Photosensitive resin composition and photosensitive element employing using the same
OwnerHiroko Miyoshi, Akio Nakano +1inventors
InventorsHiroko Miyoshi, Akio Nakano, Katsunori Tsuchiya
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Abstract
A photosensitive resin composition for formation of a spacer layer in an optical disk comprising: two transparent substrates positioned opposite each other; and a recording layer and spacer layer positioned between the opposing sides of the transparent substrates, wherein the photosensitive resin composition comprises: a binder polymer; a photopolymerizable compound having an ethylenic unsaturated bond; and a photopolymerization initiator, and has a glass transition temperature after curing of 100 to 180° C.
Claims34
A photosensitive resin composition for formation of a spacer layer in an optical disk comprising:
- two transparent substrates positioned opposite each other;
- and a recording layer and spacer layer positioned between the opposing sides of the transparent substrates,
- wherein the photosensitive resin composition comprises:
- a binder polymer;
- a photopolymerizable compound having an ethylenic unsaturated bond;
- and
- a photopolymerization initiator,
- and has a glass transition temperature after curing of 100 to 180° C.
A photosensitive resin composition for formation of a spacer layer in an optical disk comprising:
- two transparent substrates positioned opposite each other;
- and a recording layer and spacer layer positioned between the opposing sides of the transparent substrates,
- wherein the photosensitive resin composition comprises:
- a binder polymer;
- a photopolymerizable compound having an ethylenic unsaturated bond;
- and
- a photopolymerization initiator,
- and has a crosslinking density after curing of at least 1100 mmol/L, as calculated by the following formula (1):
- ρ=E′/3φRT (1)
- wherein
- ρ is a crosslinking density;
- T is a temperature 40° C. greater than a temperature at which a maximum value of the loss tangent is exhibited when measuring the dynamic viscoelasticity with varying temperature;
- E′ is a storage elastic modulus at the temperature T;
- φ is a front coefficient;
- and
- R is the gas constant.
A photosensitive resin composition for formation of a spacer layer in an optical disk comprising:
- two transparent substrates positioned opposite each other;
- and a recording layer and spacer layer positioned between the opposing sides of the transparent substrates,
- wherein the photosensitive resin composition comprises:
- a binder polymer;
- a photopolymerizable compound having an ethylenic unsaturated bond;
- and
- a photopolymerization initiator,
- has a glass transition temperature after curing of 100 to 180° C.,
- and has a crosslinking density after curing of at least 1100 mmol/L, as calculated by the following formula (1):
- ρ=E′/3φRT (1)
- wherein
- ρ is a crosslinking density;
- T is a temperature 40° C. greater than a temperature at which a maximum value of the loss tangent is exhibited when measuring the dynamic viscoelasticity with varying temperature;
- E′ is a storage elastic modulus at the temperature T;
- φ is a front coefficient;
- and
- R is the gas constant.
A photosensitive resin composition for formation of a spacer layer in an optical disk comprising:
- two transparent substrates positioned opposite each other;
- and a recording layer and spacer layer positioned between the opposing sides of the transparent substrates,
- wherein the photosensitive resin composition comprises:
- a binder polymer;
- a photopolymerizable compound having an ethylenic unsaturated bond;
- and
- a photopolymerization initiator,
- and the binder polymer comprises an aromatic polycarbonate.
A photosensitive resin composition for formation of a spacer layer in an optical disk comprising:
- two transparent substrates positioned opposite each other;
- and a recording layer and spacer layer positioned between the opposing sides of the transparent substrates,
- wherein the photosensitive resin composition comprises:
- a binder polymer;
- a photopolymerizable compound having an ethylenic unsaturated bond;
- and
- a photopolymerization initiator,
- and the binder polymer includes a polymer having an ethylenic unsaturated bond on a side chain.
A photosensitive resin composition for formation of a transparent protective film or a spacer layer,
- wherein the photosensitive resin composition comprises:
- a binder polymer;
- a photopolymerizable compound with an ethylenic unsaturated bond;
- and
- a photopolymerization initiator,
- and has a glass transition temperature after curing of 100 to 180° C.
A photosensitive resin composition for formation of a transparent protective film or a spacer layer,
- wherein the photosensitive resin composition comprises:
- a binder polymer;
- a photopolymerizable compound having an ethylenic unsaturated bond;
- and
- a photopolymerization initiator,
- and has a crosslinking density after curing of at least 1100 mmol/L, as calculated by the following formula (1):
- ρ=E′/3φRT (1)
- wherein
- ρ is a crosslinking density;
- T is a temperature 40° C. greater than a temperature at which a maximum value of the loss tangent is exhibited when measuring the dynamic viscoelasticity with varying temperature;
- E′ is a storage elastic modulus at the temperature T;
- φ is a front coefficient;
- and
- R is the gas constant.
A photosensitive resin composition for formation of a transparent protective film or a spacer layer,
- wherein the photosensitive resin composition comprises:
- a binder polymer;
- a photopolymerizable compound having an ethylenic unsaturated bond;
- and
- a photopolymerization initiator,
- has a glass transition temperature after curing of 100 to 180° C.,
- and has a crosslinking density after curing of at least 1100 mmol/L, as calculated by the following formula (1):
- ρ=E′/3 RT (1)
- wherein
- ρ is a crosslinking density;
- T is a temperature 40° C. greater than a temperature at which a maximum value of the loss tangent is exhibited when measuring the dynamic viscoelasticity with varying temperature;
- E′ is a storage elastic modulus at the temperature T;
- φ is a front coefficient;
- and
- R is the gas constant.
A photosensitive resin composition used for formation of a protective film or spacer layer,
- wherein the photosensitive resin composition comprises:
- a binder polymer;
- a photopolymerizable compound having an ethylenic unsaturated bond;
- and
- a photopolymerization initiator,
- and the binder polymer comprises an aromatic polycarbonate.
A photosensitive resin composition used for formation of a protective film or spacer layer,
- wherein the photosensitive resin composition comprises:
- a binder polymer;
- a photopolymerizable compound having an ethylenic unsaturated bond;
- and
- a photopolymerization initiator,
- and the binder polymer includes a polymer having an ethylenic unsaturated bond on a side chain.
Dependencies are inferred from the claim text.