COMPOSITE TEMPERATURE INDICATION ARTICLE AND PREPARATION METHOD AND USE THEREOF

Title:

COMPOSITE TEMPERATURE INDICATION ARTICLE AND PREPARATION METHOD AND USE THEREOF

Document Type and Number:

WIPO Patent Application WO/2019/090472

Kind Code:

A1

Abstract:

Disclosed is a composite temperature indication article and a preparation method and the use thereof, wherein the composite temperature indication article comprises: a porous film (1), wherein same is opaque to at least part of visible light, or is opaque to at least some visible light and at least some ultraviolet light; and a composite coloring layer (2), located on the lower surface of the porous film (1), wherein the composite coloring layer (2) comprises a polymer bonding material, and a crystalline material and a colorant. A preferred polymer bonding material is a cross-linked pressure sensitive adhesive material, wherein the crystalline material and the colorant are dispersed in the polymer bonding material, and the polymer bonding material is a non-crystalline material, or the melting point of the non-crystalline material is higher than that of the crystalline material. The crystalline material may migrate into the porous film (1) after being melted by heat, and fills the holes therein, allowing the porous film (1) to be transparent to visible light.

Inventors:

LI CHENG (CN)
GONG GUANGMING (CN)
SHI YING (CN)
JIN ZHOU (CN)
GUAN ZHENG (CN)

Application Number:

PCT/CN2017/109717

Publication Date:

May 16, 2019

Filing Date:

November 07, 2017

Export Citation:

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Assignee:

3M INNOVATIVE PROPERTIES CO (US)
LI CHENG (CN)

International Classes:

G01K11/06

Foreign References:

US4428321A	1984-01-31
CN1721831A	2006-01-18
CN1118696C	2003-08-20
CN103289590A	2013-09-11
CN105172283A	2015-12-23
CN1138523A	1996-12-25
EP1281946A1	2003-02-05
CN1174987A	1998-03-04
US20060011124A1	2006-01-19
US4428321A	1984-01-31

Other References: