Ashless dispersants

Details Ashless dispersants Ashless dispersants

1993-08-06

1994-03-22

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...

5253296, 5253299, 525382, C08F 832

Patent

active

052965600

ABSTRACT:
According to the present invention, improved dispersants are provided which comprise adducts of (A) polymer-substituted mono- and dicarboxylic acid or anhydrides and (B) bis(para-amino cyclohexyl) methane oligomers, wherein the reactants are contacted in a reaction zone in the substantial absence of polar organic solvents.

REFERENCES:
patent: 3959374 (1976-05-01), Brennan et al.
patent: 4234435 (1980-11-01), Meinhardt et al.
patent: 4844827 (1989-07-01), Schaffhausen

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