Patents by Inventor Peter Micha

Peter Micha 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).

  • Novel organotin compounds
    Patent number: 4305867
    Abstract: Organotin compounds of the formula I ##STR1## wherein n is 1 or 2, and R is a C.sub.1 -C.sub.18 -acyl group, as stabilizers for halogen-containing polymers.
    Type: Grant
    Filed: December 3, 1979
    Date of Patent: December 15, 1981
    Assignee: Ciba-Geigy Corporation
    Inventors: Klaus-Peter Michaelis, Horst Muller
  • Organo-antimony compounds
    Patent number: 4303578
    Abstract: Organo-antimony compounds of the formula I ##STR1## wherein R is hydrogen or C.sub.1 -C.sub.18 acyl, R' is C.sub.1 -C.sub.20 alkyl or C.sub.1 -C.sub.18 acyl, and X is sulfur or oxygen. The compounds are stabilizers for halogen-containing polymers.
    Type: Grant
    Filed: March 27, 1980
    Date of Patent: December 1, 1981
    Assignee: Ciba-Geigy Corporation
    Inventor: Klaus-Peter Michaelis
  • Mercaptan as an additive for lubricants
    Patent number: 4260503
    Abstract: Epithio compounds or mercaptans of the formula I ##STR1## wherein X is an oxygen or sulfur atom, --CH.sub.2 --, --CH(R.sub.1)--, --COO--, --NH-- or --NR.sub.1 --, each of Y and Z is hydrogen or together they are a direct bond, Q is hydrogen if Y and Z together are a direct bond, or is --OH, --SH, --OR.sub.1, --SR.sub.1, --OOCR.sub.1, --S--CH.sub.2).sub.n OH, --S--CH.sub.2).sub.n COOR.sub.1, --NHR.sub.1 or --N(R.sub.1).sub.2, n is an integer from 1 to 10, each of R and R.sub.1 independently is a cyclic or acyclic hydrocarbon radical of aliphatic or aromatic character containing 4 to 30 carbon atoms which can be interrupted by oxygen or sulfur, with the proviso that the groups R and R.sub.1 contain a total number of 8 to 30 carbon atoms. These compounds have excellent suitability for use as additives for lubricants, especially as extreme pressure and antiwear additives.
    Type: Grant
    Filed: November 26, 1979
    Date of Patent: April 7, 1981
    Assignee: Ciba-Geigy Corporation
    Inventor: Peter Michaelis
  • Epithio compounds as additives for lubricants
    Patent number: 4217233
    Abstract: Epithio compounds or mercaptans of the formula I ##STR1## wherein X is an oxygen or sulfur atom, --CH.sub.2 --, --CH(R.sub.1)--, --COO--, --NH-- or --NR.sub.1 --, each of Y and Z is hydrogen or together they are a direct bond, Q is hydrogen if Y and Z together are a direct bond, or is --OH, --SH, --OR.sub.1, --SR.sub.1, --OOCR.sub.1, --S--CH.sub.2).sub.n OH, --S--CH.sub.2).sub.n COOR.sub.1, --NHR.sub.1 or --N(R.sub.1).sub.2, n is an integer from 1 to 10, each of R and R.sub.1 independently is a cyclic or acyclic hydrocarbon radical of aliphatic or aromatic character containing 4 to 30 carbon atoms which can be interrupted by oxygen or sulfur, with the proviso that the groups R and R.sub.1 contain a total number of 8 to 30 carbon atoms. These compounds have excellent suitability for use as additives for lubricants, especially as extreme pressure and antiwear additives.
    Type: Grant
    Filed: August 22, 1978
    Date of Patent: August 12, 1980
    Assignee: Ciba-Geigy Corporation
    Inventor: Peter Michaelis