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:
Jul. 14, 2026
Filed:
Mar. 08, 2022
Ppg Industries Ohio, Inc., Cleveland, OH (US);
Marco Antonio Herrera Garcia, Pittsburgh, PA (US);
Jeremy J. Hay, Somerset, PA (US);
Kevin H. Klingensmith, Gibsonia, PA (US);
Robert D. Herold, Monroeville, PA (US);
PPG Industries Ohio, Inc., Cleveland, OH (US);
Abstract
Provided is a polymerizable composition including (a) a polymerizable component comprising a diol bis(allyl carbonate) and/or a pre-polymer thereof; and (b) a polymerization initiator component including: (i) a di(C-Calkyl) peroxydicarbonate, and (ii) an organic peroxide having one peroxy, one peroxycarbonate, or one peroxybenzoate group and a 1,1-dimethylalkyl group bonded to a peroxy oxygen, where (ii) comprises a molecular weight ranging from 200 to 250 g/mole, the polymerization initiator (b) is free of diisopropyl peroxydicarbonate, (i) comprises an amount ranging from 4.87% to 7.90% by weight relative to the total solids of the polymerizable composition and (ii) comprises an amount within the range defined by the following formula: (4.406X−0.592X+0.021)≤Y≤(0.726X−0.121X+0.009) where X corresponds to the weight fraction of (i) and Y corresponds to the weight fraction of (ii). Also provided is a method of making an optical article from the polymerizable composition.