发明授权
US4298428A Use of additives in pulp bleaching processes to preserve pulp strength
失效
在纸浆漂白工艺中使用添加剂以保持纸浆强度
- 专利标题: Use of additives in pulp bleaching processes to preserve pulp strength
- 专利标题(中): 在纸浆漂白工艺中使用添加剂以保持纸浆强度
-
申请号: US176230申请日: 1980-08-07
-
公开(公告)号: US4298428A公开(公告)日: 1981-11-03
- 发明人: Michael D. Breslin , David R. Cosper
- 申请人: Michael D. Breslin , David R. Cosper
- 申请人地址: IL Oak Brook
- 专利权人: Nalco Chemical Company
- 当前专利权人: Nalco Chemical Company
- 当前专利权人地址: IL Oak Brook
- 主分类号: D21C9/10
- IPC分类号: D21C9/10 ; D21C3/18
摘要:
Improved pulp strength and brightness of chemically produced pulp can be obtained by treating the pulp with the addition of 0.05-0.5% based on the weight of the dry fiber of certain amine materials in the hypochlorite bleaching stage.
公开/授权文献
- US5444221A High-frequency induction heating apparatus for rocker arms 公开/授权日:1995-08-22
信息查询