Patents by Inventor Simon C. Brown

Simon C. Brown has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Process for the preparation of polyisobutene amines and fuel compositions comprising said polyisobutene amines
    Patent number: 5124484
    Abstract: A process for the preparation of a polyisobutene amine, in particularly a polyisobutene amine of formula (I): ##STR1## comprises reacting a carbonyl funtionalized polyisobutene [PIB]--(CO)R and an amine H.sub.2 NR.sup.1 and hydrogenating the product of the reaction between said carbonyll functionalized polyisobutene and said amine, where PIB is a polyisobutenyl group,R=H, methyl or vinyl,R.sup.1 =C.sub.1 -C.sub.20 alkyl group or --(CHR.sup.2).sub.n [X(CH.sub.2).sub.m ].sub.p X.sup.1 R.sup.3R.sup.2 =H or methyln=an integer of 1-4m=an integer of 2-4p=0, or an integer of 1-10R.sup.3 =H or C.sub.1 -C.sub.10 alkylXm X.sup.1 =O or NR.sup.4R.sup.4 =H, C.sub.1 -C.sub.10 alkyl group, or [(CH.sub.2).sub.q X.sup.2 R.sup.5 ]q=an integer of 2-4R.sup.5 is H, C.sub.1 -C.sub.10 alkyl groupX.sup.2 is 0 or NHeach of X and X.sup.1 may be the same or may be different and when p>1 each of the repeating units [X(CH.sub.2).sub.m ] may be the same or may be different.Polyamines or alcoholamines are preferred amines.
    Type: Grant
    Filed: November 19, 1991
    Date of Patent: June 23, 1992
    Assignee: BP Chemicals (Additives) Limited
    Inventors: Simon C. Brown, Michael J. Clarke