Thermal-curable adhesive composition and adhesive sheet
AssigneeTaimide Tech. Inc.
InventorsChih-Wei Lin, Chun-Ting Lai
Life of this patent
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Abstract
The instant disclosure provides a thermal-curable adhesive composition and adhesive sheet. The thermal-curable adhesive composition has a rate of change of adhesion ranging from 80% to 98% and defined by the following equation: V=[(V0−V1)/V0]×100, wherein V is the rate of change of adhesion of the thermal-curable adhesive composition, V0 is the adhesion of the thermal-curable adhesive composition under room temperature, and V1 is the adhesion of the thermal-curable adhesive composition after being heated to a predetermined temperature then cooled to the room temperature.
Claims11
A thermal-curable adhesive composition including a base polymer, at least a thermal-curable group, and a thermal curing agent, wherein based on the weight of the base polymer, a polymerizable carbon-carbon double bond of the thermal-curable group has a content ranging from 0.2 to 10%;
- wherein the thermal-curable adhesive composition having a rate of change of adhesion ranging from 80% to 98% and defined by the following equation:
- V=[(V0−V1)/V0]×100, wherein V is the rate of change of adhesion of the thermal-curable adhesive composition, V0 is an adhesion of the thermal-curable adhesive composition under room temperature, and V1 is the adhesion of the thermal-curable adhesive composition after being heated to a predetermined temperature then cooled to the room temperature;
- wherein the base polymer includes at least a structural unit derived from a monomer, the monomer being an acryloyl group containing the polymerizable carbon-carbon double bond or a methacryloyl group containing the polymerizable carbon-carbon double bond;
- wherein, the thermal-curable group is derived from pentaerythritol tri(meth)acrylate, dipentaerythritol hexa(meth) acrylate, tetraethylene glycol di(meth)acrylate, trimethylolpropane tri(meth) acrylate, 1,6-hexanediol (meth)acrylate, neopentyl glycol di(meth) acrylate or the ester product of (meth)acrylic acid and a polyol;
- ester-acrylate oligomer;
- 2-acryloyl-3-butylcyanurate;
- or isocyanurate and the derivatives thereof.
An adhesive sheet, comprising:
- a base film;
- and
- an adhesive layer disposed on the base film and formed by a thermal-curable adhesive composition, the thermal-curable adhesive composition including a base polymer, at least a thermal-curable group and a thermal curing agent, wherein based on the weight of the base polymer, a polymerizable carbon-carbon double bond of the thermal-curable group has a content ranging from 0.2 to 10%;
- wherein the thermal-curable adhesive composition has a rate of change of adhesion ranging from 80% to 98% and defined by the following equation:
- V=[(V0−V1)/V0]×100, wherein V is the rate of change of adhesion of the thermal-curable adhesive composition, V0 is an adhesion of the thermal-curable adhesive composition under room temperature, and V1 is the adhesion of the thermal-curable adhesive composition after being heated to a predetermined temperature then cooled to the room temperature;
- wherein the base polymer includes at least a structural unit derived from a monomer, the monomer being an acryloyl group containing the polymerizable carbon-carbon double bond or a methacryloyl group containing the polymerizable carbon-carbon double bond;
- wherein, the thermal-curable group is derived from pentaerythritol tri(meth)acrylate, dipentaerythritol hexa(meth) acrylate, tetraethylene glycol di(meth)acrylate, trimethylolpropane tri(meth) acrylate, 1,6-hexanediol (meth)acrylate, neopentyl glycol di(meth) acrylate or the ester product of (meth)acrylic acid and a polyol;
- ester-acrylate oligomer;
- 2-acryloyl-3-butylcyanurate;
- or isocyanurate and the derivatives thereof.
Dependencies are inferred from the claim text.