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. 26, 2015
Filed:
Nov. 30, 2010
Jiro Abe, Kanagawa, JP;
Atsuhiro Tokita, Tokyo, JP;
Takeru Horino, Tokyo, JP;
Toyoji Oshima, Tokyo, JP;
Atsushi Kimoto, Hyogo, JP;
Jiro Abe, Kanagawa, JP;
Atsuhiro Tokita, Tokyo, JP;
Takeru Horino, Tokyo, JP;
Toyoji Oshima, Tokyo, JP;
Atsushi Kimoto, Hyogo, JP;
MITSUBISHI GAS CHEMICAL COMPANY, INC., Tokyo, JP;
Other;
Abstract
Provided are: a method for controlling the decoloration reaction rate and color density of a fast light-modulating material to levels suitable for practical use; and a fast light-modulating material having a decoloration reaction rate and a color density which are suitable for practical use. A polymer obtained by polymerizing a paracyclophane-bridged hexaarylbisimidazole compound having a radical-polymerizable group, and a copolymer obtained by copolymerizing the compound with a (meth)acrylic acid compound or a sensitizer having a radical-polymerizable group can achieve controlled decoloration reaction rates, photosensitivity and color tones.