KR101716647B1 - 고굴절 올리고머, 그를 함유한 프리즘 시트성형용 레진 조성물 및 그를 이용한 프리즘 시트 - Google Patents
고굴절 올리고머, 그를 함유한 프리즘 시트성형용 레진 조성물 및 그를 이용한 프리즘 시트 Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C271/00—Derivatives of carbamic acids, i.e. compounds containing any of the groups, the nitrogen atom not being part of nitro or nitroso groups
- C07C271/06—Esters of carbamic acids
- C07C271/08—Esters of carbamic acids having oxygen atoms of carbamate groups bound to acyclic carbon atoms
- C07C271/26—Esters of carbamic acids having oxygen atoms of carbamate groups bound to acyclic carbon atoms with the nitrogen atom of at least one of the carbamate groups bound to a carbon atom of a six-membered aromatic ring
- C07C271/28—Esters of carbamic acids having oxygen atoms of carbamate groups bound to acyclic carbon atoms with the nitrogen atom of at least one of the carbamate groups bound to a carbon atom of a six-membered aromatic ring to a carbon atom of a non-condensed six-membered aromatic ring
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- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C69/00—Esters of carboxylic acids; Esters of carbonic or haloformic acids
- C07C69/52—Esters of acyclic unsaturated carboxylic acids having the esterified carboxyl group bound to an acyclic carbon atom
- C07C69/533—Monocarboxylic acid esters having only one carbon-to-carbon double bond
- C07C69/54—Acrylic acid esters; Methacrylic acid esters
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
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- C08L75/16—Polyurethanes having carbon-to-carbon unsaturated bonds having terminal carbon-to-carbon unsaturated bonds
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- G—PHYSICS
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- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
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- Optics & Photonics (AREA)
- Macromonomer-Based Addition Polymer (AREA)
Abstract
본 발명은 양 말단에 아크릴 관능기를 포함하고 분자 구조 내 우레탄 관능기가 적어도 2개 이상 포함하고, 굴절률 1.61 이상을 충족하는 저점도 및 저황변 타입의 고굴절 올리고머를 제공하며, 상기 고굴절 올리고머를 함유하거나, 상기 고굴절 올리고머와 고굴절 모노머간의 배합비율을 최적화한 프리즘 시트성형용 레진 조성물을 통해, 경화전 액상의 고굴절률과 저점도를 구현하고, 투명성과 내황변성의 양호할 뿐 아니라, 경화 후 우수한 접착력과 연필경도를 충족하여 프리즘 시트를 제공할 수 있다. 이에, 본 발명의 프리즘 시트는 동일 휘도를 구현하기 위해 적용되는 시트의 개수를 줄여 슬림화 및 성능의 향상과 원가 절감에 기여함으로써, 백라이트 유닛에 사용되는 LED 램프의 개수를 줄일 수 있으므로 에너지 절감 효과를 제공한다.
Description
도 2는 경도 측정 시, 연필경도 H 측정시편에 대한 현미경(×5배) 사진이고,
도 3은 본 발명의 프리즘 시트성형용 조성물의 접착력 실험결과로서, 크로스-컷 100%인 경우의 사진이고,
도 4는 본 발명의 프리즘 시트성형용 조성물의 접착력 실험결과로서, 크로스-컷 70%인 경우의 사진이다.
Claims (12)
- 삭제
- 삭제
- 삭제
- 삭제
- 제5항에 있어서, 상기 조성물이
1) 경화 전 액상의 굴절률이 1.57 이상이고,
2) 경화 후 필름의 경도가 연필경도 HB 이상을 충족하는 프리즘 시트성형용 레진 조성물. - 삭제
- 삭제
- 제7항에 있어서, 상기 조성물이 경화 전,
1) 액상의 굴절률이 1.57 이상이고,
2) 점도(25℃)가 1,200 cPs 이하를 충족하는 프리즘 시트성형용 레진 조성물. - 제7항에 있어서, 상기 조성물이 경화 후,
1) 필름의 크로스-컷 100%의 접착력을 충족하고
2) 경도가 연필경도 HB 이상인 것을 특징으로 하는 프리즘 시트성형용 레진 조성물. - 제5항 또는 제7항의 프리즘 시트성형용 레진 조성물로 성형된 프리즘 시트.
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