发明授权
US08354462B2 Heat stabilizers containing hydrotalcite particles with specific zeta potentials that demonstrate improved processing and performance in molded vinyl compounds
有权
包含具有特定ζ电位的水滑石颗粒的热稳定剂，其表现出改进的模塑乙烯基化合物的加工和性能
- 专利标题： Heat stabilizers containing hydrotalcite particles with specific zeta potentials that demonstrate improved processing and performance in molded vinyl compounds
- 专利标题（中）： 包含具有特定ζ电位的水滑石颗粒的热稳定剂，其表现出改进的模塑乙烯基化合物的加工和性能
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申请号： US12626986申请日： 2009-11-30
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公开(公告)号： US08354462B2公开(公告)日： 2013-01-15
- 发明人: Paulette Baker , Bernhard Georg Pelzl , Herbert Schrunner
- 申请人： Paulette Baker , Bernhard Georg Pelzl , Herbert Schrunner
- 申请人地址： AT Arnoldstein
- 专利权人： Chemson Polymer Additives AG
- 当前专利权人： Chemson Polymer Additives AG
- 当前专利权人地址： AT Arnoldstein
- 代理机构： Wood, Herron & Evans, LLP
- 主分类号： C08K5/00
- IPC分类号： C08K5/00 ; C08K5/09
摘要：
Particulate solid heat stabilizer compositions for vinyl halide polymers are provided having about 30% to 90% by weight hydrotalcite particles represented by a sigmoidal curve on a cartesian coordinate plot of zeta potential (mV) versus pH. The curve has negative zeta potential values balanced against positive zeta potential values over a pH range and an inflection point between a pH of about 3 about 6 representing the isoelectric point (IEP) between said negative and positive zeta potential values. The stabilizer compositions are essentially free flowing, storage stable, and processable upon mixing components of the composition for blending with a vinyl halide polymer in effective amounts to confer heat stabilizing effectiveness upon said polymer.
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