Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1994-11-30
1996-12-24
Lipman, Bernard
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525381, 508454, C08F 832
Patent
active
055874320
ABSTRACT:
Novel ashless dispersants that have reduced reactivity toward fluoroelastomers are described. They are oil-soluble products obtained by a process which comprises reacting (i) a long chain succinic acylating agent wherein the long chain is derived from a polyolefin with (ii) an alkoxylated diethylene triamine having an average of from 1 to 2 N-substituted C.sub.2 or C.sub.3 hydroxyalkyl groups per molecule. These reactants being employed in proportions of at least 2 moles of the acylating agent per mole of the alkoxylated diethylene triamine, with the proviso that where the average of N-substituted C.sub.2 or C.sub.3 hydroxyalkyl groups is 1.7 or more, the proportions are such that there are more than 2 moles of the acylating agent per mole of the alkoxylated diethylene triamine.
REFERENCES:
patent: 5137980 (1992-08-01), DeGonia et al.
patent: 5241003 (1993-08-01), DeGonia et al.
Ethyl Petroleum Additives Limited
Lipman Bernard
Rainear Dennis H.
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