Adhesive film and display member including the same
AssigneesSamsung SDI Co., Ltd., Samsung Electronics Co., Ltd.
InventorsSung Hyun Mun, Byeong Do Kwak, Il Jin Kim, Ji Ho Kim, Hyung Rang Moon, Gwang Hwan Lee, Ik Hwan Cho, Jae Hyun Han
Life of this patent
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Abstract
An adhesive film and a display member, the adhesive film being formed of an adhesive composition that includes a monomer mixture comprising a hydroxyl group-containing (meth)acrylate and a comonomer, wherein the adhesive film has a recovery rate of about 40% to about 99%, the recovery rate being determined according to Method A as described herein, and wherein the adhesive film has a bubble generation area of about 0%, the bubble generation area being determined according to Method B as described herein.
Claims19
An adhesive film formed of an adhesive composition that includes a monomer mixture comprising one or more of 2-hydroxyethyl (meth)acrylate, 3-hydroxypropyl (meth)acrylate, 4-hydroxybutyl (meth)acrylate, 2-hydroxypropyl (meth)acrylate, 2-hydroxybutyl (meth)acrylate, and/or 6-hydroxyhexyl (meth)acrylate, as a hydroxyl group-containing mono(meth)acrylate and one or more of methyl acrylate, ethyl acrylate, isopropyl acrylate, n-butyl acrylate, iso-butyl acrylate, hexyl (meth)acrylate, heptyl (meth)acrylate, 2-ethylhexyl acrylate, dodecyl (meth)acrylate, polyethylene oxide monomethyl ether (meth)acrylate, polyethylene oxide monoethyl ether (meth)acrylate, polyethylene oxide monopropyl ether (meth)acrylate, polyethylene oxide monobutyl ether (meth)acrylate, polyethylene oxide monopentyl ether (meth)acrylate, polypropylene oxide monomethyl ether (meth)acrylate, polypropylene oxide monoethyl ether (meth)acrylate, polypropylene oxide monopropyl ether (meth)acrylate, monomethylaminoethyl (meth)acrylate, monoethylaminoethyl (meth)acrylate, monomethylaminopropyl (meth)acrylate, monoethylaminopropyl (meth)acrylate, 2-methoxyethyl (meth)acrylate, 2-methoxypropyl (meth)acrylate, 2-ethoxypropyl (meth)acrylate, 2-acetoacetoxyethyl (meth)acrylate, vinyltrimethoxysilane, and/or vinyltriethoxysilane as a comonomer,
- wherein the adhesive film has a recovery rate of about 40% to about 99%, the recovery rate being determined according to Method A as described herein,
- wherein the adhesive film has a bubble generation area of about 0%, the bubble generation area being determined according to Method B as described herein, and
- wherein the adhesive film has a storage modulus after curing of about 10 kPa to about 1,000 kPa at an entire temperature range of −20° C. to 80° C.
An adhesive film, comprising:
- a hydroxyl group-containing (meth)acrylic copolymer formed from a monomer mixture comprising one or more of 2-hydroxyethyl (meth)acrylate, 3-hydroxypropyl (meth)acrylate, 4-hydroxybutyl (meth)acrylate, 2-hydroxypropyl (meth)acrylate, 2-hydroxybutyl (meth)acrylate, and/or 6-hydroxyhexyl (meth)acrylate, as a hydroxyl group-containing mono(meth)acrylate and one or more of methyl acrylate, ethyl acrylate, isopropyl acrylate, n-butyl acrylate, iso-butyl acrylate, hexyl (meth)acrylate, heptyl (meth)acrylate, 2-ethylhexyl acrylate, dodecyl (meth)acrylate, polyethylene oxide monomethyl ether (meth)acrylate, polyethylene oxide monoethyl ether (meth)acrylate, polyethylene oxide monopropyl ether (meth)acrylate, polyethylene oxide monobutyl ether (meth)acrylate, polyethylene oxide monopentyl ether (meth)acrylate, polypropylene oxide monomethyl ether (meth)acrylate, polypropylene oxide monoethyl ether (meth)acrylate, polypropylene oxide monopropyl ether (meth)acrylate, monomethylaminoethyl (meth)acrylate, monoethylaminoethyl (meth)acrylate, monomethylaminopropyl (meth)acrylate, monoethylaminopropyl (meth)acrylate, 2-methoxyethyl (meth)acrylate, 2-methoxypropyl (meth)acrylate, 2-ethoxypropyl (meth)acrylate, 2-acetoacetoxyethyl (meth)acrylate, vinyltrimethoxysilane, and/or vinyltriethoxysilane as a comonomer;
- and
- nanoparticles having an average particle diameter of about 5 nm to about 400 nm,
- wherein the adhesive film has a haze of about 4% or less according to ASTM D1003-95 for a specimen thickness of about 100 μm, and
- wherein the adhesive film has a storage modulus after curing of about 10 kPa to about 1,000 kPa at an entire temperature range of −20° C. to 80° C.
Dependencies are inferred from the claim text.