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US 2026/0286189 A1Published application
Adhesive composition, laminate, method of manufacturing laminate, and method of manufacturing processed substrate
AssigneeNissan Chemical Corporation
InventorsYuki USUI, Takahisa OKUNO, Masaki YANAI, Tetsuya SHINJO
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Abstract
An adhesive composition, wherein the adhesive composition is applied to obtain an adhesive coating layer having a complex viscosity of 10 Pa·s or more and 10,000 Pa·s or less at 25° C. or more and 100° C. or less, and the adhesive coating layer has a viscosity reduction rate of 80% or less determined by the following formula (1): Viscosity reduction rate ( % ) = ( ( V 2 5 - V 1 0 0 ) / V 2 5 ) × 100 Formula ( 1 ) wherein V25: Complex viscosity at 25° C., and V100: Complex viscosity at 100° C.
Claims4
A laminate comprising:
- a first substrate;
- a second substrate;
- and an adhesive layer provided between the first substrate and the second substrate, the adhesive layer being formed via an adhesive composition, the adhesive composition being configured such that when the adhesive composition is applied the adhesive coating layer that is obtained is an adhesive coating layer in which:
- a complex viscosity of 10 Pa·s or more and 10,000 Pa·s or less at 25° C. or more and 100° C. or less, and
- a viscosity reduction rate of 80% or less determined by the following formula (1):
- Viscosity
-
- reduction
-
- rate
-
- (
- %
- )
- =
- (
- (
- V
- 2
-
- 5
- -
- V
- 1
-
- 0
-
- 0
- )
- /
- V
- 2
-
- 5
- )
- ×
- 100
- Formula
-
- (
- 1
- )
- wherein
- V25:
- Complex viscosity at 25° C., and
- V100:
- Complex viscosity at 100° C.
44 more elements
A laminate comprising:
- a first substrate;
- a second substrate;
- and an adhesive layer provided between the first substrate and the second substrate, wherein the laminate is formed by a process including:
- applying an adhesive composition in an amount effective to form an adhesive coating layer that becomes the adhesive layer;
- and
- bonding the first substrate and the second substrate to each other under heating and pressurization to be in contact with each other through the adhesive coating layer;
- wherein the adhesive coating layer that is formed has:
- a complex viscosity of 10 Pa·s or more and 10,000 Pa·s or less at 25° C. or more and the temperature in the heating or less, and
- a viscosity reduction rate of 80% or less determined by the following formula (2):
- Viscosity
-
- reduction
-
- rate
-
- (
- %
- )
- =
- (
- (
- V
- 2
-
- 5
- -
- V
- T
- )
- /
- V
- 2
-
- 5
- )
- ×
- 100
- Formula
-
- (
- 2
- )
- wherein
- V25:
- Complex viscosity at 25° C., and
- VT:
- Complex viscosity at a temperature in the heating.
44 more elements
Dependencies are inferred from the claim text.