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. 16, 1998
Filed:
Apr. 09, 1996
Jean-Claude Le Thiesse, Saint-Etienne, FR;
Eraclis Statiotis, Villette D'Anthon, FR;
Rhone-Poulenc Chimie, Courbevoie, FR;
Abstract
The present invention relates to a novel presentation of a product exhibiting the phenomenon of supercooling. More precisely, the subject of the invention is cristallized pearls of a product exhibiting strong supercooling. The invention also relates to the preparation of the said pearls. The characteristic feature of the process of the invention is to melt, if necessary, the product to be shaped; to break up the molten mass into droplets; to cool the droplets to a temperature below the glass transition temperature of the product, so that these droplets harden by vitrification; to maintain the pearls thus vitrified at a temperature below the glass transition temperature and to place them in contact with crystallization seeds; to crystallize the pearls by raising the temperature above the glass transition temperature and then to recover the crystallized pearls.