发明授权
- 专利标题： Method for production of coated paper with extreme whiteness
- 专利标题（中）： 生产具有极度白度的涂布纸的方法
-
申请号： US10486105申请日： 2002-08-07
-
公开(公告)号： US07641765B2公开(公告)日： 2010-01-05
- 发明人: Thierry Blum , Friedrich Linhart , Stephan Frenzel
- 申请人： Thierry Blum , Friedrich Linhart , Stephan Frenzel
- 申请人地址： DE Ludwigshafen
- 专利权人： BASF Aktiengesellschaft
- 当前专利权人： BASF Aktiengesellschaft
- 当前专利权人地址： DE Ludwigshafen
- 代理机构： Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- 优先权： DE10138631 20010813
- 国际申请： PCT/EP02/08813 WO 20020807
- 国际公布： WO03/016624 WO 20030227
- 主分类号： D21H23/22
- IPC分类号： D21H23/22 ; D21H23/76 ; D21H21/30 ; D21H19/80
摘要：
Paper coated with a coating slip containing at least one optical brightener is produced by a process in which base paper or precoated paper is treated, before application of the coating slip containing optical brightener, with at least one substance which enhances the efficiency of optical brighteners.
公开/授权文献
信息查询
