US 10,479,852 B2 · Hydrochromic polydiacetylene composite composition, hydrochromic thin film using same, and use thereof

Abstract

The present invention relates to a hydrochromic polydiacetylene composite composition, a hydrochromic thin film using same, and a use thereof, and more specifically, to a hydrochromic polydiacetylene composite composition reacting sensitively to moisture, providing the hydrochromic thin film using same, and to applying same to biorecognition or fingerprint recognition. According to the present invention, moisture secreted from a fingerprint or pores on the skin can be detected with high sensitivity. Thus, the position of pores unique to a fingerprint of an organism can be amplified and displayed through selective color change and fluorescent change patterns exhibited when moisture is absorbed.

Claims9

Dependent claims

A method of sensing moisture, comprising:

providing a polydiacetylene composite composition including a polydiacetylene polymerized from diacetylene monomers that are complexed with an alkali metal ionic compound to give a diacetylene composite, and
detecting color or fluorescent transition of the polydiacetylene composite composition after exposing the polydiacetylene composite composition to the moisture,
wherein each of the diacetylene monomers is a compound represented by the following Chemical Formula (2), or an mBzA compound in which a benzamide group is incorporated into a diacetylene molecule,
CH3(CH2)m-C≡C—C≡C—(CH2)n-COOH [Chemical Formula 2]
wherein m+n is an integer of 2 to 50.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application

15/468,072Filed 23 Mar 2017 · continuation

Priority

KR 10-2013-000592318 Jan 2013

Published

US 2017/0190814 A16 Jul 2017

Granted

19 Nov 2019

Term ends

Not estimatedThe source records don’t support an estimate.

Classification18 codes

C08F 138/02
Homopolymers of compounds having one or more carbon-to-carbon triple bonds: acetylene
A61B 5/1172
Based on the shapes or appearances of their bodies or parts thereof: using fingerprinting
A61B 5/4266
Evaluating exocrine secretion production: sweat secretion
C08F 2/44
Processes of polymerisation: polymerisation in the presence of compounding ingredients, e.g. plasticisers, dyestuffs, fillers

Family

PCT/KR2014/000522Parent of this continuation · filed 17 Jan 2014

US 2017/0190814 A1Pre-grant publication · published 6 Jul 2017

Application14/761,132Parent of this continuation

US 2015/0329656 A1Published application

US 10,479,852 B2This patent

From the US filing history. Foreign family members aren’t listed.

Hydrochromic polydiacetylene composite composition, hydrochromic thin film using same, and use thereof

Life of this patent

Hydrochromic polydiacetylene composite composition, hydrochromic thin film using same, and use thereof

Life of this patent

Abstract

Claims9