The present invention relates to a polymer film containing a binder resin and polyrotaxane having a specific structure, and a flexible light emitting element display device and a rollable display device including the coating film.

Claims

25 · 1 independent · depth 3

25 granted claims

›1.independentA polymer film comprising:na binder resin having a weight average molecular weight of 30,000 to 800,000; anda polyrotaxane including a macrocycle to w…+24

›2.↳ 1The polymer film of claim 1, whereinnthe polymer film has sufficient flexibility to be bent over a cylindrical steel mandrel having a diameter of 7.0 …d2

›3.↳ 1The polymer film of claim 1, whereinnthe polymer film has a thickness of 5 μm to 100 μm.d2

›4.↳ 1The polymer film of claim 1, whereinnelongation measured according to ASTM D638 at room temperature is 5% to 500%.d2

›5.↳ 1The polymer film of claim 1, whereinnthe polymer film has light transmittance of 92.0% or more and haze of 0.9 or less.d2

›6.↳ 1The polymer film of claim 1, whereinnthe polymer film is used as a substrate, an external protective film, or a cover window of a light emitting eleme…d2

›7.↳ 1The polymer film of claim 1, whereinnthe polymer film has a glass transition temperature of âˆ’80Â° C. to 100Â° C.d2

›8.↳ 1The polymer film of claim 1, whereinnthe binder resin includes at least one selected from a group consisting of a (meth)acrylate-based polymer, a uret…d2

›9.↳ 1The polymer film of claim 1, whereinnthe macrocycle includes at least one selected from a group consisting of α-cyclodextrin, β-cyclodextrin, and γ-cy…d2

›10.↳ 1The polymer film of claim 1, whereinnthe lactone-based compound is directly bonded to the macrocycle or bonded to the macrocycle via a straight or bra…d2

›11.↳ 1The polymer film of claim 1, whereinna residue of the lactone-based compound includes a functional group of the following Chemical Formula 1:d2

›12.↳ 1The polymer film of claim 1, whereinnthe (meth)acrylate-based compound is directly bonded to the end of the lactone-based compound or bonded to the en…d2

›13.↳ 1The polymer film of claim 1, whereinna residue of the (meth)acrylate-based compound bonded to the end of the lactone-based compound includes a functio…d2

›14.↳ 1The polymer film of claim 1, whereinnthe linear molecule is a polyoxyalkylene-based compound or a polylactone-based compound.d2

›15.↳ 1The polymer film of claim 1, whereinnthe linear molecule has a weight average molecular weight of 1000 to 50,000.d2

›16.↳ 1The polymer film of claim 1, whereinnthe blocking group includes at least one functional group selected from a group consisting of a dinitrophenyl gro…d2

›17.↳ 1The polymer film of claim 1, whereinnthe polyrotaxane has a weight average molecular weight of 100,000 to 800,000.d2

›18.↳ 1The polymer film of claim 1, whereinnthe polymer film contains the polyrotaxane at a content of 1 wt % to 50 wt % based on the entire weight of the po…d2

›19.↳ 1The polymer film of claim 1, whereinnthe polymer film has a crosslinked structure between the binder resin and the polyrotaxane.d2

›20.↳ 1The polymer film of claim 1, whereinnthe polymer film contains a multifunctional acrylate-based compound forming a crosslink bond with at least one of…d2

›21.↳ 1A flexible light emitting element display device comprising the polymer film of claim 1.d2+2

›24.↳ 1A rollable display device comprising the polymer film of claim 1.d2+1

Classifications

5 codes

IPC · International Patent Classification

Section C — Chemistry; metallurgy

C09K19/00
C08J7/04

Section H — Electricity

H01L51/00
H01L27/32
H01L51/52

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Pendency

1.9 y

711 days filing → grant

Office actions

non-final + final

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no RCE

Examiner

Ruiyun Zhang

art unit 1782 · TC 1700

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Priority chain

1 priority documents

›Priority documents — 1

Type	Document	Date
related publication	US 20150218323 A1	6 Aug 2015

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