The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 31, 1995
Filed:
Apr. 19, 1994
Stanley J Brois, Westfield, NJ (US);
Abhimanyu O Patil, Westfield, NJ (US);
Wolfgang W Schulz, Lebanon, NJ (US);
Chang S Hsu, Bridgewater, NJ (US);
Richard T Garner, Berkeley Heights, NJ (US);
Exxon Research & Engineering Co., Florham Park, NJ (US);
Abstract
This invention relates to novel compositions of matter comprising free radical adducts of a fullerene with one or more saturated hydrocarbons having a number average molecular weight ranging from about 200 to about ten million. Attachment of saturated hydrocarbons to as many as fourteen sites on the fullerene surface can be achieved via free radical initiated reactions. Fullerenes also add to saturated hydrocarbons with functional groups selected from the group consisting of hydroxy, carboxy, and carboalkoxy radicals in the presence of a free radical initiator. Said radical adducts of substantially saturated hydrocarbons with fullerenes react further with alkylamines and polyamines to produce new compositions. The radical adducts, and their aminated derivatives are useful as dispersants and viscosity modifiers in lubricants. In the presence of free radical initiators, said fullerenes can also crosslink substantially saturated polymers having number average molecular weight ranging from about 50,000 to about 500,000. The crosslinked polymers, are useful as new membranes and composites.