IP Library Granted Patent US 8,288,450
Granted Patent B2
US 8,288,450 · App. 13/158,857 · Granted Oct 16, 2012

Adhesive composition and optical member using the same

Assignee: Cheil Industries, Inc.
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Quick Facts
Patent No.
US 8,288,450
App. No.
13/158,857
Filed
Jun 13, 2011
Granted
Oct 16, 2012
Kind
B2
Art Unit
1765
USPC
522/78
Abstract

An adhesive composition and an optical member, the adhesive composition including 100 parts by weight of a polymer prepared by polymerization of (meth)acrylic ester containing monomers; 0.01 to about 3 parts by weight of an antistatic agent containing an ionic compound and/or a lithium salt; 0 to about 1 part by weight of a silane coupling agent; and about 3 to about 20 parts by weight of a benzotriazole group containing compound; and about 0.05 to about 5 parts by weight of a cross-linking agent, or about 3 to about 30 parts by weight of a multifunctional (meth)acrylate monomer, and 0 to about 5 parts by weight of an active energy-ray initiator.

Claims (27)

1. An adhesive composition, comprising:

100 parts by weight of a polymer prepared by polymerization of (meth)acrylic ester containing monomers;

0.01 to about 3 parts by weight of an antistatic agent containing an ionic compound and/or a lithium salt;

0 to about 1 part by weight of a silane coupling agent; and

about 3 to about 20 parts by weight of a benzotriazole group containing compound represented by at least one of the following Formulae II to V; and

about 0.05 to about 5 parts by weight of a cross-linking agent, or

about 3 to about 30 parts by weight of a multifunctional (meth)acrylate monomer, and 0 to about 5 parts by weight of an active energy-ray initiator; and

wherein the adhesive composition has a surface resistance of less than about 1×10 10 (Ω/sq) when the adhesive composition is applied to a substrate:

wherein each R 1 independently represents a C1-4 alkyl or halogen, p is from 0 to 4; R 2 represents at least one of a C1-12 alkyl, a C5-7 cycloalkyl, a C5-7 cycloalkyl substituted by one to three C1-4 alkyl groups, and a C5-7 cycloalkyl- substituted C1-4 alkyl; R 3 represents at least one of hydrogen, a C1-12 alkyl, a C5-7 cycloalkyl, a C5-7 cycloalkyl substituted by one to three C1-4 alkyl groups, a C5-7 cycloalkyl-substituted C1-4 alkyl, a phenyl, a phenyl-C1-4 alkyl, a phenyl substituted by one to three C1-4 alkyl groups, and a phenyl-C1-4 alkyl substituted by one to three C1-4 alkyl groups; and q is 1 to 3.

2. The adhesive composition as claimed in claim 1 , wherein the benzotriazole group containing compound represented by one of Formulae II to V is represented by one of the following compounds:

3. An optical member comprising an adhesive layer prepared from the adhesive composition as claimed in claim 1 .

4. The optical member as claimed in claim 3 , wherein the benzotriazole group containing compound represented by one of Formulae II to V is represented by one of the following compounds:

5. An adhesive composition, comprising:

100 parts by weight of a polymer prepared by polymerization of (meth)acrylic ester containing monomers;

0.01 to about 3 parts by weight of an antistatic agent containing an ionic compound and/or a lithium salt;

0 to about 1 part by weight of a silane coupling agent; and

about 3 to about 20 parts by weight of a benzotriazole group containing compound represented by at least one of the following Formulae II to V; and at least one of:

about 0.05 to about 5 parts by weight of a cross-linking agent, and

about 3 to about 30 parts by weight of a multifunctional (meth)acrylate monomer; and

wherein the adhesive composition has a surface resistance of less than about 1×10 10 (Ω/sq) when the adhesive composition is applied to a substrate:

wherein each R 1 independently represents a C1-4 alkyl or halogen, p is from 0 to 4; R 2 represents at least one of a C1-12 alkyl, a C5-7 cycloalkyl, a C5-7 cycloalkyl substituted by one to three C1-4 alkyl groups, and a C5-7 cycloalkyl- substituted C1-4 alkyl; R 3 represents at least one of hydrogen, a C1-12 alkyl, a C5-7 cycloalkyl, a C5-7 cycloalkyl substituted by one to three C1-4 alkyl groups, a C5-7 cycloalkyl- substituted C1-4 alkyl, a phenyl, a phenyl-C1-4 alkyl, a phenyl substituted by one to three C1-4 alkyl groups, and a phenyl-C1-4 alkyl substituted by one to three C1-4 alkyl groups; and q is 1 to 3.

6. The adhesive composition as claimed in claim 5 , wherein the composition includes the multifunctional (meth)acrylate monomer and further includes an active energy-ray initiator, the active energy-ray initiator being present in an amount of up to about 5 parts by weight.

7. The adhesive composition as claimed in claim 5 , wherein the benzotriazole group containing compound represented by one of Formulae II to V is represented by one of the following compounds:

8. An optical member comprising an adhesive layer prepared from the adhesive composition as claimed in claim 5 .

9. The optical member as claimed in claim 8 , wherein the benzotriazole group containing compound represented by one of Formulae II to V is represented by one of the following compounds:

10. The adhesive composition as claimed in claim 1 , wherein the adhesive composition comprises greater than 10 and less than about 20 parts by weight of the benzotriazole group containing compound.

11. The adhesive composition as claimed in claim 5 , wherein the adhesive composition comprises greater than 10 and less than about 20 parts by weight of the benzotriazole group containing compound.

Assignments (4)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 4, 2026
From: WUXI HENGXIN OPTOELECTRONIC MATERIALS CO., LTD.
To: HOARDSUN HENGXIN(WUXI) MATERIALS CO., LTD.
Reel/Frame 075049/0450 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 14, 2025
From: SAMSUNG SDI CO., LTD.
To: WUXI HENGXIN OPTOELECTRONIC MATERIALS CO., LTD.
Reel/Frame 073062/0496 →
MERGER Recorded Jun 16, 2025
From: CHEIL INDUSTRIES INC.
To: SAMSUNG SDI CO., LTD.
Reel/Frame 071636/0099 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 13, 2011
From: SONG, CHEONG HUN; OGAWA, HIROSHI; SUWA, TATSUHIRO
To: CHEIL INDUSTRIES, INC.
Reel/Frame 026501/0317 →
Priority Claims (1)
JP 2008-330150 · Dec 25, 2008 · national
Continuity (2)
Continuation PCTKR2009007747 · Dec 23, 2009
Related Publication 20110245364A1 · Oct 6, 2011