Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Acrylic pressure-sensitive adhesive sheet, acrylic pressure-sensitive adhesive sheet manufacturing method, and laminated construction

A technology of pressure-sensitive adhesive sheet and pressure-sensitive adhesive layer, applied in the field of lamination structure, can solve problems such as insufficient cohesion, and achieve the effects of high corrosion resistance and high adhesion reliability

Inactive Publication Date: 2014-03-26
NITTO DENKO CORP
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it also discloses that cohesion is insufficient if the monomer having a carboxyl group is not contained in an amount greater than 1 part by mass

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Acrylic pressure-sensitive adhesive sheet, acrylic pressure-sensitive adhesive sheet manufacturing method, and laminated construction
  • Acrylic pressure-sensitive adhesive sheet, acrylic pressure-sensitive adhesive sheet manufacturing method, and laminated construction
  • Acrylic pressure-sensitive adhesive sheet, acrylic pressure-sensitive adhesive sheet manufacturing method, and laminated construction

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0173] To 100 parts by mass of a mixture containing 86.5 parts by mass of 2-ethylhexyl acrylate, 12 parts by mass of N-vinyl-2-pyrrolidone and 1.5 parts by mass of hydroxyethylacrylamide, blend 0.05 parts by mass of 2,2-dimethoxy Base-1,2-diphenylethane-1-one (trade name "IRGACURE 651", manufactured by Ciba Japan K.K.) and 0.05 parts by mass of 1-hydroxy-cyclohexyl-benzophenone (trade name "IRGACURE 184", manufactured by Ciba Japan K.K.) was used as a photopolymerization initiator, and nitrogen gas was sufficiently introduced. The resulting mixture was exposed to ultraviolet light under a nitrogen atmosphere to allow photopolymerization, thereby obtaining a partially polymerized product (syrup or slurry-type composition) in which the conversion rate was 11%.

[0174] To the aforementioned partially polymerized product, 0.3 parts by mass of a reaction product of trimethylolpropane and toluene diisocyanate (trade name "CORONATE L", manufactured by Nippon Polyurethane Industry Co...

Embodiment 2

[0178] In addition to using 100 parts by mass of a mixture containing 70 parts by mass of 2-ethylhexyl acrylate, 26 parts by mass of N-vinyl-2-pyrrolidone and 4 parts by mass of hydroxyethylacrylamide; and adding 0.01 parts by mass of 1,6- A pressure-sensitive adhesive layer was prepared in the same manner as in Example 1 except that hexanediol diacrylate was used as a crosslinking agent.

[0179] The gel fraction of the pressure-sensitive adhesive layer was 63.2% by mass.

Embodiment 3

[0181] Except using 100 parts by mass of a mixture containing 70 parts by mass of 2-ethylhexyl acrylate, 26 parts by mass of N-vinyl-2-pyrrolidone and 4 parts by mass of methylolacrylamide (N-methylolacrylamide); and A pressure-sensitive adhesive layer was prepared in the same manner as in Example 1 except that 0.03 parts by mass of 1,6-hexanediol diacrylate was added as a crosslinking agent.

[0182] The gel fraction of the pressure-sensitive adhesive layer was 73.1% by mass.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
visible light transmittanceaaaaaaaaaa
gel fractionaaaaaaaaaa
gel fractionaaaaaaaaaa
Login to View More

Abstract

The present invention provides a pressure-sensitive adhesive sheet having a pressure-sensitive adhesive layer which has both high corrosion resistance and adhesion reliability. The acrylic pressure-sensitive adhesive sheet of the present invention contains at least an acrylic pressure-sensitive adhesive layer containing as a main component an acrylic polymer formed from a composition containing a monomer mixture or a partially polymerized product thereof, in which the monomer mixture contains the following (m1), (m2) and (m3), or (m1), (m2), (m3) and (m4), and in which a content of each component (m1), (m2), (m3), and (m4) is 35 to 97.5% by mass, 2 to 40% by mass, 0.1 to 25% by mass, and 0 to 30% by mass, respectively: (m1) an alkyl(meth)acrylate monomer having an alkyl group with 1 to 12 carbon atoms, which is represented by Formula (1), [Chem. 1] CH2═C(R1)COOR2   (1) (in Formula (I), R1 represents a hydrogen atom or a methyl group, and R2 represents an alkyl group with 1 to 12 carbon atoms); (m2) a vinylic monomer having a nitrogen atom(s) in its skeleton (excluding (m3)); (m3) an N-hydroxyalkyl(meth)acrylamide monomer having a hydroxyalkyl group with 1 to 4 carbon atoms; and (m4) a monomer copolymerizable with the above-described (m1) to (m3).

Description

technical field [0001] The present invention relates to an acrylic pressure-sensitive adhesive sheet including an acrylic pressure-sensitive adhesive layer having both corrosion resistance and adhesion reliability, a method for producing the acrylic pressure-sensitive adhesive sheet, and an acrylic pressure-sensitive adhesive A laminated structure of a sheet and an optical member. Background technique [0002] Recently, in order to protect display panels in flat panel displays such as plasma displays (PDPs), liquid crystal displays (LCDs), organic EL displays and field emission displays (FEDs), resin sheets having good impact resistance such as acrylic sheets or The configuration of a polycarbonate plate, or a display panel surface provided with a protective plate (protective panel) such as tempered glass has attracted attention. [0003] Most of such protective panels have a structure for preventing breakage by providing a void wall between the protective panel and the dis...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C09J133/06C09J7/00C09J7/02C09J11/06C09J133/14C09J133/26G02B5/30
CPCC09J133/14C09J133/26C09J2201/606C08F2220/1858C08F220/1808C09J2301/302Y10T428/2887C08F226/08C08F220/56C08F220/58C08F222/102C09J11/06C09J133/066C09J2203/00C09J7/21C09J7/22C09J7/29C09J2301/16
Inventor 冈本昌之丹羽理仁樋口真觉
Owner NITTO DENKO CORP
Features
  • Generate Ideas
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com