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. 03, 1981
Filed:
Jun. 22, 1979
Applicant:
Inventors:
Marvin Rosen, Williamsport, PA (US);
Lloyd C Franklin, Montgomery, PA (US);
Assignee:
Glyco Chemicals, Inc., Greenwich, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09F / ; C11C / ;
U.S. Cl.
CPC ...
2604045 ; 260428 ;
Abstract
A process for preparing alpha and beta crystalline forms of N,N'-ethylene bis-stearamide (EBS). Heating of EBS at temperatures of 120.degree.-160.degree. C. to melt the EBS results in formation of 95+% alpha which when cooled to 40.degree. C. or less remains in the alpha state, but upon reheating to about 80.degree. C. results in 95+% conversion to the beta crystalline form. Heating of the alpha crystalline form at temperatures ranging from about 45.degree.-90.degree. C. for selected periods of time results in mixtures of alpha and beta.