Patents by Inventor Richard Anton Schwarz

Richard Anton Schwarz 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).

  • Processes for forming styrenic copolymers
    Patent number: 6497269
    Abstract: Copolymers are formed by suspension polymerization of monomers, including one or more styrenic monomers, and one or more acrylic monomers. The monomers can be polymerized in the presence of polymeric seeds. The polymerization can be carried out in the presence of one or more blowing agents, producing polymers that can be expanded. The methods are useful, for example, in forming expandable polymeric particles. The expandable polymer particles are useful in processes such as forming patterns for lost foam molding techniques.
    Type: Grant
    Filed: January 22, 2002
    Date of Patent: December 24, 2002
    Assignee: StyroChem Delaware, Inc.
    Inventors: Fred Sonnenberg, Richard Anton Schwarz
  • Processes for forming styrenic copolymers
    Publication number: 20020088597
    Abstract: Copolymers are formed by suspension polymerization of monomers, including one or more styrenic monomers, and one or more acrylic monomers. The monomers can be polymerized in the presence of polymeric seeds. The polymerization can be carried out in the presence of one or more blowing agents, producing polymers that can be expanded. The methods are useful, for example, in forming expandable polymeric particles. The expandable polymer particles are useful in processes such as forming patterns for lost foam molding techniques.
    Type: Application
    Filed: January 22, 2002
    Publication date: July 11, 2002
    Applicant: StyroChem Delaware, Inc.
    Inventors: Fred Sonnenberg, Richard Anton Schwarz
  • Processes for forming styrenic copolymers
    Patent number: 6360807
    Abstract: Copolymers are formed by suspension polymerization of monomers, including one or more styrenic monomers, and one or more acrylic monomers. The monomers can be polymerized in the presence of polymeric seeds. The polymerization can be carried out in the presence of one or more blowing agents, producing polymers that can be expanded. The methods are useful, for example, in forming expandable polymeric particles. The expandable polymer particles are useful in processes such as forming patterns for lost foam molding techniques.
    Type: Grant
    Filed: April 6, 2001
    Date of Patent: March 26, 2002
    Assignee: StyroChem Delaware, Inc.
    Inventors: Fred Sonnenberg, Richard Anton Schwarz
  • Processes for forming styrenic polymers
    Patent number: 6355697
    Abstract: Polymers are formed by suspension polymerization of monomers, including one or more styrenic monomers, in the presence of polymeric, emulsion based seeds. The polymerization can be carried out in the presence of one or more blowing agents, producing polymers that can be expanded. The methods are useful, for example, in forming polystyrene which can then be expanded to form expanded polystyrene. The methods utilize suspending agents, and surfactant can be used in an amount insufficient to form an emulsion.
    Type: Grant
    Filed: April 6, 2001
    Date of Patent: March 12, 2002
    Assignee: StyroChem Delaware, Inc.
    Inventor: Richard Anton Schwarz
  • Processes for forming styrenic polymers
    Publication number: 20010056130
    Abstract: Polymers are formed by suspension polymerization of monomers, including one or more styrenic monomers, in the presence of polymeric, emulsion based seeds. The polymerization can be carried out in the presence of one or more blowing agents, producing polymers that can be expanded. The methods are useful, for example, in forming polystyrene which can then be expanded to form expanded polystyrene. The methods utilize suspending agents, and surfactant can be used in an amount insufficient to form an emulsion.
    Type: Application
    Filed: April 6, 2001
    Publication date: December 27, 2001
    Inventor: Richard Anton Schwarz
  • Processes for forming styrenic copolymers
    Publication number: 20010014701
    Abstract: Copolymers are formed by suspension polymerization of monomers, including one or more styrenic monomers, and one or more acrylic monomers. The monomers can be polymerized in the presence of polymeric seeds. The polymerization can be carried out in the presence of one or more blowing agents, producing polymers that can be expanded. The methods are useful, for example, in forming expandable polymeric particles. The expandable polymer particles are useful in processes such as forming patterns for lost foam molding techniques.
    Type: Application
    Filed: April 6, 2001
    Publication date: August 16, 2001
    Inventors: Fred Sonnenberg, Richard Anton Schwarz