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. 23, 1982
Filed:
Jun. 24, 1980
Applicant:
Inventor:
Leonard A Bunes, San Carlos, CA (US);
Assignee:
Dynapol, Palo Alto, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
A23L / ;
U.S. Cl.
CPC ...
426540 ; 426250 ; 426590 ; 424 14 ; 424 63 ; 424 70 ; 106289 ; 260144 ;
Abstract
Polymeric red colors having the structure ##STR1## wherein R.sub.1 and R.sub.2 are independently selected from among hydrogen, halos, lower alkyls, lower alkoxies, nitros, and sulfonates, R.sub.3 is selected from hydrogens, alkyls and alkylsulfonates, and R.sub.4 is an alkyl-containing polymer linking a plurality (n) of anthraquinones into a polymeric colorant are disclosed to be used as nonabsorbable colorants for edibles and cosmetics. They may also be used in such substrates as lakes.