IP Library Granted Patent US 10,795,469
Granted Patent B2
US 10,795,469 · App. 14/903,304 · Granted Oct 6, 2020

Laminate containing conductive fiber, photosensitive conductive film, method for producing conductive pattern, conductive pattern substrate, and touch panel

Inventors: Masahiko Ebihara (Tokyo, JP); Emiko Oota (Tokyo, JP); Yasuharu Murakami (Tokyo, JP)
Assignee: HITACHI CHEMICAL COMPANY, LTD.
G06F3/041G06F3/044H05K1/0274H05K1/0296H05K1/0373H05K3/02G06F2203/04103H05K2201/0302
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Quick Facts
Patent No.
US 10,795,469
App. No.
14/903,304
Granted
Oct 6, 2020
Kind
B2
Abstract

A laminate which includes a substrate 230 , conductive fibers 221 and a resin layer, wherein, in said laminate, a ratio of increase in resistance after irradiation with light emitted from a xenon lamp at an intensity of 60 W/m 2 (integrated value of spectral irradiance at a wavelength of 300 nm to 400 nm) for 300 hours is 20% or less.

Claims (8)

1. A laminate which comprises a substrate, a resin layer provided on the substrate, and a conductive film comprising conductive fibers provided on the resin layer, wherein the resin layer includes at least one metal additive different from the conductive fibers, and wherein, in said laminate, a ratio of increase in resistance after irradiation with light emitted from a xenon lamp at an intensity of 60 W/m 2 (integrated value of spectral irradiance at a wavelength of 300 nm to 400 nm) for 300 hours is 20% or less, wherein the at least one metal additive comprises a metal complex compound represented by the following formula (3):

wherein M 1 is a metal atom selected from aluminum, titanium, and zirconium, R 5 is independently an alkyl group having 1 to 18 carbon atoms, R 8 and R 9 are independently a hydrogen atom, a hydroxyl group, an alkyl group having 1 to 18 carbon atoms, an alkyl alcohol residue having 1 to 18 carbon atoms or an aminoalkyl group having 1 to 18 carbon atoms, R 11 to R 14 are a hydrogen atom, a hydroxy group, an alkyl group having 1 to 18 carbon atoms or a hydroxyalkyl group having 1 to 18 carbon atoms, a is an integer of 0 to 4, b is an integer of 0 to 4, c is an integer of 0 to 4, and the sum of a, b and c is 3 or 4.

2. A touch panel comprising the laminate according to claim 1 , wherein the touch panel has a shield part.

3. The laminate according to claim 1 , wherein the conductive fibers are silver fibers.

4. The laminate according to claim 1 , wherein the thickness of the conductive film is 5 nm to 0.1 μm.

5. The laminate according to claim 1 , wherein the fiber diameter of the conductive fibers is 1 nm to 50 nm and, wherein the fiber length of the conductive fibers is 1 μm to 100 μm.

6. The laminate according to claim 1 , wherein the resin layer further comprises an amine additive, and wherein the amine additive comprises an amino group-containing silane compound.

7. The laminate according to claim 1 , wherein the resin layer comprises a polymer obtained by polymerization of photopolymerizable compound and a binder polymer.

Assignments (3)
CHANGE OF NAME Recorded Mar 3, 2023
From: SHOWA DENKO MATERIALS CO., LTD.
To: RESONAC CORPORATION
Reel/Frame 062946/0125 →
CHANGE OF NAME Recorded Mar 2, 2023
From: HITACHI CHEMICAL COMPANY, LTD.
To: SHOWA DENKO MATERIALS CO., LTD.
Reel/Frame 062917/0865 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 7, 2016
From: EBIHARA, MASAHIKO; OOTA, EMIKO; MURAKAMI, YASUHARU
To: HITACHI CHEMICAL COMPANY, LTD
Reel/Frame 037427/0591 →