Patents by Inventor Richard H. Wunder

Richard H. Wunder 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).

  • Emulsion polymer recovery by coagulation
    Patent number: 4536568
    Abstract: A process is provided for the coagulation of rubber polymers from aqueous emulsions thereof wherein the coagulation is undertaken in the presence of an additive selected from a polysaccharide material and from a vegetable derived proteinaceous material. The polymers so coagulated are readily dried and may be used for the manufacture of products well known for the specific polymers.
    Type: Grant
    Filed: February 3, 1982
    Date of Patent: August 20, 1985
    Assignee: Polysar Limited
    Inventor: Richard H. Wunder
  • Emulsion polymer recovery
    Patent number: 4345067
    Abstract: A process is provided for the coagulation of rubber polymers from aqueous emulsions thereof wherein the coagulation is undertaken in the presence of an additive selected from a polysaccharide material and from a vegetable derived proteinaceous material. The polymers so coagulated are readily dried and may be used for the manufacture of products well known for the specific polymers.
    Type: Grant
    Filed: October 16, 1980
    Date of Patent: August 17, 1982
    Assignee: Polysar Limited
    Inventor: Richard H. Wunder