发明名称 TOBACCO SMOKE FILTER MATERIAL AND PROCESS FOR PRODUCTION THEREOF
摘要 <p>Disclosed is a novel process of preparing tobacco smoke filter material, wherein an acidic compound such as citric acid is dissolved in a cellulose acetate spinning solution prior to spinning the filaments of the filter material.</p>
申请公布号 WO1991012737(A1) 申请公布日期 1991.09.05
申请号 US1991001227 申请日期 1991.02.25
申请人 发明人
分类号 主分类号
代理机构 代理人
主权项
地址