THIOUREA-ACYLATED POLYAMINE REACTION PRODUCT
First Claim
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1. THE PROCESS COMPRISING REACTING (A) A POLYISOBUTENYLSUBSTITUTED SUCCINIC ACID ACYLATED ETHYLENE POLYYAMINE MIXTURE CHARACTERIZED BY AN EQUIVALENT RATIO OF ACID TO POLYAMINE OF ABOUT 1:
- 1 TO 1;
1.5, WHEREIN THE POLYYISOBUTENYL SUBSTITUENT HAS AN AVERAGE MOLECULAR WEIGHT OF ABOUT 800-1,100, AND (B) THIOUREA, THE TOTAL AMOUNT OF THIOUREA EMPLOYED IN THE REACTION MIXTURE BEING SUCH THAT THE RATIO OF EQUIVALENTS OF THIOUREA TO ACYLATED ETHYLENE POLYAMINE IS ABOUT 1-2;
1-1.5.
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Abstract
Process for post-treating certain ashless dispersants prepared from high molecular weight carboxylic acid acylating agents and polyamines with thiourea and certain reaction products thereby produced. The products are useful additives for lubricants and fuels.
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1 Claim
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1. THE PROCESS COMPRISING REACTING (A) A POLYISOBUTENYLSUBSTITUTED SUCCINIC ACID ACYLATED ETHYLENE POLYYAMINE MIXTURE CHARACTERIZED BY AN EQUIVALENT RATIO OF ACID TO POLYAMINE OF ABOUT 1:
- 1 TO 1;
1.5, WHEREIN THE POLYYISOBUTENYL SUBSTITUENT HAS AN AVERAGE MOLECULAR WEIGHT OF ABOUT 800-1,100, AND (B) THIOUREA, THE TOTAL AMOUNT OF THIOUREA EMPLOYED IN THE REACTION MIXTURE BEING SUCH THAT THE RATIO OF EQUIVALENTS OF THIOUREA TO ACYLATED ETHYLENE POLYAMINE IS ABOUT 1-2;
1-1.5.
- 1 TO 1;
Specification
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Current AssigneeWilliam C. Gergel
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Original AssigneeWilliam C. Gergel
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InventorsGergel, William C.
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Primary Examiner(s)Cannon, W.
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Application NumberUS05/069,160Time in Patent Office1,623 DaysField of Search252/47.5,51.5A 260/239.3R,309.7,326.3,552R,561SUS Class Current540/460CPC Class CodesC08G 73/00 Macromolecular compounds ob...C10L 1/2493 compounds of uncertain form...C10M 1/08 with additivesC10M 2221/00 Organic macromolecular comp...
