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. 08, 2013
Filed:
Oct. 27, 2006
Masanori Watanabe, Ube, JP;
Takafumi Hirakawa, Ube, JP;
Atsushi Morikami, Ube, JP;
Yasushi Nakamoto, Ube, JP;
Masanori Watanabe, Ube, JP;
Takafumi Hirakawa, Ube, JP;
Atsushi Morikami, Ube, JP;
Yasushi Nakamoto, Ube, JP;
UBE Industries, Ltd., Ube-Shi, JP;
Abstract
Disclosed is a polythiocarbonate poly(thio)epoxide in which a hydrogen atom in a mercapto group of a polythiocarbonate polythiol is substituted with a (thio)epoxy-containing group. By using this compound as a starting material, there can be obtained a polythioether or a sulfur-containing polyether having, in addition to excellent optical properties (a high refractive index and a high Abbe's number), excellent mechanical properties (a high bending distortion) and a high glass transition temperature.