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US4587313A
Expired / Lapsed
US
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Radiation curable pressure-sensitive adhesive composition
Assignee: Resonac Corp
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Filing: 1984-11-20
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Granted: 1986-05-06
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Expires: 2004-11-20
Abstract
Abstract A radiation curable pressure-sensitive adhesive composition comprising 100 parts by weight of a liquid oligomer having one or more acrylic unsaturated double bonds in its molecule, 0.2 to 20 parts by weight of a thiol compound and 0.5 to 30 parts by weight of acrylic monomer has high cohesion and is excellent in adhesiveness.
Inventors
- 👤 Tomohisa Ohta
- 👤 Akihiko Dobashi
- 👤 Yasuyuki Seki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:50
CPC Classifications
C; C08; C08F; C08F290/00; C08F290/08; C08F290/12; C08F290/126; C08G; C08G75/00; C08G75/02; C08G75/04; C08G75/045
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
79 words
A radiation curable pressure-sensitive adhesive composition which comprises 100 parts by weight of a liquid oilgomer having one or more acrylic unsaturated double bonds in its molecule, 0.2 to 20 parts by weight of a thiol compound and 0.5 to 30 parts by weight of at least one acrylic monomer having an acidic group selected from the group consisting of acrylic acid, methacrylic acid, acryloyloxyethyl hydrogenphthalate, 2-acrylamide-2-methylpropane-sulfonic acid, 3-chloro-2-acidophosphoxypropyl methacrylate, 2-acidophos-phoxyethyl acrylate, 2-acidophosphoxypropyl methacrylate, di(2-methacryloyloxyethyl) phosphate, and di(2-acryloyloxyethyl) phosphate.
Claim 2
Dependent Claim
79 words
A radiation curable pressure-sensitive adhesive composition which comprises 100 parts by weight of a liquid oilgomer having one or more acrylic unsaturated double bonds in its molecule, 0.2 to 20 parts by weight of a thiol compound and 0.5 to 30 parts by weight of at least one acrylic monomer having an acidic group selected from the group consisting of acrylic acid, methacrylic acid, acryloyloxyethyl hydrogenphthalate, 2-acrylamide-2-methylpropane-sulfonic acid, 3-chloro-2-acidophosphoxypropyl methacrylate, 2-acidophos-phoxyethyl acrylate, 2-acidophosphoxypropyl methacrylate, di(2-methacryloyloxyethyl) phosphate, and di(2-acryloyloxyethyl) phosphate.
Claim 3
Dependent Claim
33 words
A composition according to claim 1, wherein the liquid oligomer has a molecular weight of 3×10 3 to 5×10 4 and a viscosity of 10 2 to 5×10 5 centipoises at room temperature.
Claim 4
Dependent Claim
17 words
A composition according to claim 1, wherein the thiol compound has a functionality of 2 or more.
Claim 5
Dependent Claim
47 words
A composition according to claim 1, wherein the thiol compound is at least one member selected from the group consisting of octyl thioglycollate, ethanedithiol, hexamethylenedithiol, decamethylenedithiol, tolylene-2,4-dithiol, a thiol therminated ethylcyclohexyl-di-mercaptan polymer, ethylene glycol biscthioglycolate), ethylene glycol bis(β-mercaptopropionate), trimethylolpropane tris(thioglycolate), trimethylolpropane tris(β-mercaptopropionate), pentaerythritol tetrakis(thioglycolate), and pentaerythiotol tetrakis(β-mercaptopropionate).
Claim 6
Dependent Claim
47 words
A composition according to claim 1, wherein the liquid oligomer is obtained by copolymerizing an acrylic ester compound with at least one other polymerizable monomer, the acrylic ester compound being present in the main chain of the oligomer in an amount of at least 60% by weight.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-05-05 | 1989-11-04 | 1990-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-05-05 | 1993-11-04 | 1994-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-05-05 | 1997-11-04 | 1998-05-06 | $7700.00 | Window Closed / Lapsed |