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:
May. 10, 2016
Filed:
Sep. 06, 2012
Robert D. Herold, Monroeville, PA (US);
Nina V. Bojkova, Monroeville, PA (US);
Marvin J. Graham, Monroeville, PA (US);
Charles R. Hickenboth, Cranberry Township, PA (US);
Gregory J. Mccollum, Gibsonia, PA (US);
William H. Retsch, Jr., Allison Park, PA (US);
Hongying Zhou, Allison Park, PA (US);
Robert D. Herold, Monroeville, PA (US);
Nina V. Bojkova, Monroeville, PA (US);
Marvin J. Graham, Monroeville, PA (US);
Charles R. Hickenboth, Cranberry Township, PA (US);
Gregory J. McCollum, Gibsonia, PA (US);
William H. Retsch, Jr., Allison Park, PA (US);
Hongying Zhou, Allison Park, PA (US);
PPG Industries Ohio, Inc., Cleveland, OH (US);
Abstract
Provided is a polymerizable composition including (meth)acrylate monomers having at least two sulfide (—S—) linkages in the monomer. The polymerizable compositions include a first (meth)acrylate monomer represented by the following Formula (I), where Lis selected from a multivalent optionally substituted hydrocarbyl group optionally interrupted with at least one of —C(O)—, —S—, —O— and combinations thereof, and a divalent linking group represented by the following Formula (A). In Formula (A), Y is O or S. Also in Formula (I), Lis independently for each n a divalent optionally substituted hydrocarbyl group optionally interrupted with at least one of —O— and —S—, Ris independently selected for each n from hydrogen and methyl, and n is from 2 to 6. The polymerizable compositions also may include a polymerization moderator. Also provided are polymerizates including photochromic articles and optical elements prepared from such polymerizable compositions.