IP Library Granted Patent US 11,125,918
Granted Patent B2
US 11,125,918 · App. 16/591,085 · Granted Sep 21, 2021

Resin composition for a polarizer protective film, a polarizer protective film, a polarizing plate including the same, and a preparation method of a polarizing plate

Inventors: Hye Min Kim (Daejeon, KR); Yeong Rae Chang (Daejeon, KR); Heon Kim (Daejeon, KR)
Assignee: LG CHEM, LTD.
G02B1/14B05D1/40B05D3/067B32B7/02B32B37/025C08J5/18C09D133/064C09D133/066C09D133/14G02B5/305B29B13/08B29K2633/08B29K2995/0034B29L2011/0066B29L2031/3475
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Quick Facts
Patent No.
US 11,125,918
App. No.
16/591,085
Granted
Sep 21, 2021
Kind
B2
Abstract

The present invention relates to a resin composition for a polarizer protective film, a polarizer protective film, a polarizing plate including the same, and a preparation method of a polarizing plate, and, more specifically, to a resin composition for a polarizer protective film and a polarizer protective film exhibiting high hardness and excellent properties, a polarizing plate including the same, and a preparation method of a polarizing plate. According to the polarizing plate of the present invention, it can be usefully utilized in various fields because of its excellent hardness, flexibility, and optical properties.

Claims (8)

1. A resin composition, including:

a binder including 20 to 80 parts by weight of a multifunctional acrylate monomer, 20 to 80 parts by weight of an acrylate oligomer having an elongation of 10 to 50%, and 1 to 10 parts by weight of a photoinitiator, wherein the total weight of the binder is 100 parts by weight; and

wherein the acrylate oligomer has 3 to 6 functional groups and is modified with one or more selected from the group consisting of ethylene oxide and propylene oxide.

2. The resin composition according to claim 1 , further including inorganic particles.

3. The resin composition according to claim 2 , including 1 to 100 parts by weight of the inorganic particles when the total weight of the binder is 100 parts by weight.

4. A polarizer protective film, including a cured resin formed from the resin composition of claim 1 .

5. The polarizer protective film according to claim 4 , further including inorganic particles which are dispersed in the cured resin.

6. The polarizer protective film according to claim 5 , including 1 to 100 parts by weight of the inorganic particles when the total weight of the cured resin is 100 parts by weight.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 24, 2025
From: LG CHEM, LTD.
To: XINMEI FONTANA HOLDING (HONG KONG) LIMITED
Reel/Frame 070608/0517 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 23, 2025
From: LG CHEM, LTD
To: XINMEI FONTANA HOLDING (HONG KONG) LIMITED
Reel/Frame 070609/0245 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 15, 2025
From: KIM, HYE MIN; CHANG, YEONG RAE; KIM, HEON
To: LG CHEM, LTD.
Reel/Frame 070226/0808 →
Priority Claims (4)
KR 10-2013-0033002 · Mar 27, 2013 · national
KR 10-2013-0033004 · Mar 27, 2013 · national
KR 10-2014-0035588 · Mar 26, 2014 · national
KR 10-2014-0035589 · Mar 26, 2014 · national
Continuity (2)
Division 14780957
Related Publication 20200033510A1 · Jan 30, 2020