Patents by Inventor John C. Schmidhauser

John C. Schmidhauser 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: 6232405
    Abstract: Water soluble SMA resin amic acids are provided, as are methods for using the same to prepare water based pigment dispersions and inks.
    Type: Grant
    Filed: February 2, 2000
    Date of Patent: May 15, 2001
    Assignee: Atofina Chemicals, Inc.
    Inventors: John C. Schmidhauser, Lisa M. Hahn
  • Patent number: 5480959
    Abstract: Bisphenols are prepared from cyclic monoterpene precursors and high glass transition temperature polymers are prepared from bisphenols. More particularly, substantially pure 4-[1-[3-(4-hydroxyphenyl)-4 -methylcyclohexyl]-1-methylethyl] phenol and 4,4'-[1-methyl -4-methylethyl)-1,3-cyclohexandiyl] bisphenol are isolated and high glass transition temperature bisphenol polycarbonates are prepared.
    Type: Grant
    Filed: April 11, 1994
    Date of Patent: January 2, 1996
    Assignee: General Electric Company
    Inventor: John C. Schmidhauser
  • Patent number: 5412048
    Abstract: Spherical monodispersed polymeric particles are prepared from vinyl monomers and crosslinking polymerizable polyvinyl monomers. More particularly, a novel process for producing spherical monodispersed gel particles that are about 1-6 .mu.m in size and contain at least about 0.5 to about 3 weight percent (based on polymerizable vinyl monomer/vinyl polymer) of a polymerizable polyvinyl monomer is disclosed. The process comprises the steps of combining an isoalkanol solvent, a polymerizable vinyl monomer and a crosslinking polymerizable polyvinyl monomer under timed and monitored conditions.
    Type: Grant
    Filed: July 26, 1993
    Date of Patent: May 2, 1995
    Assignee: General Electric Company
    Inventors: Kathryn L. Longley, John C. Schmidhauser
  • Patent number: 5344999
    Abstract: 1,3-Bis(4-hydroxyphenyl)-1,3-dialkylcyclohexanes, as illustrated by 1,3-bis(4-hydroxyphenyl)-1, 3-dimethylcyclohexane, may be prepared by the reaction of phenol with a 1,5-dialkyl-1,4-cyclohexadiene under acidic conditions. Polycarbonates prepared therefrom have high glass transition temperatures and are expected to be ductile.
    Type: Grant
    Filed: October 1, 1993
    Date of Patent: September 6, 1994
    Assignee: General Electric Company
    Inventor: John C. Schmidhauser
  • Patent number: 5319149
    Abstract: Bis[4-(4-hydroxyphenyl)-phenyl]alkanes, as illustrated by 2,2-bis[4-(4-hydroxyphenyl)-phenyl]propane, may be prepared by the reaction of a bisphenol A ester or a similar compound with a p-trialkyltin-substituted anisole, followed by demethylation with a Lewis acid such as boron tribromide. Polycarbonates prepared therefrom are ductile and have high glass transition temperatures.
    Type: Grant
    Filed: October 1, 1993
    Date of Patent: June 7, 1994
    Assignee: General Electric Company
    Inventors: John T. Bendler, John C. Schmidhauser, Kathryn L. Longley
  • Patent number: 5312918
    Abstract: Halo-displacement reaction products of aliphatic hydroxy compounds and chloro- or bromo-substituted aromatic nitrogen-heterocyclic compounds are conducted under alkaline conditions in the presence of a phase transfer catalyst, in the substantial absence of water inorganic salts other than those formed in the reaction. The method is particularly useful for the preparation of substituted chlorotriazines. In a preferred embodiment, the reagents constitute at least about 25% by weight of the organic phase of the reaction mixture.
    Type: Grant
    Filed: May 24, 1993
    Date of Patent: May 17, 1994
    Assignee: General Electric Company
    Inventors: John C. Schmidhauser, Kathryn L. Longley, William L. Gately
  • Patent number: 5306832
    Abstract: A heterocyclohexylidenebisphenol having the formula ##STR1## wherein X is S, SO, SO.sub.2 or N--OCOR and R is a C.sub.1-4 primary or secondary alkyl or phenyl optionally substituted by an ethyl or 1-2 methyl groups may be prepared by the reaction of bisphenol A or a similar compound with the corresponding thiopyranone or piperidone. The thio compound may be oxidized to the corresponding sulfone. Polycarbonates prepared from said heterocyclic bis(4-hydroxyphenyl)cycloalkanes have high glass transition temperatures and are expected to be ductile.
    Type: Grant
    Filed: October 7, 1993
    Date of Patent: April 26, 1994
    Assignee: General Electric Company
    Inventor: John C. Schmidhauser
  • Patent number: 5300622
    Abstract: Heterocyclic bis(4-hydroxyphenyl)cycloalkanes, as illustrated by 4,4-bis(4-hydroxyphenyl)thiopyran and the corresponding acetylated piperidine, may be prepared by the reaction of bisphenol A or a similar compound with the corresponding thiopyranone or piperidone. The thio compound may be oxidized to the corresponding sulfone. Polycarbonates prepared from said heterocyclic bis(4-hydroxyphenyl)cycloalkanes have high glass transition temperatures and are expected to be ductile.
    Type: Grant
    Filed: December 11, 1992
    Date of Patent: April 5, 1994
    Assignee: General Electric Company
    Inventor: John C. Schmidhauser
  • Patent number: 5281689
    Abstract: Bis[4-(4-hydroxyphenyl)-phenyl]alkanes, as illustrated by 2,2-bis[4-(4-hydroxyphenyl)-phenyl]propane, may be prepared by the reaction of a bisphenol A ester or a similar compound with a p-trialkyltin-substituted anisole, followed by demethylation with a Lewis acid such as boron tribromide. Polycarbonates prepared therefrom are ductile and have high glass transition temperatures.
    Type: Grant
    Filed: December 11, 1992
    Date of Patent: January 25, 1994
    Assignee: General Electric Company
    Inventors: John T. Bendler, John C. Schmidhauser, Kathryn L. Longley
  • Patent number: 5281688
    Abstract: 1,3-Bis(4-hydroxyphenyl)-1,3-dialkylcyclohexanes, as illustrated by 1,3-bis(4-hydroxyphenyl)-1,3-dimethylcyclohexane, may be prepared by the reaction of phenol with a 1,5-dialkyl-1,4-cyclohexadiene under acidic conditions. Polycarbonates prepared therefrom have high glass transition temperatures and are expected to be ductile.
    Type: Grant
    Filed: December 11, 1992
    Date of Patent: January 25, 1994
    Assignee: General Electric Company
    Inventor: John C. Schmidhauser
  • Patent number: 5110897
    Abstract: High molecular weight, thermoplastic aromatic polycarbonate compositions exhibiting improved oxygen barrier properties are provided which comprise structural units derived from a diester bisphenol or a cyano-substituted bisphenol, or an aromatic dihydric phenol in admixture with either of the foregoing bisphenol compounds. Novel cyano-substituted bisphenol monomers are also provided.
    Type: Grant
    Filed: May 9, 1990
    Date of Patent: May 5, 1992
    Assignee: General Electric Company
    Inventors: John C. Schmidhauser, Kathryn L. Longley
  • Patent number: 5051490
    Abstract: Aromatic thermoplastic polyarylates containing structural units derived from a bisphenol of cyclohexanone, preferably 1,1-bis(4-hydroxy-3-methylphenyl)cyclohexane, and an aromatic dicarboxylic acid or mixture of such acids, are provided which exhibit improved oxygen barrier properties.
    Type: Grant
    Filed: September 25, 1990
    Date of Patent: September 24, 1991
    Assignee: General Electric Company
    Inventors: Richard P. Joyce, John C. Schmidhauser, Kathryn L. Longley
  • Patent number: RE35059
    Abstract: A heterocyclohexylidenebisphenol having the formula ##STR1## wherein X is S, SO.[.,.]. .Iadd.or .Iaddend.SO.sub.2 .[.or N--COR and R is a C.sub.1-4 primary or secondary alkyl or phenyl optionally substituted by an ethyl or 1-2 methyl groups.]. may be prepared by the reaction of phenol or a similar compound with the corresponding thiopyranone .[.or piperidone.].. The thio compound may be oxidized to the corresponding .Iadd.sulfoxide or .Iaddend.sulfone. Polycarbonates prepared from said heterocyclic bis(4-hydroxyphenyl) cycloalkanes having high glass transition temperatures and are expected to be ductile.
    Type: Grant
    Filed: November 17, 1994
    Date of Patent: October 10, 1995
    Assignee: General Electric Company
    Inventor: John C. Schmidhauser