Invention Grant
- Patent Title: Method for marking mineral oils with amthraquinones
- Patent Title (中): 用蒽醌标记矿物油的方法
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Application No.: US513871Application Date: 1995-09-18
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Publication No.: US5663386APublication Date: 1997-09-02
- Inventor: Friedrich-Wilhelm Raulfs , Christos Vamvakaris
- Applicant: Friedrich-Wilhelm Raulfs , Christos Vamvakaris
- Applicant Address: DEX Ludwigshafen
- Assignee: BASF Aktiengesellschaft
- Current Assignee: BASF Aktiengesellschaft
- Current Assignee Address: DEX Ludwigshafen
- Priority: DEX4308643.9 19930318
- Main IPC: C10L1/232
- IPC: C10L1/232 ; C09B1/50 ; C09B1/51 ; C09B1/56 ; C09B67/22 ; C09B67/44 ; C10L1/00 ; C09B1/16
Abstract:
The invention discloses the use of anthraquinones of the formula ##STR1## where R.sup.3 is unsubstituted or substituted C.sub.1 -C.sub.18 -alkyl or unsubstituted or substituted phenyl for marking mineral oils. Also disclosed are the marked mineral oils and a method of detecting the anthraquinones in mineral oils.
Public/Granted literature
- US5009376A Seizure-fixing device of pipe by clamp member Public/Granted day:1991-04-23
Information query
