发明授权
- 专利标题: Method for the production of chromium phosphate coatings
- 专利标题(中): 生产磷酸铬涂料的方法
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申请号: US689197申请日: 1985-01-07
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公开(公告)号: US4668305A公开(公告)日: 1987-05-26
- 发明人: David Y. Dollman , Mark W. McMillen
- 申请人: David Y. Dollman , Mark W. McMillen
- 申请人地址: PA Ambler
- 专利权人: Amchem Products, Inc.
- 当前专利权人: Amchem Products, Inc.
- 当前专利权人地址: PA Ambler
- 主分类号: C23C22/86
- IPC分类号: C23C22/86 ; C23C22/33 ; C23C22/38
摘要:
The life of chromium phosphate coating baths is extended by at least fully restoring depleted Cr.sup.VI ; bath efficiencies are significantly improved.
公开/授权文献
- US5199521A Lawn mower having passages for engine cooling air 公开/授权日:1993-04-06
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