Patents by Inventor Karl F. Schimmel

Karl F. Schimmel 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: 4225480
    Abstract: Amine group-containing addition interpolymers having improved stability under conditions of storage and use are prepared by interpolymerizing at least one polymerizable ethylenically unsaturated carboxylic acid monomer and at least one polymerizable ethylenically unsaturated aminolysis-resistant organic monomer to form an addition interpolymer containing carboxyl groups pendent to the polymer chain and aminolysis-resistant organic groups pendent to the polymer chain, following which a portion of the pendent carboxyl groups of the addition interpolymer are reacted with an alkylenimine to form pendent amine groups and a portion of the pendent carboxyl groups of the addition interpolymer are neutralized with a basic compound to form pendent anionic salt groups. The addition interpolymer is preferably reducible with organic solvents, water or a mixture thereof, and can be utilized as pigment grinding vehicles or they can be formulated with conventional additives to form useful coating compositions.
    Type: Grant
    Filed: July 31, 1978
    Date of Patent: September 30, 1980
    Assignee: PPG Industries, Inc.
    Inventors: Karl F. Schimmel, Roger M. Christenson, Jerome A. Seiner, James A. Claar
  • Patent number: 4221885
    Abstract: Amine group-containing addition interpolymers having improved stability under conditions of storage and use are prepared by interpolymerizing at least one polymerizable ethylenically unsaturated carboxylic acid monomer and at least one polymerizable ethylenically unsaturated aminolysis-resistant organic monomer to form an addition interpolymer containing carboxyl groups pendent to the polymer chain and aminolysis-resistant organic groups pendent to the polymer chain, following which a portion of the pendent carboxyl groups of the addition interpolymer are reacted with an alkylenimine to form pendent amine groups and a portion of the pendent carboxyl groups of the addition interpolymer are neutralized with a basic compound to form pendent anionic salt groups.
    Type: Grant
    Filed: September 6, 1978
    Date of Patent: September 9, 1980
    Assignee: PPG Industries, Inc.
    Inventors: Karl F. Schimmel, Roger M. Christenson, Jerome A. Seiner, James A. Claar
  • Patent number: 4186124
    Abstract: A polymeric product suitable for use as a pigment grinding vehicle is disclosed. The polymeric product is the reaction product of an organic polyepoxide and an organic amine containing an alkylarylpolyether moiety.
    Type: Grant
    Filed: January 13, 1978
    Date of Patent: January 29, 1980
    Assignee: PPG Industries, Inc.
    Inventors: Karl F. Schimmel, Lance C. Sturni, Martin J. Robles
  • Patent number: 4129490
    Abstract: Polymeric products comprising the acidified reaction product of an organic polyepoxide and a polyamine containing at least two tertiary amine groups are disclosed. The polyamine and the organic polyepoxide are reacted with one another under conditions to form an internally ionized, quaternary ammonium salt group-containing polymer which has a high molecular weight, but relatively low equivalent weight. The polyamine is formed by reacting an organic polyisocyanate or organic polycarboxylic acid with an active hydrogen-containing tertiary amine. The reaction product is acidified to form the quaternary ammonium salt groups. Preparing the polyamine in this manner gives one wide latitude in determining the final structure of the polyamine. In effect, one can "tailor make" the polyamine by appropriate selection of reactants and exert a great measure of control over the properties of the final polymeric product. The preferred polymeric products are non-gelled, water-dispersible and electrodepositable on the cathode.
    Type: Grant
    Filed: December 7, 1977
    Date of Patent: December 12, 1978
    Assignee: PPG Industries, Inc.
    Inventor: Karl F. Schimmel
  • Patent number: 4126596
    Abstract: Two-package polymeric compositions which form cured products having excellent stain and solvent resistance and having improved potlife comprise a polyepoxide and an addition interpolymer containing pendent salt groups formed by reacting carboxyl groups with a hindered amine and pendent amine groups formed by reacting carboxyl groups with an alkylenimine. The addition interpolymer when mixed with the polyepoxide reacts to form a cured, hard, stain and solvent resistant material. The stability of the mixed compositions, i.e., its potlife, is lengthened by utilizing a sterically-hindered tertiary amine to form the salt groups of the interpolymer.Stability of the addition interpolymer prior to mixing is improved by utilizing therein monomers which provide aminolysis-resistant groups in the interpolymer.
    Type: Grant
    Filed: February 23, 1977
    Date of Patent: November 21, 1978
    Assignee: PPG Industries, Inc.
    Inventors: Karl F. Schimmel, James A. Claar, Jerome A. Seiner, Marco Wismer
  • Patent number: 4104230
    Abstract: Two-package polymeric compositions which form cured products having excellent stain and solvent resistance and which can be water-reducible if desired comprise a polyepoxide and an addition interpolymer containing pendent salt groups, formed by reacting carboxyl groups with a base, and pendent amine groups formed by reacting carboxyl groups with an alkylenimine. The addition interpolymer preferably has a pH of greater than 7.0 in the presence of water, and when mixed with the polyepoxide reacts to form a cured, hard, solvent and stain-resistant material.
    Type: Grant
    Filed: February 23, 1977
    Date of Patent: August 1, 1978
    Assignee: PPG Industries, Inc.
    Inventors: Wen-Hsuan Chang, Karl F. Schimmel, James A. Claar
  • Patent number: 4097651
    Abstract: Novel polymers formed from the reaction of tetracarboxylic dianhydrides and hydrazines or hydrazides which may be cross-linkable by further reaction with a hydrazine or a hydrazide are disclosed.
    Type: Grant
    Filed: November 16, 1976
    Date of Patent: June 27, 1978
    Assignee: PPG Industries, Inc.
    Inventors: Karl F. Schimmel, Marco Wismer
  • Patent number: 4089846
    Abstract: Novel polymers formed from the reaction of tricarboxylic anhydrides and hydrazines or hydrazides which may be cross-linkable by further reaction with a hydrazine or hydrazide are disclosed.
    Type: Grant
    Filed: November 4, 1975
    Date of Patent: May 16, 1978
    Assignee: PPG Industries, Inc.
    Inventors: Karl F. Schimmel, Marco Wismer
  • Patent number: 4081343
    Abstract: A pigment paste suitable for use in cationic electrodeposition is disclosed. The paste contains pigment dispersed in a resinous vehicle which is the reaction product of an epoxy-contaning organic material and an organic tertiary amine acid salt containing blocked isocyanate groups capable of unblocking at elevated temperature.
    Type: Grant
    Filed: November 3, 1976
    Date of Patent: March 28, 1978
    Assignee: PPG Industries, Inc.
    Inventors: Karl F. Schimmel, Percy E. Pierce, James E. Jones
  • Patent number: 4075240
    Abstract: Novel polymers formed from the reaction of tetracarboxylic dianhydrides and hydrazines or hydrazides which may be cross-linkable by further reaction with a hydrazine or a hydrazide are disclosed.
    Type: Grant
    Filed: November 4, 1975
    Date of Patent: February 21, 1978
    Assignee: PPG Industries, Inc
    Inventors: Karl F. Schimmel, Marco Wismer
  • Patent number: 4069210
    Abstract: Polymeric products comprising the acidified reaction product of an organic polyepoxide and a polyamine containing at least two tertiary amine groups are disclosed. The polyamine and the organic polyepoxide are reacted with one another under conditions to form an internally ionized, quaternary ammonium salt group-containing polymer which has a high molecular weight, but relatively low equivalent weight. The polyamine is formed by reacting an organic polyisocyanate or organic polycarboxylic acid with an active hydrogen-containing tertiary amine. The reaction product is acidified to form the quaternary ammonium salt groups. Preparing the polyamine in this manner gives one wide latitude in determining the final structure of the polyamine. In effect, one can "tailor make" the polyamine by appropriate selection of reactants and exert a great measure of control over the properties of the final polymeric product. The preferred polymeric products are non-gelled, water-dispersible and electrodepositable on the cathode.
    Type: Grant
    Filed: September 30, 1976
    Date of Patent: January 17, 1978
    Assignee: PPG Industries, Inc.
    Inventor: Karl F. Schimmel
  • Patent number: 4049637
    Abstract: Novel polymers formed from the reaction of tricarboxylic anhydrides and hydrazines or hydrazides which may be cross-linkable by further reaction with a hydrazine or hydrazide are disclosed.
    Type: Grant
    Filed: November 16, 1976
    Date of Patent: September 20, 1977
    Assignee: PPG Industries, Inc.
    Inventors: Karl F. Schimmel, Marco Wismer
  • Patent number: 4046949
    Abstract: Novel polymers formed from the reaction of tricarboxylic anhydrides and hydrazines or hydrazides which may be cross-linkable by further reaction with a hydrazine or hydrazide are disclosed.
    Type: Grant
    Filed: November 16, 1976
    Date of Patent: September 6, 1977
    Assignee: PPG Industries, Inc.
    Inventors: Karl F. Schimmel, Marco Wismer
  • Patent number: 4020050
    Abstract: Novel polymers formed from the reaction of tetracarboxylic dianhydrides and hydrazines or hydrazides which may be cross-linkable by further reaction with a hydrazine or a hydrazide are disclosed.
    Type: Grant
    Filed: October 2, 1974
    Date of Patent: April 26, 1977
    Assignee: PPG Industries, Inc.
    Inventors: Karl F. Schimmel, Marco Wismer
  • Patent number: 4007154
    Abstract: A pigment paste suitable for use in cationic electrodeposition is disclosed. The paste contains pigment dispersed in a resinous vehicle which is the reaction product of an epoxy-containing organic material and an organic tertiary amine acid salt containing blocked isocyanate groups capable of unblocking at elevated temperature.
    Type: Grant
    Filed: August 1, 1975
    Date of Patent: February 8, 1977
    Assignee: PPG Industries, Inc.
    Inventors: Karl F. Schimmel, Percy E. Pierce, James E. Jones
  • Patent number: 3969566
    Abstract: Novel polymers formed from the reaction of tricarboxylic anhydrides and hydrazines or hydrazides which may be cross-linkable by further reaction with a hydrazine or hydrazide are disclosed.
    Type: Grant
    Filed: October 2, 1974
    Date of Patent: July 13, 1976
    Assignee: PPG Industries, Inc.
    Inventors: Karl F. Schimmel, Marco Wismer
  • Patent number: 3943080
    Abstract: Solid organic inert flatting agents are prepared by reacting urea or phenol and formaldehyde in a basic aqueous medium to provide a prepolymer solution, then blending the prepolymer in the presence of a protective colloid-forming material, subsequently acidifying the basic prepolymer solution so that particles are formed and precipitated in the presence of a colloid-forming material, as spheroidal beads, and finally collecting and, if desired, drying the urea or phenol formaldehyde particulate beads. These beads have a high flatting efficiency and may be incorporated in resinous vehicles to provide compositions that produce low glass coatings of desirable properties.
    Type: Grant
    Filed: August 1, 1974
    Date of Patent: March 9, 1976
    Assignee: PPG Industries, Inc.
    Inventors: Marco Wismer, Karl F. Schimmel, Rodger G. Temple
  • Patent number: RE30264
    Abstract: Polymeric products comprising the acidified reaction product of an organic polyepoxide and a polyamine containing at least two tertiary amine groups are disclosed. The polyamine and the organic polyepoxide are reacted with one another under conditions to form an internally ionized, quaternary ammonium salt group-containing polymer which has a high molecular weight, but relatively low equivalent weight. The polyamine is formed by reacting an organic polyisocyanate .[.or organic polycarboxylic acid.]. with an active hydrogen-containing tertiary amine. The reaction product is acidified to form the quaternary ammonium salt groups. Preparing the polyamine in this manner gives one wide latitude in determining the final structure of the polyamine. In effect, one can "tailor make" the polyamine by appropriate selection of reactants and exert a great measure of control over the properties of the final polymeric product.
    Type: Grant
    Filed: January 22, 1979
    Date of Patent: April 29, 1980
    Assignee: PPG Industries, Inc.
    Inventor: Karl F. Schimmel