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United States Patent 5,292,813
Patil, et. al.Mar. 8, 1994

Fullerene-grafted polymers and processes of making

Inventors: Patil; Abhimanyu O. (Westfield, NJ); Schriver; George W. (Somerville, NJ); Lundberg; Robert D. (Bridgewater, NJ).
Assignee: Exxon Research & Engineering Co. (Florham Park, NJ).
Appl. No.: 955,649
Filed: Oct. 2, 1992

Intl. Cl.:C08L 23/36; C08F 210/16;
U.S. Cl.:525/240.; 525/192.;
Field of Search:240;285;326.1;326.6;328.2;330.7;331.4;331.7;356;380;381;382;328.3

References Cited

U.S. Patent Documents
3,215,707Nov., 1965Rense 548/506
3,231,587Jan., 1966Rense 549/255
3,272,746Sept., 1966LeSueur 252/475
3,275,554Sept., 1966Wagenaar 252/ 50
3,361,673Jan., 1968Stuart 252/ 51 .5A
3,401,118Sept., 1968Benoit 252/ 51 .5A
3,438,757Apr., 1969Honnen 44/335
3,442,808May, 1969Traise 252/ 49 .6
3,565,804Feb., 1971Honnen 252/ 50
3,912,764Oct., 1975Palmer, Jr. 549/255
3,969,330Jul., 1976Lasis et al. 526/ 14
4,000,353Dec., 1976Gardiner 536/ 20
4,110,349Aug., 1978Cohen 549/255
4,234,435Nov., 1980Meinhardt 252/ 51 .5A
4,820,432Apr., 1989Lundberg 252/ 51 .5A
4,828,742May, 1989Lundberg 252/ 51 .5R
4,839,073Jun., 1989Gutierrez 552/ 51 .5A
4,987,200Jan., 1991Datta 526/ 75
5,030,370Jul., 1991Patil 252/ 50

Other References

Primary Examiner: Schofer; Joseph L.
Assistant Examiner: Nagumo; Mark


This invention relates to novel compositions of matter, fullerene graft amine-containing polymers, and the process of making them. The graft is made by reacting a fullerene with a primary or secondary amine-containing polymer, preferably a hydrocarbon containing polymer in effective amounts, typically from about 10:1 to about 1:10 mole ratio of reactive amine in polymer to fullerene for a time and under conditions effective to produce the compositions. Suitable starting polymers are those containing primary or secondary amino groups, e.g., EPDM amine, PIB-amine, PIBSA-PAM, and Mannich based polymers. The preferred polymers are oil soluble, as the novel compositions of that type may be used as viscosity modifiers and lube additives. The crosslinked compositions may be used in essentially any application as the original polymer, but in which an increase in tensile strength would be desired.

17 Claims, No Drawings

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