Patents Examined by Cynthia A. Prezlak
  • 2,4,6-trifunctionalized phenols
    Patent number: 4741846
    Abstract: Novel compounds of the formula I ##STR1## are described. The radicals R.sup.1, R.sup.2 and R.sup.3 are hydroxyl-substituted alkyl, --C(R.sup.4 R.sup.5)--(CHR.sup.6).sub.m --W, --(CH.sub.2).sub.2 --OCOR.sup.10 or ##STR2## and W is --COR.sup.7, --COOR.sup.7, --CON(R.sup.9 R.sup.15) or CN. The other radicals are customary hydrocarbon radicals.The novel substances can be employed as stabilizers for organic polymers or for lubricants.
    Type: Grant
    Filed: July 24, 1985
    Date of Patent: May 3, 1988
    Assignee: CIBA-GEIGY Corporation
    Inventor: Samuel Evans