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:
Mar. 14, 1995
Filed:
Oct. 28, 1993
Applicant:
Inventors:
Fyodor Shutov, Downers Grove, IL (US);
George Ivanov, Chicago, IL (US);
Hamid Arastoopour, Darien, IL (US);
Assignee:
Illinois Institute of Technology, Chicago, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B02C / ;
U.S. Cl.
CPC ...
241 16 ; 241 17 ; 241 23 ; 241 65 ; 2412601 ; 241261 ; 366 85 ; 366 88 ; 366 89 ;
Abstract
A process and apparatus for pulverization of natural and synthetic polymeric material by heating to a pre-melt or softening temperature below its melting point, cooling and applying normal and shear stresses sufficient to form fine powder, and fluidizing the powder in a gas stream preventing its agglomeration. The same process and apparatus is suitable for enhancement of reactivity of polymeric and solid monomeric material to form homopolymers, copolymers, and new polymeric materials.