Patents by Inventor Friedhold Schon

Friedhold Schon 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).

  • Method of making functionalized styrene butadiene type latex binders
    Patent number: 5629047
    Abstract: A latex useful as a binder for paper, nonwovens, and textiles is prepared by copolymerizing in aqueous emulsion using a redox initiator at 5.degree. C. a mixture of 35 to 60% weight of a conjugated diene monomer and from about 30 to 65% by weight of a vinyl aryl monomer. Additional improvements can be obtained by incorporating in the mixture a small percentage by weight of copolymerizable monomers such as acrylic acid, methacrylic acid, itaconic acid and/or a functional type monomer having an activatable methyl, ethyl, propyl or butyl ester group and a vinyl group.
    Type: Grant
    Filed: August 6, 1990
    Date of Patent: May 13, 1997
    Assignee: GenCorp Inc.
    Inventors: Satish C. Sharma, Amiya K. Chatterjee, Ronald D. Mohan, Friedhold Schon