发明名称 |
CODED POLYMERIC MATERIAL AND METHOD |
摘要 |
<p>Polymeric materials, for example, vinyl materials contain an added trace amount of a compound which is detectable by an instrumental method of analysis in the absence of the step of freshly exposing a surface of the sample and without substantial interference from other ingredients in the vinyl material. The incorporation of the added trace compound allows for coding of the material and provides a means to later identify the manufacturer of the film without the need to affix more visible identification means thereto. C-4874</p> |
申请公布号 |
CA1148453(A) |
申请公布日期 |
1983.06.21 |
申请号 |
CA19800363934 |
申请日期 |
1980.11.04 |
申请人 |
STAUFFER CHEMICAL COMPANY |
发明人 |
CHRISTIE, WILLIAM F.;SMALHEISER, LAWRENCE A. |
分类号 |
C08K3/34;(IPC1-7):G01N23/00 |
主分类号 |
C08K3/34 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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