Patents by Inventor John D. Spivack

John D. Spivack 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: 4075161
    Abstract: Ester and amides having the formula ##STR1## wherein R, R.sup.1 and R.sup.2 are independently lower alkyl or cycloalkyl groups, R.sup.3 is hydrogen, alkyl, cycloalkyl, alkylene, phenyl, phenyl substituted by alkyl groups, alkylthioethyl, thiobis-alkylene, alkyleneoxyalkylene, polyoxyalkylene or a polyvalent cyclic or acyclic hydrocarbon radical, R.sup.4 is hydrogen, lower alkyl, cycloalkyl, R.sup.5 is hydrogen, alkyl, phenyl, phenyl substituted by alkyl groups, alkylene, a polyvalent cyclic or acyclic hydrocarbon radical or alkyleneoxy-alkylene, A is lower alkylene, m is 1 to 4 and n is 1 to 6.The esters are prepared by usual esterification procedures from a suitable alcohol and an acid of the formula III ##STR2## or an acid halide or acid anhydride thereof. The higher alkyl esters can also be prepared from the lower alkyl ester, especially the methyl ester, by transesterification with a higher alkanol or polyol.
    Type: Grant
    Filed: June 7, 1976
    Date of Patent: February 21, 1978
    Assignee: Ciba-Geigy Corporation
    Inventors: John D. Spivack, Martin Dexter
  • Patent number: 4069200
    Abstract: The compounds are trialkylsubstituted hydroxybenzylphosphonates and phosphinates having the formula ##STR1## WHEREIN R, R.sup.1 and R.sup.2 are independently lower alkyl or cycloalkyl groups, R.sup.3 is alkyl, alkyl substituted with one halogen atom, phenyl, phenyl substituted with alkyl groups, alkoxy, alkoxy substituted with one halogen group, phenoxy, phenoxy substituted with alkyl groups, alkylthioethoxy, alkylpolyoxyalkylenoxy, R.sup.4 is alkyl, alkylsubstituted with one halogen atom, cycloalkyl, phenyl, phenyl substituted with alkyl groups alkylthioethyl, thiobis-alkylene, alkyleneoxyalkylene, polyoxyalkylene, alkylpolyoxyalkylene, alkylene, polyvalent cyclic or acyclic hydrocarbon radical, R.sup.5 and R.sup.6 are independently hydrogen, alkyl of 1 to 12 carbon atoms, R.sup.6 may also be the group Ic ##STR2## OR TOGETHER R.sup.5 and R.sup.6 represent the group Id ##STR3## R.sup.7 is hydrogen, alkyl or phenyl, A is lower alkylene and n is 1 to 4.
    Type: Grant
    Filed: March 19, 1976
    Date of Patent: January 17, 1978
    Assignee: Ciba-Geigy Corporation
    Inventor: John D. Spivack
  • Patent number: 4051104
    Abstract: Benzoyloxybenzoates having the formula ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are lower alkyl or cycloalkyl,X is oxygen or sulfur, andR.sup.5 is alkyl, aryl, alkaryl or hydrogenAre useful as stabilizers of organic materials such as polyolefins.
    Type: Grant
    Filed: March 28, 1975
    Date of Patent: September 27, 1977
    Assignee: Ciba-Geigy Corporation
    Inventors: John D. Spivack, John J. Luzzi
  • Patent number: 4049713
    Abstract: The compounds are esters and amides of trialkylhydroxyphenylalkanoic acid having the formula ##STR1## wherein R, R.sup.1 and R.sup.2 are independently lower alkyl or cycloalkyl groups, R.sup.3 is hydrogen, alkyl, cycloalkyl, alkylene, phenyl, phenyl substituted by alkyl groups, alkylthioethyl, thiobis-alkylene, alkyleneoxyalkylene, polyoxyalkylene or a polyvalent cyclic or acyclic hydrocarbon radical, R.sup.4 is hydrogen, lower alkyl, cycloalkyl, R.sup.5 is hydrogen, alkyl, phenyl, phenyl substituted with alkyl groups, alkylene, polyoxyalkylene or polyvalent cyclic or acyclic hydrocarbon radical, A is lower alkylene, m is 1 to 4 and n is 1 to 6.The compounds are useful as stabilizers for organic materials, especially polyolefins, which deteriorate upon exposure to light and heat.
    Type: Grant
    Filed: May 3, 1976
    Date of Patent: September 20, 1977
    Assignee: Ciba-Geigy Corporation
    Inventor: John D. Spivack
  • Patent number: 4049654
    Abstract: The compounds are 2,3,5-trialkylsubstituted hydroxy benzyl isocyanurates having the formula ##STR1## where R.sub.a is a 2,3,5-trialkylsubstituted hydroxybenzyl group of the formula II or hydrogen, and R.sub.b is a 2,3,5-trialkylsubstituted hydroxybenzyl group of formula II ##STR2## wherein R.sup.1 and R.sup.2 are alkyl or cycloalkyl groups, and R.sup.3 is hydrogen or alkylOne method for making the compounds of this invention is by reacting a 2,3,6-trialkyl-4-(dimethylamino)phenol with cyanuric acid.The compounds are useful as stabilizers of organic materials, especially polyolefins, which deteriorate upon exposure to light and heat.
    Type: Grant
    Filed: July 23, 1975
    Date of Patent: September 20, 1977
    Assignee: Ciba-Geigy Corporation
    Inventor: John D. Spivack
  • Patent number: 4038249
    Abstract: Metal salts of benzoyloxybenzoates having the formula ##STR1## wherein R.sup.1 and R.sup.2 are lower alkyl or cycloalkyl,R.sup.3 and R.sup.4 are hydrogen, lower alkyl or cycloalkyl,M is a metal or an alkylmetal moiety, andm is an integer from 1 to 4,Are useful as stabilizers of organic materials such as polyolefins.
    Type: Grant
    Filed: July 30, 1975
    Date of Patent: July 26, 1977
    Assignee: Ciba-Geigy Corporation
    Inventors: John D. Spivack, John J. Luzzi
  • Patent number: 4032562
    Abstract: Esters of polyalkyleneglycols with 3,5-dialkyl-4-hydroxyphenylalkanoic acids were prepared by simple esterification techniques. An example of such compounds is methoxytriethyleneglycol 3-(3',5'-di-t-butyl-4'-hydroxyphenyl)propionate. These compounds are useful as stabilizers of organic substrates subject to oxidative and thermal degradation.
    Type: Grant
    Filed: October 24, 1975
    Date of Patent: June 28, 1977
    Assignee: Ciba-Geigy Corporation
    Inventors: Martin Dexter, John D. Spivack, David Herbert Steinberg
  • Patent number: 3988363
    Abstract: Ester and amides having the formula ##SPC1##Wherein R, R.sup.1 and R.sup.2 are independently lower alkyl or cycloalkyl groups, R.sup.3 is hydrogen, alkyl, cycloalkyl, alkylene, phenyl, phenyl substituted by alkyl groups, alkylthioethyl, thiobis-alkylene, alkyleneoxyalkylene, polyoxyalkylene or a polyvalent cyclic or acyclic hydrocarbon radical, R.sup.4 is hydrogen, lower alkyl, cycloalkyl, R.sup.5 is hydrogen, alkyl, phenyl, phenyl substituted by alkyl groups, alkylene, a polyvalent cyclic or acyclic hydrocarbon radical or alkyleneoxyalkylene, A is lower alkylene, m is 1 to 4 and n is 1 to 6.The esters are prepared by usual esterification procedures from a suitable alcohol and an acid of the formula III ##SPC2##or an acid halide or acid anhydride thereof. The higher alkyl esters can also be prepared from the lower alkyl ester, especially the methyl ester, by transesterification with a higher alkanol or polyol.
    Type: Grant
    Filed: August 2, 1974
    Date of Patent: October 26, 1976
    Assignee: Ciba-Geigy Corporation
    Inventors: John D. Spivack, Martin Dexter
  • Patent number: 3984460
    Abstract: The compounds are esters and amides of trialkylhydroxyphenylalkanoic acid having the formula ##SPC1##Wherein R, R.sup.1 and R.sup.2 are independently lower alkyl or cycloalkyl groups, R.sup.3 is hydrogen, alkyl, cycloalkyl, alkylene, phenyl, phenyl substituted by alkyl groups, alkylthioethyl, thiobis-alkylene, alkyleneoxyalkylene, polyoxyalkylene or a polyvalent cyclic or acyclic hydrocarbon radical, R.sup.4 is hydrogen, lower alkyl, cycloalkyl, R.sup.5 is hydrogen, alkyl, phenyl, phenyl substituted with alkyl groups, alkylene, polyoxyalkylene or polyvalent cyclic or acyclic hydrocarbon radical, A is lower alkylene, m is 1 to 4 and n is 1 to 6.The ester compounds of this invention are prepared via usual esterification procedures from a suitable alcohol and an acid of the formula I ##SPC2##or an acid halide or acid anhydride thereof.
    Type: Grant
    Filed: July 23, 1974
    Date of Patent: October 5, 1976
    Assignee: Ciba-Geigy Corporation
    Inventor: John D. Spivack
  • Patent number: 3979360
    Abstract: Benzoyloxybenzamides having the formula ##SPC1##WhereinR.sup.1 and R.sup.2 are lower alkyl or cycloalkyl,R.sup.3 and R.sup.4 are hydrogen, lower alkyl or cycloalkyl,R.sup.5 is hydrogen or alkyl,R.sup.6 is alkyl when n is 1 and alkylene when n is 2 or greaterAre useful as stabilizers of organic materials such as polyolefins.
    Type: Grant
    Filed: February 24, 1975
    Date of Patent: September 7, 1976
    Assignee: Ciba-Geigy Corporation
    Inventors: John D. Spivack, John J. Luzzi
  • Patent number: 3962377
    Abstract: The compounds are trialkylsubstituted hydroxybenzylphosphonates and phosphinates having the formula ##SPC1##Wherein R, R.sup.1 and R.sup.2 are independently lower alkyl or cycloalkyl groups, R.sup.3 is alkyl, alkyl substituted with one halogen atom, phenyl, phenyl substituted with alkyl groups, alkoxy, alkoxy substituted with one halogen group, phenoxy, phenoxy substituted with alkyl groups, alkylthioethoxy, alkylpolyoxyalkylenoxy, R.sup.4 is alkyl, alkylsubstituted with one halogen atom, cycloalkyl, phenyl, phenyl substituted with alkyl groups alkylthioethyl, thiobis-alkylene, alkyleneoxyalkylene, polyoxyalkylene, alkylpolyoxyalkylene, alkylene, polyvalent cyclic or acyclic hydrocarbon radical, R.sup. 5 and R.sup. 6 are independently hydrogen, alkyl of 1 to 12 carbon atoms, R.sup.6 may also be the group Ic ##SPC2##Or together R.sup.5 and R.sup.6 represent the group Id ##SPC3##R.sup.7 is hydrogen, alkyl or phenyl, A is lower alkylene and n is 1 to 4.
    Type: Grant
    Filed: July 26, 1974
    Date of Patent: June 8, 1976
    Assignee: Ciba-Geigy Corporation
    Inventor: John D. Spivack
  • Patent number: 3962376
    Abstract: The compounds are trialkylsubstituted hydroxyphenylalkanephosphinates and phosphonates having the formula ##SPC1##Wherein R, R.sup.1 and R.sup.2 are independently lower alkyl or cycloalkyl groups, R.sup.3 is alkyl, alkyl substituted with one halogen atom, phenyl, phenyl substituted with alkyl groups, alkoxy, alkoxy substituted with one halogen groups, phenoxy, phenoxy substituted with alkyl groups, alkylthioethoxy, alkyloxalkylenoxy, R.sup.4 is alkyl, alkyll substituted with one halogen atom, cycloalkyl, phenyl, phenyl substituted with alkyl groups, alkylthioethyl, thiobisalkylene, alkylene, polyvalent cyclic or acyclic hydrocarbon radical, A is lower alkylene and n is 1 to 4.These compounds are usually prepared by reacting the trialkylsubstituted hydroxybenzyl or hydroxyphenylalkyl halide with the appropriate trialkyl or triaryl phosphite or appropriate substituted phosphinite.The compounds are useful as stabilizers of organic materials subject to oxidative, thermal and UV light deterioration.
    Type: Grant
    Filed: July 22, 1974
    Date of Patent: June 8, 1976
    Assignee: Ciba-Geigy Corporation
    Inventors: John D. Spivack, Martin Dexter
  • Patent number: 3944594
    Abstract: Compounds of the formula: ##EQU1## WHEREIN X is oxygen or sulfur,a is an integer from 2 to 6,b is an integer from 3 to 40, andR is ##SPC1##WhereinR.sub.1 is an alkyl group of 1 to 8 carbon atoms,R.sub.2 is hydrogen or an alkyl group of 1 to 8 carbon atoms, andX is an integer from 0 to 6Are useful as antioxidants for organic materials normally subject to oxidative deterioration, such as polyacetals, polypropylene, and nylon, in amounts of from about 0.005 to about 5% by weight of the composition.
    Type: Grant
    Filed: November 23, 1973
    Date of Patent: March 16, 1976
    Assignee: Ciba-Geigy Corporation
    Inventors: Eduard K. Kleiner, John D. Spivack
  • Patent number: 3935164
    Abstract: Organic polymeric materials normally subject to oxidative and ultraviolet light deterioration are stabilized by incorporating therein a nickel 3,5-bis-dialkyl-4-hydroxybenzoate, an ultraviolet light absorber such as benzophenone or a benzotriazole, and optionally a primary phenolic antioxidant with or without a secondary sulfur containing antioxidant.
    Type: Grant
    Filed: May 28, 1974
    Date of Patent: January 27, 1976
    Assignee: Ciba-Geigy Corporation
    Inventors: John d. Spivack, Peter P. Klemchuk
  • Patent number: 3935163
    Abstract: Organic polymeric materials normally subject to oxidative and ultraviolet light deterioration are stabilized by incorporating therein a nickel bis-3,5-dialkyl-4-hydroxybenzoate, an ultraviolet light absorber such as a benzophenone or a benzotriazole, a light stabilizer such as a p-hydroxybenzoate ester and optionally a primary phenolic antioxidant with or without a secondary sulfur containing antioxidant.
    Type: Grant
    Filed: May 28, 1974
    Date of Patent: January 27, 1976
    Assignee: Ciba-Geigy Corporation
    Inventors: John D. Spivack, Peter P. Klemchuk