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1. WO2020111338 - OPTICAL CLEAR ADHESIVE TAPE HAVING IMPROVED LEVEL DIFFERENCE ABSORBABILITY AND MANUFACTURING METHOD THEREFOR

Publication Number WO/2020/111338
Publication Date 04.06.2020
International Application No. PCT/KR2018/015055
International Filing Date 30.11.2018
IPC
C09J 7/38 2018.01
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
7Adhesives in the form of films or foils
30characterised by the adhesive composition
38Pressure-sensitive adhesives
C09J 133/08 2006.01
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
133Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
04Homopolymers or copolymers of esters
06of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
08Homopolymers or copolymers of acrylic acid esters
C09J 11/06 2006.01
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
11Features of adhesives not provided for in group C09J9/76
02Non-macromolecular additives
06organic
CPC
C09J 11/06
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIAL AS ADHESIVES
11Features of adhesives not provided for in group C09J9/00, e.g. additives
02Non-macromolecular additives
06organic
C09J 133/08
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIAL AS ADHESIVES
133Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
04Homopolymers or copolymers of esters
06of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
08Homopolymers or copolymers of acrylic acid esters
C09J 7/38
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIAL AS ADHESIVES
7Adhesives in the form of films or foils
30characterised by the adhesive composition
38Pressure-sensitive adhesives [PSA]
Applicants
  • 주식회사 영우 YOUNGWOO CO., LTD. [KR]/[KR]
Inventors
  • 이지혜 LEE, Ji Hye
  • 남승웅 NAM, Seung Woong
  • 예광남 YE, Kwang Nam
  • 임회득 LIM, Hoi Deuk
  • 박민수 PARK, Min Soo
Agents
  • 김홍균 KIM, Hong Gyun
Priority Data
10-2018-015159430.11.2018KR
Publication Language Korean (KO)
Filing Language Korean (KO)
Designated States
Title
(EN) OPTICAL CLEAR ADHESIVE TAPE HAVING IMPROVED LEVEL DIFFERENCE ABSORBABILITY AND MANUFACTURING METHOD THEREFOR
(FR) RUBAN ADHÉSIF TRANSPARENT OPTIQUE PRÉSENTANT UNE CAPACITÉ D'ABSORPTION DE DIFFÉRENCE DE NIVEAU AMÉLIORÉE ET SON PROCÉDÉ DE FABRICATION
(KO) 단차 흡수성이 향상된 광학 투명 점착 테이프 및 이의 제조방법
Abstract
(EN)
The present invention relates to an optical clear adhesive tape. The optical clear adhesive tape is prepared from an optical clear adhesive composition comprising: a prepolymer syrup in which an acrylate-based compound and a photoinitiator are partially polymerized; a primary curing photoinitiator; and a secondary curing photoinitiator. The optical clear adhesive composition is primarily cured to be maintained in a semi-cured state. The optical clear adhesive composition in a semi-cured state is applied to a substrate having a step and then completely cured by secondary curing, whereby the resulting optical clear adhesive tape has level difference absorbability. The optical adhesive tape of the present invention has excellent level difference absorbability and durability.
(FR)
La présente invention concerne un ruban adhésif transparent optique. Le ruban adhésif transparent optique est préparé à partir d'une composition adhésive transparente optique comprenant : un sirop de prépolymère dans lequel un composé à base d'acrylate et un photo-initiateur sont partiellement polymérisés ; un photo-initiateur de durcissement primaire ; et un photo-initiateur de durcissement secondaire. La composition adhésive transparente optique est premièrement durcie pour être maintenue dans un état semi-durci. La composition adhésive transparente optique dans un état semi-durci est appliquée sur un substrat présentant un épaulement puis complètement durcie par durcissement secondaire, le ruban adhésif transparent optique obtenu ayant de ce fait une capacité d'absorption de différence de niveau. Le ruban adhésif optique de la présente invention présente une excellente capacité d'absorption de différence de niveau et une excellente durabilité.
(KO)
본 발명은 광학 투명 점착 테이프에 관한 것으로, 아크릴레이트계 화합물 및 광개시제를 부분 중합한 예비중합체 시럽, 1차 경화용 광개시제 및 2차 경화용 광개시제를 포함하는 광학 투명 점착 조성물로부터 제조되고, 상기 광학 투명 점착 조성물이 1차 경화됨으로써 반경화 상태가 유지되고, 반경화 상태로 단차를 갖는 기판에 점착된 후, 2차 경화됨으로써 완전 경화되는 단차 흡수성을 갖는 광학 투명 점착 테이프이다. 본 발명의 광학 점착 테이프는 단차 흡수성 및 내구성이 우수한 효과가 있다.
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