Matting agent based on aggregated silica
    1.
    发明授权
    Matting agent based on aggregated silica 失效
    基于聚集二氧化硅的消光剂

    公开(公告)号:US06103004A

    公开(公告)日:2000-08-15

    申请号:US945513

    申请日:1998-04-06

    摘要: The invention relates to an aggregated silica gel which has been produced from silica gel particles having a particle size of 1 to 20.mu., a surface of 200 to 1000 m.sup.2 /g and a specific pore volume of 0.4 to 2.5 ml/g and a binding agent selected from synthetic or natural phyllosilicate, pyrogenic silicon dioxide and organic polymers soluble in water or dispersible in water. Aggregation takes place by spray-drying a suspension having 1 to 25% solids. The product is suitable as a matting agent for coatings, as an antiblocking agent for polymer films and as a beer clarifying agent.

    摘要翻译: PCT No.PCT / EP96 / 01682 Sec。 371日期:1998年4月6日 102(e)1998年4月6日PCT 1996年4月23日PCT PCT。 出版物WO96 / 34062 日期:1996年10月31日本发明涉及由硅胶粒子制成的凝集硅胶,其粒径为1〜20μm,表面积为200〜1000m 2 / g,比孔体积为0.4〜2.5ml / g和选自合成或天然页硅酸盐,热解二氧化硅和可溶于水或可分散在水中的有机聚合物的粘合剂。 聚集通过喷雾干燥具有1至25%固体的悬浮液进行。 该产品适合用作涂料消光剂,作为聚合物膜的防粘连剂和啤酒澄清剂。