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:
Jun. 07, 1977
Filed:
May. 29, 1975
Applicant:
Inventors:
James A Dale, Menlo Park, CA (US);
William J Leonard, San Francisco, CA (US);
Assignee:
Dynapol Corporation, Palo Alto, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A23D / ; C08F / ;
U.S. Cl.
CPC ...
260 / ; 2606 / ; 2606 / ; 426546 ;
Abstract
Polymeric phenols of the formula ##STR1## WHEREIN N IS AN INTEGER FROM 3 TO 2,000, R.sub.1 is a lower alkyl and R.sub.2 is hydrogen or a lower alkyl, are disclosed. Their preparation and preferred use as antioxidants, especially nonabsorbable food antioxidants, are also disclosed.