ADHESIVE ENCAPSULATING COMPOSITION AND ELECTRONIC DEVICES MADE THEREWITH
First Claim
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1. An adhesive encapsulating composition for use in an electronic device, comprising:
- a first polyisobutylene resin having a weight average molecular weight of greater than about 300,000 g/mol; and
a multifunctional (meth)acrylate monomer;
wherein the adhesive encapsulating composition is substantially free of tackifier.
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Abstract
Adhesive encapsulating compositions for use in electronic devices such as organic electroluminescent devices, touch screens, photovoltaic devices, and thin film transistors are disclosed herein. The adhesive encapsulating compositions include pressure sensitive adhesives comprising one or more polyisobutylene resins, in combination with optional multifunctional (meth)acrylate monomers and/or optional tackifiers.
106 Citations
27 Claims
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1. An adhesive encapsulating composition for use in an electronic device, comprising:
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a first polyisobutylene resin having a weight average molecular weight of greater than about 300,000 g/mol; and a multifunctional (meth)acrylate monomer; wherein the adhesive encapsulating composition is substantially free of tackifier. - View Dependent Claims (2, 3, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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4. An adhesive encapsulating composition for use in an electronic device, comprising:
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a first polyisobutylene resin having a weight average molecular weight of greater than about 300,000 g/mol; and a second polyisobutylene resin having a weight average molecular weight of less than about 100,000 g/mol, wherein the adhesive encapsulating composition is substantially free of tackifier. - View Dependent Claims (5, 6, 7, 8)
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9. An adhesive encapsulating composition for use in an electronic device, comprising:
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a second polyisobutylene resin having a weight average molecular weight of less than about 300,000 g/mol; a multifunctional (meth)acrylate monomer; and a tackifier, wherein the adhesive encapsulating composition is free of a first polyisobutylene having a weight average molecular weight of greater than about 300,000 g/mol. - View Dependent Claims (10, 11)
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12. An adhesive encapsulating composition for use in an electronic device, comprising:
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a first polyisobutylene resin having a weight average molecular weight of greater than about 300,000 g/mol, wherein the first polyisobutylene resin comprises 20 wt. % or less of the total weight of the adhesive encapsulating composition; a second polyisobutylene resin having a weight average molecular weight of less than about 300,000 g/mol; a multifunctional (meth)acrylate monomer; and a tackifier. - View Dependent Claims (13, 14)
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Specification