发明名称 |
METHOD FOR PRODUCING AQUEOUS STYRENE-BUTADIENE POLYMER DISPERSIONS |
摘要 |
The invention relates to a method for producing an aqueous styrene-butadiene polymer dispersion by carrying out a radical aqueous emulsion polymerization of a monomer mixture M containing: 40 to 80 wt. % of styrene depicted as Monomer M1; 20 to 60 wt. % of butadiene depicted as monomer M2, and; 0 to 40 wt. %, with regard to 100 wt. % of the monomers, of ethylenically unsaturated comonomers M3 that differ from styrene and butadiene. The polymerization is carried out according to a monomer feeding method in the presence of 0.05 to 0.5 wt. %, with regard to 100 wt. % of the monomers, of at least one hydrocarbon KW selected among compounds having 6 to 20 C atoms that form a pentadienyl radical or a 1-phenylallyl radical when a hydrogen atom is abstracted, and the .alpha.-methylstyrene dimer. The inventive method is characterized in that the monomers to be polymerized are introduced within three hours of the polymerization reaction.
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申请公布号 |
CA2461672(C) |
申请公布日期 |
2011.03.15 |
申请号 |
CA20022461672 |
申请日期 |
2002.09.30 |
申请人 |
BASF AKTIENGESELLSCHAFT |
发明人 |
MANDERS, LAMBERTUS;WIRTH, THOMAS;GASCHLER, WOLFGANG;KROENER, HUBERTUS |
分类号 |
C08F212/08;C08F2/38;C08F236/06 |
主分类号 |
C08F212/08 |
代理机构 |
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地址 |
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