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:
Mar. 06, 2018
Filed:
Jun. 17, 2016
Applicant:
Dong-a Pencil Co., Ltd., Seoul, KR;
Inventor:
Hak Jae Kim, Daejeon, KR;
Assignee:
Dong-A Pencil Co., Ltd., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B41M 5/28 (2006.01); B41M 5/333 (2006.01); C09D 11/50 (2014.01); C09K 9/02 (2006.01); C09D 11/17 (2014.01); C09D 163/00 (2006.01); E06B 9/24 (2006.01); B43K 7/02 (2006.01); B43K 8/03 (2006.01);
U.S. Cl.
CPC ...
C09D 11/50 (2013.01); B41M 5/284 (2013.01); B41M 5/287 (2013.01); B41M 5/3333 (2013.01); B41M 5/3335 (2013.01); B43K 7/02 (2013.01); B43K 8/03 (2013.01); C09D 11/17 (2013.01); C09D 163/00 (2013.01); C09K 9/02 (2013.01); E06B 9/24 (2013.01); E06B 2009/2417 (2013.01);
Abstract
The present invention relates to thermochromic micro particles capable of stably implementing a high chromogenic property and a decolorization property and having an improved erasing property, thermal resistance, and chemical resistance, and a thermochromic ink composition, a writing apparatus, and a smart window using the same. The thermochromic micro particles comprise a core part including a phase change material and a dye, the phase change material including a phenol-based compound containing an aliphatic functional group having a carbon number of 6 or more; and a shell layer including a polymer resin.