHEM.DR. |
| 分类号 |
C08L101/00;C04B16/04;C08F6/00;C08J3/05;C08J3/12;C08L1/00;C08L23/00;C08L27/00;C08L31/00;C08L31/04;C08L33/00;C08L33/02;C08L61/00;C08L61/34;(IPC1-7):C08J3/12;C04B7/35;C04B13/24;C04B25/02;C08L39/06;C09J7/02 |
主分类号 |
C08L101/00 |
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