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:
Jan. 29, 2013
Filed:
Oct. 27, 2006
Applicants:
Masanori Watanabe, Ube, JP;
Takafumi Hirakawa, Ube, JP;
Atsushi Morikami, Ube, JP;
Inventors:
Assignee:
Ube Industries, Ltd., Ube-Shi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G 75/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
Disclosed is a polymerizable composition comprising Component (a): a polythiocarbonate polythiol, Component (b): an episulfide compound, and optionally Component (c): an organic compound having a functional group that is reactive to the episulfide compound. The polymerizable composition can be cured to provide a polythioether having excellent optical properties (a high refractive index and a high Abbe's number) as well as excellent mechanical properties (a high bending distortion and a high glass transition temperature) and thus exhibiting excellent properties as an optical material.