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US 12,668,675 B2Granted
Surface protective film, optical member comprising the same, and display apparatus comprising the same
AssigneeSamsung SDI Co., Ltd.
InventorsDong Myeong Shin, Sung Hyun Mun, Kyoung Gon Park, Il Jin Kim, Do Young Kim
Life of this patent
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Abstract
A surface protective film, an optical member including the same, and a display apparatus including the same are provided. A surface protective film includes: a hard coating layer, a base layer, and an adhesive layer sequentially stacked in the stated order, and a laminate of the hard coating layer and the base layer may have a storage modulus of about 900 MPa to about 1500 MPa at −20° C. and a storage modulus of about 15 MPa to about 100 MPa at 85° C.
Claims20
A surface protective film comprising:
- a hard coating layer, a base layer, and an adhesive layer sequentially stacked in the stated order,
- wherein a laminate of the hard coating layer and the base layer has a storage modulus of about 900 MPa to about 1500 MPa at −20° C. and a storage modulus of about 15 MPa to about 100 MPa at 85° C.,
- wherein the base layer has a storage modulus of about 900 MPa to about 1500 MPa at −20° C. and a storage modulus of about 15 MPa to about 100 MPa at 85° C.,
- wherein the base layer comprises a cast polyurethane film, and
- wherein the hard coating layer is formed of a urethane (meth)acrylate-based hard coating composition consisting of:
- a first urethane (meth)acrylate oligomer;
- a second urethane (meth)acrylate oligomer;
- a (meth)acrylate monomer;
- alumina particles;
- an initiator;
- a fluorine-based additive;
- and optionally, a solvent.
9 more elements
A surface protective film comprising:
- a hard coating layer, a base layer, and an adhesive layer sequentially stacked in the stated order,
- wherein the base layer comprises a cast polyurethane film formed by solution casting and has a Young's modulus of about 80 MPa to about 500 MPa at 25° C., and
- wherein the base layer has a storage modulus of about 900 MPa to about 1500 MPa at −20° C. and a storage modulus of about 15 MPa to about 100 MPa at 85° C., and
- wherein the hard coating layer is formed of a urethane (meth)acrylate-based hard coating composition consisting of:
- a first urethane (meth)acrylate oligomer;
- a second urethane (meth)acrylate oligomer;
- a (meth)acrylate monomer;
- alumina particles;
- an initiator;
- a fluorine-based additive;
- and optionally, a solvent.
8 more elements
Dependencies are inferred from the claim text.