Patents by Inventor Joerg Strack

Joerg Strack 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).

  • Developing method for printing plates for waterless offset printing with glycol diether containing developer
    Patent number: 4963472
    Abstract: A developing method for printing plates employing waterless offset processes is disclosed. The plates comprise a support coated with a photosensitive layer based on a diazonium salt polycondensation product and a super-imposed ink-repellent, crosslinked silicone elastomer layer, whereby said developer is characterized in that it contains a predominant proportion of compounds of the general formula R--(O--CH.sub.2 --CH.sub.2 --).sub.n --O--R, where R denotes C.sub.m H.sub.2m+1, n denotes an integer from 1 to 25 and m denotes an integer from 1 to 5. The present invention is particularly suitable for developing printing plates where the photosensitive layer comprises a diazonium salt polycondensation product comprising recurrent A--N.sub.
    Type: Grant
    Filed: May 11, 1988
    Date of Patent: October 16, 1990
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Hans-Joachim Schlosser, Joerg Strack