IP Library Granted Patent US 9,281,097
Granted Patent B2
US 9,281,097 · App. 14/056,989 · Granted Mar 8, 2016

Anisotropic conductive film, composition for the same, and apparatus including the same

Inventors: Youn Jo Ko (Uiwang-si, KR); Dong Seon Uh (Uiwang-si, KR); Jang Hyun Cho (Uiwang-si, KR); Jin Seong Park (Uiwang-si, KR); Sang Sik Bae (Uiwang-si, KR); Jin Kyu Kim (Uiwang-si, KR)
Assignee: CHEIL INDUSTRIES, INC.
H01B1/22C08F290/067C09J4/06C09J9/02C09J175/16
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Quick Facts
Patent No.
US 9,281,097
App. No.
14/056,989
Granted
Mar 8, 2016
Kind
B2
Abstract

An anisotropic conductive film includes a binder part, a curing part, an initiator, and conductive particles, wherein the binder part includes at least one of a nitrile butadiene rubber (NBR) resin and a urethane resin, the anisotropic conductive film has a halogen ion content of more than 0 ppm to about 100 ppm.

Claims (31)

1. An anisotropic conductive film, comprising:

a binder part;

a curing part;

an initiator; and

conductive particles,

wherein the binder part includes at least one of a nitrile butadiene rubber (NBR) resin and a urethane resin, and the anisotropic conductive film has a halogen ion content of more than 0 ppm to about 100 ppm.

2. The anisotropic conductive film as claimed in claim 1 , wherein the anisotropic conductive film has the halogen ion content of more than 0 ppm to about 50 ppm.

3. The anisotropic conductive film as claimed in claim 1 , wherein the anisotropic conductive film has an electrical conductivity of more than 0 μS/cm to about 100 μS/cm.

4. The anisotropic conductive film as claimed in claim 1 , wherein the binder part includes the NBR resin, and the NBR resin has a halogen ion content of more than 0 ppm to about 100 ppm.

5. The anisotropic conductive film as claimed in claim 1 , wherein the binder part includes the urethane resin, and the urethane resin has a halogen ion content of more than 0 ppm to about 100 ppm.

6. The anisotropic conductive film as claimed in claim 1 , wherein the binder part further includes an acrylic resin.

7. The anisotropic conductive film as claimed in claim 6 , wherein the binder part includes about 20 to about 80% by weight (wt %) of the acrylic resin and about 20 to about 80 wt % of the NBR resin, the NBR resin having a halogen ion content of more than 0 ppm to about 100 ppm.

8. The anisotropic conductive film as claimed in claim 6 , wherein the binder part includes about 20 to about 80 wt % of the acrylic resin and about 20 to about 80 wt % of the urethane resin, the urethane resin having a halogen ion content of more than 0 ppm to about 100 ppm.

9. The anisotropic conductive film as claimed in claim 6 , wherein the binder part includes about 20 to about 90 wt % of the acrylic resin, about 5 to about 55 wt % of the NBR resin, the NBR resin having a halogen ion content of more than 0 ppm to about 100 ppm, and about 5 to about 40 wt % of the urethane resin, the urethane resin having a halogen ion content of more than 0 ppm to about 100 ppm.

10. The anisotropic conductive film as claimed in claim 1 , wherein the binder part further includes at least one thermoplastic resin selected from acrylonitrile, polyamide, olefin and silicone resins.

11. The anisotropic conductive film as claimed in claim 1 , wherein the curing part includes at least one of a urethane (meth)acrylate and a (meth)acrylate monomer.

12. The anisotropic conductive film as claimed in claim 1 , wherein the initiator includes a radical initiator.

13. The anisotropic conductive film as claimed in claim 1 , wherein the anisotropic conductive film includes about 20 to about 78 wt % of the binder part, about 20 to about 50 wt % of the curing part, about 1 to about 10 wt % of the radical initiator and about 1 to about 20 wt % of the conductive particles in a solid state.

14. The anisotropic conductive film as claimed in claim 1 , wherein the anisotropic conductive film further includes a polyurethane bead.

15. The anisotropic conductive film as claimed in claim 14 , wherein the polyurethane bead includes an ion-exchanged polyurethane bead.

16. The anisotropic conductive film as claimed in claim 14 , wherein the polyurethane bead has a halogen ion content of more than 0 ppm to about 10 ppm.

17. The anisotropic conductive film as claimed in claim 14 , wherein the polyurethane bead is included in an amount of about 1 to about 10 parts by weight based on 100 parts by weight of the anisotropic conductive film in terms of solid content.

18. A composition for an anisotropic conductive film, the composition comprising:

a binder part;

a curing part;

an initiator; and

conductive particles,

wherein:

the binder part includes at least one of a nitrile butadiene rubber (NBR) resin and a urethane resin, and

the anisotropic conductive film has a halogen ion content of more than 0 ppm to about 100 ppm.

19. An apparatus comprising the anisotropic conductive film of claim 1 .

Assignments (4)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 30, 2022
From: KUKDO CHEMICAL CO., LTD.
To: KUKDO ADVANCED MATERIALS CO., LTD.
Reel/Frame 060940/0414 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 7, 2019
From: SAMSUNG SDI CO., LTD.
To: KUDKO CHEMICAL CO., LTD.
Reel/Frame 050640/0740 →
MERGER AND CHANGE OF NAME Recorded Oct 7, 2019
From: CHEIL INDUSTRIES INC.; SAMSUNG SDI CO., LTD.; SAMSUNG SDI CO., LTD.
To: SAMSUNG SDI CO., LTD.
Reel/Frame 050646/0718 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 18, 2013
From: KO, YOUN JO; UH, DONG SEON; CHO, JANG HYUN; PARK, JIN SEONG; BAE, SANG SIK; KIM, JIN KYU
To: CHEIL INDUSTRIES, INC.
Reel/Frame 031430/0069 →
Priority Claims (1)
KR 10-2010-0138221 · Dec 29, 2010 · national
Continuity (2)
Continuation In Part 13241811 · Sep 23, 2011
Related Publication 20140042374A1 · Feb 13, 2014