Patents by Inventor Peter J. Schirmann

Peter J. Schirmann 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).

  • Non-migrating 1-hydrocarbyloxy hindered amine derivatives as polymer stabilizers
    Patent number: 5574162
    Abstract: 1-Hydrocarbyloxy substituted hindered amine compounds which also contain a reactive functional group such as hydroxy, amino, oxirane or carboxyl can be chemically attached to selected polymer substrates by condensation reactions to give polymers containing a chemically-bonded, non-migrating stabilizer having excellent stabilization efficacy for protecting said polymer substrate from the adverse effects of actinic light.
    Type: Grant
    Filed: May 31, 1995
    Date of Patent: November 12, 1996
    Assignee: Ciba-Geigy Corporation
    Inventors: James P. Galbo, Ramanathan Ravichandran, Peter J. Schirmann, Andrew Mar
  • Non-migrating 1-hydrocarbyloxy hindered amine derivatives as polymer stabilizers
    Patent number: 5442071
    Abstract: 1-Hydrocarbyloxy substituted hindered amine compounds which also contain a reactive functional group such as hydroxy, amino, oxirane or carboxyl can be chemically attached to selected polymer substrates by condensation reactions to give polymers containing a chemically-bonded, non-migrating stabilizer having excellent stabilization efficacy for protecting said polymer substrate from the adverse effects of actinic light.
    Type: Grant
    Filed: August 2, 1994
    Date of Patent: August 15, 1995
    Assignee: Ciba-Geigy Corporation
    Inventors: James P. Galbo, Ramanathan Ravichandran, Peter J. Schirmann, Andrew Mar
  • Non-migrating 1-hydrocarbyloxy hindered amine derivatives as polymer stabilizers
    Patent number: 5359069
    Abstract: 1-Hydrocarbyloxy substituted hindered amine compounds which also contain a reactive functional group such as hydroxy, amino, oxirane or carboxyl can be chemically attached to selected polymer substrates by condensation reactions to give polymers containing a chemically-bonded, non-migrating stabilizer having excellent stabilization efficacy for protecting said polymer substrate from the adverse effects of actinic light.
    Type: Grant
    Filed: January 7, 1994
    Date of Patent: October 25, 1994
    Assignee: Ciba-Geigy Corporation
    Inventors: James P. Galbo, Ramanathan Ravichandran, Peter J. Schirmann, Andrew Mar
  • Process for stabilizing ethylenically unsaturated compounds and stabilized monomer compositions
    Patent number: 5290888
    Abstract: A process for stabilizing an ethylenically unsaturated monomer or oligomer from premature polymerization is disclosed whereby a stabilizing amount of an N-hydroxy substituted hindered amine is added to said polymerizable monomer or oligomer. The ethylenically unsaturated monomer or oligomer encompass vinyl monomers or oligomers bearing at least one polymerizable moiety. The N-hydroxy substituted hindered amine inhibits premature polymerization in the liquid and/or vapor phase.
    Type: Grant
    Filed: October 2, 1992
    Date of Patent: March 1, 1994
    Assignee: Ciba-Geigy Corporation
    Inventors: Leslie R. Gatechair, James L. Hyun, Peter J. Schirmann
  • Non-migrating 1-hydrocarbyloxy hindered amine derivatives as polymer stabilizers
    Patent number: 5286865
    Abstract: 1-Hydrocarbyloxy substituted hindered amine compounds which also contain a reactive functional group such as hydroxy, amino, oxirane or carboxyl can be chemically attached to selected polymer substrates by condensation reactions to give polymers containing a chemically-bonded, non-migrating stabilizer having excellent stabilization efficacy for protecting said polymer substrate from the adverse effects of actinic light.
    Type: Grant
    Filed: June 24, 1992
    Date of Patent: February 15, 1994
    Assignee: Ciba-Geigy Corporation
    Inventors: James P. Galbo, Ramanathan Ravichandran, Peter J. Schirmann, Andrew Mar
  • Peroxide free radical initiators containing hindered amine moieties with low basicity
    Patent number: 5204422
    Abstract: Compounds which contain peroxide linkages as well as a hindered amine light stabilizer moiety of low basicity function as free radical polymerization initiators and provide a polymer containing a hindered amine stabilizer chemically bonded to said polymer. The low basicity of the instant compounds prevents interaction with acid catalysts used in some polymerization systems.
    Type: Grant
    Filed: April 6, 1992
    Date of Patent: April 20, 1993
    Assignee: Ciba-Geigy Corporation
    Inventors: Raymond Seltzer, Roland A. E. Winter, Peter J. Schirmann
  • Non-migrating 1-hydrocarbyloxy hindered amine derivatives as polymer stabilizers
    Patent number: 5145893
    Abstract: 1-Hydrocarbyloxy substituted hindered amine compounds which also contain a reactive functional group such as hydroxy, amino, oxirane or carboxyl can be chemically attached to selected polymer substrates by condensation reactions to give polymers containing a chemically-bonded, non-migrating stabilizer having excellent stabilization efficacy for protecting said polymer substrate from the adverse effects of actinic light.
    Type: Grant
    Filed: February 14, 1990
    Date of Patent: September 8, 1992
    Assignee: Ciba-Geigy Corporation
    Inventors: James P. Galbo, Ramanathan Ravichandran, Peter J. Schirmann, Andrew Mar
  • Peroxide free radical initiators containing hindered amine moieties with low basicity
    Patent number: 5140081
    Abstract: Compounds which contain peroxide linkages as well as a hindered amine light stabilizer moiety of low basicity function as free radical polymerization initiators and provide a polymer containing a hindered amine stabilizer chemically bonded to said polymer. The low basicity of the instant compounds prevents interaction with acid catalysts used in some polymerization systems.
    Type: Grant
    Filed: July 17, 1991
    Date of Patent: August 18, 1992
    Assignee: Ciba-Geigy Corporation
    Inventors: Raymond Seltzer, Roland A. E. Winter, Peter J. Schirmann
  • Stabilization of acid catalyzed thermoset resins
    Patent number: 5112890
    Abstract: N-OR.sub.1 substituted hindered amine light stabilizers impart outstanding stabilization properties to acid catalyzed thermoset coating compositions providing enhanced resistance against the deleterious effects of light, moisture or oxygen without inhibition of cure.
    Type: Grant
    Filed: October 19, 1988
    Date of Patent: May 12, 1992
    Assignee: Ciba-Geigy Corporation
    Inventors: Rudolf A. Behrens, Roland A. E. Winter, Andrew Mar, Peter J. Schirmann, Raymond Seltzer, Roger F. Malherbe
  • Ethylenically unsaturated compounds containing 1-hydrocarbyloxy-2,2,6,6-tetramethylpiperidine moieties, and polymers, copolymers and stabilized compositions
    Patent number: 5077340
    Abstract: Ethylenically unsaturated compounds containing 1-hydrocarbyloxy-2,2,6,6-tetramethylpiperidine moieties represent reactable stabilizers which may be homopolymerized or copolymerized with other ethylenically saturated monomers to form non-migrating, light stabilizers which are very effective in stabilizing polyolefins and other polymer substrates against the deleterious effects of actinic light.
    Type: Grant
    Filed: April 10, 1991
    Date of Patent: December 31, 1991
    Assignee: CIBA-Geigy Corporation
    Inventors: Ramanathan Ravichandran, Peter J. Schirmann, Andrew Mar
  • Peroxide free radical initiators containing hindered amine moieties with low basicity
    Patent number: 5051511
    Abstract: Compounds which contain peroxide linkages as well as a hindered amine light stabilizer moiety of low basicity function as free radical polymerization initiators and provide a polymer containing a hindered amine stabilizer chemically bonded to said polymer. The low basicity of the instant compounds prevents interaction with acid catalysts used in some polymerization systems.
    Type: Grant
    Filed: February 14, 1990
    Date of Patent: September 24, 1991
    Assignee: Ciba-Geigy Corporation
    Inventors: Raymond Seltzer, Roland A. E. Winter, Peter J. Schirmann
  • Ethylenically unsaturated compounds containing 1-hydrocarbyloxy-2,2,6,6-tetramethylpiperidine moieties, and polymers, copolymers and stabilized compositions
    Patent number: 5047489
    Abstract: Ethylenically unsaturated compounds containing 1-hydrocarbyloxy-2,2,6,6-tetramethylpiperidine moieties represent reactable stabilizers which may be homopolymerized or copolymerized with other ethylenically saturated monomers to form non-migrating, light stabilizers which are very effective in stabilizing polyolefins and other polymer substrates against the deleterious effects of actinic light.
    Type: Grant
    Filed: October 30, 1990
    Date of Patent: September 10, 1991
    Assignee: Ciba-Geigy Corporation
    Inventors: Ramanathan Ravichandran, Peter J. Schirmann, Andrew Mar
  • Ethylenically unsaturated compounds containing 1-hydrocarbyloxy-2,2,6,6-tetramethylpiperidine moieties, and polymers, copolymers and stabilized compositions
    Patent number: 4983737
    Abstract: Ethylenically unsaturated compounds containing 1-hydroxycarbyloxy-2,2,6,6-tetramethylpiperidine moieties represent reactable stabilizers which may be homopolymerized or copolymerized with other ethylenically saturated monomers to form non-migrating, light stabilizers which are very effective in stabilizing polyolefins and other polymer substrates against the deleterious effects of actinic light.
    Type: Grant
    Filed: February 14, 1990
    Date of Patent: January 8, 1991
    Assignee: Ciba-Geigy Corporation
    Inventors: Ramanathan Ravichandran, Peter J. Schirmann, Andrew Mar
  • Activated ester monomers and polymers
    Patent number: 4778869
    Abstract: Ethylenically unsaturated monomers containing activated ester groups are used to make polymers and copolymers which are useful in coatings, adhesives and moldings.
    Type: Grant
    Filed: December 8, 1986
    Date of Patent: October 18, 1988
    Assignee: American Cyanamid Company
    Inventors: Peter J. Schirmann, Werner J. Blank, Girish G. Parekh
  • Preparation of alkyl acrylamidoglycolates and their alkyl ethers
    Patent number: 4760168
    Abstract: Reaction of an acrylamide with an alkyl glyoxylate or an alkyl glyoxylate hemiacetal provides an alkyl acrylamidoglycolate which can readily be alkylated to provide the alkyl ether thereof.
    Type: Grant
    Filed: February 20, 1987
    Date of Patent: July 26, 1988
    Assignee: American Cyanamid Company
    Inventor: Peter J. Schirmann
  • Ferrocenium/alpha-cleavage photoinitiator systems for free radical polymerizable compositions
    Patent number: 4707432
    Abstract: A free radical polymerizable composition comprising a free radical polymerizable material and a photoinitiator system therefor comprising appropriate amounts of an alpha-cleavage or homolytic bond cleavage, photoinitiator and a ferrocenium salt, said composition being suitable for use in the preparation of protective layers and photographic images.
    Type: Grant
    Filed: September 23, 1985
    Date of Patent: November 17, 1987
    Assignee: Ciba-Geigy Corporation
    Inventors: Leslie R. Gatechair, Gary M. Blumenstein, Peter J. Schirmann
  • Ethers of acrylamidoglycolic acid and esters
    Patent number: 4656308
    Abstract: Ethylenically unsaturated monomers containing activated ester groups are used to make polymers and copolymers which are useful in coatings, adhesives and moldings.
    Type: Grant
    Filed: September 5, 1985
    Date of Patent: April 7, 1987
    Assignee: American Cyanamid Company
    Inventors: Peter J. Schirmann, Werner J. Blank, Girish G. Parekh
  • Crosslinking coating compositions
    Patent number: 4454301
    Abstract: Coating compositions comprising a polymer containing repeating units derived from alkyl acrylamidoglycolate alkyl ethers or acrylamidoglycoamide alkyl ethers and reactive functions selected from hydroxy, carboxy and/or amido groups provide crosslinking coating compositions which are low in toxicity and low in evolution of toxic volatile reaction products.
    Type: Grant
    Filed: June 7, 1982
    Date of Patent: June 12, 1984
    Assignee: American Cyanamid Company
    Inventors: Susan M. Cady, Werner J. Blank, Peter J. Schirmann
  • Crosslinking composition containing activated carboxylic ester polymer and amine-terminated triazine resin
    Patent number: 4446280
    Abstract: The use of amine-terminated triazine resin as crosslinking agent in coating formulations containing activated carboxylic ester polymers provides improved coating properties.
    Type: Grant
    Filed: May 12, 1982
    Date of Patent: May 1, 1984
    Assignee: American Cyanamid Company
    Inventors: Susan M. Cady, Werner J. Blank, Peter J. Schirmann
  • Cross-linking agents for cationic polymers
    Patent number: 4404332
    Abstract: Amino-formaldehyde products with activated carboxylic ester groups cross-link compounds containing pendant primary or secondary amine groups.This is a continuation, of application Ser. No. 232,455, filed Feb. 9, 1981, which is a continuation of Ser. No. 128,613, filed 3/10/80, which is a division of Ser. No. 32,982, filed 4/25/79, which is a continuation-in-part of Ser. No. 926,762, filed 7/21/78, all now abandoned.
    Type: Grant
    Filed: October 26, 1982
    Date of Patent: September 13, 1983
    Assignee: American Cyanamid Company
    Inventors: Girish G. Parekh, Werner J. Blank, Peter J. Schirmann