发明授权
US4481328A Pulverulent polymer composition, a process for its preparation and
adhesive based thereon
失效
粉末聚合物组合物，其制备方法和基于其的粘合剂
- 专利标题： Pulverulent polymer composition, a process for its preparation and adhesive based thereon
- 专利标题（中）： 粉末聚合物组合物，其制备方法和基于其的粘合剂
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申请号： US339756申请日： 1982-01-15
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公开(公告)号： US4481328A公开(公告)日： 1984-11-06
- 发明人: Albrecht Harreus , Eduard Kaiser , Detlev Seip , Wolfgang Zimmermann
- 申请人： Albrecht Harreus , Eduard Kaiser , Detlev Seip , Wolfgang Zimmermann
- 申请人地址： DEX Frankfurt
- 专利权人： Hoechst Aktiengesellschaft
- 当前专利权人： Hoechst Aktiengesellschaft
- 当前专利权人地址： DEX Frankfurt
- 优先权： DEX3101413 19810117
- 主分类号： C08L31/00
- IPC分类号： C08L31/00 ; C08J3/12 ; C08K3/36 ; C08K9/06 ; C08L31/02 ; C08L31/04 ; C09D5/00 ; C09D131/04 ; C09J131/04 ; C08J5/02
摘要：
A pulverulent polymer composition which is readily pourable, has a low tendency to form dust and has good stability on storage is composed of a mixture of a vinyl ester polymer and a small proportion of a hydrophobic silica. The composition is prepared by spray drying an aqueous vinyl ester polymer dispersion in the presence of a hydrophobic silica. The silica is preferably a product from the reaction of a hydrophilic silica with an organochlorosilane. The composition can be redispersed in water and the films produced from such dispersions are transparent; they are suitable for the production of paints, glues and adhesives.
公开/授权文献
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