发明授权
- 专利标题: Lubricated sheet product and lubricant composition
- 专利标题(中): 润滑板产品和润滑剂组成
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申请号: US09271423申请日: 1999-03-17
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公开(公告)号: US06207286B1公开(公告)日: 2001-03-27
- 发明人: James R. Anglin , Donald R. Smith
- 申请人: James R. Anglin , Donald R. Smith
- 主分类号: B32B1508
- IPC分类号: B32B1508
摘要:
There is disclosed a metal sheet product, more particularly formed food container stock and/or industrial sheet product, which has been treated with an ester-free, lubricant composition that is suitable for direct food contact. This composition consists essentially of: (i) about 10-90 wt. % of a polyalphaolefin; (ii) about 10-90 wt. % of an oleic acid; (iii) about 0-60 wt. % of an isostearic acid; and preferably, about 10-35 wt. % isostearic acid. It should be noted that especially good smudge testing results were observed with the presence of oleic acid. In alternative embodiments, the lubricant composition further includes: (iv) up to about 5 wt. % of an antioxidant, preferably about 0.1-3 wt. % butylated hydroxytoluene; and (v) up to about 10 wt. % of a conductivity enhancer, such as about 2-7 wt. % lecithin. When applied in total deposited weights of about 0.1-30 mg/ft2 per side, this invention produces formed food container stock or industrial sheet having improved formability and relatively lower smudge results when compared to its fatty acid and ester-containing alternatives.
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