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:
Sep. 02, 2014
Filed:
Jul. 16, 2010
Fadi O. Adileh, Tampa, FL (US);
Aref Ben Ahmed Jallouli, Largo, FL (US);
Peiqi Jiang, Tarpon Spring, FL (US);
Joey Oliveros Obordo, Seminole, FL (US);
Yassin Yusef Turshani, Largo, FL (US);
Steven Weber, Clearwater, FL (US);
Fadi O. Adileh, Tampa, FL (US);
Aref Ben Ahmed Jallouli, Largo, FL (US);
Peiqi Jiang, Tarpon Spring, FL (US);
Joey Oliveros Obordo, Seminole, FL (US);
Yassin Yusef Turshani, Largo, FL (US);
Steven Weber, Clearwater, FL (US);
Essilor International (Compagnie Generale d'Optique), Charenton le Pont, FR;
Abstract
A transparent, non elastomeric, high refractive index, impact resistant poly(thio)urethane/urea material comprising the reaction product of: a) at least one (α, ω)-diiso(thio)cyanate cycloaliphatic or aromatic polysulfide prepolymer, and b) at least one aromatic primary diamine, in an equivalent molar ratio amine function/iso(thio)cyanate function ranging from 0.5 to 2, wherein, said prepolymer and diamine are free from disulfide (—S—S—) linkage and wherein the (α, ω)-diiso(thio)cyanate polysulfide prepolymer is the reaction product of at least one cycloaliphatic or aromatic diiso(thio)cyanate and at least one (α, ω)-diol prepolymer.