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. 03, 2008
Filed:
Mar. 12, 2004
Applicants:
Donald W. Hayward, Waterville, OH (US);
Daniel L. Witham, Holland, OH (US);
Inventors:
Donald W. Hayward, Waterville, OH (US);
Daniel L. Witham, Holland, OH (US);
Assignee:
Phoenix Technologies International, LLC, Bowling Green, OH (US);
Primary Examiner:
Int. Cl.
CPC ...
B02C 19/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A process for preparing extremely small RPET particles comprises proving a quantity of RPET flakes, increasing the crystallinity of the RPET flakes, separating a portion of the RPET flakes having the lowest particle density from the remainder of the RPET flakes, and comminuting the remaining RPET flakes, to prepare RPET particles having an average mean particle size less than 500 microns.