The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 09, 1979
Filed:
Aug. 29, 1977
Peter Hegenberg, deceased, LATE OF Marl, DE;
Johanna M Hegenberg, heir, Munich, DE;
Dagmar Hegenberg, heir, Munich, DE;
Joachim Hegenberg, heir, Neukaferloh bei Munich, DE;
Felicitas Zottl, heir, Munich, DE;
Sigrid Rossnagel, heir, Wendelstein bei Nurnberg, DE;
Heidelore Freyberger, heir, Munich, DE;
Hans-Ernst Sprenger, Wanne-Eickel, DE;
Helmut Birkner, Marl, DE;
Armin Gude, Marl, DE;
Gerhard Menzel, Marl, DE;
Konrad Rombusch, Marl, DE;
Chemische Werke Huls Aktiengesellschaft, Marl, DE;
Abstract
Shaped or unshaped synthetic resins having about 0.01-5% by weight of stabilizers where the stabilizers are bisamides of quadratic acids having the general formulas I and/or II as follows: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, and R.sub.4, are identical or different, and represent