Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1996-11-01
1998-07-14
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...
5253337, 525371, 525378, 525379, 525383, C08F 832
Patent
active
057805547
ABSTRACT:
A saturated polymer having a terminal aldehyde or hydroxy substituent which may be used directly or in a derivative form as a dispersant for both fuel and lubricating oil compositions, wherein the saturated polymer has a M.sub.n of about 300 to 10,000, and is derived from a polyolefin which is derived from a monomer of the formula H.sub.2 C.dbd.CHR.sup.4, wherein R.sup.4 is hydrogen or a straight or branched chain alkyl radical, and wherein the polyolefin has at least about 30% terminal vinylidene unsaturation. Particularly desirable amine derivatives can be formed by either a single step aminomethylation process or a two step hydroformylation and reductive amination process.
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Emert Jacob
Horvath Istvan T.
Schlosberg Richard H.
Thaler Warren A.
Young David A.
Bakun E. C.
Exxon Chemical Patents Inc.
Lipman Bernard
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