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:
Feb. 08, 1983
Filed:
May. 09, 1980
Applicant:
Inventors:
Francesco Gratani, Sesto San Giovanni, IT;
Giuseppe Nelli, Milan, IT;
Piero Di Battista, San Donato Milanese, IT;
Osvaldo Cicchetti, Milan, IT;
Assignee:
Montedison S.p.A., Milan, IT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ; C08K / ;
U.S. Cl.
CPC ...
524100 ; 524 91 ; 524128 ; 524132 ; 524222 ; 524303 ; 524305 ; 524323 ; 524328 ; 524336 ; 524347 ; 524400 ;
Abstract
New N,N'-di-(hydroxy-phenyl) derivatives of piperazine are disclosed. These new compounds are useful for stabilizing thermoplastic polymers, in particular polyolefins, against sunlight, heat and oxidation. A process for producing the new compounds is also disclosed, as well as the polymeric compositions stabilized with said new compounds.
Quick Actions:
Gratani, Francesco. (1983). N,n-di-(hydroxy-phenyl) derivatives of piperazine and use thereof as (U.S. Patent No. 4373042). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4373042
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile