Process for preparing polyalkenyl substituted C.sub.4 to C.sub.1

Details Process for preparing polyalkenyl substituted C.sub.4 to C.sub.1 Process for preparing polyalkenyl substituted C.sub.4 to C.sub.1

1996-02-09

1998-07-07

Acquah, Samuel A.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

528271, 526 72, 526 89, 5263182, 5263486, 525 55, 525 58, 525 88, 525 95, 524745, C08K 501, C08F 200, C08G 6348

Patent

active

057770255

ABSTRACT:
A low-sediment, low-tar, chlorine-free thermal process for preparing oil-soluble polyalkenyl derivatives of monounsaturated C.sub.4 -C.sub.10 dicarboxylic acid producing compounds is disclosed. The process involves reacting the dicarboxylic acid producing compound with a polyalkene at high temperature and under high inert gas partial pressure in the presence of a sediment-inhibiting amount of hydrocarbyl substituted sulfonic acid. The polyalkenyl derivatives are useful per se as additives in lubricating oils, functional fluids, and fuels and are also useful as intermediates in the preparation of other products (e.g., succinimides) useful as additives in lubricating oils, functional fluids, and fuels.

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