Patents by Inventor Klaus-Peter Michaelis

Klaus-Peter Michaelis 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).

  • Patent number: 4849466
    Abstract: Chlorine-containing polymer containing (a) at least one compound of the formula I ##STR1## in which R.sup.1 is hydrogen, C.sub.1 -C.sub.4 -alkyl, C.sub.5 -C.sub.6 -cycloalkyl, phenyl or phenyl which is substituted by C.sub.1 -C.sub.4 -alkyl or halogen, n is 1 or 2 and, if n is 1, R is C.sub.1 -C.sub.20 -alkyl, C.sub.1 -C.sub.20 -alkyl which is substituted by --OH or --SH, C.sub.2 -C.sub.20 -alkyl which is interrupted by ##STR2## phenyl, phenyl which is substituted by C.sub.1 -C.sub.4 -alkyl, benzyl, benzyl which is substituted by C.sub.1 -C.sub.4 -alkyl, C.sub.5 -C.sub.6 -cycloalkyl or --NR.sup.2 R.sup.3 in which R.sup.2 and R.sup.3 are identical or different and are as defined for R.sup.1, and, if n is 2, R is a direct bond, C.sub.1 -C.sub.10 -alkylene, C.sub.1 -C.sub.10 -alkylene which is substituted by phenyl, benzyl, --OH, C.sub.1 14 C.sub.4 -alkoxy, C.sub.1 -C.sub.20 -acyloxy, phenylsulfonyl or C.sub.1 -C.sub.4 -alkylsulfonyl or C.sub.2 -C.sub.10 -alkylene which is interrupted by ##STR3## in which R.sup.
    Type: Grant
    Filed: August 17, 1987
    Date of Patent: July 18, 1989
    Assignee: Ciba-Geigy Corporation
    Inventor: Klaus-Peter Michaelis
  • Patent number: 4743640
    Abstract: Compounds of formulae Ia and Ib ##STR1## wherein R.sup.1 is C.sub.6 -C.sub.22 alkyl, phenyl or phenyl which is substituted by one or two C.sub.1 -C.sub.9 alkyl groups, or is C.sub.5 -C.sub.7 cycloalkyl or a group of formula IIa or IIb ##STR2## or R.sup.1 is a group of formula IIIa or IIIb ##STR3## R.sup.2 and R.sup.3 are each independently of the other C.sub.1 -C.sub.20 alkyl, phenyl or phenyl which is substituted by one or two C.sub.1 -C.sub.9 alkyl groups, or are C.sub.5 -C.sub.7 cycloalkyl, and R.sup.4 is C.sub.2 -C.sub.12 alkylene, are suitable for stabilizing chlorinated polymers against light- and/or heat-induced degradation.
    Type: Grant
    Filed: October 20, 1986
    Date of Patent: May 10, 1988
    Assignee: Ciba-Geigy Corporation
    Inventors: Hermann O. Wirth, Klaus-Peter Michaelis
  • Patent number: 4727104
    Abstract: Compounds of formula I ##STR1## wherein R is --COOCH.sub.3, --COOC.sub.2 H.sub.5 or methyl, R.sub.1 is --COOR.sub.3, R.sub.2 is hydrogen, methyl or ethyl and R.sub.3 is C.sub.1 -C.sub.22 alkyl, are suitable for stabilizing organic polymers, in particular chlorinated thermoplastics, against the influence of heat and/or light.
    Type: Grant
    Filed: January 27, 1986
    Date of Patent: February 23, 1988
    Assignee: Ciba-Geigy Corporation
    Inventors: Wolfgang Wehner, Klaus-Peter Michaelis, Rainer Schneider
  • Patent number: 4435338
    Abstract: The compounds according to the invention correspond to the formula I ##STR1## in which R is a hydrocarbon radical, A is one of the groups --O.CO--, --O-- or ##STR2## (in which m is 0-30) and Q, depending on the definition of A, is a hydrocarbon radical, a P-containing radical, an N-heterocyclic group or a radical containing N-heterocyclic groups.The compounds according to the invention also include those which are formed by an addition reaction of an O,O-dialkyl dithiophosphate with an epoxidised soybean oil.The compounds according to the invention are very useful as lubricant additives.
    Type: Grant
    Filed: September 21, 1981
    Date of Patent: March 6, 1984
    Assignee: Ciba-Geigy Corporation
    Inventors: Klaus-Peter Michaelis, Rainer Schneider
  • Patent number: 4367304
    Abstract: Compounds of the formula I, II, III or IV ##STR1## wherein X is halogen, OH, --OR.sup.1, --OOCR.sup.2, --OOC--R.sup.4 --COOR.sup.3 or --N(R.sup.5)(R.sup.6), or the two X groups together form a group --O--R.sup.9 --O-- or --OOC--R.sup.9 --COO--, Y has one of the meanings given for X, or it is --NHR.sup.5, --NHNH.sub.2 or --NHNH-phenyl, Z has one of the meanings given for X, or is --SR, and R, R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.9 and R' are organic radicals having the meanings defined hereinbelow, are thermal stabilizers for chlorine-containing thermoplastics particularly for PVC. Their effect can be further intensified by the addition of co-stabilizers.
    Type: Grant
    Filed: November 4, 1980
    Date of Patent: January 4, 1983
    Assignee: Ciba-Geigy Corporation
    Inventors: Klaus-Peter Michaelis, Wolfgang Wehner, Holger Andreas, Horst Muller
  • Patent number: 4339383
    Abstract: The invention relates to alkanolamido-.beta.-carboxylic acid esters of the formula I ##STR1## A full definition of the above formula will be found in claim 1 of the specification. These compounds are useful stabilizers for chlorinated thermoplastics.
    Type: Grant
    Filed: July 2, 1980
    Date of Patent: July 13, 1982
    Assignee: Ciba-Geigy Corporation
    Inventors: Wolfgang Wehner, Klaus-Peter Michaelis, Rainer Schneider
  • Patent number: 4310454
    Abstract: Organo-tin compounds of the formula I ##STR1## wherein n is 1 or 2, R is hydrogen or a C.sub.1 -C.sub.18 acyl radical, X is oxygen or sulfur, and R' is C.sub.1 -C.sub.20 alkyl. These compounds are stabilizers for halogen-containing polymers. The starting materials for obtaining these compounds are also claimed.
    Type: Grant
    Filed: March 27, 1980
    Date of Patent: January 12, 1982
    Assignee: Ciba-Geigy Corporation
    Inventors: Klaus-Peter Michaelis, Horst Muller
  • 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
  • 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